Fully working PT with vtk ready output

BasicSolver/2D-seq/Makefile

@@ -42,13 +42,19 @@ $(BUILD_DIR)/%.s:  %.c
 clean:
 	$(info ===>  CLEAN)
 	@rm -rf $(BUILD_DIR)
-	@rm -f particle*.dat
+	@rm -f vtk_files/particle*.vtk
+	@rm -f vis_files/particle*.dat
 	@rm -f tags
 
 distclean: clean
 	$(info ===>  DIST CLEAN)
 	@rm -f $(TARGET)
 
+viz:
+	$(info ===>  REMOVING VIZUALISATION FILES)	
+	@rm -f vtk_files/particle*.vtk
+	@rm -f vis_files/particle*.dat
+
 info:
 	$(info $(CFLAGS))
 	$(Q)$(CC) $(VERSION)

BasicSolver/2D-seq/dcavity.par

@@ -51,10 +51,10 @@ gamma    0.9		# upwind differencing factor gamma
 numberOfParticles   30
 startTime           0
 injectTimePeriod    2.0
-writeTimePeriod     2.0
+writeTimePeriod     0.5
 
 x1                  0.1
-y1                  0.5
+y1                  0.9
 x2                  0.9
-y2                  0.5
+y2                  0.9
 #===============================================================================

BasicSolver/2D-seq/src/particletracing.c

@@ -116,10 +116,34 @@ void writeParticles(ParticleTracer* particletracer, Solver* solver)
     VtkOptions opts = { .solver = solver, .particletracer = particletracer };
 
     char filename[50];
-    snprintf(filename, 50, "vtk_files/particles_%d.vtk", ts++);
-    vtkOpen(&opts, filename);
+    snprintf(filename, 50, "vtk_files/particles%d.vtk", ts);
+    vtkOpen(&opts, filename, ts);
     vtkParticle(&opts, "particle");
     vtkClose(&opts);
+
+    FILE* fp;
+    Particle* particlePool = particletracer->particlePool;
+
+    snprintf(filename, 50, "vis_files/particles_%d.dat", ts);
+    fp = fopen(filename, "w");
+
+    if (fp == NULL) {
+        printf("Error!\n");
+        exit(EXIT_FAILURE);
+    }
+
+    for (int i = 0; i < particletracer->totalParticles; ++i)
+    {
+         if(particlePool[i].flag == true)
+        {
+            double x = particlePool[i].x;
+            double y = particlePool[i].y;
+            fprintf(fp, "%f %f\n", x, y);
+        }
+    }
+    fclose(fp);
+
+    ++ts;
 }
 
 void initParticleTracer(ParticleTracer* particletracer, Parameter* params)

BasicSolver/2D-seq/src/vtkWriter.c

@@ -1,112 +0,0 @@
-/*
- * Copyright (C) 2022 NHR@FAU, University Erlangen-Nuremberg.
- * All rights reserved. This file is part of nusif-solver.
- * Use of this source code is governed by a MIT style
- * license that can be found in the LICENSE file.
- */
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-#include "vtkWriter.h"
-
-static float floatSwap(float f)
-{
-    union {
-        float f;
-        char b[4];
-    } dat1, dat2;
-
-    dat1.f    = f;
-    dat2.b[0] = dat1.b[3];
-    dat2.b[1] = dat1.b[2];
-    dat2.b[2] = dat1.b[1];
-    dat2.b[3] = dat1.b[0];
-    return dat2.f;
-}
-
-static void writeHeader(VtkOptions* o)
-{
-    fprintf(o->fh, "# vtk DataFile Version 3.0\n");
-    fprintf(o->fh, "PAMPI cfd solver particle tracing file\n");
-    if (o->fmt == ASCII) {
-        fprintf(o->fh, "ASCII\n");
-    } else if (o->fmt == BINARY) {
-        fprintf(o->fh, "BINARY\n");
-    }
-
-    fprintf(o->fh, "DATASET STRUCTURED_POINTS\n");
-    fprintf(o->fh, "DIMENSIONS %d %d 0\n", o->solver->imax, o->solver->jmax);
-    fprintf(o->fh,
-        "ORIGIN %f %f 0.0\n",
-        o->solver->dx * 0.5,
-        o->solver->dy * 0.5);
-    fprintf(o->fh, "SPACING %f %f 0\n", o->solver->dx, o->solver->dy);
-    fprintf(o->fh, "POINT_DATA %d\n", o->particletracer->totalParticles);
-}
-
-void vtkOpen(VtkOptions* o, char* problem)
-{
-    o->fh = fopen(problem, "w");
-    writeHeader(o);
-
-    printf("Writing VTK output for %s\n", problem);
-}
-
-void vtkParticle(VtkOptions* o, char* name)
-{
-    Particle* particlePool = o->particletracer->particlePool;
-
-    int imax = o->solver->imax;
-    int jmax = o->solver->jmax;
-
-    if (o->fh == NULL) {
-        printf("vtkWriter not initialize! Call vtkOpen first!\n");
-        exit(EXIT_FAILURE);
-    }
-
-    fprintf(o->fh, "VECTORS %s float\n", name);
-    fprintf(o->fh, "LOOKUP_TABLE default\n");
-
-
-    for (int i = 0; i < o->particletracer->totalParticles; ++i)
-    {
-        if(particlePool[i].flag == true)
-        {
-            double x = particlePool[i].x;
-            double y = particlePool[i].y;
-            fprintf(o->fh, "%f %f 0.0\n", x, y);
-        }
-    }
-
-    /*
-    for (int k = 0; k < kmax; k++) {
-        for (int j = 0; j < jmax; j++) {
-            for (int i = 0; i < imax; i++) {
-                if (o->fmt == ASCII) {
-                    fprintf(o->fh,
-                        "%f %f %f\n",
-                        G(vec.u, i, j, k),
-                        G(vec.v, i, j, k),
-                        G(vec.w, i, j, k));
-                } else if (o->fmt == BINARY) {
-                    fwrite((float[3]) { floatSwap(G(vec.u, i, j, k)),
-                               floatSwap(G(vec.v, i, j, k)),
-                               floatSwap(G(vec.w, i, j, k)) },
-                        sizeof(float),
-                        3,
-                        o->fh);
-                }
-            }
-        }
-    }
-    if (o->fmt == BINARY) fprintf(o->fh, "\n");
-
-    */
-}
-
-void vtkClose(VtkOptions* o)
-{
-    fclose(o->fh);
-    o->fh = NULL;
-}

BasicSolver/2D-seq/src/vtkWriter.h

@@ -20,7 +20,7 @@ typedef struct VtkOptions {
     ParticleTracer* particletracer;
 } VtkOptions;
 
-extern void vtkOpen(VtkOptions* opts, char* filename);
+extern void vtkOpen(VtkOptions* opts, char* filename, int ts);
 extern void vtkParticle(VtkOptions* opts, char* name);
 extern void vtkClose(VtkOptions* opts);
 #endif // __VTKWRITER_H_

BasicSolver/2D-seq/vis_files/animate.plot

@@ -1,9 +1,9 @@
 unset border; unset tics; unset key;
 set term gif animate delay 50
 set output "trace.gif"
-set xrange [0:30]
-set yrange [0:4]
-do for [ts=0:48] {
+set xrange [0:1]
+set yrange [0:1]
+do for [ts=0:198] {
     plot "particles_".ts.".dat" with points pointtype 7
 }
 unset output