Questions tagged [json]

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

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Loading JSON data into QGIS

How do you load data like this into QGIS? { "href": "https://mapservices.crd.bc.ca/arcgis/rest/directories/arcgisoutput/Basemap/Basemap_MapServer/...
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Select SDE.ST_GEOMETRY as JSON text (using SQL)

I have a multipart M-enabled SDE.ST_GEOMETRY polyline FC (in an Oracle 18c EGDB): Using SQL, I want to select the geometry as JSON text: {"hasM":true,"paths":[[[0,5,0],[10,10,11....
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reading geometries from a web service in python

I have some code that connects to a gis server, esr rest service, and returns the geometries of the features on that layer. I can pick html, json, geojson, kmz, and pdf as returns and I can export the ...
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1 vote
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Convert JSON URL to GeoJSON in QGIS 3.10 Coruna [closed]

I am using Python in QGIS 3.10 to convert a JSON URL into a GeoJSON. Here is the first part of the code : import requests r = requests.get(' http://environment.data.gov.uk/flood-monitoring/id/floods ')...
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1 answer
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How to fix QGIS fills inner contours of buildings

I have a .json file with building contours. I have enabled contour filling in QGIS to highlight the buildings. And for some reason, QGIS filled the courtyards of the buildings. Please tell me how can ...
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1 answer
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Import line delimited geojson to single column

Given a large file of line delimited geojson: { "type": "FeatureCollection", "name": "kitten_locations", "features": [ { "type": "...
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  • 275
3 votes
1 answer
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GeoJSON will load from variable, but not from file in OpenLayers

I'm trying to add a point to my open layers map from a file. To start with I loaded the json data from a variable. var data = '{ "type": "Feature", "geometry" : { "...
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  • 143
6 votes
3 answers
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Import unknown text polygon format to QGIS

I'm trying to visualize this park in the DRC. Thinking it was a WKT polygon, I isolated one shape as a test and saved it as a CSV. Here {"attributes":{"OBJECTID":27,"NOM":...
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  • 81
2 votes
1 answer
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Field Calculator to get JSON text

In ArcMap 10.7.1 (with an Oracle 18c SDE.ST_GEOMETRY polyline FC): I want to use the Field Calculator (Python) in the Attribute Table to get a feature's JSON text. Pre-Logic Script Code: -------------...
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JSON data response

I need to obtain point features for UNESCO sites of italy in JSON format using :-UNESCO POIs (OGC API): https://demo.pygeoapi.io/master/collections/unesco_pois_italy. But unfortunately I am not able ...
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  • 69
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1 answer
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Convert JSON to GeoDataFrame and append both geometry and filename

I am currently running an experiment on automating a task by merging information from various file types and doing a number of operations to achieve this. Currently, I am reading a list of GeoJSONs ...
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How to run and export zonal statistics for each feature of a Feature Collection in Google Earth Engine?

I'm building a JS script in GoogleEarthEngine. I am automating the code for many year to get a vegetation index (Enhanced Vegetation Index (EVI)) for each year. (code here). I'm trying to get for each ...
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1 vote
1 answer
102 views

Updated JSON not showing up in feature layer properties on ArcGIS Online

I wrote a script that will automate the overwrite feature layer process using a map object in ArcGIS Pro. When changes are made to the underlying data they show up on AGOL after running the script. ...
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1 vote
1 answer
178 views

Importing JSON data from Internet directly to QGIS [closed]

I need to download and import data from a web like this Berufsauspendler to QGIS, but with Python Console in QGIS. After that I need to store this Data in my computer. I don't have much experience ...
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0 answers
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Connecting GeoJSON and TIFF image for deep learning

I have GeoJSON coord: { "type":"FeatureCollection", "features":[{ "type":"Feature", "geometry":{"type":"...
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1 vote
0 answers
27 views

How to run topojson from Powershell?

I have already installed node.js and used it to install topojson via npm install topojson. But when I run command like topojson input.geojson -o output.topojson, I get the familiar error of topojson :...
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How to convert style.json to Mapnik XML

I need to convert a style with JSON format to Stylesheet XML (in Mapnik). is it a way that I can do that? I want to create a custom style map and render it from the OSM (OpenStreetMap) server using ...
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1 answer
109 views

Keep same ID when copying webmap / web app map from ArcGIS Portal to another one

Webmaps are shared with an URL containing the ID. Example: https://portal.com/portal/home/item.html?**id=8207f51d0c3d4b4193950beb2dcd21d4** When a webmap configuration is replaced by another, for ...
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1 answer
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Styling GeoJSON polygons with hatch fill in MapFish Print

I am working with MapFish Print (v3.23.1) and have a mix of layers for a map, some from GeoServer and some local GeoJSON files. I have GeoJSON polygons that I would like to apply a hatch pattern to, ...
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0 answers
124 views

Mapshaper exporting to .json not .geoJSON

For my Mapbox maps, I am trying to simplify my .geoJSON linestrings using Mapshaper prior to importing into Mapbox Dataset Editor. My problem is when I export from Mapshaper, despite selecting Export -...
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2 answers
39 views

ArcGIS - Retrieve all data from REST service in GeoJSON format

The great state of Vermont publishes a number of datasets in ArcGIS: https://maps.vcgi.vermont.gov/arcgis/rest/services/EGC_services/OPENDATA_VCGI_UTILITIES_SP_NOCACHE_v1/MapServer I can create a ...
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  • 275
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0 answers
47 views

Accessing other Properties of GeoJSON Collection for Binding Details to Popup

I have a GeoJSON collection of coordinates and other properties. I want it so that when each popup is clicked on the map it will show the relevant properties to that marker. I have checked answers to: ...
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1 vote
1 answer
152 views

Creating shapefile from JSON file in Python

I would like to create a polygon shapefile from this output in Jupiter. I can't use ArcPy. Is there any other way? {'polygon': 'MULTIPOLYGON (((15.0512620 37.463320, 15.0512620 37.4743620, 15.0732421 ...
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  • 33
0 votes
1 answer
337 views

How to get around JSON Decode error while retrieving token from arcgis rest server?

I'm trying to create a script that lets a user check for non-nullable fields in all feature classes in all feature services published to a server. However, I'm running into an issue with just the ...
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0 votes
0 answers
88 views

GEE: How can I create error matrices from a large list of feature collections?

I have a list of feature collections, from which I want to produce error matrices. If I select one FC and create an error matrix I have no issue. If I use map to create 3 or 4, it usually works. If I ...
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1 vote
2 answers
94 views

Geometries are exported wrongly from PostGIS to Mapbox

I am trying to export some features for UK from PostGIS to Mapbox, in PostGIS seems that geometries and everything is correct but when I upload the layer to Mapbox it appear with weird geometries. ...
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  • 308
2 votes
1 answer
52 views

Tippecanoe throw several errors

I am trying to create a mbtile by using tippecanoe joining few *.json files: tippecanoe --read-parallel -o name_of_dataset.mbtiles --minimum-zoom=13 --maximum-zoom=16 -l name_of_layer /path/to/where/...
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  • 308
1 vote
1 answer
203 views

QGIS label expression to print "key:value" from a list of dictionaries (coming from an http vector source) in the print layout

Context In a QGIS 3.16 project, I have a vector data source defined as a connection to a REST API (Python backend): From the /authors endpoint of the API, I fetch this nested JSON object: '[{ "...
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  • 6,698
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0 answers
26 views

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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  • 101
1 vote
0 answers
26 views

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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  • 1,385
2 votes
0 answers
181 views

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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  • 195
0 votes
1 answer
364 views

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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0 votes
1 answer
38 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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0 votes
1 answer
991 views

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

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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3 votes
1 answer
122 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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  • 713
0 votes
0 answers
63 views

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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0 votes
0 answers
410 views

Transforming NetCDF into JSON using Python for dynamic display (with movement) using JavaScript

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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0 votes
0 answers
118 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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0 votes
1 answer
33 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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0 votes
2 answers
272 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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  • 67
0 votes
1 answer
120 views

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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  • 63
0 votes
1 answer
106 views

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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  • 77
0 votes
1 answer
42 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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1 vote
1 answer
308 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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1 vote
0 answers
50 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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  • 313
2 votes
1 answer
193 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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  • 40k
1 vote
1 answer
127 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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1 vote
0 answers
144 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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  • 204
1 vote
0 answers
65 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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  • 111
1 vote
1 answer
147 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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