Reduce the size of adjacency matrix #18
Description
Possible solution in reducing the matrix includes :
- Having a bigger threshold.
- Stricter allowed theta, angle between nodes.
- Having a cone of possible forward direction, specially in 3D, something similar is used to get the RAP region possible exit points.
!!!! Reducing the matrix WILL cause issues in indexes, in particular because node_indices and labes use a full matrix. i.e if the matrix go from 30 to 20 you'll be missing the 10 last points and the graph become therefore unsolvable in most cases.
This problem mostly concerns when we want to get the coordinates for the streamline.