How do I change this gh file to create squares instead of voronoui. It should be simple.

Replies to This Discussion

Permalink Reply by Joseph Oster on February 8, 2017 at 11:53am

Without looking at your code, I have to say that "evenly sized squares on any surface" doesn't make sense.  What about surfaces that aren't rectangular?

Permalink Reply by Aiden Kashi on February 8, 2017 at 12:18pm

Im trying to get my shape wrapped in something like in this picture I found online. When I say "even" I mean like in this picture how the squares are the same size. 

Permalink Reply by David Rutten on February 8, 2017 at 12:57pm

Those can't be squares, because squares can only be stitched together into a zero-curvature surface. The shapes in your image will be trapezoids, or just completely asymmetric quadrilaterals.

Permalink Reply by Aiden Kashi on February 8, 2017 at 1:32pm

So how would I get these quadrilaterals to evenly cover my model? 

Permalink Reply by Brian Harms on February 8, 2017 at 6:56pm

What have you tried so far? From the other posts you made it sounds like you have gotten a lot of different suggestions.

You mentioned that you wanted the grid of "squares" to look normal from the top view, but in image you posted above that is not the case.

My suggestion was to project squares from above, see where they land, take the vertices of each projected square (which are now all curvy because they are on your curvy surface), and create a quadrilateral from them (use polyline component with close curve set to true). 

You could also just project a grid of points instead of the actual curves, which will save you a lot of processing time, and then construct the quads from those.

Here is a screenshot of the former

Also see the attached file. I chopped your surface in half (along its equator) because I'm not exactly sure what you are wanting to do with the "squares" on the bottom of this surface?

Attachments:

• quadsOnSurface.gh, 28 KB

Permalink Reply by Aiden Kashi on February 9, 2017 at 11:18am

Wow. Thanks for your help! What you got was very close. Image you took my shape and wrapped it tightly with an elastic gridded net that took the form of my shape. I understand that if all of the "squares" were exactly the same - they wouldn't be able to wrap around. They need some level of elasticity and I have no idea how to do that. 

Again thanks!

Permalink Reply by David Rutten on February 9, 2017 at 11:36am

Another approach to Brian's suggestion is to use geodesics across the underlying surface. Of course that requires you actually do have the surface. If that's not the case then ignore this.