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<DIV><FONT face=Arial size=2>Actually i want to be able to pick some actors
(polygons) that i am rendering with the brain volume so that i
can calculate and display the surface area of the picked
actor.</FONT></DIV>
<DIV><FONT face=Arial size=2>In the beginning i asked about finding the mouse
position but this is not needed since i found out about the pick functions of
VTK (i'm a newbie). Hope the links you gave me will help</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks, Polys</FONT></DIV>
<DIV><BR></DIV>
<DIV style="FONT: 10pt Tahoma">
<DIV style="BACKGROUND: #f5f5f5">
<DIV style="font-color: black"><B>From:</B> <A title=julian.ibarz@gmail.com
href="mailto:julian.ibarz@gmail.com">Julian Ibarz</A> </DIV>
<DIV><B>Sent:</B> Thursday, May 08, 2008 4:13 PM</DIV>
<DIV><B>To:</B> <A title=polys_poly@hotmail.com
href="mailto:polys_poly@hotmail.com">polys_poly@hotmail.com</A> ; <A
title=vtkusers@vtk.org href="mailto:vtkusers@vtk.org">vtkusers@vtk.org</A>
</DIV>
<DIV><B>Subject:</B> Re: [vtkusers] Ray interesection with volume - finding the
mouse position</DIV></DIV></DIV>
<DIV><BR></DIV>I don't know what you want exactly but if you want to find the
points of the volume or the actors picked by the mouse you have in the VTK
nightly version :<BR><BR><A
href="http://www.vtk.org/doc/nightly/html/classvtkPointPicker.html">http://www.vtk.org/doc/nightly/html/classvtkPointPicker.html</A><BR><A
href="http://www.vtk.org/doc/nightly/html/classvtkPropPicker.html">http://www.vtk.org/doc/nightly/html/classvtkPropPicker.html</A><BR><BR>To
get the mouse position :<BR><BR><A
href="http://www.vtk.org/doc/nightly/html/classvtkRenderWindowInteractor.html">http://www.vtk.org/doc/nightly/html/classvtkRenderWindowInteractor.html</A><BR><BR>You
are working with what programming language ? C++ ? Java ? other ? To get the
mouse position it's change with the language. For example in java you create a
vtkCanvas to draw the rendering and override the methode
MouseMoveEvent(MouseEvent e) to get the new position of the mouse when it moves
and get the position with e->x and e->y...<BR><BR>This answers your
question ?<BR><BR>
<DIV class=gmail_quote>2008/5/8 <<A
href="mailto:polys_poly@hotmail.com">polys_poly@hotmail.com</A>>:<BR>
<BLOCKQUOTE class=gmail_quote
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<DIV>
<DIV><FONT face=Arial size=2>Hello,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Currently i am creating a volume of a DICOM
Dataset. The interactor i am using is <FONT
size=2>vtkInteractorStyleTrackballCamera. </FONT></FONT></DIV>
<DIV><FONT face=Arial size=2><FONT size=2>What i want to do
is finding the mouse pointer location on the rendering window, and
then finding the ray that connects the position of the camera with the mouse
position so i can find the points of the volume or the actors that this ray
intersects.</FONT></FONT></DIV>
<DIV><FONT face=Arial size=2><FONT size=2></FONT></FONT> </DIV>
<DIV><FONT face=Arial size=2><FONT size=2>I would appreciate any help on this
subject.</FONT></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial
size=2>Polys</FONT></DIV></DIV></DIV><BR>_______________________________________________<BR>This
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clear=all><BR>-- <BR>Julian Ibarz </BODY></HTML>