customizable-routing2.ipynb

{"cells":[{"metadata":{},"cell_type":"markdown","source":"## Customizable Routing\n\nLet's try customizable routing inside a Jupyter Notebook. Read the details in [this blog post](https://www.graphhopper.com/blog/2020/05/31/examples-for-customizable-routing/) and also [here](https://www.graphhopper.com/blog/2020/05/06/get-started-with-customizable-routing/).\nYou can install the open source GraphHopper routing engine [locally](https://github.com/graphhopper/graphhopper) and replace the route_url with\n```\nroute_url = 'http://localhost:8989/route?\n```"},{"metadata":{"trusted":true},"cell_type":"code","source":"import requests\n\napi_key = ''\nroute_url = 'https://graphhopper.com/api/1/route?key=' + api_key\n\n# https://graphhopper.com/maps/?point=52.465422%2C13.355255&point=52.534185%2C13.311996&profile=car\nstart=[13.311996,52.534185]\nend=[13.355255,52.465422]\n\ndef send_route ( json ): \n    route = requests.post(route_url, json=json).json()\n    if 'message' in route: raise Exception(route[\"message\"]) \n    path = route[\"paths\"][0]\n    print(f'distance: {(int)(path[\"distance\"]/1000)}km, time: {(int)(path[\"time\"]/60000)}min');\n\nsend_route({'profile':'car', 'points':[start,end], 'points_encoded':False})\n\ncustom_model = {\"priority\": [{ \"if\": \"road_class == MOTORWAY\", \"multiply_by\": \"0.0\" }]}\nsend_route({'profile':'car', 'points':[start,end], 'points_encoded':False, 'custom_model': custom_model, 'ch.disable': True})","execution_count":21,"outputs":[{"output_type":"stream","text":"distance: 14km, time: 18min\ndistance: 9km, time: 21min\n","name":"stdout"}]},{"metadata":{"trusted":true},"cell_type":"code","source":"","execution_count":null,"outputs":[]}],"metadata":{"kernelspec":{"name":"python3","display_name":"Python 3 (ipykernel)","language":"python"},"language_info":{"name":"python","version":"3.7.12","mimetype":"text/x-python","codemirror_mode":{"name":"ipython","version":3},"pygments_lexer":"ipython3","nbconvert_exporter":"python","file_extension":".py"}},"nbformat":4,"nbformat_minor":2}