Question: cutin, cutout, project commands - Can they be used in 2D?


Am trying to learn about commands in Maple 7 I have not come across before - namely cutin, cutout and project.  Am I correct in thinking these commands are for use in three dimensions, and won't work in two dimensions?  Examples in the Help section seem to be confined to 3D.

  In the attached program I created a triangle (triag)using the polygon feature, then used project(triag, [[0,0.5],[2,2]]) to see what the resultant plot would be.  It was a line segment with length of the triangle - as if it was the shadow of the triangle.  Am I right in thinking a 3D object would give a 2D shape using this project command?

Thanks, David 

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