Fix support for quads in CDI reader
The reader was written for triangles and quads, but only used for triangles. This fix prevents a paraview crash when reading a grid with quads.
The floor function can be omitted, as this is integer division.
The reader was written for triangles and quads, but only used for triangles. This fix prevents a paraview crash when reading a grid with quads.
The floor function can be omitted, as this is integer division.