abrensch/brouter@c9ae7c8681 added support for two new voice hints: A hint for beelines (`BL`), and a hint for 180 degree u-turns (`TU`). By adding support for both, we now know about all types of voice hints as defined in BRouter again. What makes things confusing is that the `TU` name for the respective `static final int` constant in BRouter's `VoiceHint.java` was repurposed for 180 degree u-turns, with left u-turns now being mapped to the new `TLU` constant name. Also note that originally the indexing of voice hints as used in BRouter's GeoJSON API has been changed as well due to inserting new commands in the middle of the numbering scheme instead of at the end. This API break has been fixed only in abrensch/brouter@82fecf9. Here we will rely on the fixed indexing, BRouter versions 1.7.0 and 1.7.1 without the re-indexing revert will not be supported. In addition, the voice hint mapping table has been checked to be identical to BRouter (this led to adding a missing `OFFR` symbol), and clarifying comments for planned future changes (e.g. changing the `TU` output token to `TLU` for OsmAnd) have been added. Note that beelines and 180 degree u-turns are only added to the mapping table for completeness. As BRouter-Web is handling straight lines on the client-side exclusively (which makes sense performance-wise when loading a route from a pasted URL with lots of them tracing an unmapped path), they are not expected to be in any GeoJSON response from BRouter, at least as of now. The same is true for 180 degree u-turn voice hints at cul-de-sac-style vias. If and when to emit voice hints for both cases in BRouter-Web itself is a different question, though it could likely also use the table for lookup. Test Plan: - `yarn test` - Confirm voice hints for routes with roundabouts and u-turns are unchanged. |
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| .. | ||
| Csv.js | ||
| Fit.js | ||
| Gpx.js | ||
| Kml.js | ||
| VoiceHints.js | ||
| Xml.js | ||