Hi Linda, have you tried the QGIS plugin "Vector Bender"? https://plugins.qgis.org/plugins/VectorBender/ https://github.com/olivierdalang/VectorBender/blob/master/README.md
Thomas > Linda Boisvert via QGIS-User <[email protected]> hat am 15.05.2024 > 03:02 CEST geschrieben: > > > Thank you Richard. Your suggestion was a step in the right direction. > > I had to import using the add vector layer then export as an ESRI shapefile > and add the shapefile layer. That put all the features from the multiple dxf > file layers on one layer and I was able to move the design. But it is > important the keep the dxf layers separate and move the whole group of layers > at once to maintain the relationship. > > > On Tue, May 14, 2024, 2:26 PM Richard Greenwood <[email protected]> > wrote: > > You can just use the QGIS Move Feature tool, possibly in conjunction with > > the Rotate Feature and/or Scale Feature tools in the advanced digitizing > > toolbar. > > 1. Assign a coordinate system to the DXF layer. If you don't know the > > coordinate system, or if the DXF file doesn't have one, assign the > > coordinate system of your reference layer (your aerial photography) > > 2. Make your DXF file editable. Depending on how you imported it you may > > be able to make it editable, or you may need to copy all of the features to > > an editable work layer. > > 3. Select all of the features, pick the Move Feature tool, pick a source > > point on a corner of the building, pick a destination point on the > > corresponding corner in your reference layer. (this takes some serious > > panning and zooming!) > > 4. With all of the features still selected, pick the Rotate Feature tool, > > while holding the Control key click the building corner to fix the rotation > > base point, then click two more points to define the rotation angle. > > 5. You may need to scale it e.g. convert feet to meters. If so, pick the > > Scale Feature tool, hold the Control key and click a base point, then two > > more points to resize all of the features. > > The move, rotate and scale steps are performing an affine transformation > > which should provide reasonable results over small areas if both the DXF > > and reference layer are in projected coordinate systems, ideally local > > projected coordinate systems like State Plane or UTM, and not Web Mercator. > > > > > > > > > > > > > > > > On Tue, May 14, 2024 at 3:00 PM Linda Boisvert via QGIS-User > > <[email protected]> wrote: > > > Hello, > > > > > > I have been trying to georeference a dxf file created by a solar design > > > software. > > > > > > I can import the file without issues but the design sits in the middle of > > > the Pacific Ocean. I have georeferenced rasters before but I can't get > > > this dxf file to budge. > > > > > > I have tried many of the suggestions I have found online for > > > georeferencing the dxf file. > > > > > > I have tried to move the design using QAD and QAD did not find objects > > > when I tried to select the design or any single line. > > > > > > I imported the file into LibreCAD and the file worked fine in that > > > software. > > > > > > I imported the file into ArcGIS and I could not see the lines of the dxf > > > file. > > > > > > I have attached a test dxf if someone wants to try it out and find a > > > solution. The building is the Eugene Brucker Education Center 4100 Normal > > > Street San Diego, CA 92103. > > > > > > Does anyone have any suggestions for georeferencing this file or any idea > > > what the issue may be? > > > > > > > > > > > > > > > -- > > > > > > Sincerely, > > > Linda Boisvert > > > _______________________________________________ > > > QGIS-User mailing list > > > [email protected] > > > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > > > > > > > > > > > -- > > > > Richard W. Greenwood > > www.greenwoodmap.com (http://www.greenwoodmap.com) > _______________________________________________ > QGIS-User mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user _______________________________________________ QGIS-User mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
