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<DIV><FONT face="Bookman Old Style">Hi,</FONT></DIV>
<DIV><FONT face="Bookman Old Style">1.</FONT><FONT face="Bookman Old Style">I
suggest you use </FONT><A class=el
href="mk:@MSITStore:D:\MyVC\vtk-5.0.0\Docs\vtk5.0.chm::/classvtkMarchingCubes.html"><FONT
face="Bookman Old Style">vtkMarchingCubes</FONT></A><FONT
face="Bookman Old Style">, which is specialized to volume data.</FONT></DIV>
<DIV><FONT face="Bookman Old Style"></FONT> </DIV>
<DIV><A class=el
href="mk:@MSITStore:D:\MyVC\vtk-5.0.0\Docs\vtk5.0.chm::/classvtkMarchingCubes.html"><FONT
face="Bookman Old Style">vtkMarchingCubes</FONT></A><FONT
face="Bookman Old Style"> is a filter that takes as input a volume (e.g., 3D
structured point set) and generates on output one or more isosurfaces. One or
more contour values must be specified to generate the isosurfaces.
Alternatively, you can specify a min/max scalar range and the number of contours
to generate a series of evenly spaced contour values.</FONT></DIV>
<DIV><FONT face="Bookman Old Style"></FONT> </DIV>
<DIV><FONT face="Bookman Old Style">2.GetPoints() is the right method, but be
sure you have called MarchingFilter->Update() before. </FONT></DIV>
<DIV><FONT face="Bookman Old Style"></FONT> </DIV>
<DIV><FONT face="Bookman Old Style">I suggest you firstly render the
isosurface using vtk to ensure you get the right surface and then export
this surface.</FONT></DIV>
<DIV><FONT face="Bookman Old Style"></FONT> </DIV>
<DIV><FONT face="Bookman Old Style">Hope it help.</FONT></DIV>
<DIV><FONT face="Bookman Old Style"></FONT> </DIV>
<DIV><FONT face="Bookman Old Style">Yixun Liu</FONT></DIV>
<DIV><FONT face="Bookman Old Style"></FONT> </DIV>
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