Posted by mattz40 on Aug 10, 2021; 1:10pm
URL: https://forum.librecad.org/Trouble-with-scaling-tp5720910p5720912.html

Thanks dellus. Yes I scratched my head over the disappearing image for a while until I stumbled on the zoom in, zoom out solution that brought it back. Funny thing is while it was 'invisible' I couldn't see the traced lines, but I could see smudges my fingers made while tracing.
I was just now looking at the circle properties and wondered if maybe it was showing pixels instead of inches or mm, but DPI solves the mystery. Doing the math with the radius property in DPI tells me I'm very close to 1:1. So a circle that should have a radius of 120 dots has a radius of 112 dots. Now I just need to figure out how to scale that and I should be set. Thanks again.