Environment : ArcGIS Pro 2.1
If our data is in GDA2020 and we transform to Web Mercator, the software first does a datum transformation to GDA94, and then to Web Mercator. The Geographic Transformation is chosen for me, and I cannot alter it, nor can I delete it – as shown below.
This is what is occurring:
- A datum transformation to GDA94
- NULL datum transformation to WGS84
Effectively– this is not the GDA2020 realization of web Mercator - It transformed to GDA94 first. It is the GDA94 realization of Web Mercator.
Are other people aware of this?