CGAL users discussion list

[vertber <>]

Hi, I'm kinda new with CGAL and i have a question for you !  (And sorry for
my bad english,it's not my native language so i'll try my best. )

I have an .off file (a 3D Indoor Room) which is read and stocked into a
Surface_Mesh Object (couldn't use a Polyhedron cause i've got some error,
probably because it's not a manifold polyhedron).
On the other hand I have a pyramidal Polyhedron (which symbolize a camera's
field of view) and I would like to manage to cut off all the surface mesh
which is not in this pyramidal Polyhedron.
With the help of this code
(https://www.codefull.org/2016/03/cgal-point-in-polyhedron-algorithm/) I
managed to mark each vertices of my surface_mesh which is not inside the
polyhedron as removed, and then called the garbage collection in order to
remove them completely.
But Surface_Mesh provide only Low-Level Removal Functions, so my
Surface_mesh result is not valid anymore and I can't write it into a new off
file. 

I can also just keep the Points of my surface mesh which are inside the
pyramidal Polyhedron and stock them other place, but by doing that the
result is a Point cloud whereas I would like to obtain a Mesh.

So my question is: Does it exist a way to keep the part of a surface-mesh
which is inside a Polyhedron ?

Thanks for reading !



--
View this message in context: 
http://cgal-discuss.949826.n4.nabble.com/Only-keep-the-part-of-a-surface-mesh-which-is-inside-a-Polyhedron-tp4661848.html
Sent from the cgal-discuss mailing list archive at Nabble.com.