Trapezoidal Scale / Map Curve from Rectangle to Trapezoid

[martinsiegrist]

I think I would use @DanielPiker MeshCageMorph2 to do this.

Reference and target mesh need to have identical topology. You can manipulate the mesh by dragging vertices or eddges in Rhino using the gumball or some automated approach in Grasshopper. You probably want to rebuild the resulting curve…

trapezoid_morph.gh (7.6 KB)

Check this topic here:

Cage edit command that can adapt to any form automatically

Here’s a fixed version that should now work also for cases when points lie exactly on faces/edges/vertices of the cage MeshCageMorpher.gha (11.5 KB)