3DINTERSECTION + DEVELOPED SECTION, perpetual versions
It is 16% cheaper to buy them both!
3DINTERSECTION is an add-on for AUTOCAD or BricsCAD, which determines the 3D intersection curves between 2 sets consisting of 3DFACE, 3DSOLID or 3DMESH entities. The outcome is represented by 3DPOLY entities. It can also generate cross sections and contour lines.
DEVELOPED SECTION is an add-on for AUTOCAD or BricsCAD, which determines the developed (unfolded) section of one set of 3DSOLID, 3DMESH or 3DFACE entities and vertical plans passing through a 2D POLYLINE which may contain arcs. You can actually make the section along any curve. Section can be wrapped or unwrapped.