Generate an iris wipe. More...

Inheritance diagram for slideshow::internal::EllipseWipe:

Collaboration diagram for slideshow::internal::EllipseWipe:

Public Member Functions
	EllipseWipe (sal_Int32 nSubType)

virtual ::basegfx::B2DPolyPolygon	operator() (double x) override
	Retrieve the poly-polygon for value t. More...

Public Member Functions inherited from slideshow::internal::ParametricPolyPolygon
virtual	~ParametricPolyPolygon ()

virtual ::basegfx::B2DPolyPolygon	operator() (double t)=0
	Retrieve the poly-polygon for value t. More...

Detailed Description

Generate an iris wipe.

Definition at line 29 of file ellipsewipe.hxx.

Constructor & Destructor Documentation

slideshow::internal::EllipseWipe::EllipseWipe ( sal_Int32 nSubType )

inlineexplicit

Definition at line 32 of file ellipsewipe.hxx.

basegfx::B2DPolyPolygon slideshow::internal::EllipseWipe::operator() ( double t )

overridevirtual

Retrieve the poly-polygon for value t.

Parameters

t	Current parameter value to retrieve the corresponding poly-polygon for. Permissible values for t must be in the range [0,1].

Returns: a poly-polygon corresponding to the given parameter value. The poly-polygon is interpreted as living in the unit rectangle (i.e. [0,1]x[0,1]), but is not necessarily constrained to completely lie in this area (this very much depends on the actual effect to be generated). Although, from a performance perspective, it currently is advantageous to try to keep the poly-polygon within these bounds (at least if there are no hard reasons not to do so), because then reversion or out transformations are potentially faster to compute (see the TransitionInfo::meReverseMethod member in transitionfactory.cxx). Furthermore, if one of the polygon modifications involve subtraction (also see TransitionInfo::meReverseMethod), all generated polygons should be oriented clock-wise (i.e. traversing the polygon vertices with increasing vertex index should generate a clock-wise movement).

Definition at line 28 of file ellipsewipe.cxx.

References mnSubType, and t.

sal_Int32 slideshow::internal::EllipseWipe::mnSubType

private

Definition at line 35 of file ellipsewipe.hxx.

Referenced by operator()().

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