topic ARCGIS at Large Scales in ArcMap Questions

ARCGIS at Large Scales

MichaelMenzies — Tue, 31 May 2022 03:33:58 GMT

I find it useful to use ARCGIS at very large scales. I use it to map features at the micrometer scale. So - at measuring unit of 1 centimeter this might be a scale of , 1:0.001

However at these scales its not possible to generate smooth curves - as vertices are deleted upon finishing the sketch. Seems that the vertices are "legal" but that they cannot be processed due to proximity! There appears to be a limit to how close vertices can be to each other at these scales. See example. The width of the image is 0.3mm or 300 microns and the line was a smooth curve of vertices - until it was finished - end result missing vertices.

I have tried setting up a map without coordinates and will custom coordinates with an origin of 0,0 etc. But get the same result at very large scales. Any thoughts appreciated.

Re: ARCGIS at Large Scales

RobertBorchert — Tue, 31 May 2022 12:06:56 GMT

That is pretty far outside of what ArcMap was designed for.

You may want to consider switching to AutoCAD. What is the benefit of mapping something that small

Re: ARCGIS at Large Scales

MichaelMenzies — Tue, 31 May 2022 13:29:00 GMT

Agreed. It is really useful to be able to create layers of different data and interpretations - just like smaller scale maps. There are other ways of doing this but ARCGIS brings a lot of utility.