thunter009 commented on issue #8082: add GeoJSON encoding support to deck.gl 
Polygon chart
URL: 
https://github.com/apache/incubator-superset/pull/8082#issuecomment-578941296
 
 
   > +1 for multipolygon support! :)
   > 
   > @thunter009 Do you mind sharing an example of a supported multiploygon 
format (json/geojson)? We've implemented your PR in our local superset build, 
but have not yet been successful in displaying multipolygons (only single). 
We've explored different variations of JSON/GeoJSON :)
   
   Sure thing -- here are some example multi-polygons in the form of 17 US 
Census MSAs:
   
   
[sample_msa_multipolygons.zip](https://github.com/apache/incubator-superset/files/4119236/sample_msa_multipolygons.zip)
   
   I was able to map these via Deck.gl Polygon chart as seen below:
   
   
![image](https://user-images.githubusercontent.com/7088252/73211769-e0852a00-411a-11ea-9753-79a347084937.png)
   
![image](https://user-images.githubusercontent.com/7088252/73211848-03174300-411b-11ea-9055-75ee01290587.png)
   
   
   

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