Here polyline decoder

[geolytix]

Here polyline decoder

[dbauszus-glx]

Following link can be used to generate response with a polyline component from the Here v8 API.

https://isoline.router.hereapi.com/v8/isolines?apiKey={key}&range[type]=time&range[values]=600&destination=52.5308,13.3847&transportMode=car

This is NOT an encoded OL feature or even geometry.

As outlined in the documentation of the here/felixble-polyline repository. The encoded string has a header which needs to be evaluated first.

If the header is known and truncated from the polyline string it should be possible to decode a float as well as the deltas belonging to that float.

https://codepen.io/dbauszus-glx/pen/qBaRzOK

[dbauszus-glx]

I added the Here Polyline as a module to the utils.

https://github.com/GEOLYTIX/xyz/blob/development/lib/utils/herePolyline.mjs

xyz.utils.herePolyline.decode('BFoz5xJ67i1B1B7PzIhaxL7Y')