Polygon2Voxel

Convert a triangulated mesh into a voxel volume

Description

This function polygon2function will convert a Triangulated Mesh into a Voxel Volume which will contain the discretized mesh.

Discretization of a polygon is done by splitting the polygon in smaller polygons, until the longest edge is smaller than 0.5 voxel, then the voxel beneath the vertice coordinates is set to one.

The function is fast because the main function is implemented in c-code /mex file (takes seconds on a core 2 duo with function compiled by Microsoft Visual Studio 2008.).

Try the example.

Bugs, successes and other comments are welcome!

• MATLAB release: MATLAB 7.8 (R2009a)

[Siyi Deng]

very helpful. Good job.

[Óscar J. Rubio Martín]

Incredible performance! Very good

[Siyi Deng]

THis is indeed fantastic, however I would suggest to change the output Volume from datatype double to uint8 in c file and eventually to logical in m file; this will save lots of memory and make it faster, especially when volumeSize is large;

[Dirk-Jan Kroon]

*Siyi Deng
I have updated the code today with an new version which outputs a logical volume.

[Yuanming Suo]

Great tool. Just solve my need. Well documented.

[Rigo Trosendo]

Great Job, Exactly what I needed. Is you algorithm based on any publication(s)?
Thanks

[Dirk-Jan Kroon]

*Rigo Trosendo
Thanks you for your comment. The code is basic, thus not based on any publications.

[wall]

GREAT

[leo]

please check some kind of limitation.

I test a FV data,the data is from real CT images,so the range of object's x,y,z coordinate is about: 140:230 ,90:170, 725:820 , but in your code, I can not set the real range,only use [100 100 100], after test 'none','auto','center'.
only in 'auto', I can see the medical structure in the top left corner, but the structure is scaled down and original details can not be restored.

[Dirk-Jan Kroon]

*leo,
Only integer volume sizes are supported