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Re: image reference

Posted by dellus on Apr 04, 2020; 8:37pm
URL: https://forum.librecad.org/image-reference-tp5718665p5718693.html

Do you mean you have a paper plan in A4 and 1/50 and want to import this into LibreCAD?
The easiest way is just to import it with the standard settings, measure something in it you know the true length of and then scale the image with the calculated factor to get it there.
Otherwise you have to know the dpi the image has been scanned or produced. Out of the box the image is imported with one unit per pixel. dpi means dots per inch. So some confusing calculation necessary. What is the correct procedure?