Mark Burton wrote:
This patch modifies the turn heading adjustment code so that the GPS will tell you to turn when you are routing from a main road to a side road in situations like this:
S S ^ S | MMMMMMMMMMMMMM | M | M | M M
You can see that the main road goes around a left corner and the side road carries straight on. Without this patch, neither mapsource or a Nuvi will tell you to turn right at this junction even if the side road has a different road class/speed from the main road.
This patch also allows you to globally enable/disable the possible adjustments by providing a bitmask with the --adjust-turn-headings option. By default, all (currently, there are 2) kinds of adjustments are enabled. See the help blurb for more info.
A value of 1 gives the old behaviour.
Mark
Cool. I'd noticed that my GPS wasn't coping with this situation properly before. Are there any further turn behaviours that still need to be coded for? Charlie