Tool to visualize .xyz file format (#99)

* Tool to visualize .xyz file format

* Some adjusts on xyz visualizer

Author: marcelsan

scripts/visualize_xyz.py

@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+
+import numpy as np
+import matplotlib
+matplotlib.use("Agg")
+import matplotlib.pyplot as plt
+import matplotlib.animation as animation
+import sys
+import utils
+
+def render_frame(num, data, line):
+    xyz_file = open(files[num])
+    
+    _x = []
+    _y = []
+
+    for xyz in xyz_file:   
+        _x.append(float(xyz.split()[0]))
+        _y.append(float(xyz.split()[1]))
+
+    line.set_data(_x, _y)
+    xyz_file.close()
+
+    return line,
+
+# Simulation Path
+path = sys.argv[1]
+output_name = sys.argv[2] if len(sys.argv) >= 2 else 'result.mp4'
+files = utils.get_all_files(path, "*.xyz")
+size_files = len(files)
+
+# Set up formatting for the movie files
+Writer = animation.writers['ffmpeg']
+writer = Writer(fps=25, bitrate=1800)
+
+fig1 = plt.figure()
+
+data = []
+l, = plt.plot([], [], 'ro')
+
+plt.xlim(0, 1)
+plt.ylim(0, 1)
+plt.xlabel('x')
+plt.title('Simulation Result')
+
+line_ani = animation.FuncAnimation(fig1, render_frame, size_files, fargs=(data, l),
+                                   interval=50, blit=True)
+
+line_ani.save(output_name, writer=writer)