CDPL.Vis.Path2DConverter Class Reference

Provides an interface for classes that implement the conversion of Vis.Path2D objects into rendering backend specific path descriptions or drawing operations. More...

Inheritance diagram for CDPL.Vis.Path2DConverter:

Public Member Functions
None	__init__ ()
	Initializes the Path2DConverter instance.
int	getObjectID ()
	Returns the numeric identifier (ID) of the wrapped C++ class instance. More...
None	moveTo (float x, float y)
	Called when a Vis.Path2D element created by a Vis.Path2D.moveTo() call is encountered. More...
None	arcTo (float cx, float cy, float rx, float ry, float start_ang, float sweep)
	Called when a Vis.Path2D element created by a Vis.Path2D.arcTo() call is encountered. More...
None	lineTo (float x, float y)
	Called when a Vis.Path2D element created by a Vis.Path2D.lineTo() call is encountered. More...
None	closePath ()
	Called when a Vis.Path2D element created by a Vis.Path2D.closePath() call is encountered.

Properties
	objectID = property(getObjectID)

Detailed Description

Provides an interface for classes that implement the conversion of Vis.Path2D objects into rendering backend specific path descriptions or drawing operations.

See also

Vis.Renderer2D

Since

1.1

Member Function Documentation

getObjectID()

int CDPL.Vis.Path2DConverter.getObjectID

(

)

Returns the numeric identifier (ID) of the wrapped C++ class instance.

Different Python Path2DConverter instances may reference the same underlying C++ class instance. The commonly used Python expression a is not b thus cannot tell reliably whether the two Path2DConverter instances a and b reference different C++ objects. The numeric identifier returned by this method allows to correctly implement such an identity test via the simple expression a.getObjectID() != b.getObjectID().

Returns

The numeric ID of the internally referenced C++ class instance.

moveTo()

None CDPL.Vis.Path2DConverter.moveTo	(	float	x,
		float	y
	)

Called when a Vis.Path2D element created by a Vis.Path2D.moveTo() call is encountered.

Parameters

x	The x-coordinate of the newly set current position.
y	The y-coordinate of the newly set current position.

arcTo()

None CDPL.Vis.Path2DConverter.arcTo	(	float	cx,
		float	cy,
		float	rx,
		float	ry,
		float	start_ang,
		float	sweep
	)

Called when a Vis.Path2D element created by a Vis.Path2D.arcTo() call is encountered.

Parameters

cx	The x-coordinate of the ellipse center.
cy	The y-coordinate of the ellipse center.
rx	The x-radius of the ellipse.
ry	The y-radius of the ellipse.
start_ang	The start angle of the arg in degrees.
sweep	The length of the arg in degrees.

lineTo()

None CDPL.Vis.Path2DConverter.lineTo	(	float	x,
		float	y
	)

Called when a Vis.Path2D element created by a Vis.Path2D.lineTo() call is encountered.

Parameters

x	Specifies the x-coordinate of the line's end point.
y	Specifies the y-coordinate of the line's end point.