Description
This function plots a grid associated with the mapping between two paths. This will plot n*2-1 by m*2-1 nodes,
associated with each point and segment in each path. This gets quite substantial when the paths have more than a
handful of points (5-10), and is only really useful for display and debugging purposes. This is called by
CreateMap, which overlays costs over the map on its own.Usage
PlotGrid(path1,path2)
Details
Warning--do not use for anything but very small paths, as it will take a long time to draw and be uninterpretable.