topic Re: Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map in ArcGIS Server with JavaScript API Questions

Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map

AarthiAdhikesavan — Thu, 14 Feb 2019 06:49:15 GMT

Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map using arcgis for javascript api. Can anyone help with this ? Thank you in advance.

Re: Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map

RobertScheitlin__GISP — Thu, 14 Feb 2019 14:50:36 GMT

Aarthi,

You would need to use a map service that represents land and query that map service to see if the clicked point intersects if the returned features are greater than 0 then you are on land.

Re: Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map

AarthiAdhikesavan — Fri, 15 Feb 2019 07:23:05 GMT

Thank you Robert, for your response. Can you please explain what kind of map service it is and will I be able to make use of it in arcgis api for javascript ?

Re: Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map

RobertScheitlin__GISP — Fri, 15 Feb 2019 13:48:44 GMT

Aarthi,

Use a public map service like this:

https://services.arcgisonline.com/arcgis/rest/services/Reference/World_Boundaries_and_Places/MapServer/0

And yes you can use it in JS API or I would not have suggested it.

QueryTask:

QueryTask | API Reference | ArcGIS API for JavaScript 3.27

Query:

Query | API Reference | ArcGIS API for JavaScript 3.27

Sample of how to use Query and QueryTask with a mouse click:

ArcGIS API for JavaScript Sandbox

Re: Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map

AarthiAdhikesavan — Sat, 16 Feb 2019 10:17:02 GMT

Thank you so much. I will have a look at these references and services.

Re: Given a lat lng or x,y coordinate, I need to specify whether it is in a land or sea in map

RobertScheitlin__GISP — Mon, 18 Feb 2019 13:45:33 GMT

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