Brep AreaMassProperties.Compute error

Grasshopper Developer
1

I end up with a bunch of planar breps after boolean splitting a brep with some cutter curves.
My aim is to order the result of Brep.Split() method as per the X co-ordinates of centroid of each brep in a specific plane.
There are a couple of planar breps (surfaces) where I consistently failed to calculate the AreaMassProperties which is what I am using to get the centroid.
If I extract the boundary curves of these two planar breps and do the same process then AreaMassProperties succeeds.

image
image2383×1595 300 KB

Wondering if anyone can tell me whats wrong with these planar breps exactly as I couldnt find anything.
Thanks!

BrepTest.3dm (68.4 KB)
BrepTest.gh (26.0 KB)

2

Hi @srujan.v16,

If you run Rhino’s AreaCentroid command on your two Breps, you’ll see that it fails. Something is borked with the trims.

Try this:

  1. Run the DupBorder command on each of the two Breps.
  2. Run the UntrimAll command on each of the two Breps.
  3. Run the Trim command and re-trim the Breps using the border curve as a cutter.

BrepTest.zip (38.9 KB)

– Dale

3

Thanks for getting back @dale . Cheers