TdkCanvas Class Reference
[The Graphics Module]

Defines the TdkCanvas class. Abstraction interface for drawing porpouses. More...

#include <TdkCanvas.h>

Inheritance diagram for TdkCanvas:


Public Types
enum	TdkCanvasBuffer { cbrBack = 0, cbrFront = 1, cbrCache = 2 }
This enum specifies the possible drawing states on canvas.
enum	TdkPaintMode { pmdREPLACE = 1, pmdXOR = 2, pmdNotXOR = 3, pmdNot = 4 }
This enum specifies the possible input and output image formats supported by this canvas API.
See that there are methods free of format, for example: drawImageRGB, drawImageMAP, drawImageGray.
enum	TdkImageType { imtPNG = 1, imtJPEG = 2, imtGIF = 3, imtBMP = 4, imtXPM = 5, imtTIFF = 6, imtWMF = 7 }
enum	TdkClipAreaType { catUnion = 1, catIntersect = 2, catDifference = 3, catNotIntercsect = 4 }
Public Member Functions
Constructor and Destructor Methods
Methods related to instantiation and destruction.
	TdkCanvas ()
	Constructor.
virtual	~TdkCanvas ()
	Virtual destructor.
Canvas configuration
Methods related to canvas configuration.
virtual void	setWindow (const double &llx, const double &lly, const double &urx, const double &ury)
	Adjusts world (or window) coordinates area (supposing a cartesian reference system).
virtual void	setWindow (const TeBox &box)
	Adjusts world (window) coordinates area (supposing a cartesian reference system).
virtual void	getWindow (double &llx, double &lly, double &urx, double &ury)
	Returns the world (window) coordinates area (supposing a cartesian reference system).
virtual void	getWindow (TeBox &window)
virtual void	setViewport (const double &llx, const double &lly, const double &urx, const double &ury)
	Adjusts device coordinates area (supposing a cartesian reference system).
virtual void	setViewport (const TeBox &box)
	Adjusts device coordinates area (supposing a cartesian reference system).
virtual void	getViewport (double &llx, double &lly, double &urx, double &ury)
	Returns the device coordinates area.
virtual void	getViewport (TeBox &viewport)
virtual void	window2Viewport (const double &wx, const double &wy, double &vx, double &vy)
	Transform world (or window) coordinates to device (or viewport) coordinates.
virtual void	window2Viewport (const double &w, double &v, const bool &xdirection=true)
	Transform world (or window) value to device (or viewport) value according to one axis.
virtual void	window2Viewport (const TePolygon &pIn, TePolygon &pOut)
	Transform world (or window) value to device (or viewport) value according to one axis.
virtual void	viewport2Window (const TePolygon &pIn, TePolygon &pOut)
	Transform viewport (or device) coordinates to world (or window) coordinates.
virtual void	viewport2Window (const double &vx, const double &vy, double &wx, double &wy)
	Transform viewport (or device) coordinates to world (or window) coordinates.
virtual void	viewport2Window (const double &v, double &w, const bool &xdirection=true)
	Transform device (or viewpoort) value to world (or window) value according to one axis.
virtual void	setBackgroundColor (const TeColor &c)
	Sets the background color of the canvas to c. This will affect all buffers in use, painting all them with the specified color.
virtual const TeColor &	getBackgroundColor () const
	Returns the current canvas background color.
virtual void	mm2Pixel (const double &mmDx, const double &mmDy, double &pDx, double &pDy)=0
virtual void	pixel2MM (const double &pDx, const double &pDy, double &mmDx, double &mmDy)=0
virtual void	getDimension (double &width, double &height)=0
virtual void	getDimensionMM (double &width, double &height)=0
virtual void	clear ()=0
virtual double	getPixelSize ()
virtual double	getScale ()
virtual TeProjection *	setDataProjection (TeProjection *dataProjection=NULL)
virtual TeProjection *	getDataProjection ()
virtual TeProjection *	setViewProjection (TeProjection *viewProjection=NULL)
virtual TeProjection *	getViewProjection ()
virtual void	useProjection (const bool &useProjection=true)
virtual bool	usingProjection ()
virtual void	toViewProjection (double &x, double &y)
virtual void	toViewProjection (TeCoord2D &coord)
virtual void	toViewProjection (TePoint &point)
virtual void	toViewProjection (TeLine2D &line)
virtual void	toViewProjection (TePolygon &poly)
virtual void	toViewProjection (TeCell &cell)
virtual void	toViewProjection (TeText &text)
virtual void	toViewProjection (TeBox &box)
Behavior Canvas methods
This methods can be used to set canvas behavior during drawing. For example, one can create four buffers (see addBuffer): one to write the vector content; one to write the raster content; one that can be used to draw temporary data, like new geometries in an editor; and a fourth that will be used as a copy (merger) of the three above (raster data below vector data, and new data above the other two). Then the application can manage these buffers: when the user undo the drawing of geometries, only the vector and raster content need to be copy to the fourth buffer, so it will not be necessary to repaint all vector anda raster geometries again. when it is need to do a refresh, one can decide the order to copy to a single one.
virtual void	repaint ()=0
	Do a repaint on canvas.
virtual int	setPaintMode (const int &mode)
	Adjusts canvas drawing mode: ....
virtual int	getPaintMode () const
	Gets current Canvas paint mode.
virtual int	setActiveBuffer (const int &bufferId)
	Sets the current buffer used to draw. This method changes the current buffer used to draw, you should specify a valid identifier, otherwise it will be raised an exception.
virtual const int &	getActiveBuffer () const
	Gets the current buffer identifier or -1 if there is not a current one.
virtual void	addBuffer (const int &bufferId)=0
	Adds a new buffer identified by bufferId. If you try to create another one identified by the same id, it will raise an exception.
virtual void	removeBuffer (const int &bufferId)=0
	Removes the buffer identified by bufferId. If you specify an invalid id, it will be raised an exception.
virtual void	writeBuffer (const int &sourceBuff, const int &destinationBuff, const bool &transparent=false, const int &r=0, const int &g=0, const int &b=0, const int &a=0)=0
	Copies the content of source buffer to a destination buffer (its a pixel a pixel copy). When transparent is set to true, the pixels specified by (r, g, b, a) color will not be copied to the destination buffer.
Drawing methods for TerraLib's geometries using Window (World) Coordinates
Window (World) Coordinates Drawing Methods. These methods (wich have the "W" suffix) can be used to draw on canvas using Window (World) Coordinates. The visual (style) used to draw vector geometries is affected by the visual (style) methods defined in this API.
virtual void	drawPointW (const TePoint &pt)
	Draws a point specified in window (world) coordinates.
virtual void	drawPointsW (TePointSet &points)
	Draws a set of points specified in window (world) coordinates.
virtual void	drawLineW (const TeLine2D &line, const bool &showPoint=false)
	Draws a line with vertexes specified in window (world) coordinates.
virtual void	drawLinesW (TeLineSet &lines, const bool &showPoint=false)
	Draws a set of lines with vertexes specified in window (world) coordinates.
virtual void	drawPolygonW (const TePolygon &poly, const bool &showPoint=false)
	Draws a polygon with vertexes specified in window (world) coordinates.
virtual void	drawPolygonsW (TePolygonSet &polys, const bool &showPoint=false)
	Draws a set of polygons with vetexes specified in window (world) coordinates.
virtual void	drawCellW (const TeCell &cell, const bool &showPoint=false)
	Draws a cell with vetexes specified in window (world) coordinates.
virtual void	drawCellsW (TeCellSet &cells, const bool &showPoint=false)
	Draws a set of cells with vetexes specified in window (world) coordinates..
virtual void	drawTextW (const TeText &text)
	Draws a text with baseline coordinates specified in window (world) coordinates.
virtual void	drawTextsW (TeTextSet &texts)
	Draws a set of texts with baseline coordinates specified in window (world) coordinates.
virtual void	drawRasterW (TeRaster raster, TeRasterTransform transf, const double &angle=0.0, TdkMathMatrix *matrix=NULL)
	Draws the raster.
Drawing methods for auxiliary TerraLib's geometries in Window (World) Coordinates
Window (World) Coordinates Drawing Methods. These methods (wich have the "W" suffix) can be used to draw on canvas using Window (World) Coordinates. The visual (style) used to draw vector geometries is affected by the visual (style) methods defined in this API.
virtual void	drawPointW (const TeCoord2D &coord)
	Draws a point specified in window (world) coordinates.
virtual void	drawBoxW (TeBox &box, const bool &showPoint=false)
	Draws a box specified in window (world) coordinates.
Primitive drawing methods in Window (World) Coordinates
Window (World) Coordinates Drawing Methods. These methods (wich have the "W" suffix) can be used to draw on canvas using Window (World) Coordinates. The visual (style) used to draw vector geometries is affected by the visual (style) methods defined in this API.
virtual void	drawPointW (const double &x, const double &y)
	Draws a point specified in window (world) coordinates.
virtual void	drawLineSegmentW (const double &x0, const double &y0, const double &x1, const double &y1)
	Draws a line segment from (x0, y0) to (x1, y1), specified in window (world) coordinates.
virtual void	drawLineSegmentW (const TeCoord2D &c1, const TeCoord2D &c2)
virtual void	drawRectW (const double &llx, const double &lly, const double &urx, const double &ury)
	Draws a rectangle with lower left corner at (llx, lly) and upper right corner at (urx, ury), specified in window (world) coordinates.
virtual void	drawRectW (const TeBox &rect)
virtual void	fillRectW (const double &llx, const double &lly, const double &urx, const double &ury)
	Fills the rectangle with lower left corner at (llx, lly) and upper right corner at (urx, ury), specified in window (world) coordinates.
virtual void	fillRectW (const TeBox &rect)
virtual void	drawLineW (TdkPrimitiveCoord *line, const int &lineSize)
	Draws a line with vertexes specified in window (world) coordinates.
virtual void	drawPolygonW (TdkPrimitiveCoord poly, int ringSize, const int &nRings)
	Draws a polygon with vertexes specified in window (world) coordinates.
virtual void	drawEllipseW (const double &xc, const double &yc, const double &rx, const double &ry, const double &angle)
	Draws an ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.
virtual void	drawEllipseW (const double &xc, const double &yc, const double &rx1, const double &ry1, const double &rx2, const double &ry2)
	Draws an ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.
virtual void	fillEllipseW (const double &xc, const double &yc, const double &rx, const double &ry, const double &angle)
	Fills the ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.
virtual void	fillEllipseW (const double &xc, const double &yc, const double &rx1, const double &ry1, const double &rx2, const double &ry2)
	Fills the ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.
virtual void	drawArcW (const double &xc, const double &yc, const double &w, const double &h, const double &startAngle, const double &finalAngle)
	Draws an arc defined by a center at (xc, yc), specified in window (world) coordinates, width (w), height (h), the start angle (startAngle) and the final angle (finalAngle).
virtual void	drawSectorW (const double &xc, const double &yc, const double &w, const double &h, const double &startAngle, const double &finalAngle)
	Draws a sector defined by a center coordinate (xc, yc), specified in window (world) coordinates, width (w), height (h), the start angle (startAngle) and the final angle (finalAngle).
virtual void	fillSectorW (const double &xc, const double &yc, const double &w, const double &h, const double &startAngle, const double &finalAngle)
	Fills the sector defined by a center coordinate (xc, yc), specified in window (world) coordinates, width (w), height (h), the start angle (startANgle) and the final angle (finalAngle).
virtual void	drawTextW (const double &x, const double &y, const string &text)
	Draws the text with baseline at (x, y), specified in winodw (world) coordinates.
Drawing methods for TerraLib's geometries using device coordinates
Device Coordinates Drawing Methods. These methods can be used to draw on canvas using Device Coordinates. The visual (style) used to draw vector geometries is affected by the visual (style) methods defined in this API.
virtual void	drawPoint (const TePoint &pt)
	Draws a point specified in device coordinates.
virtual void	drawPoints (TePointSet &points)
	Draws a set of points specified in device coordinates.
virtual void	drawLine (const TeLine2D &line, const bool &showPoint=false)=0
	Draws a line with vertexes specified in device coordinates.
virtual void	drawLines (TeLineSet &lines, const bool &showPoint=false)
	Draws a set of lines with vertexes specified in device coordinates.
virtual void	drawPolygon (const TePolygon &poly, const bool &showPoint=false)=0
	Draws a polygon with vertexes specified in device coordinates.
virtual void	drawPolygons (TePolygonSet &polys, const bool &showPoint=false)
	Draws a set of polygons with vertexes specified in device coordinates.
virtual void	drawCell (const TeCell &cell, const bool &showPoint=false)=0
	Draws a cell with vertexes specified in device coordinates.
virtual void	drawCells (TeCellSet &cells, const bool &showPoint=false)
	Draws a set of cells with vertexes specified in device coordinates.
virtual void	drawText (const TeText &text)
	Draws a text with baseline coordinates specified in device coordinates.
virtual void	drawTexts (TeTextSet &texts)
	Draws a set of texts with baseline coordinates specified in device coordinates.
virtual void	drawRaster (TeRaster raster, TeRasterTransform transf, const double &angle=0.0, TdkMathMatrix *matrix=NULL)=0
	Draws the raster.
Drawing methods for auxiliary TerraLib's geometries using device coordinates
Device Coordinates Drawing Methods. These methods can be used to draw on canvas using Device Coordinates. The visual (style) used to draw vector geometries is affected by the visual (style) methods defined in this API.
virtual void	drawPoint (const TeCoord2D &coord)
	Draws a point specified in device coordinates.
virtual void	drawBox (const TeBox &box, const bool &showPoint=false)
	Draws a box specified in device coordinates.
Primitive drawing methods using device coordinates
Device Coordinates Drawing Methods. These methods can be used to draw on canvas using Device Coordinates. The visual (style) used to draw vector geometries is affected by the visual (style) methods defined in this API.
virtual void	drawPoint (const double &x, const double &y)=0
	Draws a point specified in device coordinates.
virtual void	drawLineSegment (const double &x0, const double &y0, const double &x1, const double &y1)=0
	Draws a line segment from (x0, y0) to (x1, y1), specified in device coordinates.
virtual void	drawLineSegment (const TeCoord2D &c1, const TeCoord2D &c2)=0
virtual void	drawRect (const double &llx, const double &lly, const double &urx, const double &ury)=0
	Draws a rectangle with lower left corner at (llx, lly) and uper right corner at (urx, ury), specified in device coordinates.
virtual void	drawRect (const TeBox &rect)
virtual void	fillRect (const double &llx, const double &lly, const double &urx, const double &ury)=0
	Fills the rectangle with lower left corner at (llx, lly) and uper right corner at (urx, ury), specified in device coordinates.
virtual void	fillRect (const TeBox &rect)
virtual void	drawLine (TdkPrimitiveCoord *line, const int &lineSize)=0
	Draws a line with vertexes specified in device coordinates.
virtual void	drawPolygon (TdkPrimitiveCoord poly, int ringSize, const int &nRings)=0
	Draws a polygon with vertexes specified in device coordinates.
virtual void	drawEllipse (const double &xc, const double &yc, const double &rx, const double &ry, const double &angle)=0
	Draws an ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.
virtual void	drawEllipse (const double &xc, const double &yc, const double &rx1, const double &ry1, const double &rx2, const double &ry2)=0
	Draws an ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.
virtual void	fillEllipse (const double &xc, const double &yc, const double &rx, const double &ry, const double &angle)=0
	Fills the ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.
virtual void	fillEllipse (const double &xc, const double &yc, const double &rx1, const double &ry1, const double &rx2, const double &ry2)=0
	Fills the ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.
virtual void	drawArc (const double &xc, const double &yc, const double &w, const double &h, const double &startAngle, const double &finalAngle)=0
	Draws an arc defined by a center at (xc, yc), specified in device coordinates, width (w), height (h), the start angle (startAngle) and the final angle (finalAngle).
virtual void	drawSector (const double &xc, const double &yc, const double &w, const double &h, const double &startAngle, const double &finalAngle)=0
	Draws a sector defined by a center coordinate (xc, yc), specified in device coordinates, width (w), height (h), the start angle (startANgle) and the final angle (finalAngle).
virtual void	fillSector (const double &xc, const double &yc, const double &w, const double &h, const double &startAngle, const double &finalAngle)=0
	Fills the sector defined by a center coordinate (xc, yc), specified in device coordinates, width (w), height (h), the start angle (startANgle) and the final angle (finalAngle).
virtual void	drawText (const double &x, const double &y, const string &text)=0
	Draws the text with baseline at (x, y), specified in device coordinates.
Drawing methods for images (pixmaps) using Device Coordinates
These methods can be used to draw an image on canvas using Device Coordinates.
virtual void	drawImageRGB (const unsigned int &imgW, const unsigned int &imgH, unsigned char red, unsigned char green, unsigned char *blue, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH)=0
	Draws at (dstX, dstY) the pixels of a RGB image.
virtual void	drawImageRGB (const unsigned int &imgW, const unsigned int &imgH, unsigned char red, unsigned char green, unsigned char *blue, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a RGB image.
virtual void	drawImageRGB (const double &angle, const unsigned int &imgW, const unsigned int &imgH, unsigned char red, unsigned char green, unsigned char *blue, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a RGB image.
virtual void	drawImageRGBA (const unsigned int &imgW, const unsigned int &imgH, unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH)=0
	Draws at (dstX, dstY) the pixels of a RGB-Alpha image.
virtual void	drawImageRGBA (const unsigned int &imgW, const unsigned int &imgH, unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a RGB-Alpha image.
virtual void	drawImageRGBA (const double &angle, const unsigned int &imgW, const unsigned int &imgH, unsigned char red, unsigned char green, unsigned char blue, unsigned char alpha, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a RGB-Alpha image.
virtual void	drawImageMap (const unsigned int &imgW, const unsigned int &imgH, unsigned char index, long int colors, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH)=0
	Draws at (dstX, dstY) the pixels of a palette image.
virtual void	drawImageMap (const unsigned int &imgW, const unsigned int &imgH, unsigned char index, long int colors, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a palette image.
virtual void	drawImageMap (const double &angle, const unsigned int &imgW, const unsigned int &imgH, unsigned char index, long int colors, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a palette image.
virtual void	drawImageGray (const unsigned int &imgW, const unsigned int &imgH, unsigned char *data, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH)=0
	Draws at (dstX, dstY) the pixels of a gray image.
virtual void	drawImageGray (const unsigned int &imgW, const unsigned int &imgH, unsigned char *data, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a gray image.
virtual void	drawImageGray (const double &angle, const unsigned int &imgW, const unsigned int &imgH, unsigned char *data, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const double &srcX, const double &srcY, const unsigned int &srcW=0, const unsigned int &srcH=0)=0
	Draws at (dstX, dstY) the pixels of a gray image.
virtual void	drawImage (char *image, const double &srcX, const double &srcY, const unsigned int &srcW, const unsigned int &srcH, const double &dstX, const double &dstY, const TdkImageType &imageType)=0
	Draws at (dstX, dstY) the srcW by srcH area of pixels from (srcX, srcY) in image of type (imageType).
virtual void	drawImage (char *image, const double &srcX, const double &srcY, const unsigned int &srcW, const unsigned int &srcH, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const TdkImageType &imageType)=0
	Draws at (dstX, dstY) the srcW by srcH area of pixels from (srcX, srcY) in image of type (imageType).
virtual void	drawImage (const double &angle, char *image, const double &srcX, const double &srcY, const unsigned int &srcW, const unsigned int &srcH, const double &dstX, const double &dstY, const unsigned int &dstW, const unsigned int &dstH, const TdkImageType &imageType)=0
	Draws at (dstX, dstY) the srcW by srcH area of pixels from (srcX, srcY) in image of type (imageType).
Gets an image that represent the canvas content
These methods can be used to retrieve an image array from the current canvas buffer content.
virtual void	getImageRGB (const double &x, const double &y, const int &w, const int &h, unsigned char r, unsigned char g, unsigned char *b)=0
	Returns an RGB array from the current canvas buffer content.
virtual void	getImageRGBA (const double &x, const double &y, const int &w, const int &h, unsigned char r, unsigned char g, unsigned char b, unsigned char a)=0
	Returns an RGB-Alpha array from the current canvas buffer content.
virtual void	getImageMap (const double &x, const double &y, const int &w, const int &h, unsigned char index, long int colors)=0
	Returns a Palette Image from the current canvas buffer content.
virtual void	getImageGray (const double &x, const double &y, const int &w, const int &h, unsigned char *data)=0
	Returns a Gray Image from the current canvas buffer content.
virtual char *	getImage (const double &x, const double &y, const int &w, const int &h, TdkImageType imageType, int &size, const int &quality=75)=0
	Returns an image from the current canvas buffer content in a specified format (PNG, JPEG, GIF or other).
Styles configuration
Methods related to styles configuration.
virtual void	setVisual (TdkVisual *v, const TeGeomRep &rep)=0
	Sets the visual for a given geometry type.
virtual void	setPointColor (const int &r, const int &g, const int &b)=0
	Sets the pen color used to draw point geometries.
virtual void	setPointColor (const int &r, const int &g, const int &b, const int &alpha)=0
	Sets the pen color used to draw point geometries.
virtual void	setPointColor (const TeColor &color, const int &alpha)=0
virtual void	setPointAlpha (const int &alpha)=0
	Sets the alpha channel used to draw point geometries.
virtual void	setPointType (const int &type)=0
	Sets the style for draw point geometries.
virtual void	setPointSize (const int &s)=0
	Sets pen size (in pixels) used to draw point geometries.
virtual void	setPointChar (const char &c)=0
virtual void	setLineColor (const int &r, const int &g, const int &b)=0
	Sets the pen color used to draw line geometries.
virtual void	setLineColor (const int &r, const int &g, const int &b, const int &alpha)=0
	Sets the pen color used to draw line geometries.
virtual void	setLineColor (const TeColor &color, const int &alpha)=0
virtual void	setLineAlpha (const int &alpha)=0
	Sets the alpha channel used to draw line geometries.
virtual void	setLineType (const int &type)=0
	Sets the style for draw line geometries.
virtual void	setLineStyleDashes (double *dashArray, const int &size)=0
	Sets an array of custom dashes and spaces for this Pen object.
virtual void	setLineWidth (const int &width)=0
	Sets pen width (in pixels) used to draw line geometries .
virtual void	setPolygonColor (const int &r, const int &g, const int &b)=0
	Sets the color used to fill the draw of polygon geometries.
virtual void	setPolygonColor (const int &r, const int &g, const int &b, const int &alpha)=0
	Sets the color used to fill the draw of polygon geometries.
virtual void	setPolygonColor (const TeColor &color, const int &alpha)=0
virtual void	setPolygonAlpha (const int &alpha)=0
	Sets the alpha channel used to fill the draw of polygon geometries.
virtual void	setPolygonBorderColor (const int &r, const int &g, const int &b)=0
	Sets the pen color used to draw the boundary of polygon geometries.
virtual void	setPolygonBorderColor (const int &r, const int &g, const int &b, const int &alpha)=0
	Sets the pen color used to draw the boundary of polygon geometries.
virtual void	setPolygonBorderColor (const TeColor &color, const int &alpha)=0
virtual void	setPolygonBorderAlpha (const int &alpha)=0
	Sets the alpha channel used to draw the boundary of polygon geometries.
virtual void	setPolygonType (const int &type)=0
	Sets the style for draw line geometries.
virtual void	setPolygonTypeStipple (const int &width, const int &height, unsigned char *fgbg, const int &br, const int &bg, const int &bb)=0
	Fills the polygon with foreground color or a background color (r, g, b) having a mask matrix fgbg (of '0's and '1's).
virtual void	setPolygonTypePattern (const int &width, const int &height, unsigned char r, unsigned char g, unsigned char *b)=0
	Sets the pattern style used to fill the draw of polygon geometries.
virtual void	setPolygonBorderType (const int &type)=0
	Sets the style used to draw the boundary of polygon geometries.
virtual void	setPolygonBorderWidth (const int &width)=0
	Sets pen width (in pixels) used to draw the boundary of polygon geometries .
virtual void	setTextColor (const int &r, const int &g, const int &b)=0
	Sets the color of the text.
virtual void	setTextColor (const int &r, const int &g, const int &b, const int &alpha)=0
	Sets the color of the text.
virtual void	setTextColor (const TeColor &color, const int &alpha)=0
virtual void	setTextAlpha (const int &alpha)=0
	Sets the alpha channel used to draw texts.
virtual void	setTextBackgroundColor (const int &r, const int &g, const int &b)=0
	Sets the background color of the text.
virtual void	setTextBackgroundColor (const int &r, const int &g, const int &b, const int &alpha)=0
	Sets the background color of the text.
virtual void	setTextBackgroundColor (const TeColor &color, const int &alpha)=0
virtual void	setTextBackgroundAlpha (const int &alpha)=0
	Sets the alpha channel used to fill the background of texts.
virtual void	setTextBackgroundType (const int &type)=0
virtual void	setTextBorderColor (const int &r, const int &g, const int &b)=0
virtual void	setTextBorderColor (const int &r, const int &g, const int &b, const int &alpha)=0
virtual void	setTextBorderColor (const TeColor &color, const int &alpha)=0
virtual void	setTextBorderAlpha (const int &alpha)=0
virtual void	setTextBorderType (const int &type)=0
virtual void	setTextBorderWidth (const int &width)=0
virtual void	setTextFont (const string &fontName)=0
	Sets the font family of the text.
virtual void	setTextSize (const int &size)=0
	Sets the size of the text.
virtual void	setTextAngle (const double &angle)=0
	Adjusts the angle used to draw texts.
virtual void	setTextBold (const bool &bold=true)=0
	Sets the bold style for text.
virtual void	setTextItalic (const bool &italic=true)=0
	Sets the italic style for text.
virtual void	setTextAlign (const double &alignmentHoriz, const double &alignmentVert)=0
	Sets the alignment of the text.
virtual void	getTextAlign (double &alignmentHoriz, double &alignmentVert)=0
Utilities methods.
Utilitarian methods.
virtual void	getTextBoundsW (const string &text, const double &x, const double &y, const double &angle, TdkTextBounds &bounds)=0
	Returns the bounding box of a text in world coordinates.
virtual void	getTextBounds (const string &text, const double &x, const double &y, const double &angle, TdkTextBounds &bounds)=0
	Returns the bounding box of a text in device coordinates.
virtual void	getTextBoundsW (const TeText &text, TdkTextBounds &bounds)=0
virtual void	getTextBounds (const TeText &text, TdkTextBounds &bounds)=0
Clipping methods.
These methods can be used to set a sub-region .
virtual void	setClipArea (const TeBox &box)=0
	Establishes a clipping rectangle. Once setClipArea has been called, all future drawing operations will remain within the specified clipping area, until a new setClipArea call takes place. For instance, if a clipping rectangle of 25, 25, 75, 75 has been set within a 100x100 device area, a diagonal line from 0,0 to 99,99 will appear only between 25,25 and 75,75.
virtual void	setClipArea (const double &llx, const double &lly, const double &urx, const double &ury)=0
	Establishes a clipping rectangle. Once setClipArea has been called, all future drawing operations will remain within the specified clipping area, until a new setClipArea call takes place. For instance, if a clipping rectangle of 25, 25, 75, 75 has been set within a 100x100 device area, a diagonal line from 0,0 to 99,99 will appear only between 25,25 and 75,75.
virtual void	getClipArea (double &llx, double &lly, double &urx, double &ury)=0
	Returns the clipping area.
virtual void	setClipArea (const TePolygon &poly)=0
	Establishes a clipping polygon. Once setClipArea has been called, all future drawing operations will remain within the specified polygon clipping area, until a new setClipArea call takes place.
virtual void	setClipArea (const TePolygonSet &polys, const TdkClipAreaType &clipType)=0
virtual void	getClipArea (TePolygon &poly)=0
	Returns the clipping polygon.
virtual void	activateClip ()=0
	Activate clipping mode.
virtual void	deactivateClip ()=0
	Deactivate clipping mode.
Protected Attributes
int	paintMode_
	Current Canvas paint mode.
int	currentBufferId_
	Indicates what is the active current buffer. If this value is set to -1, so there is not a current buffer.
TeColor	backgroundColor_
	Indicates the current canvas background color.
TdkCoordTransformer	transformer_
	This instance can be used to transform coordinates from world to device and device to world.
TeGeomRepVisualMap	visualMap_
	A map with the visual of all geometry types.
TeProjection *	dataProjection_
TeProjection *	viewProjection_
bool	useProjection_

Detailed Description

Defines the TdkCanvas class. Abstraction interface for drawing porpouses.

The TdkCanvas abstract class is an abstraction of a Canvas for drawing porpouses. It has drawing primitives for Terralib geometries (example: TePoint, TeLine, TePolygon). All coordinates must be in cartesian system. Even the device coordinates must be specified in a cartesian system. Each subclass will, at least, implement the methods related to device drawing.

TODO: 1) 2) 3)

See also:: TdkCoordTransformer, TdkPrimitiveCoord, TdkMathMatrix, TeColor, TeVisual, TePoint, TeLine2D, TePolygon, TeRaster, TeCell, TeText

Member Enumeration Documentation

enum TdkCanvas::TdkCanvasBuffer

Enumerator:

cbrBack
cbrFront
cbrCache

enum TdkCanvas::TdkPaintMode

Enumerator:

pmdREPLACE	Allows to overwrite any previous drawing.
pmdXOR	Do a XOR with the pixels in the buffer.
pmdNotXOR	XXXXXXXXX.
pmdNot

enum TdkCanvas::TdkImageType

Enumerator:

imtPNG	For Portable Network Graphics (PNG) support.
imtJPEG	For Joint Photographic Experts Group (JPEG) support.
imtGIF	For Graphics Interchange Format (GIF) support.
imtBMP	For (Window Bitmap) BMP support.
imtXPM	For (X PixMap) support.
imtTIFF	For Tag Image File Format (TIFF) support.
imtWMF	For Windows Metafile (WMF) support.

enum TdkCanvas::TdkClipAreaType

Enumerator:

catUnion
catIntersect
catDifference
catNotIntercsect

Constructor & Destructor Documentation

TdkCanvas::TdkCanvas ( )

Constructor.

virtual TdkCanvas::~TdkCanvas ( ) [inline, virtual]

Virtual destructor.

Member Function Documentation

void TdkCanvas::setWindow	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury
	)			`[inline, virtual]`

Adjusts world (or window) coordinates area (supposing a cartesian reference system).

Parameters:

	llx	Lower left abscissa. (Input)
	lly	Lower left ordinate. (Input)
	urx	Upper left abscissa. (Input)
	ury	Upper left ordinate. (Input)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::setWindow ( const TeBox & box ) [inline, virtual]

Adjusts world (window) coordinates area (supposing a cartesian reference system).

Parameters:

box

Bounding box of world. (Input)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::getWindow	(	double &	llx,
		double &	lly,
		double &	urx,
		double &	ury
	)			`[inline, virtual]`

Returns the world (window) coordinates area (supposing a cartesian reference system).

Parameters:

	llx	Lower left abscissa. (Output)
	lly	Lower left ordinate. (Output)
	urx	Upper left abscissa. (Output)
	ury	Upper left ordinate. (Output)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::getWindow ( TeBox & window ) [inline, virtual]

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::setViewport	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury
	)			`[inline, virtual]`

Adjusts device coordinates area (supposing a cartesian reference system).

Parameters:

	llx	Lower left abscissa. (Input)
	lly	Lower left ordinate. (Input)
	urx	Upper left abscissa. (Input)
	ury	Upper left ordinate. (Input)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::setViewport ( const TeBox & box ) [inline, virtual]

Adjusts device coordinates area (supposing a cartesian reference system).

Parameters:

box

Device bounding box. (Input)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::getViewport	(	double &	llx,
		double &	lly,
		double &	urx,
		double &	ury
	)			`[inline, virtual]`

Returns the device coordinates area.

Parameters:

	llx	Lower left abscissa. (Output)
	lly	Lower left ordinate. (Output)
	urx	Upper left abscissa. (Output)
	ury	Upper left ordinate. (Output)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::getViewport ( TeBox & viewport ) [inline, virtual]

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::window2Viewport	(	const double &	wx,
		const double &	wy,
		double &	vx,
		double &	vy
	)			`[inline, virtual]`

Transform world (or window) coordinates to device (or viewport) coordinates.

Parameters:

	wx	World (or window) abscissa. (Input)
	wy	World (or window) ordinate. (Input)
	vx	Viewport (or device) abscissa. (Output)
	vy	Viewport (or device) ordinate. (Output)

Reimplemented in TdkJNICanvas.

void TdkCanvas::window2Viewport	(	const double &	w,
		double &	v,
		const bool &	xdirection = `true`
	)			`[inline, virtual]`

Transform world (or window) value to device (or viewport) value according to one axis.

Parameters:

	w	World (or window) value. (Input)
	v	Viewport (or device) value. (Output)
	xdirection	If world and device don't keep aspect ratio you should specify what axis to consider. (Input)

Reimplemented in TdkJNICanvas.

void TdkCanvas::window2Viewport	(	const TePolygon &	pIn,
		TePolygon &	pOut
	)			`[inline, virtual]`

Transform world (or window) value to device (or viewport) value according to one axis.

Parameters:

	pIn	Polygon in World coordinates. (Input)
	pOut	Polygon in device coordinates. (Output)
	xdirection	If world and device don't keep aspect ratio you should specify what axis to consider. (Input)

Reimplemented in TdkJNICanvas.

void TdkCanvas::viewport2Window	(	const TePolygon &	pIn,
		TePolygon &	pOut
	)			`[inline, virtual]`

Transform viewport (or device) coordinates to world (or window) coordinates.

Parameters:

	pIn	Viewport (or device) coordinates. (Input)
	pOut	window (or world) coordinates. (Output)

void TdkCanvas::viewport2Window	(	const double &	vx,
		const double &	vy,
		double &	wx,
		double &	wy
	)			`[inline, virtual]`

Transform viewport (or device) coordinates to world (or window) coordinates.

Parameters:

	vx	Viewport (or device) abscissa. (Input)
	vy	Viewport (or device) ordinate. (Input)
	wx	World (or window) abscissa. (Output)
	wy	World (or window) ordinate. (Output)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::viewport2Window	(	const double &	v,
		double &	w,
		const bool &	xdirection = `true`
	)			`[inline, virtual]`

Transform device (or viewpoort) value to world (or window) value according to one axis.

Parameters:

	v	Viewport (or device) value. (Input)
	w	World (or window) value. (Output)
	xdirection	If world and device don't keep aspect ratio you should specify what axis to consider.

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::setBackgroundColor ( const TeColor & c ) [inline, virtual]

Sets the background color of the canvas to c. This will affect all buffers in use, painting all them with the specified color.

Parameters:

Background color that must be applied to canvas. (Input)

Reimplemented in TdkCDCanvas.

const TeColor & TdkCanvas::getBackgroundColor ( ) const [inline, virtual]

Returns the current canvas background color.

virtual void TdkCanvas::mm2Pixel	(	const double &	mmDx,
		const double &	mmDy,
		double &	pDx,
		double &	pDy
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::pixel2MM	(	const double &	pDx,
		const double &	pDy,
		double &	mmDx,
		double &	mmDy
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getDimension	(	double &	width,
		double &	height
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getDimensionMM	(	double &	width,
		double &	height
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::clear ( ) [pure virtual]

Implemented in TdkJNICanvas, and TdkCDCanvas.

double TdkCanvas::getPixelSize ( ) [virtual]

double TdkCanvas::getScale ( ) [virtual]

TeProjection * TdkCanvas::setDataProjection ( TeProjection * dataProjection = NULL ) [inline, virtual]

TeProjection * TdkCanvas::getDataProjection ( ) [inline, virtual]

TeProjection * TdkCanvas::setViewProjection ( TeProjection * viewProjection = NULL ) [inline, virtual]

Reimplemented in TdkCDCanvas.

TeProjection * TdkCanvas::getViewProjection ( ) [inline, virtual]

void TdkCanvas::useProjection ( const bool & useProjection = true ) [inline, virtual]

bool TdkCanvas::usingProjection ( ) [inline, virtual]

void TdkCanvas::toViewProjection	(	double &	x,
		double &	y
	)			`[virtual]`

void TdkCanvas::toViewProjection ( TeCoord2D & coord ) [virtual]

void TdkCanvas::toViewProjection ( TePoint & point ) [virtual]

void TdkCanvas::toViewProjection ( TeLine2D & line ) [virtual]

void TdkCanvas::toViewProjection ( TePolygon & poly ) [virtual]

void TdkCanvas::toViewProjection ( TeCell & cell ) [virtual]

void TdkCanvas::toViewProjection ( TeText & text ) [virtual]

void TdkCanvas::toViewProjection ( TeBox & box ) [virtual]

virtual void TdkCanvas::repaint ( ) [pure virtual]

Do a repaint on canvas.

Implemented in TdkJNICanvas, and TdkCDCanvas.

int TdkCanvas::setPaintMode ( const int & mode ) [inline, virtual]

Adjusts canvas drawing mode: ....

Parameters:

mode

The mode can be one of the following: ..... (Input)

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

int TdkCanvas::getPaintMode ( ) const [inline, virtual]

Gets current Canvas paint mode.

Reimplemented in TdkJNICanvas.

int TdkCanvas::setActiveBuffer ( const int & bufferId ) [inline, virtual]

Sets the current buffer used to draw. This method changes the current buffer used to draw, you should specify a valid identifier, otherwise it will be raised an exception.

Parameters:

bufferId

Buffer identification: it is a key for identify a given buffer. (Input)

Returns:: Return the previous buffer id that was active or -1 if the buffer could not be found.

Reimplemented in TdkJNICanvas, and TdkCDCanvas.

const int & TdkCanvas::getActiveBuffer ( ) const [inline, virtual]

Gets the current buffer identifier or -1 if there is not a current one.

virtual void TdkCanvas::addBuffer ( const int & bufferId ) [pure virtual]

Adds a new buffer identified by bufferId. If you try to create another one identified by the same id, it will raise an exception.

Parameters:

bufferId

The buffer identification associated to the new buffer. Must be a value greater than -1. (Input)

Note:: bufferId must be greater than -1.

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::removeBuffer ( const int & bufferId ) [pure virtual]

Removes the buffer identified by bufferId. If you specify an invalid id, it will be raised an exception.

Parameters:

bufferId

The identification of the buffer to be removed. (Input)

Note:: If the buffer is the current one, you should specify a new active (current) buffer, otherwise, you can get an undefined result.

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::writeBuffer	(	const int &	sourceBuff,
		const int &	destinationBuff,
		const bool &	transparent = `false`,
		const int &	r = `0`,
		const int &	g = `0`,
		const int &	b = `0`,
		const int &	a = `0`
	)			`[pure virtual]`

Copies the content of source buffer to a destination buffer (its a pixel a pixel copy). When transparent is set to true, the pixels specified by (r, g, b, a) color will not be copied to the destination buffer.

Parameters:

	sourceBuff	Source buffer, from wich the pixels will be copied to a destination buffer. (Input)
	destinationBuff	Destination buffer, to wich the pixels will be copied. (Input)
	transparent	Indicates if we will have a transparent color during copy, i. e., the pixels with the specified color that will not be copied from the source buffer to the destination. (Input)
	r	Red component color. (Input)
	g	Green component color. (Input)
	b	Blue component color. (Input)
	a	Alpha component. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::drawPointW ( const TePoint & pt ) [virtual]

Draws a point specified in window (world) coordinates.

Parameters:

TerraLib point instance. (Input)

void TdkCanvas::drawPointsW ( TePointSet & points ) [virtual]

Draws a set of points specified in window (world) coordinates.

Parameters:

points

TerraLib pointset instance. (Input)

void TdkCanvas::drawLineW	(	const TeLine2D &	line,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a line with vertexes specified in window (world) coordinates.

Parameters:

	line	TerraLib line instance. (Input)
	showPoint	If true the line vertexes will be drawn. (Input)

void TdkCanvas::drawLinesW	(	TeLineSet &	lines,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a set of lines with vertexes specified in window (world) coordinates.

Parameters:

	lines	TerraLib lineset instance. (Input)
	showPoint	If true the line vertexes will be drawn. (Input)

void TdkCanvas::drawPolygonW	(	const TePolygon &	poly,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a polygon with vertexes specified in window (world) coordinates.

Parameters:

	poly	TerraLib polygon instance. (Input)
	showPoint	If true the polygon vertexes will be drawn. (Input)

void TdkCanvas::drawPolygonsW	(	TePolygonSet &	polys,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a set of polygons with vetexes specified in window (world) coordinates.

Parameters:

	polys	TerraLib polygonset instance. (Input)
	showPoint	If true the polygon vertexes will be drawn. (Input)

void TdkCanvas::drawCellW	(	const TeCell &	cell,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a cell with vetexes specified in window (world) coordinates.

Parameters:

	cell	TerraLib cell instance. (Input)
	showPoint	If true the cell vertexes will be drawn. (Input)

void TdkCanvas::drawCellsW	(	TeCellSet &	cells,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a set of cells with vetexes specified in window (world) coordinates..

Parameters:

	cells	TerraLib cellset instance. (Input)
	showPoint	If true the cell vertexes will be drawn. (Input)

void TdkCanvas::drawTextW ( const TeText & text ) [virtual]

Draws a text with baseline coordinates specified in window (world) coordinates.

Parameters:

text

TerraLib text instance. (Input)

void TdkCanvas::drawTextsW ( TeTextSet & texts ) [virtual]

Draws a set of texts with baseline coordinates specified in window (world) coordinates.

Parameters:

texts

TerraLib textset instance. (Input)

void TdkCanvas::drawRasterW	(	TeRaster *	raster,
		TeRasterTransform *	transf,
		const double &	angle = `0.0`,
		TdkMathMatrix *	matrix = `NULL`
	)			`[virtual]`

Draws the raster.

Parameters:

	raster	A pointer to a TerraLib raster instance. (Input)
	transf	A pointer to the raster transform function. (Input)
	angle	The XXXXX. (Input)
	matrix	The XXXX. (Input)

void TdkCanvas::drawPointW ( const TeCoord2D & coord ) [virtual]

Draws a point specified in window (world) coordinates.

Parameters:

coord

TerraLib coordinate instance. (Input)

Reimplemented in TdkCDCanvas.

void TdkCanvas::drawBoxW	(	TeBox &	box,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a box specified in window (world) coordinates.

Parameters:

	box	TerraLib box instance. (Input)
	showPoint	True if the box vertex will be drawn. (Input)

void TdkCanvas::drawPointW	(	const double &	x,
		const double &	y
	)			`[virtual]`

Draws a point specified in window (world) coordinates.

Parameters:

	x	Abscissa: horizontal coordinate (x). (Input)
	y	Ordinate: vertical coordinate (y). (Input)

Reimplemented in TdkCDCanvas.

void TdkCanvas::drawLineSegmentW	(	const double &	x0,
		const double &	y0,
		const double &	x1,
		const double &	y1
	)			`[virtual]`

Draws a line segment from (x0, y0) to (x1, y1), specified in window (world) coordinates.

Parameters:

	x0	Abscissa value indicating the segment begin. (Input)
	y0	Ordinate value indicating the segment begin. (Input)
	x1	Abscissa value indicating the segment end. (Input)
	y1	Ordinate value indicating the segment end. (Input)

void TdkCanvas::drawLineSegmentW	(	const TeCoord2D &	c1,
		const TeCoord2D &	c2
	)			`[virtual]`

void TdkCanvas::drawRectW	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury
	)			`[virtual]`

Draws a rectangle with lower left corner at (llx, lly) and upper right corner at (urx, ury), specified in window (world) coordinates.

Parameters:

	llx	Lower left abscissa. (Input)
	lly	Lower left ordinate. (Input)
	urx	Upper right abscissa. (Input)
	ury	Upper right ordinate. (Input)

void TdkCanvas::drawRectW ( const TeBox & rect ) [virtual]

void TdkCanvas::fillRectW	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury
	)			`[virtual]`

Fills the rectangle with lower left corner at (llx, lly) and upper right corner at (urx, ury), specified in window (world) coordinates.

Parameters:

	llx	Lower left abscissa. (Input)
	lly	Lower left ordinate. (Input)
	urx	Upper right abscissa. (Input)
	ury	Upper right ordinate. (Input)

void TdkCanvas::fillRectW ( const TeBox & rect ) [virtual]

void TdkCanvas::drawLineW	(	TdkPrimitiveCoord *	line,
		const int &	lineSize
	)			`[virtual]`

Draws a line with vertexes specified in window (world) coordinates.

Parameters:

	line	A pointer to line vertexes. (Input)
	lineSize	Number of line vertexes. (Input)

void TdkCanvas::drawPolygonW	(	TdkPrimitiveCoord *	poly,
		int *	ringSize,
		const int &	nRings
	)			`[virtual]`

Draws a polygon with vertexes specified in window (world) coordinates.

Parameters:

	poly	A pointer to polygon vertexes. (Input)
	ringSize	A pointer to an array with each polygon ring size. (Input)
	nRings	The number of rings in the specified polygon. (Input)

void TdkCanvas::drawEllipseW	(	const double &	xc,
		const double &	yc,
		const double &	rx,
		const double &	ry,
		const double &	angle
	)			`[virtual]`

Draws an ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx	X axis width (in the same window unit). (Input)
	ry	Y axis width (in the same window unit). (Input)
	angle	Angle to rotate the ellipse round "x" axis. (Input)

void TdkCanvas::drawEllipseW	(	const double &	xc,
		const double &	yc,
		const double &	rx1,
		const double &	ry1,
		const double &	rx2,
		const double &	ry2
	)			`[virtual]`

Draws an ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx1	First conjugate radius (in the same window unit). (Input)
	ry1	First conjugate radius (in the same window unit). (Input)
	rx2	Second conjugate radius (in the same window unit). (Input)
	ry2	Second conjugate radius (in the same window unit). (Input)

void TdkCanvas::fillEllipseW	(	const double &	xc,
		const double &	yc,
		const double &	rx,
		const double &	ry,
		const double &	angle
	)			`[virtual]`

Fills the ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx	X axis width (in the same window unit). (Input)
	ry	Y axis width (in the same window unit). (Input)
	angle	Angle to rotate the ellipse round "x" axis. (Input)

void TdkCanvas::fillEllipseW	(	const double &	xc,
		const double &	yc,
		const double &	rx1,
		const double &	ry1,
		const double &	rx2,
		const double &	ry2
	)			`[virtual]`

Fills the ellipse with center at (xc, yc), specified in window (world) coordinates, x axis width r1 and y axis width r2, especified in the same window (world) unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx1	First conjugate radius (in the same window unit). (Input)
	ry1	First conjugate radius (in the same window unit). (Input)
	rx2	Second conjugate radius (in the same window unit). (Input)
	ry2	Second conjugate radius (in the same window unit). (Input)

void TdkCanvas::drawArcW	(	const double &	xc,
		const double &	yc,
		const double &	w,
		const double &	h,
		const double &	startAngle,
		const double &	finalAngle
	)			`[virtual]`

Draws an arc defined by a center at (xc, yc), specified in window (world) coordinates, width (w), height (h), the start angle (startAngle) and the final angle (finalAngle).

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	w	Width (in the same window unit). (Input)
	h	Height (in the same window unit). (Input)
	startAngle	Start angle in decimal degrees. (Input)
	finalAngle	Final angle in decimal degrees. (Input)

void TdkCanvas::drawSectorW	(	const double &	xc,
		const double &	yc,
		const double &	w,
		const double &	h,
		const double &	startAngle,
		const double &	finalAngle
	)			`[virtual]`

Draws a sector defined by a center coordinate (xc, yc), specified in window (world) coordinates, width (w), height (h), the start angle (startAngle) and the final angle (finalAngle).

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	w	Width (in the same window unit). (Input)
	h	Height (in the same window unit). (Input)
	startAngle	Start angle in decimal degrees. (Input)
	finalAngle	Final angle in decimal degrees. (Input)

void TdkCanvas::fillSectorW	(	const double &	xc,
		const double &	yc,
		const double &	w,
		const double &	h,
		const double &	startAngle,
		const double &	finalAngle
	)			`[virtual]`

Fills the sector defined by a center coordinate (xc, yc), specified in window (world) coordinates, width (w), height (h), the start angle (startANgle) and the final angle (finalAngle).

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	w	Width (in the same window unit). (Input)
	h	Height (in the same window unit). (Input)
	startAngle	Start angle in decimal degrees. (Input)
	finalAngle	Final angle in decimal degrees. (Input)

void TdkCanvas::drawTextW	(	const double &	x,
		const double &	y,
		const string &	text
	)			`[virtual]`

Draws the text with baseline at (x, y), specified in winodw (world) coordinates.

Parameters:

	x	Baseline abscissa. (Input)
	y	Baseline ordinate. (Input)
	text	Text to write over canvas. (Input)

void TdkCanvas::drawPoint ( const TePoint & pt ) [virtual]

Draws a point specified in device coordinates.

Parameters:

TerraLib point instance. (Input)

void TdkCanvas::drawPoints ( TePointSet & points ) [virtual]

Draws a set of points specified in device coordinates.

Parameters:

points

TerraLib pointset instance. (Input)

virtual void TdkCanvas::drawLine	(	const TeLine2D &	line,
		const bool &	showPoint = `false`
	)			`[pure virtual]`

Draws a line with vertexes specified in device coordinates.

Parameters:

	line	TerraLib line instance. (Input)
	showPoint	If true the line vertexes will be drawn. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::drawLines	(	TeLineSet &	lines,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a set of lines with vertexes specified in device coordinates.

Parameters:

	lines	TerraLib lineset instance. (Input)
	showPoint	If true the line vertexes will be drawn. (Input)

virtual void TdkCanvas::drawPolygon	(	const TePolygon &	poly,
		const bool &	showPoint = `false`
	)			`[pure virtual]`

Draws a polygon with vertexes specified in device coordinates.

Parameters:

	poly	TerraLib polygon instance. (Input)
	showPoint	If true the polygon vertexes will be drawn. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::drawPolygons	(	TePolygonSet &	polys,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a set of polygons with vertexes specified in device coordinates.

Parameters:

	polys	TerraLib polygonset instance. (Input)
	showPoint	If true the polygon vertexes will be drawn. (Input)

virtual void TdkCanvas::drawCell	(	const TeCell &	cell,
		const bool &	showPoint = `false`
	)			`[pure virtual]`

Draws a cell with vertexes specified in device coordinates.

Parameters:

	cell	TerraLib cell instance. (Input)
	showPoint	If true the cell vertexes will be drawn. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::drawCells	(	TeCellSet &	cells,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a set of cells with vertexes specified in device coordinates.

Parameters:

	cells	TerraLib cellset instance. (Input)
	showPoint	If true the cell vertexes will be drawn. (Input)

void TdkCanvas::drawText ( const TeText & text ) [virtual]

Draws a text with baseline coordinates specified in device coordinates.

Parameters:

text

TerraLib text instance. (Input)

void TdkCanvas::drawTexts ( TeTextSet & texts ) [virtual]

Draws a set of texts with baseline coordinates specified in device coordinates.

Parameters:

texts

TerraLib textset instance. (Input)

void TdkCanvas::drawRaster	(	TeRaster *	raster,
		TeRasterTransform *	transf,
		const double &	angle = `0.0`,
		TdkMathMatrix *	matrix = `NULL`
	)			`[pure virtual]`

Draws the raster.

Parameters:

	raster	A pointer to a TerraLib raster instance. (Input)
	transf	A pointer to the raster transform function. (Input)
	angle	????
	matrix	????

Implemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::drawPoint ( const TeCoord2D & coord ) [virtual]

Draws a point specified in device coordinates.

Parameters:

coord

TerraLib coordinate instance. (Input)

Reimplemented in TdkCDCanvas.

void TdkCanvas::drawBox	(	const TeBox &	box,
		const bool &	showPoint = `false`
	)			`[virtual]`

Draws a box specified in device coordinates.

Parameters:

	box	TerraLib box instance. (Input)
	showPoint	True if the box vertex will be drawn. (Input)

virtual void TdkCanvas::drawPoint	(	const double &	x,
		const double &	y
	)			`[pure virtual]`

Draws a point specified in device coordinates.

Parameters:

	x	Abscissa: horizontal coordinate (x). (Input)
	y	Ordinate: vertical coordinate (y). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawLineSegment	(	const double &	x0,
		const double &	y0,
		const double &	x1,
		const double &	y1
	)			`[pure virtual]`

Draws a line segment from (x0, y0) to (x1, y1), specified in device coordinates.

Parameters:

	x0	Abscissa value indicating the segment begin. (Input)
	y0	Ordinate value indicating the segment begin. (Input)
	x1	Abscissa value indicating the segment end. (Input)
	y1	Ordinate value indicating the segment end. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawLineSegment	(	const TeCoord2D &	c1,
		const TeCoord2D &	c2
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawRect	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury
	)			`[pure virtual]`

Draws a rectangle with lower left corner at (llx, lly) and uper right corner at (urx, ury), specified in device coordinates.

Parameters:

	llx	Lower left abscissa. (Input)
	lly	Lower left ordinate. (Input)
	urx	Upper right abscissa. (Input)
	ury	Upper right ordinate. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::drawRect ( const TeBox & rect ) [virtual]

virtual void TdkCanvas::fillRect	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury
	)			`[pure virtual]`

Fills the rectangle with lower left corner at (llx, lly) and uper right corner at (urx, ury), specified in device coordinates.

Parameters:

	llx	Lower left abscissa. (Input)
	lly	Lower left ordinate. (Input)
	urx	Upper right abscissa. (Input)
	ury	Upper right ordinate. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

void TdkCanvas::fillRect ( const TeBox & rect ) [virtual]

virtual void TdkCanvas::drawLine	(	TdkPrimitiveCoord *	line,
		const int &	lineSize
	)			`[pure virtual]`

Draws a line with vertexes specified in device coordinates.

Parameters:

	line	A pointer to line vertexes. (Input)
	lineSize	Number of line vertexes. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawPolygon	(	TdkPrimitiveCoord *	poly,
		int *	ringSize,
		const int &	nRings
	)			`[pure virtual]`

Draws a polygon with vertexes specified in device coordinates.

Parameters:

	poly	A pointer to polygon vertexes. (Input)
	ringSize	A pointer to an array with each polygon ring size. (Input)
	nRings	The number of rings in the specified polygon. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawEllipse	(	const double &	xc,
		const double &	yc,
		const double &	rx,
		const double &	ry,
		const double &	angle
	)			`[pure virtual]`

Draws an ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx	X axis width (in the same device unit). (Input)
	ry	Y axis width (in the same device unit). (Input)
	angle	Angle to rotate the ellipse round "x" axis. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawEllipse	(	const double &	xc,
		const double &	yc,
		const double &	rx1,
		const double &	ry1,
		const double &	rx2,
		const double &	ry2
	)			`[pure virtual]`

Draws an ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx1	First conjugate radius (in the same device unit). (Input)
	ry1	First conjugate radius (in the same device unit). (Input)
	rx2	Second conjugate radius (in the same device unit). (Input)
	ry2	Second conjugate radius (in the same device unit). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::fillEllipse	(	const double &	xc,
		const double &	yc,
		const double &	rx,
		const double &	ry,
		const double &	angle
	)			`[pure virtual]`

Fills the ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx	X axis width (in the same device unit). (Input)
	ry	Y axis width (in the same device unit). (Input)
	angle	Angle to rotate the ellipse round "x" axis. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::fillEllipse	(	const double &	xc,
		const double &	yc,
		const double &	rx1,
		const double &	ry1,
		const double &	rx2,
		const double &	ry2
	)			`[pure virtual]`

Fills the ellipse with center at (xc, yc), specified in device coordinates, x axis width r1 and y axis width r2, especified in the same device unit.

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	rx1	First conjugate radius (in the same device unit). (Input)
	ry1	First conjugate radius (in the same device unit). (Input)
	rx2	Second conjugate radius (in the same device unit). (Input)
	ry2	Second conjugate radius (in the same device unit). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawArc	(	const double &	xc,
		const double &	yc,
		const double &	w,
		const double &	h,
		const double &	startAngle,
		const double &	finalAngle
	)			`[pure virtual]`

Draws an arc defined by a center at (xc, yc), specified in device coordinates, width (w), height (h), the start angle (startAngle) and the final angle (finalAngle).

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	w	Width (in the same device unit). (Input)
	h	Height (in the same device unit). (Input)
	startAngle	Start angle in decimal degrees. (Input)
	finalAngle	Final angle in decimal degrees. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawSector	(	const double &	xc,
		const double &	yc,
		const double &	w,
		const double &	h,
		const double &	startAngle,
		const double &	finalAngle
	)			`[pure virtual]`

Draws a sector defined by a center coordinate (xc, yc), specified in device coordinates, width (w), height (h), the start angle (startANgle) and the final angle (finalAngle).

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	w	Width (in the same device unit). (Input)
	h	Height (in the same device unit). (Input)
	startAngle	Start angle in decimal degrees. (Input)
	finalAngle	Final angle in decimal degrees. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::fillSector	(	const double &	xc,
		const double &	yc,
		const double &	w,
		const double &	h,
		const double &	startAngle,
		const double &	finalAngle
	)			`[pure virtual]`

Fills the sector defined by a center coordinate (xc, yc), specified in device coordinates, width (w), height (h), the start angle (startANgle) and the final angle (finalAngle).

Parameters:

	xc	Center abscissa. (Input)
	yc	Center ordinate. (Input)
	w	Width (in the same device unit). (Input)
	h	Height (in the same device unit). (Input)
	startAngle	Start angle in decimal degrees. (Input)
	finalAngle	Final angle in decimal degrees. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawText	(	const double &	x,
		const double &	y,
		const string &	text
	)			`[pure virtual]`

Draws the text with baseline at (x, y), specified in device coordinates.

Parameters:

	x	Baseline abscissa. (Input)
	y	Baseline ordinate. (Input)
	text	Text to write over canvas. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageRGB	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	red,
		unsigned char *	green,
		unsigned char *	blue,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a RGB image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	red	Pointer to red pixel component array. (Input)
	green	Pointer to green pixel component array. (Input)
	blue	Pointer to blue pixel component array. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageRGB	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	red,
		unsigned char *	green,
		unsigned char *	blue,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a RGB image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	red	Pointer to red pixel component array. (Input)
	green	Pointer to green pixel component array. (Input)
	blue	Pointer to blue pixel component array. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageRGB	(	const double &	angle,
		const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	red,
		unsigned char *	green,
		unsigned char *	blue,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a RGB image.

Parameters:

	angle	Angle in decimal degrees to rotate the image. (Input)
	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	red	Pointer to red pixel component array. (Input)
	green	Pointer to green pixel component array. (Input)
	blue	Pointer to blue pixel component array. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageRGBA	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	red,
		unsigned char *	green,
		unsigned char *	blue,
		unsigned char *	alpha,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a RGB-Alpha image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	red	Pointer to red pixel component array. (Input)
	green	Pointer to green pixel component array. (Input)
	blue	Pointer to blue pixel component array. (Input)
	alpha	Pointer to alpha channel pixel component array. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageRGBA	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	red,
		unsigned char *	green,
		unsigned char *	blue,
		unsigned char *	alpha,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a RGB-Alpha image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	red	Pointer to red pixel component array. (Input)
	green	Pointer to green pixel component array. (Input)
	blue	Pointer to blue pixel component array. (Input)
	alpha	Pointer to alpha channel pixel component array. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageRGBA	(	const double &	angle,
		const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	red,
		unsigned char *	green,
		unsigned char *	blue,
		unsigned char *	alpha,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a RGB-Alpha image.

Parameters:

	angle	Angle in decimal degrees to rotate the image. (Input)
	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	red	Pointer to red pixel component array. (Input)
	green	Pointer to green pixel component array. (Input)
	blue	Pointer to blue pixel component array. (Input)
	alpha	Pointer to alpha channel pixel component array. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageMap	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	index,
		long int *	colors,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a palette image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	index	Pointer to the pixel component. (Input)
	colors	Pointer to the color palette. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageMap	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	index,
		long int *	colors,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a palette image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	index	Pointer to the pixel component. (Input)
	colors	Pointer to the color palette. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageMap	(	const double &	angle,
		const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	index,
		long int *	colors,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a palette image.

Parameters:

	angle	Angle in decimal degrees to rotate the image. (Input)
	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	index	Pointer to the pixel component. (Input)
	colors	Pointer to the color palette. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageGray	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	data,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a gray image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	data	Pointer to the pixel component. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageGray	(	const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	data,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a gray image.

Parameters:

	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	data	Pointer to the pixel component. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImageGray	(	const double &	angle,
		const unsigned int &	imgW,
		const unsigned int &	imgH,
		unsigned char *	data,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW = `0`,
		const unsigned int &	srcH = `0`
	)			`[pure virtual]`

Draws at (dstX, dstY) the pixels of a gray image.

Parameters:

	angle	Angle in decimal degrees to rotate the image. (Input)
	imgW	Source image width. (Input)
	imgH	Source image height. (Input)
	data	Pointer to the pixel component. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding height for drawing on canvas from the ordinate (dstY). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImage	(	char *	image,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW,
		const unsigned int &	srcH,
		const double &	dstX,
		const double &	dstY,
		const TdkImageType &	imageType
	)			`[pure virtual]`

Draws at (dstX, dstY) the srcW by srcH area of pixels from (srcX, srcY) in image of type (imageType).

Parameters:

	image	A pointer to an image (PNG, JPEG or other). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	imageType	Image type: TePNG, TeJPEG, TeGIF, TeBITMAP or others. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImage	(	char *	image,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW,
		const unsigned int &	srcH,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const TdkImageType &	imageType
	)			`[pure virtual]`

Draws at (dstX, dstY) the srcW by srcH area of pixels from (srcX, srcY) in image of type (imageType).

Parameters:

	image	A pointer to an image (PNG, JPEG or other). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding width for drawing on canvas from the ordinate (dstY). (Input)
	imageType	Image type: TePNG, TeJPEG, TeGIF, TeBITMAP or others. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::drawImage	(	const double &	angle,
		char *	image,
		const double &	srcX,
		const double &	srcY,
		const unsigned int &	srcW,
		const unsigned int &	srcH,
		const double &	dstX,
		const double &	dstY,
		const unsigned int &	dstW,
		const unsigned int &	dstH,
		const TdkImageType &	imageType
	)			`[pure virtual]`

Draws at (dstX, dstY) the srcW by srcH area of pixels from (srcX, srcY) in image of type (imageType).

Parameters:

	angle	Angle in decimal degrees to rotate the image. (Input)
	image	A pointer to an image (PNG, JPEG or other). (Input)
	srcX	Initial abscissa position of the pixel on the image to copy to canvas. (Input)
	srcY	Initial ordinate position of the pixel on the image to copy to canvas. (Input)
	srcW	Number of columns (width) to copy from srcX position. (Input)
	srcH	Number of lines (height) to copy from srcY position. (Input)
	dstX	Baseline abscissa on canvas. (Input)
	dstY	Baseline ordinate on canvas. (Input)
	dstW	Bounding width for drawing on canvas from the abscissa (dstX). (Input)
	dstH	Bounding width for drawing on canvas from the ordinate (dstY). (Input)
	imageType	Image type: TePNG, TeJPEG, TeGIF, TeBITMAP or others. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getImageRGB	(	const double &	x,
		const double &	y,
		const int &	w,
		const int &	h,
		unsigned char *	r,
		unsigned char *	g,
		unsigned char *	b
	)			`[pure virtual]`

Returns an RGB array from the current canvas buffer content.

Parameters:

	x	Initial canvas abscissa position to copy pixels from. (Input)
	y	Initial canvas ordinate position to copy pixels from. (Input)
	w	Number of columns (width) to copy from canvas. (Input)
	h	Number of lines (height) to copy from canvas. (Input)
	r	Pointer to a red array component to be writen from canvas. (Output)
	g	Pointer to a green array component to be written from canvas. (Output)
	b	Pointer to a blue array component to be written from canvas. (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getImageRGBA	(	const double &	x,
		const double &	y,
		const int &	w,
		const int &	h,
		unsigned char *	r,
		unsigned char *	g,
		unsigned char *	b,
		unsigned char *	a
	)			`[pure virtual]`

Returns an RGB-Alpha array from the current canvas buffer content.

Parameters:

	x	Initial canvas abscissa position to copy pixels from. (Input)
	y	Initial canvas ordinate position to copy pixels from. (Input)
	w	Number of columns (width) to copy from canvas. (Input)
	h	Number of lines (height) to copy from canvas. (Input)
	r	Pointer to a red array component to write from canvas. (Output)
	g	Pointer to a green array component to be written from canvas. (Output)
	b	Pointer to a blue array component to be written from canvas. (Output)
	a	Pointer to an alpha array component to be written from canvas. (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getImageMap	(	const double &	x,
		const double &	y,
		const int &	w,
		const int &	h,
		unsigned char *	index,
		long int *	colors
	)			`[pure virtual]`

Returns a Palette Image from the current canvas buffer content.

Parameters:

	x	Initial canvas abscissa position to copy pixels from. (Input)
	y	Initial canvas ordinate position to copy pixels from. (Input)
	w	Number of columns (width) to copy from canvas. (Input)
	h	Number of lines (height) to copy from canvas. (Input)
	index	Pointer to a red array component to be written from canvas. (Output)
	colors	Pointer to a green array component to be written from canvas. (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getImageGray	(	const double &	x,
		const double &	y,
		const int &	w,
		const int &	h,
		unsigned char *	data
	)			`[pure virtual]`

Returns a Gray Image from the current canvas buffer content.

Parameters:

	x	Initial canvas abscissa position to copy pixels from. (Input)
	y	Initial canvas ordinate position to copy pixels from. (Input)
	w	Number of columns (width) to copy from canvas. (Input)
	h	Number of lines (height) to copy from canvas. (Input)
	data	Pointer to the pixel array to be written from canvas. (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual char* TdkCanvas::getImage	(	const double &	x,
		const double &	y,
		const int &	w,
		const int &	h,
		TdkImageType	imageType,
		int &	size,
		const int &	quality = `75`
	)			`[pure virtual]`

Returns an image from the current canvas buffer content in a specified format (PNG, JPEG, GIF or other).

Parameters:

	x	Initial canvas abscissa position to copy pixels from. (Input)
	y	Initial canvas ordinate position to copy pixels from. (Input)
	w	Number of columns (width) to copy from canvas. (Input)
	h	Number of lines (height) to copy from canvas. (Input)
	imageType	The desired output format. (Input)
	size	The size of returned image in bytes. (Output)
	quality	Defines the quality desired. It applies to JPEG image. (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setVisual	(	TdkVisual *	v,
		const TeGeomRep &	rep
	)			`[pure virtual]`

Sets the visual for a given geometry type.

Parameters:

	v	Visual that must be applied to a given geometry type. (Input)
	rep	Geometry type that the visual will be applied (may be: TePOLYGON for polygon geometry, TeLINES for line geometry, TePOINTS for point geometry, TeTEXT = 128 for text geometry, TeCELLS for cell geometry). (Input)

Note:: The parameter transparency_ in visual must be an integer value between 0 and 100, it must be converted to 0-255 internally in each implementation.

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPointColor	(	const int &	r,
		const int &	g,
		const int &	b
	)			`[pure virtual]`

Sets the pen color used to draw point geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPointColor	(	const int &	r,
		const int &	g,
		const int &	b,
		const int &	alpha
	)			`[pure virtual]`

Sets the pen color used to draw point geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)
	alpha	Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPointColor	(	const TeColor &	color,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPointAlpha ( const int & alpha ) [pure virtual]

Sets the alpha channel used to draw point geometries.

Parameters:

alpha

Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPointType ( const int & type ) [pure virtual]

Sets the style for draw point geometries.

Parameters:

style

Point style that will be used to draw points. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPointSize ( const int & s ) [pure virtual]

Sets pen size (in pixels) used to draw point geometries.

Parameters:

Pen size (in pixels). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPointChar ( const char & c ) [pure virtual]

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setLineColor	(	const int &	r,
		const int &	g,
		const int &	b
	)			`[pure virtual]`

Sets the pen color used to draw line geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setLineColor	(	const int &	r,
		const int &	g,
		const int &	b,
		const int &	alpha
	)			`[pure virtual]`

Sets the pen color used to draw line geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)
	alpha	Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setLineColor	(	const TeColor &	color,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setLineAlpha ( const int & alpha ) [pure virtual]

Sets the alpha channel used to draw line geometries.

Parameters:

alpha

Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setLineType ( const int & type ) [pure virtual]

Sets the style for draw line geometries.

Parameters:

style

Line style that will be used to draw lines. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setLineStyleDashes	(	double *	dashArray,
		const int &	size
	)			`[pure virtual]`

Sets an array of custom dashes and spaces for this Pen object.

Parameters:

	dashArray	Pointer to an array of real numbers that specifies the length of the custom dashes and spaces. All elements in the array must be positive.
	size	Integer that specifies the number of elements in the dashArray array. The integer must be greater than 0 and not greater than the total number of elements in the array

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setLineWidth ( const int & width ) [pure virtual]

Sets pen width (in pixels) used to draw line geometries .

Parameters:

width

Pen size (in pixels). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonColor	(	const int &	r,
		const int &	g,
		const int &	b
	)			`[pure virtual]`

Sets the color used to fill the draw of polygon geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonColor	(	const int &	r,
		const int &	g,
		const int &	b,
		const int &	alpha
	)			`[pure virtual]`

Sets the color used to fill the draw of polygon geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)
	alpha	Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonColor	(	const TeColor &	color,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonAlpha ( const int & alpha ) [pure virtual]

Sets the alpha channel used to fill the draw of polygon geometries.

Parameters:

alpha

Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonBorderColor	(	const int &	r,
		const int &	g,
		const int &	b
	)			`[pure virtual]`

Sets the pen color used to draw the boundary of polygon geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonBorderColor	(	const int &	r,
		const int &	g,
		const int &	b,
		const int &	alpha
	)			`[pure virtual]`

Sets the pen color used to draw the boundary of polygon geometries.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)
	alpha	Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonBorderColor	(	const TeColor &	color,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonBorderAlpha ( const int & alpha ) [pure virtual]

Sets the alpha channel used to draw the boundary of polygon geometries.

Parameters:

alpha

Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonType ( const int & type ) [pure virtual]

Sets the style for draw line geometries.

Parameters:

style

Line style that will be used to draw lines. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonTypeStipple	(	const int &	width,
		const int &	height,
		unsigned char *	fgbg,
		const int &	br,
		const int &	bg,
		const int &	bb
	)			`[pure virtual]`

Fills the polygon with foreground color or a background color (r, g, b) having a mask matrix fgbg (of '0's and '1's).

Parameters:

	width	Number o columns. (Input)
	height	Number o lines. (Input)
	fgbg	Mask matrix, when '0' we must use the background color (r,g,b) and when the value is '1' we must use the foreground color set in setPolygonColor. (Input)
	br	Red background color. (Input)
	bg	Green background color. (Input)
	bb	Blue background color. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonTypePattern	(	const int &	width,
		const int &	height,
		unsigned char *	r,
		unsigned char *	g,
		unsigned char *	b
	)			`[pure virtual]`

Sets the pattern style used to fill the draw of polygon geometries.

Parameters:

	width	The width of the pattern (number of columns of RGB array). (Input)
	height	The height of the pattern (number of lines of RGB array). (Input)
	r	Pointer to red pixel component array. (Input)
	g	Pointer to green pixel component array. (Input)
	b	Pointer to blue pixel component array. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonBorderType ( const int & type ) [pure virtual]

Sets the style used to draw the boundary of polygon geometries.

Parameters:

style

Line style used to draw a polygon boundary. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setPolygonBorderWidth ( const int & width ) [pure virtual]

Sets pen width (in pixels) used to draw the boundary of polygon geometries .

Parameters:

width

Pen size (in pixels). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextColor	(	const int &	r,
		const int &	g,
		const int &	b
	)			`[pure virtual]`

Sets the color of the text.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextColor	(	const int &	r,
		const int &	g,
		const int &	b,
		const int &	alpha
	)			`[pure virtual]`

Sets the color of the text.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)
	alpha	Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextColor	(	const TeColor &	color,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextAlpha ( const int & alpha ) [pure virtual]

Sets the alpha channel used to draw texts.

Parameters:

alpha

Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBackgroundColor	(	const int &	r,
		const int &	g,
		const int &	b
	)			`[pure virtual]`

Sets the background color of the text.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBackgroundColor	(	const int &	r,
		const int &	g,
		const int &	b,
		const int &	alpha
	)			`[pure virtual]`

Sets the background color of the text.

Parameters:

	r	Red component color value. (Input)
	g	Green component color value. (Input)
	b	Blue component color value. (Input)
	alpha	Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBackgroundColor	(	const TeColor &	color,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBackgroundAlpha ( const int & alpha ) [pure virtual]

Sets the alpha channel used to fill the background of texts.

Parameters:

alpha

Must be a value between 0 and 255, where 0 is opaque and 255 is completely transparent. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBackgroundType ( const int & type ) [pure virtual]

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBorderColor	(	const int &	r,
		const int &	g,
		const int &	b
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBorderColor	(	const int &	r,
		const int &	g,
		const int &	b,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBorderColor	(	const TeColor &	color,
		const int &	alpha
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBorderAlpha ( const int & alpha ) [pure virtual]

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBorderType ( const int & type ) [pure virtual]

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBorderWidth ( const int & width ) [pure virtual]

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextFont ( const string & fontName ) [pure virtual]

Sets the font family of the text.

Parameters:

fontName

Font name. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextSize ( const int & size ) [pure virtual]

Sets the size of the text.

Parameters:

size

Font size. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextAngle ( const double & angle ) [pure virtual]

Adjusts the angle used to draw texts.

Parameters:

angle

Angle in decimal degrees. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextBold ( const bool & bold = true ) [pure virtual]

Sets the bold style for text.

Parameters:

bold

If true, the text will be draw in bold face otherwise not. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextItalic ( const bool & italic = true ) [pure virtual]

Sets the italic style for text.

Parameters:

italic

If true, the text will be draw in italic otherwise not. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setTextAlign	(	const double &	alignmentHoriz,
		const double &	alignmentVert
	)			`[pure virtual]`

Sets the alignment of the text.

Parameters:

	alignmentVert	Vertical alignment. (Input)
	alignmentHoriz	Horizontal alignment. (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getTextAlign	(	double &	alignmentHoriz,
		double &	alignmentVert
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getTextBoundsW	(	const string &	text,
		const double &	x,
		const double &	y,
		const double &	angle,
		TdkTextBounds &	bounds
	)			`[pure virtual]`

Returns the bounding box of a text in world coordinates.

Parameters:

	text	The text to retrieve the bounding box.
	box	A polygon with all text box coordinates (the box may not be parallel to xy axis). (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getTextBounds	(	const string &	text,
		const double &	x,
		const double &	y,
		const double &	angle,
		TdkTextBounds &	bounds
	)			`[pure virtual]`

Returns the bounding box of a text in device coordinates.

Parameters:

	text	The text to retrieve the bounding box.
	box	A polygon with all text box coordinates (the box may not be parallel to xy axis). (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getTextBoundsW	(	const TeText &	text,
		TdkTextBounds &	bounds
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getTextBounds	(	const TeText &	text,
		TdkTextBounds &	bounds
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setClipArea ( const TeBox & box ) [pure virtual]

Establishes a clipping rectangle. Once setClipArea has been called, all future drawing operations will remain within the specified clipping area, until a new setClipArea call takes place. For instance, if a clipping rectangle of 25, 25, 75, 75 has been set within a 100x100 device area, a diagonal line from 0,0 to 99,99 will appear only between 25,25 and 75,75.

Parameters:

box

The box that will delimit the drawing area (in device coordinates). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setClipArea	(	const double &	llx,
		const double &	lly,
		const double &	urx,
		const double &	ury
	)			`[pure virtual]`

Parameters:

	llx	Lower left abscissa (in device coordinates). (Input)
	lly	Lower left ordinate (in device coordinates). (Input)
	urx	Upper left abscissa (in device coordinates). (Input)
	ury	Upper left ordinate (in device coordinates). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getClipArea	(	double &	llx,
		double &	lly,
		double &	urx,
		double &	ury
	)			`[pure virtual]`

Returns the clipping area.

Parameters:

	llx	Lower left abscissa (in device coordinates). (Output)
	lly	Lower left ordinate (in device coordinates). (Output)
	urx	Upper left abscissa (in device coordinates). (Output)
	ury	Upper left ordinate (in device coordinates). (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setClipArea ( const TePolygon & poly ) [pure virtual]

Establishes a clipping polygon. Once setClipArea has been called, all future drawing operations will remain within the specified polygon clipping area, until a new setClipArea call takes place.

Parameters:

poly

The polygon that will delimit the drawing area (in device coordinates). (Input)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::setClipArea	(	const TePolygonSet &	polys,
		const TdkClipAreaType &	clipType
	)			`[pure virtual]`

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::getClipArea ( TePolygon & poly ) [pure virtual]

Returns the clipping polygon.

Parameters:

poly

The current clipping polygon (in device coordinates). (Output)

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::activateClip ( ) [pure virtual]

Activate clipping mode.

Implemented in TdkJNICanvas, and TdkCDCanvas.

virtual void TdkCanvas::deactivateClip ( ) [pure virtual]

Deactivate clipping mode.

Implemented in TdkJNICanvas, and TdkCDCanvas.

Member Data Documentation

int TdkCanvas::paintMode_ [protected]

Current Canvas paint mode.

int TdkCanvas::currentBufferId_ [protected]

Indicates what is the active current buffer. If this value is set to -1, so there is not a current buffer.

TeColor TdkCanvas::backgroundColor_ [protected]

Indicates the current canvas background color.

TdkCoordTransformer TdkCanvas::transformer_ [protected]

This instance can be used to transform coordinates from world to device and device to world.

TeGeomRepVisualMap TdkCanvas::visualMap_ [protected]

A map with the visual of all geometry types.

TeProjection* TdkCanvas::dataProjection_ [protected]

TeProjection* TdkCanvas::viewProjection_ [protected]

bool TdkCanvas::useProjection_ [protected]

The documentation for this class was generated from the following files:

D:/usuarios/rodrigof/svn/tdk/src/peer/components/graphics/TdkCanvas.h
D:/usuarios/rodrigof/svn/tdk/src/peer/components/graphics/TdkCanvas.cpp

Generated on Fri Jun 15 16:54:29 2007 for TDK by

1.5.2

TdkCanvas Class Reference [The Graphics Module]

Public Types

Public Member Functions

Protected Attributes

Detailed Description

Member Enumeration Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation

TdkCanvas Class Reference
[The Graphics Module]