<div class="gmail_quote">On Fri, Oct 1, 2010 at 7:46 PM, Ambar C <span dir="ltr"><<a href="mailto:ambarc@gmail.com">ambarc@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I understand the part about the Position and orientation being the<br>
fields that get changed by the trackball - so how would I go about<br>
incorporating those changes into the actual data?<br>
<div><div></div><div class="h5"></div></div></blockquote></div><div><br></div>You could use this:<br><div><a href="http://www.vtk.org/Wiki/VTK/Examples/Cxx/Filters/TransformPolyData">http://www.vtk.org/Wiki/VTK/Examples/Cxx/Filters/TransformPolyData</a></div>
<div><br></div><div>and do </div><div>transform->PostMultiply();</div><div>transform->Translate(actor->GetPosition())</div><meta http-equiv="content-type" content="text/html; charset=utf-8"><div>transform->Rotate(actor->GetOrientation())</div>
<div><br></div><div>Maybe someone else will chime in with a cleaner solution, but this should work.</div><div><br>David</div>