Converted ISOContours to interface.
Converted ISOContours to interface.

JosephCottam/AbstractRendering,JosephCottam/AbstractRendering,ahmadia/AbstractRendering,JosephCottam/AbstractRendering,ahmadia/AbstractRendering,JosephCottam/AbstractRendering,ahmadia/AbstractRendering,ahmadia/AbstractRendering,ahmadia/AbstractRendering,JosephCottam/AbstractRendering