<DIV>I looked through the code, but I don't understand how the picker can replace a callback function. I need some specific things to happen each time a point in the plane is clicked, and I don't see any event functionality in the picker, just record functionality...am i wrong?</DIV>
<DIV> </DIV>
<DIV> -Aaron<BR><BR><B><I>Xianjin Yang <Yang@AGIUSA.COM></I></B> wrote:</DIV>
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<P><FONT size=2>You do not need any callback command. Instead, you should</FONT> </P>
<P><FONT size=2> planeWidgetX->SetInteractor(iren);</FONT> <BR><FONT size=2> planeWidgetX->SetKeyPressActivationValue('x');</FONT> <BR><FONT size=2> planeWidgetX->SetPicker(picker); // vtkCellPicker</FONT> </P>
<P><FONT size=2>Check the complete C++ in this example:</FONT> <BR><FONT size=2>\VTK\Hybrid\Testing\Cxx\ImagePlaneWidget.cxx</FONT> </P><BR>
<P><FONT size=2>Yang</FONT> </P>
<P><FONT size=2>-----Original Message-----</FONT> <BR><FONT size=2>From: Aaron Cois [<A href="mailto:aaron_vtk@yahoo.com">mailto:aaron_vtk@yahoo.com</A>] </FONT><BR><FONT size=2>Sent: Tuesday, May 25, 2004 11:04 AM</FONT> <BR><FONT size=2>To: vtkusers@vtk.org</FONT> <BR><FONT size=2>Subject: [vtkusers] mouse interaction with vtkImagePlaneWidget</FONT> </P><BR>
<P><FONT size=2>I am attemmpting to get the coordinates of a mouse</FONT> <BR><FONT size=2>click on a vtkImagePlaneWidget. I believe (please</FONT> <BR><FONT size=2>correct me if i am wrong, I am not that experienced</FONT> <BR><FONT size=2>with vtk) that the best way to do this is to write a</FONT> <BR><FONT size=2>callback handler (deriving from vtkCommand), which i</FONT> <BR><FONT size=2>did, and to then add it as an observer to the</FONT> <BR><FONT size=2>vtkImagePlaneWidget. However, this seems to have no</FONT> <BR><FONT size=2>effect. My code basically looks like:</FONT> </P>
<P><FONT size=2>m_ImagePlane2D->AddObserver(vtkCommand::LeftButtonPressEvent,m_MouseCallbackHandler);</FONT> <BR><FONT size=2>m_ImagePlane2D->EnabledOn();</FONT> <BR><FONT size=2>m_ImagePlane2D->InteractionOn();</FONT> <BR><FONT size=2>m_ImagePlane2D->On();</FONT> </P>
<P><FONT size=2> Can anyone give me some help?</FONT> </P>
<P><FONT size=2>(Note: I have tested the callback function by adding</FONT> <BR><FONT size=2>an observer using it to the window interactor...it</FONT> <BR><FONT size=2>works fine, but naturally that only gives me mouse</FONT> <BR><FONT size=2>clicks outside of the image plane, not within)</FONT> </P>
<P><FONT size=2> -Aaron </FONT><BR><FONT size=2>__________________________________________________</FONT> <BR><FONT size=2>Do You Yahoo!?</FONT> <BR><FONT size=2>Tired of spam? Yahoo! Mail has the best spam protection around </FONT><BR><FONT size=2><A href="http://mail.yahoo.com/" target=_blank>http://mail.yahoo.com</A> </FONT></P></BLOCKQUOTE><p>
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