126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
/*
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* Copyright (C) NHR@FAU, University Erlangen-Nuremberg.
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* All rights reserved. This file is part of nusif-solver.
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* Use of this source code is governed by a MIT style
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* license that can be found in the LICENSE file.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "vtkWriter.h"
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static float floatSwap(float f)
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{
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union {
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float f;
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char b[4];
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} dat1, dat2;
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dat1.f = f;
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dat2.b[0] = dat1.b[3];
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dat2.b[1] = dat1.b[2];
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dat2.b[2] = dat1.b[1];
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dat2.b[3] = dat1.b[0];
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return dat2.f;
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}
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static void writeHeader(VtkOptions* o, int ts)
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{
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fprintf(o->fh, "# vtk DataFile Version 3.0\n");
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fprintf(o->fh, "PAMPI cfd solver particle tracing file\n");
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if (o->fmt == ASCII) {
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fprintf(o->fh, "ASCII\n");
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} else if (o->fmt == BINARY) {
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fprintf(o->fh, "BINARY\n");
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}
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fprintf(o->fh, "DATASET UNSTRUCTURED_GRID\n");
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fprintf(o->fh, "FIELD FieldData 2\n");
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fprintf(o->fh, "TIME 1 1 double\n");
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fprintf(o->fh, "%d\n", ts);
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fprintf(o->fh, "CYCLE 1 1 int\n");
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fprintf(o->fh, "1\n");
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}
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void vtkOpen(VtkOptions* o, char* problem, int ts)
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{
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o->fh = fopen(problem, "w");
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if (o->fh == NULL) {
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printf("vtkWriter not initialize! Call vtkOpen first!\n");
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exit(EXIT_FAILURE);
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}
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writeHeader(o, ts);
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printf("Writing VTK output for %s\n", problem);
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}
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void vtkParticle(VtkOptions* o, char* name)
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{
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Particle* particlePool = o->particletracer->particlePool;
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int imax = o->particletracer->grid->imax;
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int jmax = o->particletracer->grid->jmax;
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if (o->fh == NULL) {
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printf("vtkWriter not initialize! Call vtkOpen first!\n");
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exit(EXIT_FAILURE);
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}
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fprintf(o->fh, "POINTS %d float\n", o->particletracer->totalParticles);
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for (int i = 0; i < o->particletracer->totalParticles; ++i) {
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double x = particlePool[i].x;
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double y = particlePool[i].y;
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fprintf(o->fh, "%.2f %.2f 0.0\n", x, y);
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}
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fprintf(o->fh,
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"CELLS %d %d\n",
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o->particletracer->totalParticles,
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2 * o->particletracer->totalParticles);
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for (int i = 0; i < o->particletracer->totalParticles; ++i) {
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fprintf(o->fh, "1 %d\n", i);
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}
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fprintf(o->fh, "CELL_TYPES %d\n", o->particletracer->totalParticles);
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for (int i = 0; i < o->particletracer->totalParticles; ++i) {
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fprintf(o->fh, "1\n");
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}
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/*
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for (int k = 0; k < kmax; k++) {
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for (int j = 0; j < jmax; j++) {
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for (int i = 0; i < imax; i++) {
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if (o->fmt == ASCII) {
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fprintf(o->fh,
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"%f %f %f\n",
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G(vec.u, i, j, k),
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G(vec.v, i, j, k),
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G(vec.w, i, j, k));
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} else if (o->fmt == BINARY) {
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fwrite((float[3]) { floatSwap(G(vec.u, i, j, k)),
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floatSwap(G(vec.v, i, j, k)),
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floatSwap(G(vec.w, i, j, k)) },
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sizeof(float),
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3,
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o->fh);
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}
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}
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}
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}
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if (o->fmt == BINARY) fprintf(o->fh, "\n");
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*/
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}
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void vtkClose(VtkOptions* o)
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{
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fclose(o->fh);
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o->fh = NULL;
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}
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