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</o:shapelayout></xml><![endif]--></head><body lang=PT link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I’m trying to visualize archaeological data using VTK. So far, I’m importing each object of the excavations plans to a polydata and render them on a renderwindow. Of course, one important aspect for the archaeologists is to have the information about the North of the scene. Therefore I have to represent a compass and I’ using vtkCompassRepresentation and vtkCompassWidget to represent and interact with a compass. But, what do I have to do to constantly update the compass position when I rotate the scene?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Many thanks!<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Paulo<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>