geojson

问题 My map's source file is GeoJSON, but it is very large and very slow. Is there a way to convert this to vector tiles on the fly using MapBox GL JS? (Load the GeoJSON, pre-process the file into vector tiles, and show use the vector tiles as the base map.) It seems that vector tiles are much faster. I've tried all the GeoJSON-VT tutorials and examples that I could, like the one on MapBox's site, but it just says that GeoJSON-VT works under the hood, so it isn't much help. The others mostly apply

问题 My map's source file is GeoJSON, but it is very large and very slow. Is there a way to convert this to vector tiles on the fly using MapBox GL JS? (Load the GeoJSON, pre-process the file into vector tiles, and show use the vector tiles as the base map.) It seems that vector tiles are much faster. I've tried all the GeoJSON-VT tutorials and examples that I could, like the one on MapBox's site, but it just says that GeoJSON-VT works under the hood, so it isn't much help. The others mostly apply

问题 My map's source file is GeoJSON, but it is very large and very slow. Is there a way to convert this to vector tiles on the fly using MapBox GL JS? (Load the GeoJSON, pre-process the file into vector tiles, and show use the vector tiles as the base map.) It seems that vector tiles are much faster. I've tried all the GeoJSON-VT tutorials and examples that I could, like the one on MapBox's site, but it just says that GeoJSON-VT works under the hood, so it isn't much help. The others mostly apply

问题 My map's source file is GeoJSON, but it is very large and very slow. Is there a way to convert this to vector tiles on the fly using MapBox GL JS? (Load the GeoJSON, pre-process the file into vector tiles, and show use the vector tiles as the base map.) It seems that vector tiles are much faster. I've tried all the GeoJSON-VT tutorials and examples that I could, like the one on MapBox's site, but it just says that GeoJSON-VT works under the hood, so it isn't much help. The others mostly apply

问题 I'm trying to make use of some geolocation functionality in mongodb. Using a find query with $near doesn't seem to work! I currently have this object in my database: { "Username": "Deano", "_id": { "$oid": "533f0b722ad3a8d39b6213c3" }, "location": { "type": "Point", "coordinates": [ 51.50998, -0.1337 ] } } I have the following index set up as well: { "v": 1, "key": { "location": "2dsphere" }, "ns": "heroku_app23672911.catchmerequests", "name": "location_2dsphere", "background": true } When I

问题 The code belonging to this question is available on github. I've written a script that parses addresses from a csv file, queries the corresponding coordinates (longitude and latitude) using geopy and writes the output to a text file in the JSON format. The print statement that writes the data into a JSON file is not beautiful: print('{"type": "Feature","geometry": { "coordinates": ['+str(location.longitude)+ ','+str(location.latitude)+ ',],"type": "Point"},"properties": {"title": "dentist #1"

问题 The code belonging to this question is available on github. I've written a script that parses addresses from a csv file, queries the corresponding coordinates (longitude and latitude) using geopy and writes the output to a text file in the JSON format. The print statement that writes the data into a JSON file is not beautiful: print('{"type": "Feature","geometry": { "coordinates": ['+str(location.longitude)+ ','+str(location.latitude)+ ',],"type": "Point"},"properties": {"title": "dentist #1"

问题 I would like to do this in the Leaflet! I have a GeoJSON file with these data: "type": "Feature", "geometry": { "type": "MultiPoint", "coordinates": [ [ -123.77252789, 44.37857221 ], [ -123.77317087, 44.37864694 ], [ -123.77383407, 44.37875853 ] ] }, "properties": { "title" : "tillicum", "path_options" : { "color" : "red" }, "time": [ 1580403952000, 1580403990000, 1580404202000 ], "speed": [ 85, 88, 90 ], "altitude": [ 29, 50, 69 ], "heading": [ 0, 0, 0 ], "horizontal_accuracy": [ 87, 79, 59

问题 For geojson type file named data as follows: { "type": "FeatureCollection", "name": "entities", "features": [{ "type": "Feature", "properties": { "Layer": "0", "SubClasses": "AcDbEntity:AcDbPolyline", "EntityHandle": "1A0" }, "geometry": { "type": "LineString", "coordinates": [ [3220.136443006845184, 3001.530372177397112], [3847.34171007254281, 3000.86074447018018], [3847.34171007254281, 2785.240077064262096], [3260.34191304818205, 2785.240077064262096], [3260.34191304818205, 2795

问题 I am trying the following: After downloading http://eric.clst.org/assets/wiki/uploads/Stuff/gz_2010_us_050_00_20m.json In [2]: import geopandas In [3]: geopandas.read_file('./gz_2010_us_050_00_20m.json') --------------------------------------------------------------------------- TypeError Traceback (most recent call last) <ipython-input-3-83a1d4a0fc1f> in <module> ----> 1 geopandas.read_file('./gz_2010_us_050_00_20m.json') ~/miniconda3/envs/ml3/lib/python3.6/site-packages/geopandas/io/file.py