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Thread Subject:
RE-triangulation

Subject: RE-triangulation

From: sivabalan N

Date: 1 May, 2010 13:37:05

Message: 1 of 2

Hello Friends my name is SIVA.
step 1:
I have a point clouds(i.e x,y,z points of the surface)
Step 2:
from that i would like to generate STL (stereo lithography file ) by Delaunay Triangulation.
Step 3:
I need to find unit vector normal for each triangle in a surface.
Step 4:
I need to find
     i. interior angle of each triangle
     ii.angle between unit normal vector of all triangles. (i.e angle unit normal between the adjutant triangles )
Step 5:
to Delete the group of triangles in the delaunay triangulated surface.
Step 6:
I need to Re-triangulate the blank region.(without creating new points or extra points)


Can any one PLEASE HELP TO Achieve these step...
im ready spend money for geeting MATLAB coding..
Friends please help me....
My E-mail id: vigisiva@gmail.com
 ***********************************************************

Subject: RE-triangulation

From: Luigi Giaccari

Date: 9 May, 2010 05:49:03

Message: 2 of 2

"sivabalan N" <nshivabalan@gmail.com> wrote in message <hrhaq1$iis$1@fred.mathworks.com>...
> Hello Friends my name is SIVA.
> step 1:
> I have a point clouds(i.e x,y,z points of the surface)
> Step 2:
> from that i would like to generate STL (stereo lithography file ) by Delaunay Triangulation.
> Step 3:
> I need to find unit vector normal for each triangle in a surface.
> Step 4:
> I need to find
> i. interior angle of each triangle
> ii.angle between unit normal vector of all triangles. (i.e angle unit normal between the adjutant triangles )
> Step 5:
> to Delete the group of triangles in the delaunay triangulated surface.
> Step 6:
> I need to Re-triangulate the blank region.(without creating new points or extra points)
>
>
> Can any one PLEASE HELP TO Achieve these step...
> im ready spend money for geeting MATLAB coding..
> Friends please help me....
> My E-mail id: vigisiva@gmail.com
> ***********************************************************

Start turning the point cloud into a surface with one of those:

http://www.mathworks.com/matlabcentral/newsreader/create_message?reply_id=711429

http://www.advancedmcode.org/how-to-plot-a-coloured-surface-from-3d-scatter.html

http://www.advancedmcode.org/surface-recostruction-from-scattered-points-cloud-mycrustopen.html

http://www.advancedmcode.org/surface-recostruction-from-scattered-points-cloud-mycrust-robust.html



http://www.advancedmcode.org

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