topic Re: When measuring a line, what coordinate system does the Measure Distance tool use? in ArcGIS Pro Questions

When measuring a line, what coordinate system does the Measure Distance tool use?

Anonymous User — Mon, 13 Jun 2022 22:38:37 GMT

When measuring a line, what coordinate system does the Measure Distance tool use?

Re: When measuring a line, what coordinate system does the Measure Distance tool use?

DanPatterson — Mon, 13 Jun 2022 23:30:14 GMT

Measure—ArcGIS Pro | Documentation

lots of options, including planar and geodesic, read the topic for 2D and 3D options for maps and scenes

Re: When measuring a line, what coordinate system does the Measure Distance tool use?

Anonymous User — Tue, 14 Jun 2022 00:00:32 GMT

Unless I missed something, the only mention of coordinate systems on that page is for measuring area. And that section has no mention of which coordinate system is actually used.

I'm trying to figure out how ArcPro determines which coordinate system to use for the measurement.

Re: When measuring a line, what coordinate system does the Measure Distance tool use?

ChristopherCounsell — Tue, 14 Jun 2022 00:58:04 GMT

The measure tool uses the Coordinate System set in the Map Properties.

You can confirm this by measuring the distance between two cities and then changing the map coordinate system.

It's what they use in introduction to ArcGIS courses to explain the distortion on projections.

Re: When measuring a line, what coordinate system does the Measure Distance tool use?

ssrojas — Mon, 27 Jun 2022 14:30:14 GMT

I was also wondering about this! I turned off all layers in ArcGIS Pro and used the measuring tool...Still got a measurement. So, I assumed it was from the Coordinate System.