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<DIV>Hi,</DIV>
<DIV><FONT
face=null></FONT> </DIV>
<DIV>I want find the x,y,z world coordinate of a screen x,y with a
specified zBuffer value(between 0 and 1). when I use vtkWorldPointPicker
as vtkCellPicker showed by the example "annotatePick.tcl", there is no
annotation in the screen.</DIV>
<DIV><FONT
face=null></FONT> <BR>I just want use vtk to realize <FONT
size=+0></FONT>the function of
"gluUnProject()" in OpenGL. But I don't know how to do it and how can I
use vtkWorldPointPicker to obtai<FONT
size=+0></FONT>n the world </DIV>
<DIV>coordinate.</DIV>
<DIV><FONT
face=null></FONT> </DIV>
<DIV>Hope you will respond. Thank you in advance.<FONT
size=+0></FONT></DIV>
<DIV><FONT
face=null></FONT> </DIV>
<DIV>cuckoo</DIV>
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