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