IDrawingContext Class Reference

Abstraction of a drawing context. More...

#include <Plot.h>

Inheritance diagram for IDrawingContext:

Public Member Functions
virtual void	drawPoint (const PlotPoint &point)=0
	Adds a single point to the plot. More...
virtual void	drawErrorPoint (const ErrorPlotPoint &point)=0
	Adds a point with error bars to the plot. More...
virtual void	drawLine (const PlotPoint &from, const PlotPoint &to)=0
	Draws a line connecting two points. More...
virtual AutoPtr< IDrawPath >	drawPath ()=0
	Draws a path connecting points. More...
virtual void	setStyle (const Size index)=0
	Changes the current drawing style. More...
virtual void	setTransformMatrix (const AffineMatrix2 &matrix)=0
	Applies the given tranformation matrix on all primitives. More...
Public Member Functions inherited from Polymorphic
virtual	~Polymorphic ()

Detailed Description

Abstraction of a drawing context.

Object operates in plot coordinates.

Definition at line 34 of file Plot.h.

Member Function Documentation

drawErrorPoint()

virtual void IDrawingContext::drawErrorPoint ( const ErrorPlotPoint &  point )

pure virtual

Adds a point with error bars to the plot.

Implemented in TextContext, SvgContext, and GraphicsContext.

drawLine()

virtual void IDrawingContext::drawLine ( const PlotPoint &  from, const PlotPoint &  to  )

pure virtual

Draws a line connecting two points.

The ending points are not drawn; call drawPoint manually if you wish to draw both lines and the points.

Implemented in SvgContext, and GraphicsContext.

drawPath()

virtual AutoPtr<IDrawPath> IDrawingContext::drawPath ( )

pure virtual

Draws a path connecting points.

The path copies the state from the parent drawing context, so if a drawing style of the context changes, the change does not affect already existing paths.

Implemented in TextContext, SvgContext, and GraphicsContext.

drawPoint()

virtual void IDrawingContext::drawPoint ( const PlotPoint &  point )

pure virtual

Adds a single point to the plot.

The plot is drawn by implementation-defined style.

Implemented in TextContext, SvgContext, and GraphicsContext.

setStyle()

virtual void IDrawingContext::setStyle ( const Size  index )

pure virtual

Changes the current drawing style.

Interpretation of the style is implementation-defined. It is assumed that the derived classes will have a predefined set of drawing styles, this function will then selects the style with appropriate index.

Parameters

index

Index of the selected style.

Implemented in GraphicsContext.

setTransformMatrix()

virtual void IDrawingContext::setTransformMatrix ( const AffineMatrix2 &  matrix )

pure virtual

Applies the given tranformation matrix on all primitives.

This does not affect already drawn primitives.

Implemented in SvgContext, and GraphicsContext.

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

• /home/pavel/projects/astro/sph/src/core/post/Plot.h