Change Acceptance Radius for Points

mmwarren95 · May 15, 2020, 1:43am

I have been using the 2 layer point to point directions feature of ORSTools with QGIS 3.10.5. I have been studying rural America and have had about 20% of the queries failing because my start points are more than 350 meters from any road. There is a “Radiuses” parameter I can add to the API query to change the 350 meter limit after the preferences:fastest option.
How can I add the radiuses:-1 into the call to the api in the simplest way possible? I studied the Python code but couldn’t figure out where to add the command. I am willing to hard code my radius and don’t need to add to the menu in QGIS.

I really appreciate any tips!

nils · May 17, 2020, 6:14am

Just add params['radiuses'] = [-1, -1] here:

github.com

GIScience/orstools-qgis-plugin/blob/3cc6d3badb10740bfda6ec6ca07e748885349fdb/ORStools/proc/directions_points_layers_proc.py#L268


                                       QgsWkbTypes.LineString,
                                       QgsCoordinateReferenceSystem(4326))


counter = 0
for coordinates, values in directions_core.get_request_point_features(route_dict, mode):
    # Stop the algorithm if cancel button has been clicked
    if feedback.isCanceled():
        break


    params['coordinates'] = coordinates


    try:
        response = clnt.request('/v2/directions/' + profile + '/geojson', {}, post_json=params)
    except (exceptions.ApiError,
            exceptions.InvalidKey,
            exceptions.GenericServerError) as e:
        msg = "Route from {} to {} caused a {}:\n{}".format(
            values[0],
            values[1],
            e.__class__.__name__,
            str(e))

mmwarren95 · May 19, 2020, 6:49pm

Works perfectly. Exactly what I was trying but couldn’t find correct location. This helps immensely. Cheers.

AlexCarline89 · January 3, 2021, 10:20pm

Hello, I am running into the same issue with the 1 layer point method. Coding certainly isn’t my strong suit. I have found the correct .py file, but I do not see a line similar to the “params[‘coordinates’] = coordinates” listed above.

Where is the correct location to input the “params[‘radiuses’] = [-1, -1]” for the 1 layer method?
Thank you!

amandus · January 4, 2021, 2:16pm

Hi @AlexCarline89,

if you are in the correct file it is, as nils posted above, in the line 268 where you have to paste it.

make sure to not confuse it with directions_points_layer_proc.py (nice naming @nils :P)