• Run the file terrain_surface_distance.py. It is a Python3 script which calculates surface distance between two points for two sets of height map (pre and post eruption) and returns the difference between them.
• It requires 512 x 512 pixel height maps in two binary files titled "pre.data" and "post.data" in the root directory.
• It takes pixel coordinates of two points as an input. The coordinates must be within the range [0, 511] and should be passed as comma separated console input according to the input prompt.

Note: This data and script belongs to Cesium