[vtkusers] expcos.cxx and expcos.tcl runtime differences

[Prabhu Ramachandran]

>>>>> "MN" == Michael Norton <mnorton at cisco.com> writes:

    MN> hi, I noticed on my Mac OS X install that the runtime of
    MN> expcos.cxx and expcos.tcl differ in the way the bessel
    MN> function is initially displayed.  The source in cxx looks
    MN> pretty straight forward with the tcl.

    MN> The question I guess is, how do I change the camera angle from
    MN> an overhead view of the function to one say off from the side?
    MN> How do I change the camera angle?

Well, look at Graphics/Testing/Cxx/expCos.cxx

The lines like:

  ren->GetActiveCamera()->Zoom(1.4);
  ren->GetActiveCamera()->Elevation(-55);
  ren->GetActiveCamera()->Azimuth(25);
  ren->ResetCameraClippingRange();

change the orientation.  Read the vtkCamera docs and try different
parameters to get what you want.

prabhu