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5.0 | 7 ratings Rate this file 35 Downloads (last 30 days) File Size: 16.4 KB File ID: #24086 Version: 1.7
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Dirk-Jan Kroon (view profile)


12 May 2009 (Updated )

Convert a triangulated mesh into a voxel volume

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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)
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Comments and Ratings (14)
27 Oct 2016 Alexandros Iliopoulos

16 May 2012 Vincent Jaouen

28 Apr 2012 Vincent Jaouen

As Stefan Roth pointed out, there is a problem on UNIX platforms. I had the same problem when trying to compile under ubuntu 11.10. Adding the macros indeed helps.

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13 Mar 2012 Stefan Roth

Great job thanks!

On Mac OS compyling the mex file leads to undefined symbol errors.

Adding the macros helps:

#define min(X,Y) ((X) < (Y) ? (X) : (Y))
#define max(X,Y) ((X) > (Y) ? (X) : (Y))

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19 Dec 2011 Dirk-Jan Kroon

Dirk-Jan Kroon (view profile)

Only integer volume sizes are supported

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15 Aug 2011 leo

leo (view profile)

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.

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25 Mar 2011 wall

wall (view profile)


10 Feb 2011 Dirk-Jan Kroon

Dirk-Jan Kroon (view profile)

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

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09 Feb 2011 Rigo Trosendo

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

12 Nov 2010 Yuanming Suo

Great tool. Just solve my need. Well documented.

27 May 2010 Dirk-Jan Kroon

Dirk-Jan Kroon (view profile)

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

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06 May 2010 Siyi Deng

Siyi Deng (view profile)

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;

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18 Aug 2009 Óscar J. Rubio Martín

Incredible performance! Very good

13 Aug 2009 Siyi Deng

Siyi Deng (view profile)

very helpful. Good job.

25 May 2009 1.1

Added center and resize options

01 Oct 2009 1.2

Linux Ubuntu Tested

12 Feb 2010 1.3

Small Bug fixed, for the case if all vertices are outside the volume. Only not draw the face if they are outside at the same side of the volume.

27 May 2010 1.4

Changed output to Logicals instead of Double datatype

12 Nov 2010 1.5

Now first index volume is 1,1,1 instead of 0,0,0, and YXZ dimensions as in Matlab convention (Thanks Yuanming SUO).

19 Dec 2011 1.6

Added boundary options

26 Jun 2012 1.7

Function now also working without compiling c-code

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