topic Re: Custom Projection in ArcGIS Pro in ArcGIS Pro Questions

Custom Projection in ArcGIS Pro

MitchHolley1 — Tue, 12 Nov 2019 18:41:21 GMT

I have created a custom projection in ArcGIS Pro 2.4.2 (NAD 1983 UTM Zone 11N - Foot US), but ArcGIS Pro seems to handle the projection different than ArcGIS Desktop. When I create a new custom projection in ArcGIS Desktop and change the Linear Unit, the False Easting value is automatically calculated. But, when I do the same process in ArcGIS Pro, the False Easting value is not auto-calculated and remains at the default linear unit value of the original projection.

Process in ArcGIS Pro

Before changing Linear Unit:

After changing Linear Unit:

Process in ArcGIS Desktop

Before changing Linear Unit:

After changing Linear Unit:

Notice the False_Easting value has changed!

Is this typical behavior? Does the user have to determine a False Easting value for every custom projection? This is causing data to plot incorrectly when importing the data into ArcGIS Pro.

Re: Custom Projection in ArcGIS Pro

DanPatterson_Retired — Tue, 12 Nov 2019 19:37:27 GMT

meter to US foot

Feet (u.s. Survey) to Meters | Kyle's Converter

500,000 m = 1,640,416.67 US feet

Re: Custom Projection in ArcGIS Pro

MitchHolley1 — Tue, 12 Nov 2019 19:51:49 GMT

Thanks, Dan. I was just wondering why the user now has to do this conversion and manually input the value in instead of the software. This could/will lead to an incorrect data entry. It's just strange that the function is found in ArcGIS Desktop and not ArcGIS Pro.

Re: Custom Projection in ArcGIS Pro

DanPatterson_Retired — Tue, 12 Nov 2019 20:20:12 GMT

Sound like ArcGIS Ideas‌ … probably due to web stuff

Re: Custom Projection in ArcGIS Pro

HeatherSmith — Tue, 19 Nov 2019 19:06:13 GMT

Hi Mitch,

Unfortunately, you have found a bug. Fortunately, this issue (tracked here) has been fixed in Pro 2.5, so you should not see it once this new version is released and you have upgraded.