topic Re: AreasAndLengthsParameters and measurement widget in ArcGIS JavaScript Maps SDK Questions

AreasAndLengthsParameters and measurement widget

ADITYAKUMAR1 — Wed, 06 Jan 2016 13:16:16 GMT

Hi Users,

I am using measurement widget to get the area and the length, but I also need to have length of the polygon which cane be achieved through area and length parameters.

Any idea how to integrate it in measurement widget so that when I select the area tool and draw the polygon along with area it displays the perimeter as well.

Thanks
Aditya Kumar

Re: AreasAndLengthsParameters and measurement widget

KousikM — Thu, 07 Jan 2016 09:57:16 GMT

Hi Aditya,

There is an option to get Area and Perimeter of polygon. You should create custom measurement widget.

I will give some tips,

Create draw toolbar like drawToolbar = new Draw(map);

On the "draw-end" event you get corresponding geometry. Then you check with geom type like,

if (geometry.type === "polygon") {

var areasAndLengthParams = new AreasAndLengthsParameters();
      areasAndLengthParams.lengthUnit = GeometryService.UNIT_FOOT;
      areasAndLengthParams.areaUnit = GeometryService.UNIT_ACRES;
      areasAndLengthParams.calculationType = "geodesic";
      geometryService.simplify([geometry], function(simplifiedGeometries) {
        areasAndLengthParams.polygons = simplifiedGeometries;
        geometryService.areasAndLengths(areasAndLengthParams);
      });

}

For your reference, see this sample Geometry Service - Calculate geometry | ArcGIS API for JavaScript

Re: AreasAndLengthsParameters and measurement widget

ADITYAKUMAR1 — Thu, 07 Jan 2016 14:03:20 GMT

Hi Kousik,

Thanks for the reply. Since i am a bit new to the technology I am facing issues to make a smooth flow.

Can you help me a bit more on this?

Thanks

Aditya Kumar

Re: AreasAndLengthsParameters and measurement widget

KousikM — Sat, 09 Jan 2016 17:33:36 GMT

Hi Aditya,

I have created sample for Custom Measurement widget as what you expect. I have attached the file and check it.

Let me know, If you have any queries.

Re: AreasAndLengthsParameters and measurement widget

ADITYAKUMAR1 — Tue, 12 Jan 2016 08:53:57 GMT

Hi Kousik,

Thanks a lot.This is what I was looking for.

Thanks