Support export manifold mesh about adtree HOT 2 CLOSED

In the current implementation, each branch is separately extracted from the fitted spline curves, and thus branches typically intersect at the joints. Seamlessly stitching the branches in principle is possible by computing the intersections of two generalized cylinders. But this requires to handle a few special cases, which is quite tedious. This is apparently less relevant to our research, so we leave this to the users of AdTree as postprocessing (and thus we may not implement it in this software prototype). However, I can suggest a workaround:

• step 1: obtain closed surface meshes for each branch, by simply filling the holes at the two end points of the branch (In the result of AdTree, each branch is a connected component. So you need to loop over all branches).
• step 2: compute the union of all the comments. This will result in a closed and manifold mesh representation of the tree branch structure, from which the volume could be easily computed.

Hope this helps.

from adtree.

Thanks a lot for your kindly reply, I will try this postprocessing as you suggested!

from adtree.