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`.geojson` Data Support

See original GitHub issue

Is it possible to load a .geojson file, without first converting it to topojson, as data for vega lite? Many public datasets come in geojson formats and not topojson formats, so analyzing them would be easier if this was supported.

Issue Analytics

State:
Created 6 years ago
Reactions:1
Comments:7 (3 by maintainers)

Top GitHub Comments

4reactions

jheercommented, Feb 22, 2018

The TotalAssessment field is nested within the properties object. Here is a modified spec that works for me:

{
  "$schema": "https://vega.github.io/schema/vega-lite/v2.1.json",
  "width": 500,
  "height": 300,
  "data": {
    "url": "https://maps-amherstma.opendata.arcgis.com/datasets/d887750c3b4a40c09e753642988e7aee_0.geojson",
    "format": {
      "property": "features"
    }
  },
  "mark": "geoshape",
  "encoding": {
    "color": {
      "field": "properties.TotalAssessment",
      "type": "quantitative"
    }
  }
}

1reaction

daveliepmanncommented, Mar 3, 2020

This tripped me up too. It would be great if “how to access GeoJSON properties”, explaining the nesting under property and the syntax to access it, were in the docs somewhere. Would a documentation PR be welcome?