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; 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 if (isvtk) { 106 if (viewer->format == PETSC_VIEWER_DEFAULT) {ierr = PetscViewerSetFormat(viewer,PETSC_VIEWER_ASCII_VTK);CHKERRQ(ierr);} 107 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]); 108 } else if (isvts) { 109 if (viewer->format == PETSC_VIEWER_DEFAULT) {ierr = PetscViewerSetFormat(viewer,PETSC_VIEWER_VTK_VTS);CHKERRQ(ierr);} 110 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]); 111 } else if (isvtu) { 112 if (viewer->format == PETSC_VIEWER_DEFAULT) {ierr = PetscViewerSetFormat(viewer,PETSC_VIEWER_VTK_VTU);CHKERRQ(ierr);} 113 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]); 114 } else SETERRQ1(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_UNKNOWN_TYPE,"File '%s' has unrecognized extension",name); 115 ierr = PetscStrallocpy(name,&vtk->filename);CHKERRQ(ierr); 116 PetscFunctionReturn(0); 117 } 118 119 #undef __FUNCT__ 120 #define __FUNCT__ "PetscViewerFileSetMode_VTK" 121 PetscErrorCode PetscViewerFileSetMode_VTK(PetscViewer viewer,PetscFileMode type) 122 { 123 PetscViewer_VTK *vtk = (PetscViewer_VTK*)viewer->data; 124 125 PetscFunctionBegin; 126 PetscValidHeaderSpecific(viewer,PETSC_VIEWER_CLASSID,1); 127 vtk->btype = type; 128 PetscFunctionReturn(0); 129 } 130 131 #undef __FUNCT__ 132 #define __FUNCT__ "PetscViewerVTKAddField_VTK" 133 PetscErrorCode PetscViewerVTKAddField_VTK(PetscViewer viewer,PetscObject dm,PetscErrorCode (*PetscViewerVTKWriteFunction)(PetscObject,PetscViewer),PetscViewerVTKFieldType fieldtype,PetscObject vec) 134 { 135 PetscViewer_VTK *vtk = (PetscViewer_VTK*)viewer->data; 136 PetscViewerVTKObjectLink link, tail = vtk->link; 137 PetscErrorCode ierr; 138 139 PetscFunctionBegin; 140 if (vtk->dm) { 141 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"); 142 } 143 vtk->dm = dm; 144 vtk->write = PetscViewerVTKWriteFunction; 145 ierr = PetscMalloc(sizeof(struct _n_PetscViewerVTKObjectLink),&link);CHKERRQ(ierr); 146 link->ft = fieldtype; 147 link->vec = vec; 148 link->next = NULL; 149 /* Append to list */ 150 if (tail) { 151 while (tail->next) tail = tail->next; 152 tail->next = link; 153 } else vtk->link = link; 154 PetscFunctionReturn(0); 155 } 156 157 #undef __FUNCT__ 158 #define __FUNCT__ "PetscViewerCreate_VTK" 159 PETSC_EXTERN PetscErrorCode PetscViewerCreate_VTK(PetscViewer v) 160 { 161 PetscViewer_VTK *vtk; 162 PetscErrorCode ierr; 163 164 PetscFunctionBegin; 165 ierr = PetscNewLog(v,PetscViewer_VTK,&vtk);CHKERRQ(ierr); 166 167 v->data = (void*)vtk; 168 v->ops->destroy = PetscViewerDestroy_VTK; 169 v->ops->flush = PetscViewerFlush_VTK; 170 vtk->btype = (PetscFileMode) -1; 171 vtk->filename = 0; 172 173 ierr = PetscObjectComposeFunction((PetscObject)v,"PetscViewerFileSetName_C",PetscViewerFileSetName_VTK);CHKERRQ(ierr); 174 ierr = PetscObjectComposeFunction((PetscObject)v,"PetscViewerFileSetMode_C",PetscViewerFileSetMode_VTK);CHKERRQ(ierr); 175 ierr = PetscObjectComposeFunction((PetscObject)v,"PetscViewerVTKAddField_C",PetscViewerVTKAddField_VTK);CHKERRQ(ierr); 176 PetscFunctionReturn(0); 177 } 178 179 #undef __FUNCT__ 180 #define __FUNCT__ "PetscViewerVTKOpen" 181 /*@C 182 PetscViewerVTKOpen - Opens a file for VTK output. 183 184 Collective on MPI_Comm 185 186 Input Parameters: 187 + comm - MPI communicator 188 . name - name of file 189 - type - type of file 190 $ FILE_MODE_WRITE - create new file for binary output 191 $ FILE_MODE_READ - open existing file for binary input (not currently supported) 192 $ FILE_MODE_APPEND - open existing file for binary output (not currently supported) 193 194 Output Parameter: 195 . vtk - PetscViewer for VTK input/output to use with the specified file 196 197 Level: beginner 198 199 Note: 200 This PetscViewer should be destroyed with PetscViewerDestroy(). 201 202 Concepts: VTK files 203 Concepts: PetscViewer^creating 204 205 .seealso: PetscViewerASCIIOpen(), PetscViewerSetFormat(), PetscViewerDestroy(), 206 VecView(), MatView(), VecLoad(), MatLoad(), 207 PetscFileMode, PetscViewer 208 @*/ 209 PetscErrorCode PetscViewerVTKOpen(MPI_Comm comm,const char name[],PetscFileMode type,PetscViewer *vtk) 210 { 211 PetscErrorCode ierr; 212 213 PetscFunctionBegin; 214 ierr = PetscViewerCreate(comm,vtk);CHKERRQ(ierr); 215 ierr = PetscViewerSetType(*vtk,PETSCVIEWERVTK);CHKERRQ(ierr); 216 ierr = PetscViewerFileSetMode(*vtk,type);CHKERRQ(ierr); 217 ierr = PetscViewerFileSetName(*vtk,name);CHKERRQ(ierr); 218 PetscFunctionReturn(0); 219 } 220 221 #undef __FUNCT__ 222 #define __FUNCT__ "PetscViewerVTKFWrite" 223 /*@C 224 PetscViewerVTKFWrite - write binary data preceded by 32-bit int length (in bytes), does not do byte swapping. 225 226 Logically collective on PetscViewer 227 228 Input Parameters: 229 + viewer - logically collective viewer, data written from rank 0 230 . fp - file pointer valid on rank 0 231 . data - data pointer valid on rank 0 232 . n - number of data items 233 - dtype - data type 234 235 Level: developer 236 237 Concepts: VTK files 238 Concepts: PetscViewer^creating 239 240 .seealso: DMDAVTKWriteAll(), DMComplexVTKWriteAll(), PetscViewerSetFormat(), PetscViewerVTKOpen(), PetscBinaryWrite() 241 @*/ 242 PetscErrorCode PetscViewerVTKFWrite(PetscViewer viewer,FILE *fp,const void *data,PetscInt n,PetscDataType dtype) 243 { 244 PetscErrorCode ierr; 245 PetscMPIInt rank; 246 247 PetscFunctionBegin; 248 if (n < 0) SETERRQ1(PetscObjectComm((PetscObject)viewer),PETSC_ERR_ARG_OUTOFRANGE,"Trying to write a negative amount of data %D",n); 249 if (!n) PetscFunctionReturn(0); 250 ierr = MPI_Comm_rank(PetscObjectComm((PetscObject)viewer),&rank);CHKERRQ(ierr); 251 if (!rank) { 252 size_t count; 253 PetscInt size; 254 PetscVTKInt bytes; 255 switch (dtype) { 256 case PETSC_DOUBLE: 257 size = sizeof(double); 258 break; 259 case PETSC_FLOAT: 260 size = sizeof(float); 261 break; 262 case PETSC_INT: 263 size = sizeof(PetscInt); 264 break; 265 case PETSC_ENUM: 266 size = sizeof(PetscEnum); 267 break; 268 case PETSC_CHAR: 269 size = sizeof(char); 270 break; 271 default: SETERRQ(PetscObjectComm((PetscObject)viewer),PETSC_ERR_SUP,"Data type not supported"); 272 } 273 bytes = PetscVTKIntCast(size*n); 274 275 count = fwrite(&bytes,sizeof(int),1,fp); 276 if (count != 1) SETERRQ(PETSC_COMM_SELF,PETSC_ERR_FILE_WRITE,"Error writing byte count"); 277 count = fwrite(data,size,(size_t)n,fp); 278 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); 279 } 280 PetscFunctionReturn(0); 281 } 282