/[escript]/trunk/dudley/src/Mesh_saveDX.c
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Contents of /trunk/dudley/src/Mesh_saveDX.c

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Revision 123 - (show annotations)
Fri Jul 8 04:08:13 2005 UTC (14 years, 5 months ago) by jgs
Original Path: trunk/esys2/finley/src/finleyC/Mesh_saveDX.c
File MIME type: text/plain
File size: 8949 byte(s)
Merge of development branch back to main trunk on 2005-07-08

1 /* $Id$ */
2
3 /**************************************************************/
4
5 /* writes data and mesh in an opendx file */
6
7 /**************************************************************/
8
9 /* Copyrights by ACcESS, Australia 2004 */
10 /* Author: Lutz Gross, gross@access.edu.au */
11
12 /**************************************************************/
13
14 #include "Finley.h"
15 #include "Common.h"
16 #include "Mesh.h"
17 #include "escript/Data/DataC.h"
18
19 void Finley_Mesh_saveDX(const char * filename_p, Finley_Mesh *mesh_p, escriptDataC* data_p) {
20 /* if there is no mesh we just return */
21 if (mesh_p==NULL) return;
22 /* some tables needed for reordering */
23 int resort[6][9]={
24 {0,1}, /* line */
25 {0,1,2}, /* triagle */
26 {0,1,2,3}, /* tetrahedron */
27 {0,3,1,2}, /* quadrilateral */
28 {3,0,7,4,2,1,6,5}, /* hexahedron */
29 };
30 Finley_ElementFile* elements=NULL;
31 char elemTypeStr[32];
32 int i,j,k,numDXNodesPerElement,*resortIndex,isCellCentered=TRUE,nodetype=FINLEY_DEGREES_OF_FREEDOM;
33 double* values,rtmp;
34 int nDim = mesh_p->Nodes->numDim;
35 /* open the file and check handel */
36 FILE * fileHandle_p = fopen(filename_p, "w");
37 if (fileHandle_p==NULL) {
38 Finley_ErrorCode=IO_ERROR;
39 sprintf(Finley_ErrorMsg,"File %s could not be opened for writing.",filename_p);
40 return;
41 }
42 /* positions */
43 fprintf(fileHandle_p, "object 1 class array type float rank 1 shape %d items %d data follows\n",
44 nDim, mesh_p->Nodes->reducedNumNodes);
45 for (i = 0; i < mesh_p->Nodes->numNodes; i++) {
46 if (mesh_p->Nodes->toReduced[i]>=0) {
47 fprintf(fileHandle_p, "%g", mesh_p->Nodes->Coordinates[INDEX2(0, i, nDim)]);
48 for (j = 1; j < nDim; j++) fprintf(fileHandle_p, " %g",mesh_p->Nodes->Coordinates[INDEX2(j, i, nDim)]);
49 fprintf(fileHandle_p, "\n");
50 }
51 }
52 /* connections */
53 /* get a pointer to the relevant mesh component */
54 if (isEmpty(data_p)) {
55 elements=mesh_p->Elements;
56 } else {
57 switch(getFunctionSpaceType(data_p)) {
58 case(FINLEY_DEGREES_OF_FREEDOM):
59 nodetype=FINLEY_DEGREES_OF_FREEDOM;
60 isCellCentered=FALSE;
61 elements=mesh_p->Elements;
62 break;
63 case(FINLEY_REDUCED_DEGREES_OF_FREEDOM):
64 nodetype=FINLEY_REDUCED_DEGREES_OF_FREEDOM;
65 isCellCentered=FALSE;
66 break;
67 elements=mesh_p->Elements;
68 case(FINLEY_NODES):
69 nodetype=FINLEY_NODES;
70 isCellCentered=FALSE;
71 elements=mesh_p->Elements;
72 break;
73 case(FINLEY_ELEMENTS):
74 isCellCentered=TRUE;
75 elements=mesh_p->Elements;
76 break;
77 case(FINLEY_FACE_ELEMENTS):
78 isCellCentered=TRUE;
79 elements=mesh_p->FaceElements;
80 break;
81 case(FINLEY_POINTS):
82 isCellCentered=TRUE;
83 elements=mesh_p->Points;
84 break;
85 case(FINLEY_CONTACT_ELEMENTS_1):
86 case(FINLEY_CONTACT_ELEMENTS_2):
87 isCellCentered=TRUE;
88 elements=mesh_p->ContactElements;
89 break;
90 default:
91 Finley_ErrorCode=TYPE_ERROR;
92 sprintf(Finley_ErrorMsg,"Finley does not know anything about function space type %d",getFunctionSpaceType(data_p));
93 return;
94 }
95 }
96 /* if no element table is present jump over the connection table */
97 if (elements!=NULL) {
98 ElementTypeId TypeId = elements->ReferenceElement->Type->TypeId;
99 if (TypeId==Line2 || TypeId==Line3 || TypeId==Line4 ) {
100 numDXNodesPerElement=2;
101 resortIndex=resort[0];
102 strcpy(elemTypeStr, "lines");
103 } else if (TypeId==Tri3 || TypeId==Tri6 || TypeId==Tri9 || TypeId==Tri10 ) {
104 numDXNodesPerElement = 3;
105 resortIndex=resort[1];
106 strcpy(elemTypeStr, "triangles");
107 } else if (TypeId==Rec4 || TypeId==Rec8 || TypeId==Rec9 || TypeId==Rec12 || TypeId==Rec16 ) {
108 numDXNodesPerElement = 4;
109 resortIndex=resort[3];
110 strcpy(elemTypeStr, "quads");
111 } else if (TypeId==Tet4 || TypeId==Tet10 || TypeId==Tet16 ) {
112 numDXNodesPerElement = 4;
113 resortIndex=resort[2];
114 strcpy(elemTypeStr, "tetrahedra");
115 } else if (TypeId==Hex8 || TypeId==Hex20 || TypeId==Hex32 ) {
116 numDXNodesPerElement = 8;
117 resortIndex=resort[4];
118 strcpy(elemTypeStr, "cubes");
119 } else {
120 Finley_ErrorCode=VALUE_ERROR;
121 sprintf(Finley_ErrorMsg, "Element type %s is not supported by DX",elements->ReferenceElement->Type->Name);
122 return;
123 }
124 int NN=elements->ReferenceElement->Type->numNodes;
125 fprintf(fileHandle_p, "object 2 class array type int rank 1 shape %d items %d data follows\n",numDXNodesPerElement, elements->numElements);
126 for (i = 0; i < elements->numElements; i++) {
127 fprintf(fileHandle_p,"%d",mesh_p->Nodes->toReduced[elements->Nodes[INDEX2(resortIndex[0], i, NN)]]);
128 for (j = 1; j < numDXNodesPerElement; j++) {
129 fprintf(fileHandle_p," %d",mesh_p->Nodes->toReduced[elements->Nodes[INDEX2(resortIndex[j], i, NN)]]);
130 }
131 fprintf(fileHandle_p, "\n");
132 }
133 fprintf(fileHandle_p, "attribute \"element type\" string \"%s\"\n",elemTypeStr);
134 fprintf(fileHandle_p, "attribute \"ref\" string \"positions\"\n");
135
136 }
137 /* data */
138 if (!isEmpty(data_p)) {
139 int rank=getDataPointRank(data_p);
140 int nComp=getDataPointSize(data_p);
141 fprintf(fileHandle_p, "object 3 class array type float rank %d ", rank);
142 if (0 < rank) {
143 fprintf(fileHandle_p, "shape ");
144 for (i = 0; i < rank; i++) fprintf(fileHandle_p, "%d ", getDataPointShape(data_p,i));
145 }
146 if (isCellCentered) {
147 int numPointsPerSample=elements->ReferenceElement->numQuadNodes;
148 if (numPointsPerSample>0) {
149 fprintf(fileHandle_p, "items %d data follows\n", elements->numElements);
150 for (i=0;i<elements->numElements;i++) {
151 values=getSampleData(data_p,i);
152 for (k=0;k<nComp;k++) {
153 rtmp=0.;
154 for (j=0;j<numPointsPerSample;j++) rtmp+=values[INDEX2(k,j,nComp)];
155 fprintf(fileHandle_p, " %g", rtmp/numPointsPerSample);
156 }
157 fprintf(fileHandle_p, "\n");
158 }
159 fprintf(fileHandle_p, "attribute \"dep\" string \"connections\"\n");
160 }
161 } else {
162 fprintf(fileHandle_p, "items %d data follows\n", mesh_p->Nodes->reducedNumNodes);
163 for (i=0;i<mesh_p->Nodes->numNodes;i++) {
164 if (mesh_p->Nodes->toReduced[i]>=0) {
165 switch (nodetype) {
166 case(FINLEY_DEGREES_OF_FREEDOM):
167 values=getSampleData(data_p,mesh_p->Nodes->degreeOfFreedom[i]);
168 break;
169 case(FINLEY_REDUCED_DEGREES_OF_FREEDOM):
170 values=getSampleData(data_p,mesh_p->Nodes->reducedDegreeOfFreedom[i]);
171 break;
172 case(FINLEY_NODES):
173 values=getSampleData(data_p,i);
174 break;
175 }
176 for (k=0;k<nComp;k++) fprintf(fileHandle_p, " %g", values[k]);
177 fprintf(fileHandle_p, "\n");
178 }
179 }
180 fprintf(fileHandle_p, "attribute \"dep\" string \"positions\"\n");
181 }
182 }
183
184 /* and finish it up */
185 fprintf(fileHandle_p, "object 4 class field\n");
186 fprintf(fileHandle_p, "component \"positions\" value 1\n");
187 if (elements!=NULL) fprintf(fileHandle_p, "component \"connections\" value 2\n");
188 if (!isEmpty(data_p)) fprintf(fileHandle_p, "component \"data\" value 3\n");
189 fprintf(fileHandle_p, "end\n");
190 /* close the file */
191 fclose(fileHandle_p);
192 return;
193 }
194
195 /*
196 * $Log$
197 * Revision 1.4 2005/07/08 04:07:55 jgs
198 * Merge of development branch back to main trunk on 2005-07-08
199 *
200 * Revision 1.1.1.1.2.5 2005/06/29 02:34:53 gross
201 * some changes towards 64 integers in finley
202 *
203 * Revision 1.1.1.1.2.4 2005/03/03 05:01:12 gross
204 * bug in saveDX fixed
205 *
206 * Revision 1.1.1.1.2.3 2005/02/17 23:43:06 cochrane
207 * Fixed error throwing bug. Default case of switch statement should have ended
208 * with return instead of break, hence errors weren't being thrown (but they now
209 * should be).
210 *
211 * Revision 1.1.1.1.2.2 2005/02/17 05:53:26 gross
212 * some bug in saveDX fixed: in fact the bug was in
213 * DataC/getDataPointShape
214 *
215 * Revision 1.1.1.1.2.1 2005/02/17 03:23:01 gross
216 * some performance improvements in MVM
217 *
218 * Revision 1.1.1.1 2004/10/26 06:53:57 jgs
219 * initial import of project esys2
220 *
221 * Revision 1.1 2004/07/27 08:27:11 gross
222 * Finley: saveDX added: now it is possible to write data on boundary and contact elements
223 *
224 */

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