How to Create a cage with polysurface
Can you explain more on what you are trying to do? What do you mean by “cage”?
I’m going to deform the surface from one cage to another.
Can we use Polysurface to make such a target cage?
I don’t have a sample of making a box cage, as you show in your image. I do have a sample of cage editing a polysurface using a control line.
To create a box morph object just use the
ON_NurbsCage::Create override that accepts a bounding box.
I have this sample attached.
cage as polysurface.3dm (506 KB)