topic Re: Can ArcGIS Pro convert Ground coordinates to UTM? in ArcGIS Pro Questions

Can ArcGIS Pro convert Ground coordinates to UTM?

Mark_Hotz — Wed, 12 Feb 2020 22:57:56 GMT

I have an AutoCAD drawing in ground coordinates and need to get this into a usable projection to use in ArcGIS Pro. Is ArcGIS Pro able to do this? I have the math that is typically used to do such a conversion (below), but I am not quite clear how to implement this in ArcGIS Pro:

To Transform Ground to UTM Coordinates

Example: Point100 (Ground) 13262.582 m N, 4380.119 m E

1. Shift back to the original scaled coordinate value:

13262.582 m + 6,000,000 m = 6013262.582 m N
4380.119 m + 410,000m = 414380.119 m E

2. Scale Point 100 from the Ground down to the Grid using the CSF:

6013262.582 m * 0.9996899303 = 6011398.051 m
414380.119 m * 0.9996899303 = 414251.632 m

Suggestions?

Thank you

Re: Can ArcGIS Pro convert Ground coordinates to UTM?

DanPatterson_Retired — Wed, 12 Feb 2020 23:34:10 GMT

Ground to grid correction—ArcGIS Pro | Documentation

but it seems to more for construction tools

Re: Can ArcGIS Pro convert Ground coordinates to UTM?

Mark_Hotz — Wed, 12 Feb 2020 23:52:45 GMT

Thanks Dan:

I was looking at this tool in ArcGIS Pro, but it seems to want direction offset for one direction, whereas the formula I have requires two...unless I'm missing something:

I was sure that the way to do this was to create a custom projection, but I cannot find much anywhere that explains how to do that. That and the direction offset options are dd, dms an ra...whereas the output needs to be in UTM.

I think the problem right now is that I have no idea how to use this Corrections tool LOL.

Re: Can ArcGIS Pro convert Ground coordinates to UTM?

DanPatterson_Retired — Thu, 13 Feb 2020 00:10:56 GMT

dd has a drop down arrow is there other options if you click on it (I don't have data to test)

Also there is some mention in

About CAD coordinate systems—ArcGIS Pro | Documentation

Parcel fabric data model—ArcGIS Pro | Documentation