1 static char help[] = "Evaluate the shape quality of a mesh\n\n"; 2 3 #include <petscdmplex.h> 4 5 typedef struct { 6 char filename[PETSC_MAX_PATH_LEN]; /* Import mesh from file */ 7 PetscBool report; /* Print a quality report */ 8 PetscReal condLimit; /* Condition number limit for cell output */ 9 } AppCtx; 10 11 PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options) 12 { 13 size_t len; 14 PetscErrorCode ierr; 15 16 PetscFunctionBegin; 17 options->filename[0] = '\0'; 18 options->report = PETSC_FALSE; 19 options->condLimit = PETSC_DETERMINE; 20 21 ierr = PetscOptionsBegin(comm, "", "Mesh Quality Evaluation Options", "DMPLEX");CHKERRQ(ierr); 22 ierr = PetscOptionsString("-filename", "The mesh file", "ex9.c", options->filename, options->filename, PETSC_MAX_PATH_LEN, NULL);CHKERRQ(ierr); 23 ierr = PetscOptionsBool("-report", "Output a mesh quality report", "ex9.c", options->report, &options->report, NULL);CHKERRQ(ierr); 24 ierr = PetscOptionsReal("-cond_limit", "Condition number limit for cell output", "ex9.c", options->condLimit, &options->condLimit, NULL);CHKERRQ(ierr); 25 ierr = PetscOptionsEnd();CHKERRQ(ierr); 26 27 ierr = PetscStrlen(options->filename, &len);CHKERRQ(ierr); 28 if (!len) SETERRQ(comm, PETSC_ERR_ARG_WRONG, "You must specify an input mesh using -filename"); 29 PetscFunctionReturn(0); 30 } 31 32 int main(int argc, char **argv) 33 { 34 DM dm; 35 AppCtx ctx; 36 PetscErrorCode ierr; 37 38 ierr = PetscInitialize(&argc, &argv, NULL,help);if (ierr) return ierr; 39 ierr = ProcessOptions(PETSC_COMM_WORLD, &ctx);CHKERRQ(ierr); 40 ierr = DMPlexCreateFromFile(PETSC_COMM_WORLD, ctx.filename, PETSC_TRUE, &dm);CHKERRQ(ierr); 41 ierr = DMPlexCheckCellShape(dm, ctx.report, ctx.condLimit);CHKERRQ(ierr); 42 ierr = DMDestroy(&dm);CHKERRQ(ierr); 43 ierr = PetscFinalize(); 44 return ierr; 45 } 46 47 /*TEST 48 49 test: 50 suffix: 0 51 requires: exodusii 52 nsize: {{1 2}} 53 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/blockcylinder-50.exo -report 54 55 test: 56 suffix: 1 57 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/square.msh -report 58 59 TEST*/ 60