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| // Helper functions for output_vtu.h
// Function to write the VTU file header
void write_vtu_header(FILE *fp, long no_points, long no_cells) {
fputs("<?xml version=\"1.0\"?>\n", fp);
fputs("<VTKFile type=\"UnstructuredGrid\" version=\"1.0\" byte_order=\"LittleEndian\" header_type=\"UInt64\">\n", fp);
fputs("\t<UnstructuredGrid>\n", fp);
fprintf(fp, "\t\t<Piece NumberOfPoints=\"%ld\" NumberOfCells=\"%ld\">\n", no_points, no_cells);
}
// Function to write scalar data arrays to the VTU file
void write_scalar_light_data(FILE *fp, scalar *list, vector *vlist, long *count, long no_cells) {
fputs("\t\t\t<CellData Scalars=\"scalars\">\n", fp);
for (scalar s in list) {
fprintf(fp, "\t\t\t\t<DataArray type=\"Float64\" Name=\"%s\" format=\"appended\" offset=\"%ld\"/>\n", s.name, *count);
*count += (no_cells * sizeof(double)) + sizeof(long);
}
for (vector v in vlist) {
fprintf(fp, "\t\t\t\t<DataArray type=\"Float64\" Name=\"%s\" NumberOfComponents=\"3\" format=\"appended\" offset=\"%ld\"/>\n", v.x.name, *count);
*count += (3 * no_cells * sizeof(double)) + sizeof(long);
}
fputs("\t\t\t</CellData>\n", fp);
}
// Function to write points data array to the VTU file
void write_points_light_data(FILE *fp, long *count, long no_points) {
fputs("\t\t\t<Points>\n", fp);
fprintf(fp, "\t\t\t\t<DataArray type=\"Float64\" NumberOfComponents=\"3\" format=\"appended\" offset=\"%ld\"/>\n", *count);
fputs("\t\t\t</Points>\n", fp);
*count += (3 * no_points * sizeof(double)) + sizeof(long);
}
// Function to write cells data arrays to the VTU file
void write_cells_light_data(FILE *fp, long *count, long no_cells, long no_cells_offset) {
fputs("\t\t\t<Cells>\n", fp);
fprintf(fp, "\t\t\t\t<DataArray type=\"Int64\" Name=\"offsets\" format=\"appended\" offset=\"%ld\"/>\n", *count);
*count += (no_cells * sizeof(long)) + sizeof(long);
fprintf(fp, "\t\t\t\t<DataArray type=\"Int8\" Name=\"types\" format=\"appended\" offset=\"%ld\"/>\n", *count);
*count += (no_cells * sizeof(char)) + sizeof(long);
fprintf(fp, "\t\t\t\t<DataArray type=\"Int64\" Name=\"connectivity\" format=\"appended\" offset=\"%ld\"/>\n", *count);
*count += (no_cells_offset * sizeof(long)) + sizeof(long);
fputs("\t\t\t</Cells>\n", fp);
}
// Function to write appended data section to the VTU file
void write_vtu_appended(FILE *fp) {
fputs("\t\t</Piece>\n", fp);
fputs("\t</UnstructuredGrid>\n", fp);
fputs("\t<AppendedData encoding=\"raw\">\n", fp);
fputs("_", fp);
}
// Function to write scalar field data
void write_scalar_heavy_data(FILE *fp, scalar *list, scalar per_mask, long no_cells) {
long block_len = no_cells * sizeof(double);
for (scalar s in list) {
fwrite(&block_len, sizeof(long), 1, fp);
foreach () {
if (per_mask[]) {
fwrite(&val(s), sizeof(double), 1, fp);
}
}
}
}
void write_scalar_heavy_data_slice(FILE *fp, scalar *list, scalar per_mask, long no_cells, coord n = {0,0,1}, double _alpha = 0) {
long block_len = no_cells * sizeof(double);
for (scalar s in list) {
fwrite(&block_len, sizeof(long), 1, fp);
foreach () {
if (per_mask[]){
double sval;
if (n.x == 1)
sval = 0.5*(val(s) + val(s,1,0,0));
else if (n.y == 1)
sval = 0.5*(val(s) + val(s,0,1,0));
else
sval = 0.5*(val(s) + val(s,0,0,1));
fwrite (&sval, sizeof (double), 1, fp);
}
}
}
}
void write_scalar_heavy_data_array(FILE *fp, long no_cells, double *pt_array_s) {
long block_len = no_cells * sizeof(double);
fwrite(&block_len, sizeof(long), 1, fp);
for (int i = 0; i < no_cells; i++) {
fwrite(&pt_array_s[i], sizeof(double), 1, fp);
}
}
// Function to write vector field data
void write_vector_heavy_data(FILE *fp, vector *vlist, scalar per_mask, long no_cells) {
long block_len = no_cells * 3 * sizeof(double);
for (vector v in vlist) {
fwrite(&block_len, sizeof(long), 1, fp);
foreach () {
if (per_mask[]) {
fwrite(&val(v.x), sizeof(double), 1, fp);
fwrite(&val(v.y), sizeof(double), 1, fp);
#if dimension == 2
double vz = 0;
fwrite(&vz, sizeof(double), 1, fp);
#elif dimension == 3
fwrite(&val(v.z), sizeof(double), 1, fp);
#endif
}
}
}
}
void write_vector_heavy_data_slice(FILE *fp, vector *vlist, scalar per_mask, long no_cells, coord n = {0,0,1}, double _alpha = 0) {
long block_len = no_cells * 3 * sizeof(double);
for (vector v in vlist) {
fwrite(&block_len, sizeof(long), 1, fp);
foreach () {
if (per_mask[]){
double xval, yval, zval;
if (n.x == 1) {
xval = 0.5*(val(v.x) + val(v.x,1,0,0));
yval = 0.5*(val(v.y) + val(v.y,1,0,0));
#if dimension == 3
zval = 0.5*(val(v.z) + val(v.z,1,0,0));
#else
zval = 0;
#endif
}
else if (n.y == 1) {
xval = 0.5*(val(v.x) + val(v.x,0,1,0));
yval = 0.5*(val(v.y) + val(v.y,0,1,0));
#if dimension == 3
zval = 0.5*(val(v.z) + val(v.z,0,1,0));
#else
zval = 0;
#endif
}
else {
xval = 0.5*(val(v.x) + val(v.x,0,0,1));
yval = 0.5*(val(v.y) + val(v.y,0,0,1));
#if dimension == 3
zval = 0.5*(val(v.z) + val(v.z,0,0,1));
#else
zval = 0;
#endif
}
fwrite (&xval, sizeof (double), 1, fp);
fwrite (&yval, sizeof (double), 1, fp);
fwrite (&zval, sizeof (double), 1, fp);
}
}
}
}
// Function to write points data
void write_points_heavy_data(FILE *fp, long no_points) {
long block_len = no_points * 3 * sizeof(double);
fwrite(&block_len, sizeof(long), 1, fp);
foreach_vertex() {
fwrite(&x, sizeof(double), 1, fp);
fwrite(&y, sizeof(double), 1, fp);
fwrite(&z, sizeof(double), 1, fp);
}
}
void write_points_heavy_data_slice(FILE *fp, long no_points, coord n = {0,0,1}, double _alpha = 0) {
long block_len = no_points * 3 * sizeof(double);
fwrite(&block_len, sizeof(long), 1, fp);
foreach_vertex() {
shortcut_slice(n,_alpha);
fwrite(&x, sizeof(double), 1, fp);
fwrite(&y, sizeof(double), 1, fp);
fwrite(&z, sizeof(double), 1, fp);
}
}
// Function to write the points (vertices) data to the VTK file
void write_points_heavy_data_array(FILE *fp, long no_points, double *pt_array_x, double *pt_array_y, double *pt_array_z) {
long block_len = no_points * 3 * sizeof(double);
fwrite(&block_len, sizeof(long), 1, fp);
for (int i = 0; i < no_points; i++) {
fwrite(&pt_array_x[i], sizeof(double), 1, fp);
fwrite(&pt_array_y[i], sizeof(double), 1, fp);
#if dimension == 2
double vz = 0;
fwrite(&vz, sizeof(double), 1, fp);
#elif dimension == 3
fwrite(&pt_array_z[i], sizeof(double), 1, fp);
#endif
}
}
// Function to write cell offsets
void write_cell_offsets(FILE *fp, long no_cells, char noffset) {
long block_len = no_cells * sizeof(long);
fwrite(&block_len, sizeof(long), 1, fp);
for (int i = 0; i < no_cells; i++) {
long offset = (i + 1) * noffset;
fwrite(&offset, sizeof(int64_t), 1, fp);
}
}
void write_cell_offsets2(FILE *fp, long nfacets, long *offsets) {
long block_len = nfacets * sizeof(long);
fwrite(&block_len, sizeof(long), 1, fp);
for (int ii = 0; ii < nfacets; ii++)
fwrite(&offsets[ii], sizeof(long), 1, fp);
}
void write_cell_offsets3(FILE *fp, long no_cells) {
long block_len = no_cells * sizeof(long);
fwrite(&block_len, sizeof(long), 1, fp);
for (long i = 0; i < no_cells; i++) {
fwrite(&i, sizeof(int64_t), 1, fp);
}
}
// Function to write cell types
void write_cell_types(FILE *fp, long no_cells, char type) {
long block_len = no_cells * sizeof(char);
fwrite(&block_len, sizeof(long), 1, fp);
for (int i = 0; i < no_cells; i++) {
fwrite(&type, sizeof(char), 1, fp);
}
}
// Function to write cell connectivity
void write_cell_connectivity(FILE *fp, vertex scalar marker, scalar per_mask, long no_cells, char noffset) {
long block_len = no_cells * noffset * sizeof(long);
fwrite(&block_len, sizeof(long), 1, fp);
foreach (serial, noauto) {
if (per_mask[]) {
long connectivity[noffset];
connectivity[0] = (long)marker[];
connectivity[1] = (long)marker[1];
connectivity[2] = (long)marker[1, 1];
connectivity[3] = (long)marker[0, 1];
#if dimension == 3
connectivity[4] = (long)marker[0, 0, 1];
connectivity[5] = (long)marker[1, 0, 1];
connectivity[6] = (long)marker[1, 1, 1];
connectivity[7] = (long)marker[0, 1, 1];
#endif
fwrite(connectivity, sizeof(long), noffset, fp);
}
}
}
void write_cell_connectivity_slice(FILE *fp, vertex scalar marker, scalar per_mask, long no_cells, char noffset, coord n = {0,0,1} ) {
long block_len = no_cells * noffset * sizeof(long);
fwrite(&block_len, sizeof(long), 1, fp);
foreach (serial, noauto) {
if (per_mask[]) {
long connectivity[noffset];
if (n.x == 1) {
connectivity[0] = (long)marker[1,0,0];
connectivity[1] = (long)marker[1,1,0];
connectivity[2] = (long)marker[1,1,1];
connectivity[3] = (long)marker[1,0,1];
}
else if (n.y == 1) {
connectivity[0] = (long)marker[0,1,0];
connectivity[1] = (long)marker[1,1,0];
connectivity[2] = (long)marker[1,1,1];
connectivity[3] = (long)marker[0,1,1];
}
else {
connectivity[0] = (long)marker[0,0,1];
connectivity[1] = (long)marker[1,0,1];
connectivity[2] = (long)marker[1,1,1];
connectivity[3] = (long)marker[0,1,1];
}
fwrite(connectivity, sizeof(long), noffset, fp);
}
}
}
// Helper function implementations (parallel)
// Function to write the header of the PVTU file
void write_pvtu_header(FILE *fp) {
fputs("<?xml version=\"1.0\"?>\n", fp);
fputs("<VTKFile type=\"PUnstructuredGrid\" version=\"1.0\" byte_order=\"LittleEndian\" header_type=\"UInt64\">\n", fp);
fputs("\t<PUnstructuredGrid GhostLevel=\"0\">\n", fp);
}
// Function to write scalar data arrays to the PVTU file
void write_scalar_light_pdata(FILE *fp, scalar *list, vector *vlist) {
fputs("\t\t<PCellData Scalars=\"scalars\">\n", fp);
for (scalar s in list) {
fprintf(fp, "\t\t\t<PDataArray type=\"Float64\" Name=\"%s\" format=\"appended\"/>\n", s.name);
}
for (vector v in vlist) {
fprintf(fp, "\t\t\t<PDataArray type=\"Float64\" NumberOfComponents=\"3\" Name=\"%s\" format=\"appended\"/>\n", v.x.name);
}
fputs("\t\t</PCellData>\n", fp);
}
// Function to write points data array to the PVTU file
void write_points_light_pdata(FILE *fp) {
fputs("\t\t<PPoints>\n", fp);
fputs("\t\t\t<PDataArray type=\"Float64\" NumberOfComponents=\"3\" format=\"appended\"/>\n", fp);
fputs("\t\t</PPoints>\n", fp);
}
// Function to write piece references for each process's VTU file to the PVTU file
void write_pieces_light_pdata(FILE *fp, char *subname) {
for (int i = 0; i < npe(); i++) {
fprintf(fp, "\t\t<Piece Source=\"%s_n%3.3d.vtu\"/>\n", subname, i);
}
fputs("\t</PUnstructuredGrid>\n", fp);
fputs("</VTKFile>\n", fp);
}
// Function to count the number of vertices and facets
void count_vertices_and_facets(scalar c, long *nverts, long *nfacets) {
foreach (serial, noauto) {
if (c[] > 1e-6 && c[] < 1. - 1e-6) {
shortcut_facets
for (int i = 0; i < m; i++)
(*nverts)++;
if (m > 0)
(*nfacets)++;
}
}
}
// Function to populate vertex coordinates and facet offsets
void populate_vertex_and_offset_arrays(scalar c, long nverts, long nfacets, double *pt_array_x, double *pt_array_y, double *pt_array_z, long *offsets) {
long iverts = 0, ifacet = 0, offset = 0;
foreach (serial, noauto) {
if (c[] > 1e-6 && c[] < 1. - 1e-6) {
shortcut_facets // we cycle if cell is not at the interface
// Calculate and store vertex coordinates
coord _p = {x, y, z};
for (int i = 0; i < m; i++) {
pt_array_x[iverts] = _p.x + v[i].x * Delta;
pt_array_y[iverts] = _p.y + v[i].y * Delta;
#if dimension == 3
pt_array_z[iverts] = _p.z + v[i].z * Delta;
#endif
iverts++;
}
// Store facet offset if there are vertices in the facet
if (m > 0) {
offset += m;
offsets[ifacet] = offset;
ifacet++;
}
}
}
}
// Function to populate arrays with values at the facets
void populate_facet_arrays(scalar c, scalar s, long nverts, long nfacets, double *val_array_s) {
long ifacet = 0;
foreach (serial, noauto) {
if (c[] > 1e-6 && c[] < 1. - 1e-6) {
shortcut_facets // we cycle if cell is not at the interface
if (m > 0){
val_array_s[ifacet] = s[];
ifacet++;
}
}
}
}
|
