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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Thanks, David! I couldn’t get the vtkCellLocator to work but the vtkOBBTree worked beautifully.<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> David Gobbi [mailto:david.gobbi@gmail.com]
<br>
<b>Sent:</b> Thursday, March 19, 2015 11:22 AM<br>
<b>To:</b> Doug Hoppes<br>
<b>Cc:</b> vtkusers@vtk.org<br>
<b>Subject:</b> Re: [vtkusers] Line intersection with an actor<o:p></o:p></span></p>
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<p class="MsoNormal">The vtkCellLocator does this, but it operates on a vtkDataSet<o:p></o:p></p>
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<p class="MsoNormal">rather than on an actor: actor->GetMapper()->GetInput()<o:p></o:p></p>
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<p class="MsoNormal">The cell locator works in data coords rather than world coords<o:p></o:p></p>
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<p class="MsoNormal">(use the actor's matrix to do the coord conversion, if needed).<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">On Thu, Mar 19, 2015 at 9:03 AM, Doug Hoppes <<a href="mailto:dhoppes@mbfbioscience.com" target="_blank">dhoppes@mbfbioscience.com</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto">Hi all,<o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> <o:p></o:p></p>
<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"> I was wondering what the best way to do this. I have a vtkactor in my scene. In this case, I have a point(Point 1) inside of the vtkactor and a point (Point 2)
outside of the actor. Is there a class that will get me the intersection position on the surface of the actor if I draw a line from point 1 to point 2?
<o:p></o:p></p>
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<p class="MsoNormal" style="mso-margin-top-alt:auto;mso-margin-bottom-alt:auto"><span style="color:#888888">Doug<o:p></o:p></span></p>
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