petsc-3.14.6 2021-03-30
DMMoabPToRMapping
Compute the mapping from the physical coordinate system for a given element to the canonical reference element. In addition to finding the inverse mapping evaluation through Newton iteration, the basis function at the parametric point is also evaluated optionally.
Synopsis
#include "petscdt.h"
#include "petscdmmoab.h"
PetscErrorCode DMMoabPToRMapping(const PetscInt dim, const PetscInt nverts, const PetscReal *coordinates, const PetscReal* xphy, PetscReal* natparam, PetscReal* phi)
Input Parameter
| PetscInt dim | - the element dimension (1=EDGE, 2=QUAD/TRI, 3=HEX/TET)
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| PetscInt nverts | - the number of vertices in the physical element
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| PetscReal coordinates | - the coordinates of vertices in the physical element
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| PetscReal[3] xphy | - the coordinates of physical point for which natural coordinates (in reference frame) are sought
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Output Parameter
| PetscReal[3] natparam | - the natural coordinates (in reference frame) corresponding to xphy
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| PetscReal[nverts] phi | - the basis functions evaluated at the natural coordinates (natparam)
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Level
advanced
Location
src/dm/impls/moab/dmmbfem.cxx
Index of all DMMOAB routines
Table of Contents for all manual pages
Index of all manual pages