For the purpose of mapping caves, we survey new passages so that we take main polygon (survey from point A to point B) and on each "node" (survey station A in example), we shoot multiple "splay shots" around the passage (in more or less random directions), so we obtain more information which can later be used to draw a map of the cave.
Doing this, we get a polygon with a "cloud" of points around the main line. My question is, whether is there a way to create a convex hull around this main line, using those "splay shots". This would be a great way to visualize cave passages.
Each survey leg has information about direction, inclination and length, with which we are able to get the 3d coordinate in space of each node.