Elevation API not returning same number of points as sent to it

abhiank · March 23, 2019, 3:13pm

Awesome. Sounds great!

Cool. I’ll test that out again and report back on the same thread if I see any issues.

Thanks @nils!

nils · March 25, 2019, 12:03pm

Ok, just updated the servers with the latest version, including polyline6 support:) Careful though with polyline6, there’s no implementation I know which considers elevation. However, it’s not far away from GH’s encoding code. You can try to port my code, if you feel you’d like to have 6 decimal points precision on coordinates:

github.com

GIScience/openelevationservice/blob/44f1d9b2b4e18c8dd762676a16c0530d36fbc50b/openelevationservice/server/utils/codec.py#L87


    if not is3d:
        coordinates.append((lng / factor, lat / factor))
    else:
        z_change, index = _trans(expression, index)
        z += z_change
        coordinates.append((lng / factor, lat / factor, z / 100))


return polyline_to_geometry(coordinates)




def encode(coordinates, precision=5, is3d=False):
"""
Encodes coordinates after Google's encoded polyline format. Able to encode arbitrary precision.


:param coordinates: list of coordinates in [Lon, Lat] order.
:type coordinates: lists of int


:param precision: Decimal precision to be encoded.
:type precision: int


:param is3d: Whether elevation should be encoded.

BTW, I found a bug in my previous decoding, which swapped X,Y… So, best re-do what you’ve done before.

vamsi · January 16, 2020, 12:58pm

nils.

i am using openstreetmap with ajax,javascript code with C#.Net code

i am calling service and getting positive responce

after getting responce how to show route instead of polylines

I am able to show lines between 2 points but i need to show route not lines.

Cheers,
Vamsi krishna

nils · January 16, 2020, 1:24pm

Guess you want openrouteservice, not openelevationservice…

https://openrouteservice.org/dev/#/api-docs/v2/directions/{profile}/geojson/post

vamsi · January 16, 2020, 3:19pm

Nils,

i am using direction service. Please below code which service i am using it.

i need to show the directions please le me know.

                 var baseAddress = new Uri("https://api.openrouteservice.org");
                 var response = httpClient.PostAsync("/v2/directions/driving-car", content).Result;
                responseData = await response.Content.ReadAsStringAsync();

nils · January 16, 2020, 5:14pm

Wait, I remember you now from this one…

Sorry man, can’t help you.