We getting different scale of dxf to base DWG file once we did georeferenced in QGIS ?
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Maybe the reason for your issue is that the GDAL DXF driver is setting the unit into Imperial Inches https://gdal.org/en/release-3.10/drivers/vector/dxf.html#units
GDAL writes DXF files with measurement units set to "Imperial - Inches". If you need to change the units, edit the $MEASUREMENT and $INSUNITS variables in the header template.
In the GDAL version 3.11 this behavior will change.
INSUNITS=[AUTO/HEADER_VALUE/UNITLESS/INCHES/FEET/MILLIMETERS/CENTIMETERS/METERS/US_SURVEY_FEET]: (GDAL >= 3.11) Defaults to AUTO. Drawing units for the model space ($INSUNITS system variable). The default AUTO mode first check if the written layer has a projected CRS, and if so uses is linear units to determine the value of $INSUNITS. Otherwise it fallbacks to the value of the header template (HEADER_VALUE mode), which is INCHES.
