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:: com :: sun :: star :: rendering ::

interface XParametricPolyPolygon2D
Description
Interface to a dynamic poly-polygon generator, that generates poly-polygons depending on a given parameter value.

The returned poly-polygon should normally be contained in the [0,1]x[0,1] rectangle. At least that is the dimension expected at other places. e.g. Texture.


Methods' Summary
getOutline Query the polygonal outline at the specified value. The returned outline should be clipped to the [0,1]x[0,1] rectangle.  
getColor Query the color value for the polygonal area at the specified parameter value.  
getPointColor Query the color for a dedicated point in the plane.  
getColorSpace Query the color space employed by this object  
Methods' Details
getOutline
XPolyPolygon2D
getOutline( [in] double  t )
raises( ::com::sun::star::lang::IllegalArgumentException );

Description
Query the polygonal outline at the specified value. The returned outline should be clipped to the [0,1]x[0,1] rectangle.
Parameter t
Parameter value in the range [0,1]. During painting, this range is sweeped through starting from 0. When using such a parametric polypolygon for gradients, the area covered by the returned XPolyPolygon2D should be monotonically decreasing with t (unless singularities in e.g. the resulting gradient are desired).
getColor
sequence< ColorComponent >
getColor( [in] double  t )
raises( ::com::sun::star::lang::IllegalArgumentException );

Description
Query the color value for the polygonal area at the specified parameter value.
Parameter t
Parameter value in the range [0,1]. During painting, this range is swept through starting from 0.
getPointColor
sequence< ColorComponent >
getPointColor( [in] ::com::sun::star::geometry::RealPoint2D  point )
raises( ::com::sun::star::lang::IllegalArgumentException );

Description
Query the color for a dedicated point in the plane.
Parameter point
The permissible parameter range for point is [0,1]x[0,1]
getColorSpace
XColorSpace
getColorSpace();

Description
Query the color space employed by this object
Returns
the color space the colors generated by this object are to be interpreted in.
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