Food4Rhino

The ShortestWalk add-on for Grasshopper exposes one component which, given a network of curves and a list of lines, calculates the shortest route from line start point to line end points in a network.

It is based on a topology calculator and the A* search algorithm.

To install:

• In Grasshopper, choose File > Special Folders > Components folder. Save the gha file there.
• Right-click the file > Properties > make sure there is no "blocked" text
• Restart Rhino and Grasshopper

Please let me know comments and ideas, and see also the Rhino ShortestWalk command. The source code for this command is published here.