Hi. First post. Maybe this is more of a feature request but our workflow involves bringing these images into CAD pretty often. I am curious if anyone has any tips and tricks on how to make this process smooth and accurate. Often I work with GeoTiff files that have an accompanying .prj file that designates the scale and projection. These are super handy for importing to CAD (Autodesk Civil 3D) or GIS. It would be cool if WebODM could produce these as well. TIA
What are you referencing with “these images”?
The input images should all be georeferenced and can be loaded by QGIS, for example. The output GeoTIFFs are also georeferenced using the EXIF metadata.
Thanks. Hmmm… I’m not sure AutoCAD reads the EXIF metadata. I think it needs a .tfw (or .prj) file.
“These images” are drone collected orthoimages which I’d like to use as background for CAD linework.
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Autodesk Civil 3D can read the geotiff headers, you just have to pull it in correctly. Unfortunately, I haven’t done this in 6 or 7 years, so I can’t recommend an approach. But the thing to search in the documentation is geotiff and referencing.
Worst case, you can use GDAL to add the world and prj.
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Regards @FSLA
In Civil 3D, you can use the “Mapimport” command. Very important, you must have your drawing in the same projection of the image or use QGIS to match them. Ultimately, try to load it through the “Mapwspace” palette with the Raster connection.
Regards from Colombia
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Thank you @tatowem I tried MAPIMPORT but it doesn’t look like it supports TIF weirdly. I thought it did.
Also I tried the MAPWSPACE command. I guess my issue here is, I am not sure how to check or set the image projection when I view or download assets from WebODM
Thanks!
The image projection is always the local UTM zone: What UTM Zone am I in ? - Interactive Web Map
Try mapinsert instead of mapimport.
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Exactly @FSLA , That’s is correct. I wrong with the command. Thanks @smathermather for you correction.
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