[vtkusers] plotting functions and surfaces again with vtk

[Prabhu Ramachandran]

>>>>> "KAS" == kemal Asad-Syed <kasadsyed at hotmail.com> writes:

    KAS> i am sorry to ask this question again but because of some
    KAS> technical issues i lost the sample c or c++ code to plot
    KAS> function such as y = Sin(x) and surfaces z = f(x,y), i am
    KAS> trying to use the Vtk.  thanks Kemal

I'm not sure what the best way to plot a one dimensional curve in VTK
is.  However plotting z = F(x, y) should be a piece of cake if you use
a vtkStructuredPoints object to represent the x-y plane, and at each
of its points provide values for z and store these values as the
scalar attributes of the plane.  Then pass the output of this through
vtkWarpScalar and then visualize the surface.  expCos.cxx provides a
nice but fairly complex example from a newbies perspective:

 VTK/Graphics/Testing/Cxx/expCos.cxx

cheers,
prabhu