[Qgis-user] Georeferencing a DXF file

[Alexis R.L.]

Greetings,

I suggest you take a look at https://github.com/qgis/QGIS/issues/41300 as
there are some suggestions regarding for a short term solution.

Hope this helps.

Alex


Le mer. 3 févr. 2021 à 15:23, <j.huber at post-ist-da.de> a écrit :

> Hi Walt,
>
> I would load the dxf file with the modified building in QCAD and
> move/translate the data there. After saving the modified dxf file, this
> should import in QGIS at the correct location.
>
> You will need two reference points from the existing building structure -
> you could for example export the existing data set from QGIS to dxf and
> load it in QCAD as a reference or write the coordinates of two points out
> manually in QGIS.
>
> Regards
> Jochen
> Am 03.02.21 um 20:10 schrieb Walt Ludwick:
>
> I've received a 3D AutoCAD file from an architect that i managed to
> convert into 2D .dxf format and import into my QGIS project, but it is
> out-of-scale and out-of-place, so i guess i need to add some georeferencing
> coordinates to the file.
>
> This should be easy enough, since it's an accurate representation of a
> building that's already in the project -with an additional wing tacked on-
> so i'm thinking i could just use a few corners of that existing buildings
> as ground control points, and map them to the corresponding corners on this
> .dxf model, then maybe all other co-ordinates could be automatically
> generated by some tool, if i could just find the right one for the job.
>
> Is there in fact any such easy way to do this thing?
>
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