__init__ (
        self,
        mappdf,
        thickness,
        imagename,
        dummy,
        )

Initializes an image Map object.

mappdf : the PDF Map object

thickness : unused, but provides a constructor consistent with other MapObjects

imagename : image name or directory name

dummy : unused, but provides a construtor consistent with other MapObjects

draw ( self,  message )

Represents the object as an error message when something went wrong.

realDraw ( self )

Really draws the image object on the PDF map.