EM.Picasso does not allow construction of 3D CAD objects. Instead, you draw the cross section of prismatic objects as planar [[Surface Objects|surface objects]] parallel to the XY plane. [[EM.Cube]] then automatically extrudes these cross sections and constructs and displays 3D prisms over them. The prisms extend all the way across the thickness of the host substrate layer.
== Discretizing the Planar Structures Structure ==
[[Image:PMOM31.png|thumb|400px|The Planar Mesh Settings dialog.]]