Convex Hull is concave.

I saw that there was a bug in the Convex Hull component in earlier releases, but it appears there is still a problem (see image). I think I should wait until David returns to post this, but I'm not sure when that is.

Replies to This Discussion

Permalink Reply by to] on February 4, 2010 at 2:00am

hi chris
i rebuild your setup but do not had any errors.
may you can send me your point coordinates to test it with the same setup?

Permalink Reply by Chris Wilkins on February 4, 2010 at 3:49am

Yes. I'm on Rhino V4,SR4 and Grasshopper V0.6.0059. I saved everything and reopened just to make sure something hadn't gone awry, but still same result.

I did see a post from David about this component, and that we could download just the GHA file for triangulation to fix how it was always broken, but I figured the 0059 release came after that.

Here's both files:

Attachments:

ConvexHullBSpline.3dm, 48 KB
ConvexHullBSpline.ghx, 298 KB

Permalink Reply by to] on February 4, 2010 at 4:06am

hi chris

re-reference the points and everything is fine
so i have no fault with that component
Rhino V4 SR7 and Rhino V5 64bit last build

Permalink Reply by Chris Wilkins on February 4, 2010 at 4:29am

I'm getting the problem based on the ordering of the points. If I re-reference the points by dragging left to right in one action, without regards to order, then I get good result: