Visualize node.csv

For output_surface_node.csv

1. Remove title, and lines starting with '#'

2. Split the file into separate files, each file only contains 1 frame (1220 lines), using command 'split -l 1220 -d -a 4 output_surface_node.csv c.'

3. Use Paraview to load c.* by the csv reader.

4. Use 'table to point' filter, and selete columns for x, y, z coordinate

5. Select the 3D view window, and enable 'table to point' filter to visualize all nodal points.