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fl::CanvasPS Class Reference

#include <canvas.h>

Inheritance diagram for fl::CanvasPS:

List of all members.

Public Methods
	CanvasPS (const std::string &fileName, float width, float height)
	width and height are in points. They are used to determine %BoundingBox.
virtual	~CanvasPS ()
virtual void	drawDone ()
	Do any final steps to output the drawing. After this, the effect of draw commands is undefined.
virtual void	drawPoint (const Point &p, unsigned int color=0)
virtual void	drawSegment (const Point &a, const Point &b, unsigned int color=0)
virtual void	drawPolygon (const std::vector< Point > &points, unsigned int color=0)
virtual void	drawCircle (const Point &center, float radius, unsigned int color=0, float startAngle=0, float endAngle=2 *PI)
virtual void	drawEllipse (const Point &center, const Matrix2x2< double > &shape, float radius=1, unsigned int color=0, float startAngle=0, float endAngle=2 *PI, bool inverse=false)
	Draws the set ~x * !shape * x == radius^2. shape has same semantics as a covariance matrix. It transforms a circle into an ellipse. radius, startAngle and endAngle are relative to that circle before it is transformed.
virtual void	drawImage (const Image &image, Point &p, float width=-1, float height=-1)
	width or height == -1 means size is same number of units as pixels in image
virtual void	setTranslation (float x, float y)
	Location of origin in this Canvas' coordinate system.
virtual void	setScale (float x, float y)
	Multiply all coordinates by a factor. Scaling is done before translation.
virtual void	setLineWidth (float width)
	Width of pen for stroking lines, in native units.
void	expandColor (unsigned int color)
Public Attributes
std::ofstream	psf
	"Postscript file"
float	scale
	Used to compute line widths.
float	lineWidth
float	bboxT
	Top of bounding box in points.
float	bboxB
	Bottom.
float	bboxL
	Left.
float	bboxR
	Right.

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Detailed Description

Outputs drawing as a Postscript file

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Constructor & Destructor Documentation

CanvasPS::CanvasPS (  const std::string &    fileName, float    width, float    height )

width and height are in points. They are used to determine %BoundingBox.

CanvasPS::~CanvasPS (    )  [virtual]

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Member Function Documentation

void CanvasPS::drawCircle (  const Point &    center, float    radius, unsigned int    color = 0, float    startAngle = 0, float    endAngle = 2 *PI )  [virtual]

Reimplemented from fl::Canvas.

void CanvasPS::drawDone (    )  [virtual]

Do any final steps to output the drawing. After this, the effect of draw commands is undefined. Reimplemented from fl::Canvas.

void CanvasPS::drawEllipse (  const Point &    center, const Matrix2x2< double > &    shape, float    radius = 1, unsigned int    color = 0, float    startAngle = 0, float    endAngle = 2 *PI, bool    inverse = false )  [virtual]

Draws the set ~x * !shape * x == radius^2. shape has same semantics as a covariance matrix. It transforms a circle into an ellipse. radius, startAngle and endAngle are relative to that circle before it is transformed. Reimplemented from fl::Canvas.

void CanvasPS::drawImage (  const Image &    image, Point &    p, float    width = -1, float    height = -1 )  [virtual]

width or height == -1 means size is same number of units as pixels in image Reimplemented from fl::Canvas.

void CanvasPS::drawPoint (  const Point &    p, unsigned int    color = 0 )  [virtual]

Reimplemented from fl::Canvas.

void CanvasPS::drawPolygon (  const std::vector< Point > &    points, unsigned int    color = 0 )  [virtual]

Reimplemented from fl::Canvas.

void CanvasPS::drawSegment (  const Point &    a, const Point &    b, unsigned int    color = 0 )  [virtual]

Reimplemented from fl::Canvas.

void CanvasPS::expandColor (  unsigned int    color )  [inline]

void CanvasPS::setLineWidth (  float    width )  [virtual]

Width of pen for stroking lines, in native units. Reimplemented from fl::Canvas.

void CanvasPS::setScale (  float    x, float    y )  [virtual]

Multiply all coordinates by a factor. Scaling is done before translation. Reimplemented from fl::Canvas.

void CanvasPS::setTranslation (  float    x, float    y )  [virtual]

Location of origin in this Canvas' coordinate system. Reimplemented from fl::Canvas.

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Member Data Documentation

float fl::CanvasPS::bboxB

Bottom.

float fl::CanvasPS::bboxL

Left.

float fl::CanvasPS::bboxR

Right.

float fl::CanvasPS::bboxT

Top of bounding box in points.

float fl::CanvasPS::lineWidth

std::ofstream fl::CanvasPS::psf

"Postscript file"

float fl::CanvasPS::scale

Used to compute line widths.

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

• canvas.h
• CanvasPS.cc

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