Questions tagged [json]
JavaScript Object Notation (JSON), is a lightweight, human-readable data interchange format.
464
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Merge several JSON files into one CSV file
I have about 37 nested JSON files. The keys and the values are same in all the files. My objective is to combine the data in all the files into a single CSV file so I can analyze the output . I have ...
- 41
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23
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Features to JSON not working (Conversion tools, .geojson, ArcMap)
I want to export a feature layer to GeoJSON, but in attempts thus far, when I open the exported file in an online GeoJSON map service like geojson.io/ my file doesn't map. Particularly, maximum map ...
- 141
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1
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18
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GeoServer JSON URL valid on browser, but not valid on Python `requests`
I go to my GeoServer URL as JSON and I can see the JSON file, but when I pass in to requests module. This is my Python code:
import requests
baseurl = "http://someserver.com/geoserver/workspace/...
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0
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16
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Merge separate polygons inside of a single JSON that do NOT share a boundary
I am trying to see if there is a way to merge/connect polygons that do not share a boundary with one another. As you can see from the imagine, these are two polygons that I'm looking to connect, if ...
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-1
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21
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Nested JSON to GeoJSON [duplicate]
I have JSON data from a URL. I would like to unnest the information and format as a GeoJSON but am unsure of how to handle the nested attributes. There are both points and lines in my data and the ...
- 49
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1
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57
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Converting nested JSON flight data into shapefile or similar
I am creating a visualisation/map of typical flight patterns over Los Angeles, California. I am interested not in live data, or even particularly recent data; rather, I am hoping to find a data set ...
- 11
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35
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Python bulk downloading issue
Here is my code to download the Landsat data.
from landsatxplore.api import API
import json
username = 'username'
password = 'password'
api = API(username, password)
...
- 11
0
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1
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24
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Meaning of this code for Mapbox layer styling
This is just a snippet of the code, but I'm trying to get a grasp on Mapbox interpolate/zoom syntax.
"layerStyle": [
{
"type": "line",...
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41
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How do I add a label to a fill layer using Mapbox?
I have a layer of jurisdictions, and am trying to label them at a certain extent (about 1:750000) but I can't get labels to show up at all. I've got the following code:
"layerStyle": [
...
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1
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20
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Open ArcGIS Map Service tile layer in QGIS
I am trying to open this tile layer (https://www.arcgis.com/home/item.html?id=aa6ba39647df4bd4a58e3e06c8386b30) in QGIS.
I know it is possible to connect to ArcGIS Map Service layers but when I use ...
-1
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1
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195
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Convert list of XY-coordinates into GeoJSON/Polygon geometry [closed]
From API-responce I get a long list of XY-coordinates of vertices where each coordinate is separated by comma. How can I transform this list into GeoJSON/Polygon geometry?
,"shape":[52....
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1
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30
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Can't edit certain multilinestring lines of my GeoJSON file with GeoPandas
I'm using GeoPandas, Python 3.7.
My job would be to edit a GeoJSON file, which contains reference lines, which are off by 30 centimeters + on the x axis.
My file looks like this:
I have to move the ...
- 1
0
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0
answers
24
views
Mixing JSON and GeoJSON in a Django answer
I want to retrieve two separate GeoJSON created from a PostGIS database with Django as well as some valuable information. Here is an example of what I would like to send back to the front end :
...
- 374
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10
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map icon attribute popups
I have a code that plots points on a map for an Json file. I would like to have a pop up menu with some of the other attibutes in the json file when icon is clicked. I tried several examples but can ...
3
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2
answers
527
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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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1
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112
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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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2
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210
views
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 ...
- 1,253
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0
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59
views
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 ')...
- 61
2
votes
1
answer
36
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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
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1
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34
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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": "...
- 275
3
votes
1
answer
162
views
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" : { "...
- 163
6
votes
3
answers
480
views
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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2
votes
1
answer
118
views
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:
-------------...
- 918
1
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2
answers
54
views
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 ...
- 165
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1
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399
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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 ...
- 65
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0
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38
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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 ...
2
votes
1
answer
239
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. ...
- 1,465
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346
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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 ...
- 31
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61
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Connecting GeoJSON and TIFF image for deep learning
I have GeoJSON coord:
{
"type":"FeatureCollection",
"features":[{
"type":"Feature",
"geometry":{"type":"...
1
vote
0
answers
38
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 :...
- 1,169
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84
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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 ...
0
votes
1
answer
194
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 ...
- 1,015
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1
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182
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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, ...
- 1,396
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248
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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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votes
2
answers
63
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 ...
- 275
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1
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651
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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473
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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 ...
- 355
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votes
2
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128
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.
...
- 226
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1
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81
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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257
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:
'[{ "...
- 6,993
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0
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28
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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 ...
- 101
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30
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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%...
- 1,527
2
votes
0
answers
276
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, ...
- 193
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2
answers
570
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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 ...
- 867
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40
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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 ...
0
votes
1
answer
1k
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 ...
3
votes
1
answer
239
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 ...
- 731
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86
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 ...
- 63
0
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0
answers
620
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 ...
0
votes
0
answers
144
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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