Why DWG Files Arrive in QGIS at the Wrong Scale — And the Right Fix When You Control the Pipeline
A surveyor sends you a DWG with what looks like UTM coordinates. You open it in QGIS, the layer appears 100 kilometers from where you expected, and when you zoom to it the geometry is microscopic — a thirty-meter parcel that displays as a 30-millimeter sliver. You set the project CRS to the right UTM zone. Nothing changes. You build a custom CRS in metric units. Nothing changes. You ask the surveyor and they swear the file is correct in AutoCAD. ...