1 #include <../src/sys/classes/viewer/impls/vtk/vtkvimpl.h> /*I "petscviewer.h" I*/ 2 3 /*MC 4 PetscViewerVTKWriteFunction - functional form used to provide writer to the PetscViewerVTK 5 6 Synopsis: 7 #include <petscviewer.h> 8 PetscViewerVTKWriteFunction(PetscObject object,PetscViewer viewer) 9 10 Input Parameters: 11 + object - the PETSc object to be written 12 - viewer - viewer it is to be written to 13 14 Level: developer 15 16 .seealso: PetscViewerVTKAddField() 17 M*/ 18 19 #undef __FUNCT__ 20 #define __FUNCT__ "PetscViewerVTKAddField" 21 /*@C 22 PetscViewerVTKAddField - Add a field to the viewer 23 24 Collective 25 26 Input Arguments: 27 + viewer - VTK viewer 28 . dm - DM on which Vec lives 29 . PetscViewerVTKWriteFunction - function to write this Vec 30 . fieldtype - Either PETSC_VTK_POINT_FIELD or PETSC_VTK_CELL_FIELD 31 - vec - Vec to write 32 33 Level: developer 34 35 Note: 36 This routine keeps exclusive ownership of the Vec. The caller should not use or destroy the Vec after adding it. 37 38 .seealso: PetscViewerVTKOpen(), DMDAVTKWriteAll(), PetscViewerVTKWriteFunction 39 @*/ 40 PetscErrorCode PetscViewerVTKAddField(PetscViewer viewer,PetscObject dm,PetscErrorCode (*PetscViewerVTKWriteFunction)(PetscObject,PetscViewer),PetscViewerVTKFieldType fieldtype,PetscObject vec) 41 { 42 PetscErrorCode ierr; 43 44 PetscFunctionBegin; 45 PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,1); 46 PetscValidHeader(dm,2); 47 PetscValidHeader(vec,4); 48 ierr = PetscUseMethod(viewer,"PetscViewerVTKAddField_C",(PetscViewer,PetscObject,PetscErrorCode (*)(PetscObject,PetscViewer),PetscViewerVTKFieldType,PetscObject),(viewer,dm,PetscViewerVTKWriteFunction,fieldtype,vec));CHKERRQ(ierr); 49 PetscFunctionReturn(0); 50 } 51 52 #undef __FUNCT__ 53 #define __FUNCT__ "PetscViewerDestroy_VTK" 54 static PetscErrorCode PetscViewerDestroy_VTK(PetscViewer viewer) 55 { 56 PetscViewer_VTK *vtk = (PetscViewer_VTK*)viewer->data; 57 PetscErrorCode ierr; 58 59 PetscFunctionBegin; 60 ierr = PetscFree(vtk->filename);CHKERRQ(ierr); 61 ierr = PetscFree(vtk);CHKERRQ(ierr); 62 ierr = PetscObjectComposeFunction((PetscObject)viewer,"PetscViewerFileSetName_C",NULL);CHKERRQ(ierr); 63 ierr = PetscObjectComposeFunction((PetscObject)viewer,"PetscViewerFileSetMode_C",NULL);CHKERRQ(ierr); 64 ierr = PetscObjectComposeFunction((PetscObject)viewer,"PetscViewerVTKAddField_C",NULL);CHKERRQ(ierr); 65 PetscFunctionReturn(0); 66 } 67 68 #undef __FUNCT__ 69 #define __FUNCT__ "PetscViewerFlush_VTK" 70 static PetscErrorCode PetscViewerFlush_VTK(PetscViewer viewer) 71 { 72 PetscViewer_VTK *vtk = (PetscViewer_VTK*)viewer->data; 73 PetscErrorCode ierr; 74 PetscViewerVTKObjectLink link,next; 75 76 PetscFunctionBegin; 77 if (vtk->link && (!vtk->dm || !vtk->write)) SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_WRONGSTATE,"No fields or no grid"); 78 if (vtk->write) {ierr = (*vtk->write)(vtk->dm,viewer);CHKERRQ(ierr);} 79 for (link=vtk->link; link; link=next) { 80 next = link->next; 81 ierr = PetscObjectDestroy(&link->vec);CHKERRQ(ierr); 82 ierr = PetscFree(link);CHKERRQ(ierr); 83 } 84 ierr = PetscObjectDestroy(&vtk->dm);CHKERRQ(ierr); 85 vtk->write = NULL; 86 PetscFunctionReturn(0); 87 } 88 89 #undef __FUNCT__ 90 #define __FUNCT__ "PetscViewerFileSetName_VTK" 91 PetscErrorCode PetscViewerFileSetName_VTK(PetscViewer viewer,const char name[]) 92 { 93 PetscViewer_VTK *vtk = (PetscViewer_VTK*)viewer->data; 94 PetscErrorCode ierr; 95 PetscBool isvtk,isvts,isvtu,isvtr; 96 size_t len; 97 98 PetscFunctionBegin; 99 ierr = PetscViewerFlush(viewer);CHKERRQ(ierr); 100 ierr = PetscFree(vtk->filename);CHKERRQ(ierr); 101 ierr = PetscStrlen(name,&len);CHKERRQ(ierr); 102 ierr = PetscStrcasecmp(name+len-4,".vtk",&isvtk);CHKERRQ(ierr); 103 ierr = PetscStrcasecmp(name+len-4,".vts",&isvts);CHKERRQ(ierr); 104 ierr = PetscStrcasecmp(name+len-4,".vtu",&isvtu);CHKERRQ(ierr); 105 ierr = PetscStrcasecmp(name+len-4,".vtr",&isvtr);CHKERRQ(ierr); 106 if (isvtk) { 107 if (viewer->format == PETSC_VIEWER_DEFAULT) {ierr = PetscViewerSetFormat(viewer,PETSC_VIEWER_ASCII_VTK);CHKERRQ(ierr);} 108 if (viewer->format != PETSC_VIEWER_ASCII_VTK) SETERRQ2(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_INCOMP,"Cannot use file '%s' with format %s, should have '.vtk' extension",name,PetscViewerFormats[viewer->format]); 109 } else if (isvts) { 110 if (viewer->format == PETSC_VIEWER_DEFAULT) {ierr = PetscViewerSetFormat(viewer,PETSC_VIEWER_VTK_VTS);CHKERRQ(ierr);} 111 if (viewer->format != PETSC_VIEWER_VTK_VTS) SETERRQ2(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_INCOMP,"Cannot use file '%s' with format %s, should have '.vts' extension",name,PetscViewerFormats[viewer->format]); 112 } else if (isvtu) { 113 if (viewer->format == PETSC_VIEWER_DEFAULT) {ierr = PetscViewerSetFormat(viewer,PETSC_VIEWER_VTK_VTU);CHKERRQ(ierr);} 114 if (viewer->format != PETSC_VIEWER_VTK_VTU) SETERRQ2(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_INCOMP,"Cannot use file '%s' with format %s, should have '.vtu' extension",name,PetscViewerFormats[viewer->format]); 115 } else if (isvtr) { 116 if (viewer->format == PETSC_VIEWER_DEFAULT) {ierr = PetscViewerSetFormat(viewer,PETSC_VIEWER_VTK_VTR);CHKERRQ(ierr);} 117 if (viewer->format != PETSC_VIEWER_VTK_VTR) SETERRQ2(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_INCOMP,"Cannot use file '%s' with format %s, should have '.vtr' extension",name,PetscViewerFormats[viewer->format]); 118 } else SETERRQ1(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_UNKNOWN_TYPE,"File '%s' has unrecognized extension",name); 119 ierr = PetscStrallocpy(name,&vtk->filename);CHKERRQ(ierr); 120 PetscFunctionReturn(0); 121 } 122 123 #undef __FUNCT__ 124 #define __FUNCT__ "PetscViewerFileSetMode_VTK" 125 PetscErrorCode PetscViewerFileSetMode_VTK(PetscViewer viewer,PetscFileMode type) 126 { 127 PetscViewer_VTK *vtk = (PetscViewer_VTK*)viewer->data; 128 129 PetscFunctionBegin; 130 PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,1); 131 vtk->btype = type; 132 PetscFunctionReturn(0); 133 } 134 135 #undef __FUNCT__ 136 #define __FUNCT__ "PetscViewerVTKAddField_VTK" 137 PetscErrorCode PetscViewerVTKAddField_VTK(PetscViewer viewer,PetscObject dm,PetscErrorCode (*PetscViewerVTKWriteFunction)(PetscObject,PetscViewer),PetscViewerVTKFieldType fieldtype,PetscObject vec) 138 { 139 PetscViewer_VTK *vtk = (PetscViewer_VTK*)viewer->data; 140 PetscViewerVTKObjectLink link, tail = vtk->link; 141 PetscErrorCode ierr; 142 143 PetscFunctionBegin; 144 if (vtk->dm) { 145 if (dm != vtk->dm) SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_INCOMP,"Cannot write a field from more than one grid to the same VTK file"); 146 } 147 vtk->dm = dm; 148 vtk->write = PetscViewerVTKWriteFunction; 149 ierr = PetscMalloc(sizeof(struct _n_PetscViewerVTKObjectLink),&link);CHKERRQ(ierr); 150 link->ft = fieldtype; 151 link->vec = vec; 152 link->next = NULL; 153 /* Append to list */ 154 if (tail) { 155 while (tail->next) tail = tail->next; 156 tail->next = link; 157 } else vtk->link = link; 158 PetscFunctionReturn(0); 159 } 160 161 #undef __FUNCT__ 162 #define __FUNCT__ "PetscViewerCreate_VTK" 163 PETSC_EXTERN PetscErrorCode PetscViewerCreate_VTK(PetscViewer v) 164 { 165 PetscViewer_VTK *vtk; 166 PetscErrorCode ierr; 167 168 PetscFunctionBegin; 169 ierr = PetscNewLog(v,&vtk);CHKERRQ(ierr); 170 171 v->data = (void*)vtk; 172 v->ops->destroy = PetscViewerDestroy_VTK; 173 v->ops->flush = PetscViewerFlush_VTK; 174 vtk->btype = (PetscFileMode) -1; 175 vtk->filename = 0; 176 177 ierr = PetscObjectComposeFunction((PetscObject)v,"PetscViewerFileSetName_C",PetscViewerFileSetName_VTK);CHKERRQ(ierr); 178 ierr = PetscObjectComposeFunction((PetscObject)v,"PetscViewerFileSetMode_C",PetscViewerFileSetMode_VTK);CHKERRQ(ierr); 179 ierr = PetscObjectComposeFunction((PetscObject)v,"PetscViewerVTKAddField_C",PetscViewerVTKAddField_VTK);CHKERRQ(ierr); 180 PetscFunctionReturn(0); 181 } 182 183 #undef __FUNCT__ 184 #define __FUNCT__ "PetscViewerVTKOpen" 185 /*@C 186 PetscViewerVTKOpen - Opens a file for VTK output. 187 188 Collective on MPI_Comm 189 190 Input Parameters: 191 + comm - MPI communicator 192 . name - name of file 193 - type - type of file 194 $ FILE_MODE_WRITE - create new file for binary output 195 $ FILE_MODE_READ - open existing file for binary input (not currently supported) 196 $ FILE_MODE_APPEND - open existing file for binary output (not currently supported) 197 198 Output Parameter: 199 . vtk - PetscViewer for VTK input/output to use with the specified file 200 201 Level: beginner 202 203 Note: 204 This PetscViewer should be destroyed with PetscViewerDestroy(). 205 206 Concepts: VTK files 207 Concepts: PetscViewer^creating 208 209 .seealso: PetscViewerASCIIOpen(), PetscViewerSetFormat(), PetscViewerDestroy(), 210 VecView(), MatView(), VecLoad(), MatLoad(), 211 PetscFileMode, PetscViewer 212 @*/ 213 PetscErrorCode PetscViewerVTKOpen(MPI_Comm comm,const char name[],PetscFileMode type,PetscViewer *vtk) 214 { 215 PetscErrorCode ierr; 216 217 PetscFunctionBegin; 218 ierr = PetscViewerCreate(comm,vtk);CHKERRQ(ierr); 219 ierr = PetscViewerSetType(*vtk,PETSCVIEWERVTK);CHKERRQ(ierr); 220 ierr = PetscViewerFileSetMode(*vtk,type);CHKERRQ(ierr); 221 ierr = PetscViewerFileSetName(*vtk,name);CHKERRQ(ierr); 222 PetscFunctionReturn(0); 223 } 224 225 #undef __FUNCT__ 226 #define __FUNCT__ "PetscViewerVTKFWrite" 227 /*@C 228 PetscViewerVTKFWrite - write binary data preceded by 32-bit int length (in bytes), does not do byte swapping. 229 230 Logically collective on PetscViewer 231 232 Input Parameters: 233 + viewer - logically collective viewer, data written from rank 0 234 . fp - file pointer valid on rank 0 235 . data - data pointer valid on rank 0 236 . n - number of data items 237 - dtype - data type 238 239 Level: developer 240 241 Notes: If PetscScalar is __float128 then the binary files are written in double precision 242 243 Concepts: VTK files 244 Concepts: PetscViewer^creating 245 246 .seealso: DMDAVTKWriteAll(), DMComplexVTKWriteAll(), PetscViewerSetFormat(), PetscViewerVTKOpen(), PetscBinaryWrite() 247 @*/ 248 PetscErrorCode PetscViewerVTKFWrite(PetscViewer viewer,FILE *fp,const void *data,PetscInt n,PetscDataType dtype) 249 { 250 PetscErrorCode ierr; 251 PetscMPIInt rank; 252 #if defined(PETSC_USE_REAL___FLOAT128) 253 PetscInt i; 254 double *tmp = NULL; 255 PetscReal *ttmp = (PetscReal*)data; 256 #endif 257 258 PetscFunctionBegin; 259 if (n < 0) SETERRQ1(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_OUTOFRANGE,"Trying to write a negative amount of data %D",n); 260 if (!n) PetscFunctionReturn(0); 261 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)viewer),&rank);CHKERRQ(ierr); 262 if (!rank) { 263 size_t count; 264 PetscInt size; 265 PetscVTKInt bytes; 266 switch (dtype) { 267 case PETSC_DOUBLE: 268 size = sizeof(double); 269 break; 270 case PETSC_FLOAT: 271 size = sizeof(float); 272 break; 273 #if defined(PETSC_USE_REAL___FLOAT128) 274 case PETSC___FLOAT128: 275 size = sizeof(double); 276 ierr = PetscMalloc1(n,&tmp);CHKERRQ(ierr); 277 for (i=0; i<n; i++) tmp[i] = ttmp[i]; 278 data = (void*) tmp; 279 break; 280 #endif 281 case PETSC_INT: 282 size = sizeof(PetscInt); 283 break; 284 case PETSC_ENUM: 285 size = sizeof(PetscEnum); 286 break; 287 case PETSC_CHAR: 288 size = sizeof(char); 289 break; 290 default: SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_SUP,"Data type not supported"); 291 } 292 bytes = PetscVTKIntCast(size*n); 293 294 count = fwrite(&bytes,sizeof(int),1,fp); 295 if (count != 1) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_WRITE,"Error writing byte count"); 296 count = fwrite(data,size,(size_t)n,fp); 297 if ((PetscInt)count != n) SETERRQ3(PETSC_COMM_SELF,PETSC_ERR_FILE_WRITE,"Wrote %D/%D array members of size %D",(PetscInt)count,n,(PetscInt)size); 298 #if defined(PETSC_USE_REAL___FLOAT128) 299 ierr = PetscFree(tmp);CHKERRQ(ierr); 300 #endif 301 } 302 PetscFunctionReturn(0); 303 } 304