[GIS] How to visualize pgRouting layer in leaflet

leafletpgrouting

I have completed all the queries of the of pgRouting tutorial by Underdark where visualization was done with the help of RT SQL Layer Plugin. As I am using Windows OS I have no access of that tool. That is why I was unable to visualize the resultant layer of Shortest_path. If there any way to visualize this resultant layer through leaflet API it will be very helpful.

Thanks in advance.

Best Answer

Review stage:

QGIS with PostGIS Manager and RT Sql Layer plugins

Since you're on Windows you can simply install QGIS via OSGeo4WIn.

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[GIS] leaflet-omnivore style function

Read the documentation of Leaflet-omnivore here: https://github.com/mapbox/leaflet-omnivore You can pass a custom layer as a third parameter of omnivore.topojson(). By default, it is simply L.geoJson(). In your case, you should use something like this:

var customLayer = L.geoJson(null, {style: style});
omnivore.topojson('./data/bmw_parcels_4326.json', null, customLayer).addTo(map);

The other option is L.GeoJSON.setStyle(style) function called on your omnivore layer:

var layer = omnivore.topojson('./data/bmw_parcels_4326.json');
layer.setStyle(style);
layer.addTo(map);

Not tested, hope this helps.

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Note that in the case of Leaflet.draw plugin, it will make editable only the layers that are provided in the Feature Group specified in edit.featureGroup option.

So you would probably just need to populate that Feature Group with the only layer(s) that you want your user to be able to edit.

Best Answer

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