Questions tagged [json]

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

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13 views

Getting a KML file from embedded Google map

I need to get the coordinates for the markers on this map at the website : https://www.evm.co.il/%D7%9E%D7%A4%D7%AA-%D7%A2%D7%9E%D7%93%D7%95%D7%AA-%D7%98%D7%A2%D7%99%D7%A0%D7%94-%D7%9C%D7%A8%D7%9B%D7%...
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Strange `path` data in ArcGIS JSON response

Our local government runs a MapServer with geo data about the county land, property parcels and such. They provide this data as a bulk download, but some layers are missing. I decided to extract a ...
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Loading JSON with image link and extents into ArcGIS Pro

One of the ways to get data from ArcGIS REST API in image format is this. https://services.twdb.texas.gov/arcgis/rest/services/Base/BaseLayerQueryService/MapServer/export?bbox=-11360770.018835%...
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Load GeoJSON file into GeoDjango database

I am trying to load a GeoJSON file into my database (django.contrib.gis.db.backends.postgis) without success. models.py class Node(models.Model): network = models.ForeignKey(RoadNetwork, ...
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Python: Converted JSON to GeoJSON format (rfc7946) is in Coordinate system WGS84 but has to be Lambert72

I have some code to convert a JSON object requested from an API to a GeoJSON object based on the standard rfc7946. You see the data requested from the API was not actually a GeoJSON formated so I had ...
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1answer
26 views

Show sensor node location in QGIS MapCanvas

I have a Postgres db storaging data from a mobile sensor node, and want to show the location in a QGIS MapCanvas. Data is in a column in a jsonb format (Location and temperature). I'm trying to use a ...
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36 views

How to identify correct key_on parameter from JSON file for Folium Choropeth

I'm trying to make a Folium Choropleth map. But I'm stuck for long time on completing it. My map shows boundaries correctly, even shows legend correctly but the map is not filled with choropleth ...
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LineString JSON load with timedimension

I am trying to load geojson data with timedimension plugin as shown here with difference I am loading line objects. This is what I did: var timeSeriesGeoJSON = { "features": [{ "...
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1answer
31 views

Defining zoom on tileset extents using CesiumJS

I work on windows 10 with Cesium 1.72. NodeJS and Cesium work well. I succeed in adding a tileset format3D tiles (Meshs + associated texture). However, I would like to define a zoom on my tileset ...
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Problems using the QGIS Db Manager and accessing a PostGIS file with a JSON field content to plot up JSON attribute content

Using the QGIS (Madiera) Db Manager window and accessing a PostGIS file to try and plot up some of the JSON file content on to an existing QGIS basemap. I am not a QGIS (or GIS) superuser! I have ...
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32 views

Web GIS with NetCDF data

I have NetCDF data and am trying to transform this into JSON, using Python, to then use in a web sig (NCWMS server). By transforming this into JSON, could I display this same data dynamically (with ...
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40 views

Choosing coordinate reference systems for esriGeometryPolygon in GeoPandas

I extracted a layer of parcel Geometry Type: esriGeometryPolygon and save as JSON, this is a fragment of one row of this JSON: { "attributes": { "OBJECTID": 171195, &...
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21 views

Return geocode information with Carto

I'm using the Carto API for a few functions and I'm looking for a way to return geocoded information similar to how Google does it here. With Google, you make a call with the Address like: https://...
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CSV with geometry column in JSON format to GeoDataFrame [duplicate]

I have a csv, that I want to open as a GPD, the problem is the geometry column "geo_shape" I want to convert that column to the proper geometry format, could you help me? The link to the ...
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56 views

GeoJSON Datastore and GeoServer

I found a way that should allow to use (Geo-)JSON flies with GeoServer: An unsupported GeoTools GeoJSON Datastore (thanks to this answer) Here is a link to the jar: https://mvnrepository.com/artifact/...
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Using large data JSON file in Leaflet markercluster [closed]

I want to show the JSON file consisting of many points on the map using the leaflet marker cluster plugin. My JSON file looks like: [ { "json_featuretype" : "Output", "...
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FME Desktop - json Extractor Transformer Error

I have a workbench which takes a JSON file and uses the following transformers to parse the data: JSONFragmenter, JSON Extractor and a vertex creator. I am getting warning errors in my translation log ...
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16 views

Find number of features in ArcGIS MapServer layer

Given an ArcGIS MapServer layer URL (eg https://gis.dallascityhall.com/wwwgis/rest/services/Sdc_public/Zoning/MapServer/15), how can I find (preferably in JSON format) the number of total features in ...
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74 views

Publish JSON with GeoServer

I generated a JSON by a PHP script and now want to load this JSON to GeoServer. So far I just found ways to publish SHP files but not JSON...
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21 views

Operations Dashboard Category Selector Zoom 'settings'

Is there code that sets Category Selector Zoom scales? I have my dashboard map's default scale set to just outside the boundary area of interest - in my case a large long N/S city. Within our city we ...
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39 views

Access coordinates from a firebase database

I want to access the coordinates from a firebase database in order to add them to my web map. The structure of the data looks like this, and there around 12,000 sets of coordinates. In my python ...
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1answer
57 views

Adding metadata from JSON file as text to QGIS print layout

I have a have a static URL pointing to a json file on the web that I load to QGIS. It is updated regularly. In the source, before listing the features, it contains metadata, between else a line "...
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1answer
38 views

Multiple Json files conversion to feature class using ArcPy

I am a beginner in Python. I am migrating from visual basic. I have multiple .json files that I want to convert them all in one script using python to a file Geodatabase: What is the issue in the ...
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41 views

GeoServer REST WorkspacesAPI.postWorkspaces call by a Swagger client fails: “CannotResolveClassException: name”. Unexpected JSON content received

Using GeoServer 2.18.2 REST API by a Swagger Java client generated from workspaces.yaml (taken from documentation page), I attempted to create a workspace through this small test code, under Spring ...
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33 views

Getting JSON data from Google Maps [duplicate]

I have reviewed Getting polygon boundaries of City in JSON from Google Maps API? as well as the answers by german_martin and Kamil Latosinski. There are two critical weaknesses in Nominatim, using ...
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34 views

How to get 'GetPropertyValue' result in JSON format in geoserver?

I have tried adding outputFormat = application/json but not working :( my URL looks like this http://domain/geoserver/wfs?service=wfs&version=1.3.0&request=GetPropertyValue&typeNames=...
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1answer
48 views

Converting ESRI JSON to GeoJSON

I am having trouble converting an ArcGIS Online JSON output to a more standard GeoJSON format. I have tried the solution in this thread, but the answer is either deprecated or no longer working. Every ...
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1answer
31 views

Delete points on the map to remain only one for each plane in OpenLayers

I'm trying to put on the map the route of an ads-b plane, I've managed this so far ... Poblema is as follows puts all the points since I started to intercept him until the end what is not correct ...
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1answer
59 views

Projection and transform lat,long coordinates in geo in OpenLayers

I am working on a project that from the ads-b data puts on the OpenLayers map the position of the intercepted planes .... I encounter 2 problems: The coordinates are in latitude and longitude and ...
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51 views

OpenLayers: Permanently scale-independent text labels (including zoom steps)

On an OpenLayers map, I'm using text labels derived from JSON features for annotation. The labels are relatively flexible and may be switched at certain zoom levels (like changing from country to city ...
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20 views

Variable road shield size determined from character length

In Maputnik / Mabox GL I am trying to display a shield around a road number, with the size of the shield determined from the length of the road number. I am basing this on a working example as follows ...
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1answer
42 views

PyQgis Show a HTML frame in canvas from a plugin button

I am using PyQGIS to request a JSON and showing some data of that file, formatted according with some conditions, in a window in QGIS using a button in a plugin. I have thought of using a HTML frame (...
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77 views

QGIS - connect to ArcGIS FeatureServer hosted behind Azure proxy

I am using the QGIS (v3.16.0) ArcGisFeatureServer tool in the Browser window to try and connect to the following ArcGIS Feature Server: https://gojdippmaps.azurewebsites.net/proxy.ashx?https://maps....
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68 views

Add altitude coordinates in Feature Collection then serialize to GeoJSON

I deserialized a GeoJSON file into a feature collection using GeoJson.Net. Then I get the feature from the feature collection. Inside the feature I can loop and get all the type of geometry. From ...
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44 views

Download ALL data for an area from OpenStreetMap

I am trying to download ALL the OpenStreetMap data for a certain region. Meaning, I want the roads, the stores, the rivers, the parks, the traffic signals, the bus stops, ... everything. I'm ...
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1answer
50 views

Overpass API JSON output cannot be read by QGIS

My steps: 1.) Query Overpass API and download the JSON output by this URL https://www.overpass-api.de/api/interpreter?data=[out:json];node[route=bus];way[route=bus];relation[route=bus](52.5,13.3,52.5,...
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1answer
230 views

Issue with osrmIsochrone function in R

I have been using osrm package for a while and didn't ever come across this kind of issue before. It looks so weird and I have been trying to update package and reinstall R as well. But nothing is ...
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42 views

Are there scenarios where the JSON payload from an AGOL webhook would have multiple collections in the array?

I have a webhook in AGOL that posts a JSON payload to an external system (Integromat). The webhook is triggered when features are edited in a feature layer (Change Types: FeaturesEdited). This is ...
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14 views

Setting same custom Icon marker for various JSON layers

I am attempting to set the same icon for three diferent JSON layers on a leaflet API map, but it does not show the requested image. Here's the code function popupwindow(feature,layer){layer....
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494 views

Uncaught Type Error: t.addLayer is not a function

I am trying to add a JSON file to my webmap in leaflet but I keep getting this error. I am calling an external js file and adding it as a variable to my map <!DOCTYPE html> <html> <head&...
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1answer
243 views

Applying JSON style from URL to Vector in OpenLayers

Can the style be a URL in OpenLayers? var layer_offline = new ol.layer.VectorTile({ declutter: true, source: new ol.source.VectorTile({ format: new ol.format.MVT(), url: 'http://...
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1answer
877 views

Leaflet map with D3.js dynamic graph from geojson data

I build a Leaflet map and display data from a GeoJSON. I add a Leaflet-Sidebar to my map, and embed the info control inside this sidebar. When a user hovering polygons on the map, raw values are ...
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1answer
86 views

Filter geometry based on map extent using OpenLayers

I need to summarize an attribute of a geojson based on the map extent. I want to sum values for all features intersecting bbox. I think that I must use the Bbox filter but isn't clear for me how I can ...
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1answer
74 views

Get attribute from multiple WMS sources

I'm using GeoServer and I need to put the value of NDVI from four different wms into a chart. I'm using also OpenLayer for my map. map.on('singleclick', function(evt) { var viewResolution = view....
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2answers
493 views

Converting (Polyline Data) JSON to GeoDataFrame using GeoPandas

I have this particular json and I want to make the JSON into a GeoDataFrame (with geometry and its attributes); How to set the geometry and attributes to a geodataframe? I have tried using geopandas....
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732 views

Display GeoJSON data on a Leaflet map with a Django app

I wan't to display GeoJSON data on a Leaflet map using Django. Data is from a PostgreSQL database, I have created a view with raw JSON which returns me data but I wan't to add this to a Leaflet map as ...
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1answer
122 views

QGIS not exporting JSON to GeoJSON format

My PostgreSQL/PostGIS table have a JSON column, how to export it as GeoJSON properties to QGIS? That is, I have a PostgreSQL connection at QGIS and it is reading all other tables, except this one that ...
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2answers
131 views

Select JSON records as an Excel table

I have an internal map service that serves up GIS records via JSON objects. For the purpose of this question, instead of using my internal/private data, we can use the JSON data on ESRI's public ...
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22 views

Concatenate from all the elements from a list of lists to have a string [duplicate]

I have data from a JSONs like as below data={'type': 'Feature', 'geometry': {'type': 'LineString', 'coordinates': [[410910.0885459831, 2479395.4132211693, 0.0], [410903.8088855865, 2479401.860380645,...
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0answers
81 views

How to export underlying vector layers from web map to QGIS?

The following map is using Leaflet https://www.openreach.com/fibre-broadband/fibre-first People need to use these layers in their QGIS. Is there a way to maybe load the layers from the same source ...

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