I’ve extended GraphHopper to incorporate some custom weightings by implementing several custom Weighting classes. These are working quite well, and it’s interesting to see the contrast in routes produced by the standard “fastest” weighting compared to my custom weighting.
I’m sometimes running into a problem, though, when using another custom weighting class that is based on the “fastest” weighting but adds my own custom weighting into the equation. This custom weighting class seems to usually negotiate quite well between the “fastest” weighting and my new variable, except for very long routes.
As an example, the route from San Francisco to Los Angeles is handily returned when using either “fastest” or my other simple custom weighting. However, when using the other custom weighting class, based on both “fastest” and “shortest” under the covers, I end up getting the error “Connections between locations not found”.
Reading discussions about this error, I ended up with the following combination of network_size configuration parms:
This hasn’t done anything to address the issue. What is the best approach for troubleshooting this issue, and are there any other configuration parameters to try changing?