Carol Reznor Posted April 17, 2024 Share Posted April 17, 2024 (edited) When you import a point cloud as is - without centering it on the internal origin as to keep it in its geolocation, you will get a point cloud that is visually corrupted, as in, it will have ugly lines... and the x,y coordinates say 0 while you can see in the rulers that is not the case... Some time ago I reported this as a bug. I think it still is, as this should work properly so not to loose the correct georeferencing and have a nice workable point cloud. The solution I found for this now is 1. import the geotiff generated by the drone (using the settings of the geotiff - units and EPSG) then 2. adjust the internal and user origin so they coincide with the midpoint of the geotiff and finally 3. import the point cloud ticking the box 'Center Import on Internal Origin' So - you need to export a geotiff and a point cloud from your drone to be able to use the pointcloud in GIS RESULT of 1-2-3 Edited April 17, 2024 by Carol Reznor 2 Quote Link to comment
Tom W. Posted April 17, 2024 Share Posted April 17, 2024 8 minutes ago, Carol Reznor said: When you import a point cloud as is - without centering it on the internal origin as to keep it in its geolocation, you will get a point cloud that is visually corrupted, as in, it will have ugly lines... Some time ago I reported this as a bug. This is a massive pain. I submitted a bug about it as well. VB-202892. It's crazy that you have to jump through these kinds of hoops in order to import a point cloud into a georeferenced file. 13 minutes ago, Carol Reznor said: The solution I found for this now is 1. import the geotiff generated by the drone (using the settings of the geotiff - units and EPSG) then 2. adjust the internal and user origin so they coincide with the midpoint of the geotiff and finally 3. import the point cloud ticking the box 'Center Import on Internal Origin' Is Step 4 to Set User Origin to match the Georeferencing coordinate system? 1 Quote Link to comment
Carol Reznor Posted April 17, 2024 Author Share Posted April 17, 2024 3 minutes ago, Tom W. said: Is Step 4 to Set User Origin to match the Georeferencing coordinate system? @Tom W. That is a good practice I find and my personal preference to indeed set it (the user origin) back to match the CRS - especially if you export to DWG because otherwise the DWG will read what the rulers say and import incorrectly ( check the box export dwg with georeferencing puts a Geographic marker in the file in autocad) ... BUT for architects... if you want to export to IFC you shouldn't as IFC only works with 1 origin, so in that case they (internal and user origin) should stay in one place. hoop hoop hoop 🙂 2 Quote Link to comment
Carol Reznor Posted May 22, 2024 Author Share Posted May 22, 2024 So... in a following project... this seems to not work as the orthophoto and the pointcloud are NOT exactly the same. They cover a different area so the midpoint of both objects is not the same... Back to square one... no good way to georeference a pointcloud. Quote Link to comment
Tom W. Posted May 22, 2024 Share Posted May 22, 2024 1 minute ago, Carol Reznor said: no good way to georeference a pointcloud. I finally filed a bug about this a couple of months back but not had a response yet... VB-202892 Quote Link to comment
Anders Blomberg Posted May 23, 2024 Share Posted May 23, 2024 I've also filed one and heard back som time ago so there might be light at the end of the tunnel for this one. 1 Quote Link to comment
Tom W. Posted May 23, 2024 Share Posted May 23, 2024 1 minute ago, Anders Blomberg said: I've also filed one and heard back som time ago so there might be light at the end of the tunnel for this one. Ok cool that's hopeful what did they say...? Quote Link to comment
Anders Blomberg Posted May 23, 2024 Share Posted May 23, 2024 They're "working on some improvements" so I tried nudging them into some improvement on this one 🙂 2 Quote Link to comment
zeno Posted January 7 Share Posted January 7 On 5/22/2024 at 8:57 AM, Carol Reznor said: So... in a following project... this seems to not work as the orthophoto and the pointcloud are NOT exactly the same. They cover a different area so the midpoint of both objects is not the same... Back to square one... no good way to georeference a pointcloud. Hello there is some update on this direction? Thanks Quote Link to comment
Anders Blomberg Posted January 8 Share Posted January 8 @zeno Not as far as I know. Maybe @Katarina Ollikainen could elaborate somewhat on the issue? Quote Link to comment
Vectorworks, Inc Employee Katarina Ollikainen Posted January 8 Vectorworks, Inc Employee Share Posted January 8 @zeno, I've contacted the engineers working on this and will leave an update as soon as I know more about the progress. 4 Quote Link to comment
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