topic Specifying cartographic reference systems that have no EPSG codes in Java Maps SDK Questions

Specifying cartographic reference systems that have no EPSG codes

dw2 — Tue, 06 Nov 2012 13:29:13 GMT

For the cartographic reference systems that have no EPSG codes, how could they be used in the Runtime API? Is there a way to compose a custom CRS and deploy that with the map package? Could we assume the datum shift are handled within Runtime for the CRS's that have EPSG code? Is there a definitive list of CRS's that are supported in Runtime?

Re: Specifying cartographic reference systems that have no EPSG codes

MelitaKennedy — Tue, 06 Nov 2012 16:45:48 GMT

The list of supported coordinate systems is documented here.

You may be able to use a well-known text representation of the coordinate system.

Geographic (datum) transformations usually do not occur automatically but check the help for some more details.

If the information isn't considered proprietary, please feel free to send me the details. We would be happy to add the coordinate system definitions to a future release.

Regards,
Melita

mkennedy at esri dot com

Re: Specifying cartographic reference systems that have no EPSG codes

dw2 — Tue, 06 Nov 2012 21:50:12 GMT

In ArcGIS Engine, an array of geotransformations could be specified for MapBean and MapServer. Those geotransformations are needed for bringing layers of different spatial references into the map spatial reference. Comparable API's for manipulating an array of geotransformations don't seem to be available in ArcGIS Runtime for JMap.

Not sure if the supported geotransformations for ArcGIS Runtime is published on the ArcGIS Resources as well.

Not sure if geotransformation could be specified in well-known text. If not, how could custom geotransformation be specified in ArcGIS Runtime.

Re: Specifying cartographic reference systems that have no EPSG codes

EricBader — Fri, 09 Nov 2012 21:55:57 GMT

Hi David:

Yes, this is a very popular request.

As it stands right now, there isn't a way to support custom geotransformations in the ArcGIS Runtime SDK for Java. We hope to explore the possibility of adding that capability in a future release.