Post : visualizing/manipulating fields defined on mesh centers
CFD solvers often provide a solution defined on mesh centers.
For visualisation of structured grids, Cassiopee provides the
function that takes into account the matching connectivity if it is
defined in the computational tree:
A center field solution visualized on nodes without matching boundary conditions (left) and with (right).
Similarily, gradients and gradient based computations of variables
using P.gradP.computeVariables or P.computeExtraVariables use matching connectivity if defined:
Gradient's norm of density visualized on nodes without matching boundary conditions (left) and with (right).