JavaScript Object Notation (JSON), is a lightweight, human-readable data interchange format.

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24
votes
9answers
19k views

How to convert ArcGIS Server JSON to GeoJSON?

I'm creating a web map using Leaflet, and I want to be able to grab feature layers from our ArcServer. I have successfully been able to retrieve a feature class as JSON, but Esri's JSON objects don't ...
7
votes
2answers
5k views

How to send long JSON objects (polygon geometry, table rows) in POST request to Geoprocessing Service?

I am seeking to understand my options for sending long JSON objects in a request to a Geoprocessing Service. In particular, I am looking for some example code to illustrate how to include two long ...
13
votes
1answer
6k views

How to display geoJSON from an URL in a layer?

I am looking for some type of plugin or code which would allow me to add a geojson URL, define the areas to input the lat/long variables from the visible Qgis canvas map and call/render the results ...
2
votes
2answers
1k views

export map state as JSON: Web_Map_as_JSON

Is there a way to export the current map state as a JSON object, mostly named Web_Map_as_JSON. The JSON specification should be like this. In other words, it would be convenient to have a function ...
1
vote
2answers
4k views

How to plot geo-data using matplotlib/python

I am trying to plot a polygone on python, using different libararies, but no one of these worked with me. I tried vincent ,Shapely , .. and now matplotlib. I don't wanna use softwares like qgis I ...
14
votes
1answer
2k views

What is topojson and how is it different than geojson?

This is a conceptual question. What are the differences between these? and what are the pros and cons of these formats?
6
votes
2answers
7k views

GeoJSON java library

I am creating a Java web service that receives GeoJSON. Does anyone know a java library to manage GeoJSON?
1
vote
2answers
3k views

Convert spatial Geographic data from sql server 2008 to Json

Is there any example to convert spatial data (point,line,polygon) stored as geographic in sql server 2008 into Json and display data using Arcgis Javascript Api 3.0.I have tried converting geographic ...
14
votes
2answers
3k views

How can I fix my complex Polygons so they show correctly in Google Maps?

Problem: I'm trying to find a way to fix some broken polygon shapes and I'm not sure how I can do this. Details: I've got a number of polygons which I basically imported from TIGERLINES a while ...
3
votes
1answer
132 views

Is there are way to import non-geo JSON files into QGIS?

Here is a json file containing various attributes relating to countries. However, it does not contain any geographic data. http://bost.ocks.org/mike/nations/nations.json I would like to join these ...
3
votes
2answers
1k views

How can I deserialize json to create an IRecordset?

I've got a Silverlight client that serializes a FeatureSet and sends to an SOE. I'd like for the SOE to deserialize the json into an IRecordSet. ESRI.ArcGIS.SOESupport.Conversion has a method for ...
3
votes
1answer
1k views

JSON URL won't open in QGIS

When attempting to display the national chargepoint registry from the following URL: http://chargepoints.dft.gov.uk/api/retrieve/registry/format/json The following error returns: http://...
2
votes
2answers
815 views

RESTful Geoprocessing Service Request returns empty Result object without errors

This is a bit difficult for anyone here to test as our ArcGIS Server 10.2 instance is behind a firewall. I'll try to present all the necessary information, but feel free to ask for more and I'll ...
2
votes
0answers
2k views

Geoserver WFS get feature doesn't work - “SyntaxError: missing ; before statement”

I'm trying to use geoserver WFS json for creating vector layer (instead of using WMS) because this is a layer I redraw every 20 seconds. This is the code I use : function getJSON() { var ...
2
votes
1answer
1k views

How to apply weight to Google heatmap?

I am trying to plot a Google heatmap based on the JSON objects returned. Here is my JavaScript: function getHeatMap() { heatLayer = new HeatmapLayer({ config: { "useLocalMaximum": true, "...
2
votes
2answers
1k views

How to Merge/Join GeoJSON and JSON?

I want OSM administrative boundaries from http://global.mapit.mysociety.org/area/14455.html. I can get the geodata in different formats there, but the attribute data always is a separate JSON file. I ...
1
vote
3answers
2k views

Load external tileJSON file in Mapbox

I have tiles generated by Maperitive from an OSM file, and there's a nice tiles.json generated with them which specifies neatly the tiles-path, bounding box, minzoom, maxzoom, center, etc. The format ...
0
votes
2answers
2k views

How can I add attributes contained in JSON data to an OpenLayers popup?

I am working on a website using jQuery, Javascript, and OpenLayers. I am adding markers to an OpenLayers Vector layer using the following code: var pointLayer = new OpenLayers.Layer.Vector("POI ...
0
votes
1answer
530 views

How to add multiple OpenLayers Vector Layer markers with data parsed from JSON file

I would like to parse a local JSON file and add markers to a map based on the latitude and longitude parsed from the JSON file. Here is a sample from the local JSON file: "LOCATION_A": { ...
-2
votes
1answer
584 views

“Open Source Routing Machine” querying and parsing

What I have in Python: import requests url_osrm = 'http://router.project-osrm.org/viaroute?loc=50.12345,8.12345&loc=50.23456,8.23456' print url_osrm proxies = {"http": "http://YOUR-PROXY:8080"} ...