Input Polygon by JSON format

[Anonymous User]

Hi all,

I could generate a point feature in GeoEvent Server 10.7.1 but failed to generate two polygon features by below JSON string.

Could you please point out any possible reason? thanks.

Regards,

Bing

[Anonymous User · Accepted solution]

Hi all

I think I found the format for Geometry, it looks like "Geometry":{rings:[[[XXX, XXX],[XXX, XXX]]]}, I just missed Object for the "rings".

Regards,

Bing

[RJSunderman]

Hello Bing –

Glad you got what you needed figured out. I noticed, though, that your JSON representation of the polygon geometry has no spatial reference. You will want to include that to "complete" the feature record specification if you want to be able to compare an event record's geometry to, say, a geofence to test spatial coincidence.

You might find the following references helpful:

• Core Concepts - Features and Geometries - Points
• Core Concepts - Features and Geometries - Polylines
• Core Concepts - Features and Geometries - Polygons

Also, GeoEvent Server recently updated its documentation for inbound connectors which includes some relevant illustrations, and there is a blog on using GeoEvent Simulator to pass JSON string representations of geometry which enables you to simulate geometries other than point:

• Input Connectors - Receive Features on a REST Endpoint
• Can I use the GeoEvent Simulator to simulate events with geometries other than Point

Hope these are helpful–
RJ