Surface mesh from point data or polynomial
Tom Fournier
I would like to create a 2D mesh of a 3D surface, is this possible
with iso2mesh? It seems like all of the tools are here, but it is not
clear to me how to specify meshing only on the surface and not in some
3-D volume.
I have a surface that is described with a polynomial or a set of
points and triangle edges (a preliminary mesh). I would like to use a
program like iso2mesh because I would like to adaptively refine the
mesh size distribution as a function along the surface.
Thanks for any help,
Tom
Qianqian Fang
hi Tom
Did you want to produce a triangular surface mesh
from a 3D point cloud? or you already had a triangular
surface and wanted to refine the mesh?
Unfortunately, neither function exists in iso2mesh
at this point. For surface reconstruction from a 3D point
cloud, you may consider CGAL APIs [1] or MeshLab [2].
For surface refinement, you may consider tetgen [3].
You can use savesurfpoly.m or saveoff.m in iso2mesh
to export your surface mesh to interface with tetgen.
In the future, I have plans to incorporate these functions
into iso2mesh.
Qianqian
[1]
http://www.cgal.org/Manual/latest/doc_html/cgal_manual/Surface_reconstruction_points_3/Chapter_main.html#Subsection_45.3.2
[2]
http://lcni.uoregon.edu/~mark/Projects/Brain_casting/Point_cloud_to_mesh.html
[3] http://tetgen.berlios.de/features.html#F7