<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman, new york, times, serif;font-size:12pt"><DIV>Please help me!</DIV>
<DIV>When I used vtkTubeFilter to increase the thickness of curves, I got following error message. </DIV>
<DIV> </DIV>
<DIV>ERROR: In .\vtkPolyLine.cxx, line 102<BR>vtkPolyLine (01D0C4C0): Coincident points in polyline...can't compute normals</DIV>
<DIV>Warning: In .\vtkTubeFilter.cxx, line 225<BR>vtkTubeFilter (01C80CA0): Could not generate normals for line. Skipping to next.</DIV>
<DIV> </DIV>
<DIV>Anyone know how to solve this problem?</DIV>
<DIV> </DIV>
<DIV>Thank you.</DIV>
<DIV>Lu</DIV></div><br>
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