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Best/fastest way to display very large datasets in the ArcGIS JS API?

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03-12-2019 09:37 AM
TristanLopus1
Emerging Contributor

I have a very large set of polygons to display, and I cannot find a way to load them that is sufficiently fast and perfomant. I have tried GeoJSON, but loading is extremely slow. 

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11 Replies
Rhys-Donoghue
Regular Contributor

I also just tested a large GeoJSON dataset on the new GeoJSONLayer that Rene mentioned.  It works great, and is faster than a map service - GeoJSONLayer | ArcGIS API for JavaScript 4.14 .

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MichaelRobb
Honored Contributor

decreasing coordinates to tenth would yeild you 11.1KM precision.. what good is 'well its around 11KM there'?  I know of maybe 1% of business requests you could get away with Regional precision mapping.  Most if not all Mapping should be and needs to be at least 5 precision points.

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