Projection in AGOL?

Anonymous User · ‎03-08-2019

When I publish a feature layer to ArcGIS Online, is it automatically converted to WGS84 Web Mercator (Auxiliary Sphere)?

JohnBrockwell · ‎03-08-2019

It projects 'on the fly'. If you are using a large dataset or many layers in a web app. I recommend projecting to Web Mercator Aux and then creating a web layer.

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JohnBrockwell · ‎03-08-2019

It projects 'on the fly'. If you are using a large dataset or many layers in a web app. I recommend projecting to Web Mercator Aux and then creating a web layer.

RobertBorchert · ‎03-08-2019

We have all of our data stored in WGS 1984 Web Mercator (auxiliary sphere) as that is the most compatible for large areas and displaying online.

As John responded. I would suggest switching to that projection for online work.

Anonymous User · ‎03-08-2019

Hi Matthew,

Yep that's right, and John has a great suggestion. Portal will keep the projection of the data published, but in ArcGIS Online it is all displayed in Web Mercator Aux.

Anonymous User · ‎03-19-2019

Thanks everyone for the responses! I might have some follow up questions, but for now that helps...