Quadish Meshes


#1

I know Rhino will always use triangles for trimmed and joined edges of a polysrf. I also know Rhino starts with initial grid quads on a srf. My question is, how can I keep those initial grid quads and only have triangles at the trimmed joints?

I have read all the meshing FAQs and I’m still getting triangles everywhere, like in the middle of a curved srf and at the seam of two untrimmed srfs.


#2

Hi Eric,

one thing you can try is to turn OFF the refine option, but it has been always the case that in areas near trims there must be a few triangulated faces. Only if you extract the mesh, you might get rid of more triangles by using the command _QuadrangulateMesh with the option values for Planarity=60 and Rectangularity=1000. These are the maximum values.

c.