DMDACoor2d

Structure for holding 2d (x and y) coordinates when working with DMDA

Synopsis

.vb
DMDACoor2d **coors;
Vec      vcoors;
DM       cda;
DMGetCoordinates(da,&vcoors);
DMGetCoordinateDM(da,&cda);
DMDAVecGetArray(cda,vcoors,&coors);
DMDAGetCorners(cda,&mstart,&nstart,0,&m,&n,0)
for (i=mstart; i<mstart+m; i++) {
for (j=nstart; j<nstart+n; j++) {
x = coors[j][i].x;
y = coors[j][i].y;
......
}
}
DMDAVecRestoreArray(dac,vcoors,&coors);
.ve

See Also

DM Basics, DMDA, DMDACoor3d, DMDAVecRestoreArray(), DMDAVecGetArray(), DMGetCoordinateDM(), DMGetCoordinates()

Level

intermediate

Location

include/petscdmda.h

Examples

src/snes/tutorials/ex5.c
src/snes/tutorials/ex55.c
src/dm/tutorials/swarm_ex1.c
src/snes/tutorials/ex46.c
src/ksp/ksp/tutorials/ex70.c
src/ksp/ksp/tutorials/ex49.c
src/ksp/ksp/tutorials/ex43.c
src/snes/tutorials/ex55k.kokkos.cxx
src/dm/tutorials/ex3.c

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Index of all DMDA routines
Table of Contents for all manual pages
Index of all manual pages