[vtkusers] Colored map and another image

[pax]

Hi,

I'm new to VTK and I have a problem with displaying more than one actor in
the same time. I created a map very similar to the map from 
http://www.vtk.org/Wiki/VTK/Examples/Cxx/Meshes/Color_a_mesh_by_height Color
a mesh by height  example, using Delaunay2D and LookupTable. I was trying to
create another actor and display an image as another layer with proper
opacity on my map, but to no avail. I also tried to add a cube or anything
else, but still all I get is my map and other things aren't visible. Am I
doing something wrong? Should I transform the map before displaying so that
other layers could be visible?

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