Trouble creating isosurface from unstructuredGrid of Tetras
Newbie here, having trouble creating an isosurface on a unstructredGrid of tetras.
I'm using Python 3.6 with VTK V7.1
I'm pretty sure my unstructuredGrid is good - I've attached the .vtk file - I can see the points, cells and scalar data associated with the points.
I've cobbled together the code below from looking at examples on the web
The code runs, the render window is displayed and there are no errors, but nothing is displayed
I'm pretty sure that things are going wring in the vtkContourFilter. When I look at the contents of 'contour' in the debugger after setting the data and the isoSurfaceValue I'm not seeing any data at all...
Any help will be gratefully accepted!!!!!
#Builds the unstructuredGrid
tetMesh = ReadNastran.buildMesh()