DMDAGetLogicalCoordinate

Returns a the i,j,k logical coordinate for the closest mesh point to a x, y, z point in the coordinates of the DMDA

Synopsis

#include "petscdmda.h"   
PetscErrorCode DMDAGetLogicalCoordinate(DM da, PetscScalar x, PetscScalar y, PetscScalar z, PetscInt *II, PetscInt *JJ, PetscInt *KK, PetscScalar *X, PetscScalar *Y, PetscScalar *Z)

Collective

Input Parameters

• da - the DMDA

• x - the first physical coordinate

• y - the second physical coordinate

• z - the third physical coordinate

Output Parameters

• II - the first logical coordinate (-1 on processes that do not contain that point)

• JJ - the second logical coordinate (-1 on processes that do not contain that point)

• KK - the third logical coordinate (-1 on processes that do not contain that point)

• X - (optional) the first coordinate of the located grid point

• Y - (optional) the second coordinate of the located grid point

• Z - (optional) the third coordinate of the located grid point

Note

All processors that share the DMDA must call this with the same coordinate value

See Also

DMDA - Creating vectors for structured grids, DM, DMDA

Level

advanced

Location

src/dm/impls/da/dasub.c

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Index of all DMDA routines
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Index of all manual pages