This article will try help you to understand the usage of the Shell Trimming Body.
- create a spline
- choose Extruded Geometry Method and with Magic Wand create a Shell
- rotate the Shell with Free Rotate option
- place a Wall and see the Design/Connect/Trimming bodies
As you can see by this complicated situation the Downward Extrusion as Trimming Body does not look as you would accept it.
The Upward Extrusion has no problem in this case as the shape of the Shell is very simple
The Editable option will connect the two endpoint of the profile.
If you go to Elevation you can edit the connecting line between the two endpoint with the Insert New Node command from the Pet Palette the following way:
It is easy to adjust the trimming body to produce the desired shape.
If you are using the Design/Connect/Trim Elements to Roof/Shell command now you will get the desired result.