Default Datum transformation

Anonymous User — Wed, 21 Aug 2013 06:30:18 GMT

Original User: vdkamp

The ArcGIS for Server manual says:

All ArcGIS Server clients have the ability to request output data in any coordinate system. ArcGIS Server handles all coordinate conversions for you and sends data back to the client in the coordinate system it requests. You do not have to modify your models or scripts in any way.

Is there a way to influence the default datum transformation used for the coordinate conversion? Default seems to be 'None'. For instance for 'GCS_Amersfoort' (Dutch reference system) to 'GCS_WGS_1984' it is, in my opinion, the worst choice. Any in ArcMap available method would do better.

Some background information: I have a Flex API application with a map (GCS_WGS_1984) were a shape file (GCS_Amersfoort) in a dynamic workspace is added. This works but there is an offset which is the same when in ArcMap the same is done with a transformation 'None' method.

Thanks,
Albert.

Re: Default Datum transformation

Anonymous User — Wed, 21 Aug 2013 20:40:28 GMT

Original User: ykchin

[May not be the forum to post this, but ...]

You also want to have Microsoft and Google to play along.
At this moment, WGS84 Web Mercater Auxiliary is the standard projection across the big players.
We know it is not ideal.

However, it is mainly up to you or what you want to use as you basemap.
Then you can transform all your layers to the project/datum of your choice.

topic Default Datum transformation in ArcGIS Enterprise Questions

Default Datum transformation

Re: Default Datum transformation