topic Re: Transformation from one projection to other in Web AppBuilder Custom Widgets Questions

Transformation from one projection to other

RahmathUnissa — Wed, 12 Aug 2015 18:48:27 GMT

Hello,

I have created an app in Web Appbuilder, where the BaseMap has a spatial reference as say "A" and I using a Map Service whose spatial reference as say "B".

Q.1 How the Transformation from one projection to other is done?

Q.2 How can I get access to it? so that I can easily transform it in my widget.

Thank you.

Rahmath Unissa

Re: Transformation from one projection to other

RobertScheitlin__GISP — Wed, 12 Aug 2015 19:00:09 GMT

Rathmath,

You will use the GeometryService to project the geometry.

GeometryService | API Reference | ArcGIS API for JavaScript

Re: Transformation from one projection to other

RahmathUnissa — Wed, 12 Aug 2015 19:53:50 GMT

Hey,

To Project a BaseMap in a Web AppBuilder how do I give the below parameters:

params.outSR = outSR;

(Used as params.outSR = new SpatialReference({wkid:102100}); )

params.transformation = transformation;

Thank you,

Rahmath Unissa

Re: Transformation from one projection to other

RobertScheitlin__GISP — Wed, 12 Aug 2015 20:04:18 GMT

Rahmath,

To Project a BaseMap in a Web AppBuilder

You can not project a basemap, you project geometries to match your your basemaps WKID.