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