Help: Drawing straight lines using the polygon tool

Discussion created by Josh_rl on Apr 26, 2018
Latest reply on Apr 27, 2018 by dkwiens



I'm currently using Arcmap 10.3.1. and I am trying to manually outline glacier extent on Landsat imagery at 30 m resolution. I wan to draw a straight line around each pixel edge to create a polygon of glacier area. When I am drawing the line they often have angle changes in them so that they do not appear straight (see image below).



Is there a way to efficiently draw perfectly straight lines? - e.g. shift and drag as in Adobe Illustrator to get a perfectly straight line


Thanks in advance.