What is the best method of importing/exporting dxf files with QGIS ? I work in an engineering field and we use CAD and specialist design programs, and often go through several iterations during a project.
I am having trouble interchanging data between QGIS and dxf formats. I export several layers from QGIS in DXF format and load them into cad. Essentially I xref the exported DXF files into cad, and then draw over the top of them in cad, as I find it quicker and more acruate. The files line up ok, but need to be scaled and transformed to match the coordinates in QGIS. I then detach the xref's, save the new DXF with line work on a single layer. The DXF file coordinates match the qgis coordinates.
I cant seem to get the new DXF to import back into QGIS. I would like to be able to export and import a particular data table several times as the project develops.
Screenshot 1 - I exported the pink polygons and edited them in CAD. I then imported the DXF file back in but nothing came in - see "entities".
Screenshot 2 - Attribute table of imported layer.