topic Re: Identify related point by polygon feature in Web AppBuilder Custom Widgets Questions

Identify related point by polygon feature

MeganGosch — Mon, 18 Jan 2016 15:13:21 GMT

I am trying to create the functionality so that when a user clicks on a polygon, it's related point feature is highlighted on my web app map. There is a similar JS api located under the Geoprocessing - Point in polygon search, but it's not exactly what I'm looking for, and it's also not in a widget form. I'm new to programming, with very limited skills, so wanted to see if anyone has created anything like this already. Thanks!

https://developers.arcgis.com/javascript/jssamples/util_relation.html

Geoprocessing - Point in polygon search | ArcGIS API for JavaScript

Re: Identify related point by polygon feature

JordanBaumgardner — Mon, 18 Jan 2016 16:15:49 GMT

I don't think there is anything out of the box. eSearch widget [ rscheitlin/eSearch · GitHub ] is probably the closest. It allows for a search based on a geometry drawn by the user.

I think what your looking for is a Query. It can accept a geometry and return features found with in.

Query | API Reference | ArcGIS API for JavaScrip

Or possibly a relationship query.

RelationshipQuery | API Reference | ArcGIS API for JavaScript

This sample seems close - You simply replace your circle geometry with your polygon.

Select with Feature Layer | ArcGIS API for JavaScript

All of the above would take some programming.

Re: Identify related point by polygon feature

MeganGosch — Mon, 18 Jan 2016 17:46:48 GMT

Thanks, all very close. The only issue is that each point has many polygons 1:M relationship. So the point may actually not be in the polygon itself, but contains the attribute of the related polygon so the query has to occur on that. I just haven't been able to figure it out.