<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;"><DIV><BR>Yes I did </DIV>
<DIV>But my original surface is just a surface without thickness</DIV>
<DIV>but the result i got has a thickness</DIV>
<DIV>that mean the surface of result have 1mm offset from my original surface</DIV>
<DIV>that will cause inaccuracy </DIV>
<DIV>so i want to shrink that result to compensate this 1mm</DIV>
<DIV>I know for 2Dimage i can use like erosion</DIV>
<DIV>but to the polyData how can i reduce the thickness<BR>--- <B>09年6月29日，周一, David Doria <I><daviddoria@gmail.com></I></B> 写道：<BR></DIV>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid"><BR>发件人: David Doria <daviddoria@gmail.com><BR>主题: Re: [vtkusers] create the mesh for a surface<BR>收件人: <BR>抄送: vtkusers@vtk.org<BR>日期: 2009年6月29日,周一,下午10:24<BR><BR>
<DIV id=yiv50618294>I think you just need to run the result of the splat through vtkContourFilter.<BR><BR>I just made this demo - see if it does what you need:<BR><A href="http://www.vtk.org/Wiki/Create_a_surface_from_Unorganized_Points_%28Gaussian_Splat%29" target=_blank rel=nofollow>http://www.vtk.org/Wiki/Create_a_surface_from_Unorganized_Points_%28Gaussian_Splat%29</A><BR><BR clear=all>Thanks,<BR><BR>David<BR><BR><BR>
<DIV class=gmail_quote>On Mon, Jun 29, 2009 at 9:58 AM, <SPAN dir=ltr><<A href="http://cn.mc151.mail.yahoo.com/mc/compose?to=phoenix.sjtu@yahoo.com.cn" target=_blank rel=nofollow ymailto="mailto:phoenix.sjtu@yahoo.com.cn">phoenix.sjtu@yahoo.com.cn</A>></SPAN> wrote:<BR>
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<DIV>I want to creat a mesh form the points cloud on the surface</DIV>
<DIV>but Delaunary3D and surface reconstruction do not work</DIV>
<DIV> </DIV>
<DIV>So Finally i have to use the gaussian splatting</DIV>
<DIV>it seem correct</DIV>
<DIV>but what i got it's not a mesh</DIV>
<DIV>It's a a surface with thickness</DIV>
<DIV>So does some one know how to shrink this thickness</DIV>
<DIV> </DIV>
<DIV>It's a surface with thickness in polyData</DIV>
<DIV>I tried shrinkfilter it just shrink the size of the triangles, it doesn't work</DIV>
<DIV>Thank you very much
<DIV>
<DIV></DIV>
<DIV class=h5><BR><BR>--- <B>09年6月24日，周三, David Doria <I><<A href="http://cn.mc151.mail.yahoo.com/mc/compose?to=daviddoria@gmail.com" target=_blank rel=nofollow ymailto="mailto:daviddoria@gmail.com">daviddoria@gmail.com</A>></I></B> 写道：<BR></DIV></DIV></DIV>
<DIV>
<DIV></DIV>
<DIV class=h5>
<BLOCKQUOTE style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid"><BR>发件人: David Doria <<A href="http://cn.mc151.mail.yahoo.com/mc/compose?to=daviddoria@gmail.com" target=_blank rel=nofollow ymailto="mailto:daviddoria@gmail.com">daviddoria@gmail.com</A>><BR>主题: Re: [vtkusers] create the mesh for a surface<BR>收件人: <BR>抄送: <A href="http://cn.mc151.mail.yahoo.com/mc/compose?to=vtkusers@vtk.org" target=_blank rel=nofollow ymailto="mailto:vtkusers@vtk.org">vtkusers@vtk.org</A><BR>日期: 2009年6月24日,周三,下午11:18<BR><BR>
<DIV>
<DIV class=gmail_quote>On Wed, Jun 24, 2009 at 10:45 AM, $B2HIL(B $BNB(B <SPAN dir=ltr><<A href="http://cn.mc151.mail.yahoo.com/mc/compose?to=phoenix.sjtu@yahoo.com.cn" target=_blank rel=nofollow>phoenix.sjtu@yahoo.com.cn</A>></SPAN> wrote:<BR>
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<DIV>Hi everyone</DIV>
<DIV>this is the first time i use this mail list</DIV>
<DIV>I hope it work</DIV>
<DIV>please reply me thank you very much</DIV>
<DIV> </DIV>
<DIV>I have a point cloud in 3D scanned from a surface of an object</DIV>
<DIV>I want to create the mesh(triangulization) for this surface</DIV>
<DIV> </DIV>
<DIV>I tried vtkSurfaceReconstructionFliter, but the output is not a mesh</DIV>
<DIV> </DIV>
<DIV>I tried vtkDeluanay2D but it project my point to a 2D plan</DIV>
<DIV>and my points is on a complex surface(for example a flower) </DIV>
<DIV>i cannot find the project function</DIV>
<DIV> </DIV>
<DIV>i tried vtkDeluanay3D it will create the mesh in side the object</DIV>
<DIV>I set alpha = 0.2 it will remove most the edge inside but it also remove the edge on my surface</DIV>
<DIV>Someone has some good idea?</DIV>
<DIV>I thing it is problem very commun create a mesh for a surface </DIV>
<DIV>I see some CAD software do it perfectly i know there must be a solution</DIV>
<DIV> </DIV>
<DIV>Thank you very much for you attantion</DIV>
<DIV>LIANG Jiabin</DIV></TD></TR></TBODY></TABLE><BR></DIV></BLOCKQUOTE></TD></TR></TBODY></TABLE></BLOCKQUOTE></DIV><BR>Liang,<BR><BR>The list received your question correctly, welcome.<BR><BR>Is your data from a single lidar scan (where it is all acquired from a single viewpoint)? Or do you have points on the full 3d object (ie. front and back and top and bottom, etc)?<BR><BR clear=all>Thanks,<BR><BR>David<BR></DIV><BR>-----下面为附件内容-----<BR><BR>
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