On Feb 18, 2009, at 15:25, Mark Burton wrote:
What's dirindicator supposed to do, anyway? I'm thinking that maybe the dirindicator and one-way flags shouldn't be treated as independent flags, just that some applications check NET for oneway-ness, while others check NOD.
This is what the cGPSMapper doc says about it:
DirIndicator=# Direction indicator, only for streets, highways, etc. 0 no direction 1 the GPS will show direction of the road (calculated internally by GPS) Default = 0
When I originally read that, I thought that it was saying something about how the gps displayed the road, rather than affecting the routing logic.
Yes, that's what I thought, too. It turns out we're writing direction info in three places: 1. a flag in RGN (Polyline.FLAG_DIR) 2. a flag in NET (RoadDef.FLAG_DIR_INDICATOR) 3. a flag in Table A in NOD (RoadDef.TABA_FLAG_ONEWAY) Maybe I got the DirIndicator<->NET connection wrong, and DirIndicator should just be set on the polyline. Since the polyline is what's rendered, that would make a lot of sense. Then 2. and 3. would both be oneway-ness. I'll make the change. Cheers Robert