structured graphic displaying a raster image
A RasterRect is a Graphic that displays a raster image defined by a
Raster object. With no transformation, the raster will be drawn with
its lower-left corner at the origin.
- RasterRect(Raster*, Graphic* = nil)
Construct a RasterRect, supplying a Raster object and an optional
graphic from which to obtain an initial transformation. The
RasterRect references the given graphic.
- Raster* GetOriginal()
Return the raster that defines the image that the RasterRect displays.