combining points and gemotetry into a single grid

I have been able to import a pointstable (data values) into paraview and a techplot file (geometry) into paraview so two nodes in my pipeline. I am interested in merging the two together so that I can create contours onto the geometry?
I would like to do this using python and the paraview.simple module.
I am not really upto speed at all on this vtk stuff so any suggestions or rabbit holes are appreciated.