1 static const char help[] = "Test of CAD functionality"; 2 3 #include <petscdmplex.h> 4 5 /* TODO 6 - Fix IGES 7 - Test tessellation using -dm_plex_egads_with_tess 8 */ 9 10 typedef struct { 11 char filename[PETSC_MAX_PATH_LEN]; 12 PetscBool volumeMesh; 13 } AppCtx; 14 15 static PetscErrorCode ProcessOptions(MPI_Comm comm, AppCtx *options) 16 { 17 PetscErrorCode ierr; 18 19 PetscFunctionBeginUser; 20 options->filename[0] = '\0'; 21 options->volumeMesh = PETSC_TRUE; 22 23 ierr = PetscOptionsBegin(comm, "", "EGADSPlex Problem Options", "EGADSLite");PetscCall(ierr); 24 PetscCall(PetscOptionsString("-filename", "The CAD file", "ex37.c", options->filename, options->filename, sizeof(options->filename), NULL)); 25 PetscCall(PetscOptionsBool("-volume_mesh", "Create a volume mesh", "ex37.c", options->volumeMesh, &options->volumeMesh, NULL)); 26 ierr = PetscOptionsEnd();PetscCall(ierr); 27 PetscFunctionReturn(0); 28 } 29 30 static PetscErrorCode ComputeVolume(DM dm) 31 { 32 PetscObject obj = (PetscObject) dm; 33 DMLabel bodyLabel, faceLabel, edgeLabel; 34 double surface = 0., volume = 0., vol; 35 PetscInt dim, pStart, pEnd, p, pid; 36 const char *name; 37 PetscErrorCode ierr; 38 39 PetscFunctionBeginUser; 40 PetscCall(DMGetDimension(dm, &dim)); 41 if (dim < 2) PetscFunctionReturn(0); 42 PetscCall(DMGetLabel(dm, "EGADS Body ID", &bodyLabel)); 43 PetscCall(DMGetLabel(dm, "EGADS Face ID", &faceLabel)); 44 PetscCall(DMGetLabel(dm, "EGADS Edge ID", &edgeLabel)); 45 46 PetscCall(DMPlexGetHeightStratum(dm, 0, &pStart, &pEnd)); 47 for (p = pStart; p < pEnd; ++p) { 48 PetscCall(DMLabelGetValue(dim == 2 ? faceLabel : bodyLabel, p, &pid)); 49 if (pid >= 0) { 50 PetscCall(DMPlexComputeCellGeometryFVM(dm, p, &vol, NULL, NULL)); 51 volume += vol; 52 } 53 } 54 PetscCall(DMPlexGetHeightStratum(dm, 1, &pStart, &pEnd)); 55 for (p = pStart; p < pEnd; ++p) { 56 PetscCall(DMLabelGetValue(dim == 2 ? edgeLabel : faceLabel, p, &pid)); 57 if (pid >= 0) { 58 PetscCall(DMPlexComputeCellGeometryFVM(dm, p, &vol, NULL, NULL)); 59 surface += vol; 60 } 61 } 62 63 PetscCall(PetscObjectGetName(obj, &name)); 64 PetscCall(PetscPrintf(PetscObjectComm(obj), "DM %s: Surface Area = %.6e Volume = %.6e\n", name ? name : "", surface, volume)); 65 PetscFunctionReturn(0); 66 } 67 68 int main(int argc, char *argv[]) 69 { 70 DM surface, dm; 71 AppCtx ctx; 72 PetscErrorCode ierr; 73 74 PetscCall(PetscInitialize(&argc, &argv, NULL, help)); 75 PetscCall(ProcessOptions(PETSC_COMM_WORLD, &ctx)); 76 PetscCall(DMPlexCreateFromFile(PETSC_COMM_WORLD, ctx.filename, "ex37_plex", PETSC_TRUE, &surface)); 77 PetscCall(PetscObjectSetName((PetscObject) surface, "CAD Surface")); 78 PetscCall(PetscObjectSetOptionsPrefix((PetscObject) surface, "sur_")); 79 PetscCall(DMSetFromOptions(surface)); 80 PetscCall(DMViewFromOptions(surface, NULL, "-dm_view")); 81 PetscCall(ComputeVolume(surface)); 82 83 if (ctx.volumeMesh) { 84 PetscCall(DMPlexGenerate(surface, "tetgen", PETSC_TRUE, &dm)); 85 PetscCall(PetscObjectSetName((PetscObject) dm, "CAD Mesh")); 86 PetscCall(DMPlexSetRefinementUniform(dm, PETSC_TRUE)); 87 PetscCall(DMViewFromOptions(dm, NULL, "-pre_dm_view")); 88 89 PetscCall(DMPlexInflateToGeomModel(dm)); 90 PetscCall(DMViewFromOptions(dm, NULL, "-inf_dm_view")); 91 92 PetscCall(DMSetFromOptions(dm)); 93 PetscCall(DMViewFromOptions(dm, NULL, "-dm_view")); 94 PetscCall(ComputeVolume(dm)); 95 } 96 97 PetscCall(DMDestroy(&dm)); 98 PetscCall(DMDestroy(&surface)); 99 PetscCall(PetscFinalize()); 100 return 0; 101 } 102 103 /*TEST 104 105 build: 106 requires: egads tetgen 107 108 test: 109 suffix: sphere_0 110 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/unit_sphere.egadslite -dm_refine 1 -sur_dm_view -dm_plex_check_all -dm_plex_egads_print_model -sur_dm_plex_view_labels "EGADS Body ID","EGADS Face ID","EGADS Edge ID" 111 112 test: 113 suffix: sphere_egads 114 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/unit_sphere.egads -dm_refine 1 -sur_dm_view -dm_plex_check_all -dm_plex_egads_print_model -sur_dm_plex_view_labels "EGADS Body ID","EGADS Face ID","EGADS Edge ID" 115 116 test: 117 suffix: sphere_iges 118 requires: broken 119 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/unit_sphere.igs -dm_refine 1 -sur_dm_view -dm_plex_check_all -dm_plex_egads_print_model -sur_dm_plex_view_labels "EGADS Body ID","EGADS Face ID","EGADS Edge ID" 120 121 test: 122 suffix: sphere_step 123 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/unit_sphere.stp -dm_refine 1 -sur_dm_view -dm_plex_check_all -dm_plex_egads_print_model -sur_dm_plex_view_labels "EGADS Body ID","EGADS Face ID","EGADS Edge ID" 124 125 test: 126 suffix: nozzle_0 127 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/nozzle.egadslite -sur_dm_refine 1 -sur_dm_view -dm_plex_check_all 128 129 test: 130 suffix: nozzle_egads 131 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/nozzle.egads -sur_dm_refine 1 -sur_dm_view -dm_plex_check_all 132 133 test: 134 suffix: nozzle_iges 135 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/nozzle.igs -sur_dm_refine 1 -sur_dm_view -dm_plex_check_all 136 137 test: 138 suffix: nozzle_step 139 args: -filename ${wPETSC_DIR}/share/petsc/datafiles/meshes/nozzle.stp -sur_dm_refine 1 -sur_dm_view -dm_plex_check_all 140 141 TEST*/ 142