Re: [Qgis-user] georeference intersecting lines of highway

2025-04-20 Thread Greg Troxel via QGIS-User
Garth Fletcher via QGIS-User writes: > I think you have to know the projection used for the printed map, and > then set that layer's CRS to match. > Then you can convert ("warp") it to your preferred (project) CRS. > > The problem is that different projections distort the map in different > ways,

Re: [Qgis-user] georeference intersecting lines of highway

2025-04-20 Thread Garth Fletcher via QGIS-User
5 Date: Sun, 20 Apr 2025 14:25:22 -0400 From: Greg Troxel To: "John W. Blue via QGIS-User" Subject: Re: [Qgis-user] georeference intersecting lines of highway map Message-ID: Content-Type: text/plain "John W. Blue via QGIS-User" writes: I have downloaded historical

Re: [Qgis-user] georeference intersecting lines of highway map

2025-04-20 Thread Greg Troxel via QGIS-User
"John W. Blue via QGIS-User" writes: > I have downloaded historical highway maps in .png format that I would > like to georeference. Very cool; consider publishing the georeferenced versions. > Around the perimeter of the map are a few lines indicating lat and > long making it easy to be able t