A tool to convert strings between HERE Flexible Polyline format and the (now legacy) format used in HERE Places API
Project description
A tool to encode/decode HERE legacy polyline strings and convert them from/into HERE Flexible Polyline format.
Note that the HERE Places (Search) API is in maintenance: Developers need to adapt their applications to the newer HERE Geocoding & Search API to benefit from the features developed after 2018.
Install
pip install here-polyline-converter
Usage
>>> convert_legacy_to_flex(legacy_polyline_string)
Transforms a HERE legacy polyline string into a flexible polyline string. The legacy Polyline third dimension (segments width changes) is ignored.
>>> encode_legacy(iterable)
Encodes a list of coordinates to the corresponding HERE legacy polyline string representation.
Expected coordinates order: (lat, lng[, width])
. Note that width
is expected to be one of DW
, HW
, CW
.
>>> decode_legacy(legacy_polyline_string)
Decodes a HERE legacy polyline string into an array of coordinates (lat, lng[, width])
.
Note that width
is expected to be one of DW
, HW
, CW
.
Examples
>>> import here_search.polyline_converter as pc
>>> legacy_polyline = "oz5xJ67i1B1B7PzIhaxL7Y"
>>> flexible_polyline = pc.convert_legacy_to_flex(legacy_polyline)
>>> flexible_polyline
'BFoz5xJ67i1B1B7PzIhaxL7Y'
>>> points = [(50.1022829, 8.6982122), (50.1020076, 8.6956695), (50.1006313, 8.6914960), (50.0987800, 8.6875156)]
>>> pc.encode_legacy(points)
'oz5xJ67i1B1B7PzIhaxL7Y'
>>> legacy_polyline = "oz5xJ67i1B.C1B7PzIha.DxL7Y"
>>> pc.decode_legacy(legacy_polyline)
[(50.10228, 8.69821, 'CW'), (50.10201, 8.69567), (50.10063, 8.6915, 'DW'), (50.09878, 8.68752)]
License
Copyright (C) 2023 HERE Europe B.V.
See the LICENSE file in the root of this project for license details.
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