1: static char help[] = "Create and view a forest mesh\n\n";

  3: #include <petscdmforest.h>
  4: #include <petscoptions.h>

  8: int main(int argc, char **argv)
  9: {
 10:   DM             dm;
 11:   char           typeString[256] = {'\0'};
 12:   PetscViewer    viewer = NULL;
 13:   PetscBool      flg;

 16:   PetscInitialize(&argc, &argv, NULL, help);
 17:   DMCreate(PETSC_COMM_WORLD, &dm);
 18:   PetscStrncpy(typeString,DMFOREST,256);
 19:   PetscOptionsBegin(PETSC_COMM_WORLD,NULL,"DM Forest example options",NULL);
 20:   PetscOptionsString("-dm_type","The type of the dm",NULL,DMFOREST,typeString,sizeof(typeString),NULL);
 21:   PetscOptionsEnd();
 22:   DMSetType(dm,(DMType) typeString);
 23:   DMSetFromOptions(dm);
 24:   DMSetUp(dm);
 25:   PetscOptionsGetViewer(PETSC_COMM_WORLD,NULL,"-dm_view",&viewer,NULL,&flg);
 26:   if (flg) {
 27:     DMView(dm,viewer);
 28:   }
 29:   PetscViewerDestroy(&viewer);
 30:   DMDestroy(&dm);
 31:   PetscFinalize();
 32:   return 0;
 33: }