54 lines
1.6 KiB
Markdown
54 lines
1.6 KiB
Markdown
---
|
|
parent: Features
|
|
---
|
|
|
|
# Remarks on Voice Hints
|
|
|
|
BRouter calculates voice hints but they are not present in all export formats. And within formats,
|
|
how they are presented will vary.
|
|
|
|
There are gpx formats for
|
|
* OsmAnd
|
|
* Locus
|
|
* Comment-style
|
|
* Gpsies
|
|
* Orux
|
|
|
|
The calculation starts with angles and comparing with the 'bad ways' (ways that are not
|
|
used on this junction). So e.g. an almost 90 degree hint can become "sharp right turn" if another
|
|
way is at 110 degrees.
|
|
|
|
And there are other rules
|
|
* show 'continue' only if the way crosses a higher priority way
|
|
* roundabouts have an exit marker
|
|
* u-turn between -179 and +179 degree
|
|
* merge two hints when near to each other - e.g. left, left to u-turn left
|
|
* marker when highway exit and continue nearly same direction
|
|
* beeline goes direct from via to via point
|
|
|
|
There are some variables in the profiles that affect on the voice hint generation:
|
|
* considerTurnRestrictions -
|
|
* turnInstructionCatchingRange - check distance to merge voice hints
|
|
* turnInstructionRoundabouts - use voice hints on roundabouts
|
|
|
|
Voice hint variables
|
|
|
|
| short | description |
|
|
| :----- | :----- |
|
|
| C | continue (go straight) |
|
|
| TL | turn left |
|
|
| TSLL | turn slightly left |
|
|
| TSHL | turn sharply left |
|
|
| TR | turn right |
|
|
| TSLR | turn slightly right |
|
|
| TSHR | turn sharply right |
|
|
| KL | keep left |
|
|
| KR | keep right |
|
|
| TLU | u-turn left |
|
|
| TU | 180 degree u-turn |
|
|
| TRU | u-turn right |
|
|
| OFFR | off route |
|
|
| RNDB | roundabout |
|
|
| RNLB | roundabout left |
|
|
| BL | beeline routing |
|
|
|