topic Can I create a spatialreference from an existing prj file? in ArcGIS Pro SDK Questions

Can I create a spatialreference from an existing prj file?

MarioLandry2 — Fri, 27 May 2022 19:18:29 GMT

When developing under ArcMap, we used to be able to create a spatialreference from a prj file just like in this example:

pSpatialReference = pSRFact.CreateESRISpatialReferenceFromPRJFile(_sPrjFile);

But when I look at the documentation for ArcGIS Pro SDK, I only see that in order to create a spatial reference, the most common way of doing it is using a wkid number.

Can I do it using a prj file, or am I missing something here?

Re: Can I create a spatialreference from an existing prj file?

NarelleChedzey — Mon, 30 May 2022 03:06:03 GMT

Hi ,

We don't have anything to use the prj file directly, but I believe you should be able to use the following code as the prj file contains text in the wkt format. I have wrapped the CreateSpatialReference call in a try/catch in case of error which would need to be handled.

try { string path = @"c:\60571.prj"; var sText = System.IO.File.ReadAllText(path); SpatialReference sr = SpatialReferenceBuilder.CreateSpatialReference(sText); } catch (Exception e) { }

Regards

Narelle

Re: Can I create a spatialreference from an existing prj file?

MarioLandry2 — Mon, 30 May 2022 11:45:59 GMT

Thanks a lot Narelle. It will work for me.