If AutoCAD Raster Design toolset is installed on a geographic application, such as Autodesk Civil 3D or AutoCAD Map 3D toolset, you can transform the coordinate system of an inserted image to match the coordinate system of the drawing. Several types of coordinate transformation are available:
- 3-point affine transform enables AutoCAD Raster Design toolset to handle non-editable data types.
- 4-point rubbersheet transform is an approximate transformation that uses four control points.
- True coordinate transformation applies to each pixel in the image, creating a very accurate representation of the surface.