Hi, I think the best solution is to use Georeferencer, in the newer versions of QGIS you can use georeferencer for vectors, too. Select Layer/Georeferencer from menu and read the manual: https://docs.qgis.org/3.34/en/docs/user_manual/working_with_raster/georeferencer.html
The process is the same for raster and vector data. Zoltan Thomas Schüttenberg via QGIS-User <qgis-user@lists.osgeo.org> ezt írta (időpont: 2024. máj. 15., Sze, 16:55): > 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 <qgis-user@lists.osgeo.org> 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 < > richard.greenw...@gmail.com> 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 < > qgis-user@lists.osgeo.org> 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 > > > > QGIS-User@lists.osgeo.org > > > > 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 > > QGIS-User@lists.osgeo.org > > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user > _______________________________________________ > QGIS-User mailing list > QGIS-User@lists.osgeo.org > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user >
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