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The easiest way would probably be to implement the AND filter yourself using JavaScript. Probably something in the lines of: function applyAndFilter(val1, val2, val3) { layerGroupOnMap.clearLayers(); layerGroupReference.eachLayer(function (layer) { if (layer.prop1 === val1 && layer.prop2 === val2 && layer.prop3 === val3) { ...

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You can use the srsName= string to get the polyline from the WFS in lat/lon coordinates from the start. Alternatively, provided that you've read the coordinate strings into Python as arrays x and y, you can do import pyproj prj = pyproj.Proj(PROJ4_STRING) lon, lat = prj(x, y, inverse=True) where PROJ4_STRING is the libproj SRS string for the original ...

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I think that's what you are looking for: http://openlayers.org/

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For javascript you can use proj4.js. Its conversion function is called proj4.

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I see you found a solution with the ESRI grayscale map and I remember that development seed map it looked so good!! Just for anyone else that may come by this question I have found Snazzy maps www.snazzymaps.com to be an easy way to customize a google maps style. I couldn't quite get the same look as the dev seed map but I was to get something close I think ...

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The existing answers are out of date, since Esri now provide an easy method to set a grayscale basemap directly, as described at https://developers.arcgis.com/javascript/3/jsapi/map-amd.html#map1

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Here at Geocode.Farm, we have the boundary data stored and then use an algorithm that ties to create a square or circle (depending on shape of boundaries). The center is then calculated and that is what we use for the coordinates returned. Disclaimer: I work for Geocode Farm

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It sounds like you need to do one of two things: change your process to cache results if you don't get that many that are unique per day; or upgrade to a service that allows you to process more per day As people have mentioned many times, but I have no personal experience with, it would seem that a Google license for 100k per day is about \$10k USD per ...

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From http://www.qgistutorials.com/en/docs/using_gme_connector.html: Warning As of 29 January, 2015 Google Maps Engine has stopped creation of new free accounts. If you already have a Maps Engine account, the Google Maps Engine Connector will continue to work till 29 January, 2016. https://mapsengine.google.com/about/index.html has yet another discontinue ...

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