GeoJSON is a geospatial data interchange format based on JavaScript Object Notation (JSON)

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How to insert new data points into CartoDB map?

I'm using NASA api data to populate my database in CartoDB's website to load places where meteorites have fallen. In JavaScript I'm currently creating a specific collection of meteorites I want to ...
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1answer
329 views

geopandas: can't save geojson

My task is to upload geojson, add data from corresponding csv, drop some columns, then save it back to geojson. However, after I did everything, added csv data (gj.join(df) ), etc, I can't save it ...
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38 views

Clipping GeoTIFF file by GeoJSON?

What is the best way to clip geotiff file by geojson? 1) Make a OGR file (e.g. shapefile) .shp from .geofile like this: { "type": "Feature", "properties": { "id": 1 }, "geometry": { "...
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1answer
293 views

Geoserver 2.5.2 upgrade - now GeoJSON and GML WFS not working

I've recently migrated Geoserver from a Geoserver 2.1 to a clean install of Geoserver 2.5 and copied across my data files. However, I'm not finding that clicking Layer Preview, going to the All ...
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2answers
1k views

How can we generate GeoJSON from SQL data with latlong

Is there any way we can create GeoJSON from SQL server table with Latitude & Longitude Data?
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1answer
32 views

Getting polygons out of multi-polygon GeoJSON files?

I am a farmer and very new to GIS. I am trying to load shapefiles or KML files to an online site/service called FarmLogs.com. Once my "fields" are uploaded the site can tell me the amount of ...
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1answer
55 views

Rotate geojson feature with Leaflet

I have a GeoJson feature that is rendered with leaflet and proj4(ESPG:31467). Now I want to rotate that feature so that it NW corner points to NE, e.g. 90 deg rotation. Is there a way to do this? Or ...
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1answer
34 views

GDAL python cut geotiff image with geojson file

I wrote the function which cutting geotiff image by bounding box. First image is original. At second you can see result off my code. I don't use gdalwarp or any console utilities. But I have no idea ...
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12 views

Mapbox JS get geojson and echo to a div

I have a mysql table with geo data (id, lat, lon, speed, ...). I am using this php to parse to geojson (json.php in my case): <?php header('Content-type: text/plain'); $username = "[user]"; $...
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1answer
17 views

Where to get world-wide detailed administrative boundaries?

I'm looking to build a world map that plots all application users and their locations around the world. The initial zoomed out world view would show total numbers clustered by country, then when you ...
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1answer
1k views

How do I add elevation data to a GeoJSON line from a GPX file?

I understand that elevation can be added as an optional third value in Coordinates (lat, long, elev) in a geojson file, but I can't find a way to actually do that from a gpx file. I've used ogr2ogr to ...
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50 views

Getting uploaded shapefile into geometry field on PostGIS table?

I am working with a PHP web application where we have a user submitting a ShapeFile. I am able to convert that ShapeFile then to a format of geojson. What I am wondering now is how I can best ...
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23 views

Creating Google Maps Polygon from Data Object Using getFeatureById

First post here, so forgive me if I put a few things in the wrong place. I am trying to do a Google Maps search for places inside an arbitrary region loaded into a Data object loaded via GeoJSON file,...
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1answer
23 views

Issue in loading external geojson file into leaflet map?

I want to load an external geojson file into leaflet map. I created a global variable (i.e. tracts) for json file and referenced this variable in the script file. But i receive an error message that ...
4
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2answers
1k views

Offline Phonegap/Openlayers App

I have a mobile app that uses Phonegap with OpenLayers and Geoserver. Now, I need to make the app available completely offline. The amount of data points can get very large depending on what client is ...
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0answers
21 views

CartoDB.js/Leaflet map - how can I click between multipolygons cleanly?

Here's my map: https://jsfiddle.net/Sidders/4exf969e/3/ I want to apply a click and hover effect to the polygons. So a polygon/multipolygon highlights on hover, and is selected with one click. The ...
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0answers
9 views

Error when creating spatial index in MongoDB

I am wanting to use MongoDB for some basic spatial calculations (on some fairly large data), but I get an error when trying to create an index on the US Counties shapefile retrieved from the US Census'...
3
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1answer
35 views

Sync GeoJson to cartoDB?

Is there a way to sync GeoJSON files to my cartoDB table? If this is not yet supported, what would be the best way of implementing this feature (syncing the data frequently with the existing cartoDB ...
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68 views

Using ogr2ogr in python?

I found this helpful post that got me started using ogr2ogr in python: Using ogr2ogr to convert GML to shapefile in Python? as well as this one: How to convert ArcGIS Server JSON to GeoJSON? I am ...
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2answers
532 views

Reading in local GeoJSON file for OpenLayers

I am kinda new to OpenLayers and not (yet) very experienced in JavaScript. I have a WordPress blog and I want to replicate and adjust the following script to my needs: http://jsfiddle.net/eqsrnjos/1/ ...
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1answer
384 views

OpenLayers 3 GeoJSON not loading

I am having trouble loading a GeoJSON layer (below is my defintion). Everything works fine when I read the file locally in a web browser, e.g. file:///Z:/inetpub/wwwroot/bang.html. However, when I try ...
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2answers
125 views

Problem loading GeoJSON file on geojson.io

I am newbie in GeoJSON file. I am having difficulty to load my GeoJSON file on geojson.io. Here is my GeoJSON file : https://gist.github.com/anonymous/0abb8f926977d577b52d. The source file is from : ...
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0answers
23 views

QGIS: Edit attribute values of GeoJSON file: toggle editing greyed out [duplicate]

I'm trying to edit the values of attributes in QGIS, but it does not work. I tried to google an answer, but couldn't find anything so far. This is what I'm doing: Open QGIS. Drag in a GeoJSON file. ...
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1answer
76 views

Cannot open this GeoJSON in QGIS 2.10

I have this home made GeoJSON: {"type": "FeatureCollection", "features": [{"geometry": {"type": "MultiPolygon", "coordinates": [[[[2.28313, 48.84024], [2.28297, 48.84011], [2.28282, 48.83993], [2....
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1answer
111 views

Loading GeoJSON into QGIS

I am a beginner with QGIS. I am trying to learn it through lynda.com. I have tried downloading the nanaimo crime map in GeoJSON format, but I get a message saying that the data source is invalid. I ...
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2answers
633 views

Printing possible for openlayers GeoJson WFS with Mapfish printing service and wkhtmltopdf?

I searched lots of places but I couldn't find proper examples or documentation to do printing using Mapfish Printing service or Wkhtmltopdf. My application has a few WFS layers from openlayers and ...
2
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1answer
394 views

Using Extjs 5 & OpenLayers 3

To consume geojson data from a REST HAL CORS webservice, in client side i'm using ExtJs 5, but to map data having geometries i'm stuck between choosing geoExt2 which has a branch based on extjs5 and ...
0
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1answer
206 views

OpenLayers not displaying GeoJSON layer with features added after the fact

I have a vector layer with a GeoJSON source layer. OpenLayers isn't showing the layer when I try to add features using the addFeatures method: myGeoJSONObject = { /* some GeoJSON */ }; editLayer =...
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1answer
215 views

Parsing large GeoJson geometry to WKT

I'm reading a very large json file as an InputStream in Android with JsonReader. This json has a geometry object like so.. "geometry":{ "type":"MultiPolygon", "coordinates":[ ...
0
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1answer
719 views

Read GeoJSON with openlayers

I generated a GeoJSON from a table in EPSG:WGS84 in postgis SELECT ST_AsGeoJSON(geom) FROM "onibus" I put this file into the www folder on my server. I'm running geoserver locally. My pages are ...
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1answer
151 views

Using GEOJSON offline in QGIS

I have some GEOJSON-Layers in my QGIS-project. The problem is, that when I zoom in or out, it takes very long to built up the window again. That's because it always loads it from the server. But I don'...
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2answers
279 views

Leaflet and census block data: not displaying

I am new to leaflet and am trying to load a geojson file showing census blocks and associated information for a city in CA. It is a small city and not too many census blocks. I cannot get the popup ...
2
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1answer
427 views

Routing api help (MapBox or similar)

i have a geoJSON objects and i want to route between waypoints on my geoJSON file. this is my example geojson file. { "type":"FeatureCollection", "generator":"JOSM", "bbox":[ 23....
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1answer
208 views

Leaflet GeoJSON style function feature only colors one GeoJSON feature

I need to style every feature differently that I pull from a GeoJSON file. However this anonymous style function only changes the style on the first feature it comes across and stops. I am new to ...
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15 views

Esri Shapefile to KML with gdal resulting in “too_big” in altitude value

I'm needing to automate the conversion of .shp files into something more user-friendly like GeoJSON and KML. The conversion to GeoJSON seems to work okay with this command: ogr2ogr -f GeoJSON -t_srs ...
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2answers
80 views

GML to GeoJSON JavaScript parser

Is there a JavaScript parser to obtain GeoJSON from GML? I have found only Python and OGR solutions.
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1answer
26 views

Is there a way to export and import again all Map at once?

I have a OpenLayer3 map with some arbitrary layers I can choose at runtime. Layers may come from external WMS services or internal PostgreSQL GIS tables or even from drawn features. Now, I need a way ...
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2answers
588 views

Polygon intersection with bounding box with polygon's holes intact

I am trying to serve GeoJSON FeatureCollection tiles with each feature's geometries trimmed to the tile boundary. I am working on a Leaflet plugin to re-assemble the geometries. It works by building ...
0
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1answer
277 views

Convert Leaflet WMS layer to Leaflet GeoJSON layer

Using the Leaflet API I am adding a WMS layer through the L.tilelayer.WMS feature. This feature includes only a certain amount of options such as 'layers','crs','style' etc. Through the Leaflet ...
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1answer
236 views

Openlayers 3.5.0: Problems with GeoJSON in IE11

I seem to have a problem with loading a geojson-file as source for a layer in IE11 using openlayers 3.5.0. IE11 throws an error without any description. The problem seems to occur when the geojson is ...
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2answers
85 views

How to store a vector layer as a geojson file in openlayers 3?

I have some vector layers that I import from geojson files and run some search on them, I want to display only the results of the search as a vector layer. I am using a jquery form to search, and I ...
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1answer
233 views

Is there any method to retrieve SQL queries into a GeoJSON file using JSP?

I want to display the contents of my PostGIS database of various shape-files in leaflet pop-up dynamically. I know there are static methods available that retrieves attributes. But I need to by ...
3
votes
1answer
44 views

How to Pass geojson array to datatable dyanamically using javascript

I want to pass one geojson file to dynamically created datatable using javascript,I am unable to identify column names in file.. I have tried this.. <body> <table id="example" class="...
10
votes
1answer
913 views

How to add an attribution on a GeoJSON Layer from Leaflet?

I need to use a GeoJSON Layer on my Leaflet map. Here is a sample of my code: function onEachFeature(feature, layer) { if (feature.properties && feature.properties.popupContent) { ...
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1answer
38 views

Writing geoJson from rasterstats

How would I write a proper geoJson, readable by a GIS, from the results of the rasterstats package? stats = zonal_stats("somePolygons.shp", "someTif.tif", ...
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1answer
289 views

How to filter polygons in Leaflet using range slider

I have a map I'm working on with Leaflet that displays a choropleth of zip code-level data. One piece of functionality I would like to add is to allow users to use a range slider to filter out ...
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0answers
18 views

Get residential coordinates by zip and crid_id

I have information about residentials from USPS (zip code, crid_id, etc.). I need to get coordinates of polygon that will wrap every residential (crid_id) in special are (zip code) Data example: http:...
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1answer
298 views

How to draw a rectangle on a Leaflet map from GeoJSON data

I am trying to draw a rectangle on a Leaflet map with JSON data which looks like this. var geojsonfeatures = {"type":"FeatureCollection","features":[ {"type":"Feature", "geometry":{"...
0
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1answer
102 views

How do I store GeoJSON format in Firebase so it can be used for Leaflet GeoJSON

I am new with Firebase, Leaflet, and GeoJSON .. I have a question, how to store data with GeoJSON format in Firebase, so it can be retrieved and used for leaflets GeoJSON to display marker(s). I know ...