Problem with projecting a grid onto a surface

I have a plane gridsystem where the topology of the grid can be varied. I want to

project the grid onto a curved surface i have created using kangaroo. I have managed

to do this but the projections seems to be deformed. I attached two pictures showing the structure. The green lines indicates the projected grid and the red lines indicate the base grid.

Does any one know why it is projected like this and how to fix it? any help is greatly appreciated.

I attached a gh file. The boolean toggle at the kangaroo component have to be turned off and on to generate the surface.

planeview:

Perspective:

Attachments:

topo_grasshopper_forum.gh, 39 KB

Replies to This Discussion

Permalink Reply by Hyungsoo Kim on March 13, 2015 at 5:32am

"Map to surface" is a quite different method from "project".

Because your Kangaroo result has uneven UV Data, so your mapped grid also unevenly generated.

You can rebuild the surface and adjust the UV grid more evenly, but I can't assure you the final result will be the same as "project".

Why don't you use "project"?

Permalink Reply by peter fotiadis on March 13, 2015 at 5:40am

Indeed - see this that "explains" the issue (kinda, he he)

Attachments:

topo_grasshopper_forum_V2.gh, 67 KB

Permalink Reply by Lasse Rahbek on March 14, 2015 at 6:34am

Thanks for the help, you got my on the right path. I wanted to project the grid but by projecting the point correctly i could use the grid configuration I used before by using the topologizer component :)