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--></style></head><body><div data-externalstyle="false" dir="ltr" style="font-family:Calibri,'Segoe UI',Meiryo,'Microsoft YaHei UI','Microsoft JhengHei UI','Malgun Gothic','Khmer UI','Nirmala UI',Tunga,'Lao UI',Ebrima,sans-serif;font-size:12pt;"><div>> I want to move an actor. When i use the function setPosition of the actor i<br>> see that the coordinates are actor coords.<br>> Is there any other function/class/way to move an actor in the world<br>> coordinates?<br></div><div>Use SetUserTransform with a vtkTransform object that does a translation transformation.</div><div> </div><div>Some examples:</div><div><a title="http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/TransformOrderDemo" href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/TransformOrderDemo" target="_parent">http://www.vtk.org/Wiki/VTK/Examples/Cxx/PolyData/TransformOrderDemo</a></div><div> </div><div> </div><div>HTH,</div><div>David C.</div><div> </div></div></body></html>