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Street Network View with Valhalla #1963

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angiebs opened this issue Oct 8, 2019 · 3 comments · Fixed by #3206
Closed

Street Network View with Valhalla #1963

angiebs opened this issue Oct 8, 2019 · 3 comments · Fixed by #3206

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@angiebs
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angiebs commented Oct 8, 2019

Hi,

I would like to know if there is a way to calculate a Street Network View (see image) by using Valhalla.

image

Reading the documentation it seems that has not been implemented, but I can see that Valhalla uses many algorithms and maybe it is possible to have also this functionality.

Thank you
@nilsnolde
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nilsnolde commented Oct 8, 2019 •
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+1

Related to #1703. I guess Protobuf output format is a general feature being worked on. Would be nice to keep it also in mind for /isochrone endpoint.

For inspiration: Graphhopper has implemented a CSV endpoint in the latest release to stream the road network in order of Dijkstra exporation. Super cool, but not sure what the use cases would be except flashy demos.

@angiebs, in worst case, intersect Valhalla's isolines with whatever street network you're operating it.

@kevinkreiser
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@angiebs we implemented this in geojson. where each feature is the edge in the order it was expanded by the algorithm. currently it only works for bidirectional a*. have a look at this pr: #1849

@angiebs
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angiebs commented Oct 11, 2019

Thank you very much for the info kevin.

@nilsnolde nilsnolde mentioned this issue Jul 12, 2021
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Tree view for Dijkstra
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@kevinkreiser @angiebs @nilsnolde