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<TITLE>Still bug in Mesh Filters ?</TITLE>
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<P DIR=LTR><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">Hello</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I'm working on a ITK project using the ITKSimplexMesh3DFilter and </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">itkSimplexMeshAdaptTopologyFilter. </FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">I'm using the latest versions of itk (</FONT></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">v1.26 and 1.19,</FONT></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">cvs archive) because I read in the ITK bug-tracker database there were bugs in these filters (bug 0009554)</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Maybe there are still bugs in these filters</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Inspecting the code (itkSimplexMesh3DFilter::ComputeOutput), I read the following</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="nl"><I></I></SPAN><I><SPAN LANG="en-us"><FONT FACE="Calibri">::ComputeOutput() </FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri">{</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri"> OutputMeshType * output = this->GetOutput();</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri"> this->CopyInputMeshToOutputMeshPoints();</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri"> this->CopyInputMeshToOutputMeshPointData();</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri"> this->CopyInputMeshToOutputMeshCells();</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri"> this->CopyInputMeshToOutputMeshCellData();</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri"> output->SetGeometryData(this->m_Data);</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri"> output->SetLastCellId( this->GetInput(0)->GetLastCellId() );</FONT></SPAN></I></P>
<P DIR=LTR><I><SPAN LANG="en-us"><FONT FACE="Calibri">}</FONT></SPAN></I></P>
<P DIR=LTR><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">My Questions about these are</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">1) </FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">Why are the Cell links not copied, there is a routine </FONT></SPAN></P>
<UL DIR=LTR><UL DIR=LTR>
<P DIR=LTR><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">CopyInputMeshtoOutpoutMeshCellLinks</FONT></SPAN></P>
</UL></UL>
<P DIR=LTR><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">2) </FONT></SPAN><SPAN LANG="en-us"></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"> <FONT FACE="Calibri">The pointer to the GeometryData is copied, not the content. Why not the content, now </FONT></SPAN></P>
<UL DIR=LTR><UL DIR=LTR>
<P DIR=LTR><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">it's possible to delete the original data (when reference count of the input data becomes 0</FONT></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri">,</FONT></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"><FONT FACE="Calibri"> it's impossible to access these data in a next stage of a program</FONT></SPAN></P>
</UL></UL>
<P DIR=LTR><SPAN LANG="nl"></SPAN><SPAN LANG="nl"></SPAN><SPAN LANG="en-us"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Kind regards</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Jan Menssen</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-us"><FONT FACE="Calibri">Clinical Physics Lab, Dept.</FONT></SPAN><SPAN LANG="nl"> <FONT FACE="Calibri">Pediatrics</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="nl"><FONT FACE="Calibri">Radboud University Nijmegen</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="nl"><FONT FACE="Calibri">j.menssen AT cukz.umcn.nl</FONT></SPAN><SPAN LANG="nl"></SPAN></P>
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