Integrate sequential enhanced solver

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

@@ -0,0 +1,25 @@
+/*
+ * Copyright (C)  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.
+ */
+#ifndef __VTKWRITER_H_
+#define __VTKWRITER_H_
+#include <stdio.h>
+
+#include "particletracing.h"
+#include "solver.h"
+
+typedef enum VtkFormat { ASCII = 0, BINARY } VtkFormat;
+
+typedef struct VtkOptions {
+    VtkFormat fmt;
+    FILE* fh;
+    ParticleTracer* particletracer;
+} VtkOptions;
+
+extern void vtkOpen(VtkOptions* opts, char* filename, int ts);
+extern void vtkParticle(VtkOptions* opts, char* name);
+extern void vtkClose(VtkOptions* opts);
+#endif // __VTKWRITER_H_