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<DIV><FONT face=Arial size=2>Hi, I am trying to orientate a 3D model
so that a particular vector is aligned with the z-axis in world
coordinates.</FONT></DIV>
<DIV><FONT face=Arial size=2>I have tried:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>vtkSTLReader model</FONT></DIV>
<DIV><FONT face=Arial size=2> model
SetFileName "C:/myFile"</FONT></DIV>
<DIV><FONT face=Arial size=2>...</FONT></DIV>
<DIV><FONT face=Arial size=2>I am applying an instance of vtkCutter to this
model.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>vtkCutter cutter1</FONT></DIV>
<DIV><FONT face=Arial size=2>cutter1 SetInput [model GetOutput]
</FONT></DIV>
<DIV><FONT face=Arial size=2>...</FONT></DIV>
<DIV><FONT face=Arial size=2>then when I transform the model using
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2> modelActor
RotateWXYZ angle1 0 0 1</FONT></DIV>
<DIV><FONT face=Arial size=2> modelActor
RotateWXYZ angle2 0 1 0</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>the model is transforming correctly but cutter1 is
not cutting the model anymore.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>When I use a transform:</FONT></DIV>
<DIV><FONT face=Arial size=2>vtkTransform modelTransform</FONT></DIV>
<DIV><FONT face=Arial size=2> </FONT></DIV>
<DIV><FONT face=Arial size=2>vtkTransformPolyDataFilter
modTransform<BR> modTransform SetTransform
modelTransform<BR> modTransform SetInput [model
GetOutput]</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>and then</FONT></DIV>
<DIV><FONT face=Arial size=2>cutter1 SetInput [modelTransform
GetOutput]</FONT></DIV>
<DIV><FONT face=Arial size=2>...</FONT></DIV>
<DIV><FONT face=Arial size=2>and then transform the model using</FONT></DIV>
<DIV><FONT face=Arial size=2>
modelTransform RotateWXYZ angle1 0 0 1</FONT></DIV>
<DIV><FONT face=Arial size=2>
modelTransform RotateWXYZ angle2 0 1 0</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>its producing the wrong output - i think it might
be using the model coordinates instead of the world ones.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Any ideas on how to set the cutter to work on the
(correctly) transformed model??</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Clare</FONT></DIV></FONT></DIV></BODY></HTML>