<div class="gmail_quote">On Tue, Apr 17, 2012 at 5:14 PM, Wenlong <span dir="ltr"><<a href="mailto:scc.wwl@gmail.com">scc.wwl@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear all,<br>
<br>
I am trying to crop my 3D face model. For example, I have a 3D face model<br>
with 7710 points. But I don't need them all, I only need 5090 of them. So,<br>
how can I crop the oringinal 3D face model and get a smaller one?<br>
<br>
Many thanks in advance for your kindly help.<br>
<br>
Best wishes<br>
Wenlong<br></blockquote><div><br></div><div>It sounds like you want to either *decimate* a mesh:</div><div><a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/Decimation">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/Decimation</a></div>
<div><a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/QuadricDecimation">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/QuadricDecimation</a></div><div><a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/QuadricClustering">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/QuadricClustering</a></div>
<div><br></div><div>or *downsample* a point cloud:</div><a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/DownsamplePointCloud">http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/DownsamplePointCloud</a><br clear="all">
<br>David<br></div>