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Messages - tinybear

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General / Re: Georeferencing 3D scan with known position points
« on: April 09, 2022, 10:40:47 AM »
Hi Paulo!

I finally found the workaround:

Re-importing the 3D scan point cloud  and shifting the XYZ coordinates in "Import cloud" form with XYZ values of one of the known points. Thus, both clouds are "almost aligned" +/-10 meters and above all georeferenced in the same coordinates reference system.

The following workflow makes the final alignment very well:

1. Create Markers on the 3D scan (corners etc...)
2. Export Markers in txt
3. Transform WGS84 cameras geotags CRS into projected one (metric) : UTM, RGF93 etc. )in photogrammetric chunk
4. Align cameras
3. Import Markers  (tie points)
4. Align Markers with cameras (same corners etc. ) as with GCPs
5. Optimize
5. Generate Dense Cloud
6. "Align chunks" and "Merge chunks"

Done.  :)

General / Georeferencing 3D scan with known position points
« on: April 08, 2022, 06:51:01 PM »
Hi everyone!

I'm back again with my faro cloud.

It is non-georeferenced, in Local coordinate system (m).

I have some reference points of known position in a projected CS LV1903+ (meters too).

I created markers on my point cloud; they of course display unrealistic Local XYZ values. Both markers and reference points represent the same points on the cloud.

I tried to manually change the XYZ markers + update.

How could I "force" Metashape to "move" my Local point cloud to a georeferenced one using GCP-like points?

Now that's perfect. Faro cloud colorized by aligned cameras  ;D

Hi Alexey!

Thanks for your quick reply.

No it's actually black. However I managed to colorize the faro cloud with cloud compare and reimport it in las format in Metashape.

I was actually trying to find a trick to change the color of a group of points in MS directly  ;)

General / Change faro point cloud color after camera based cloud merge
« on: April 06, 2022, 11:30:39 AM »

I've merge an e57 faro cloud with a Mavic one.

From the Preference menu I've changed the color of the faro one.

After merging it appears black. I performed Select points by color, and???

Was thinking about a py script. Any idea?

Many thanks!

General / Re: GCPs black lines from markers
« on: March 31, 2022, 10:24:50 AM »
Got it! Thanks!

It's actually a 2014 dataset...

General / GCPs black lines from markers
« on: March 30, 2022, 08:03:19 AM »
Might be stupid, didn't find the answer. Once one marker is placed at the center of a ground target a black line is drawn from the dot marker on the picture (see screenshot). I don't figure out the meaning...

Bug Reports / Re: Metashape 1.8 multispectral issues
« on: February 14, 2022, 01:02:27 PM »
Works great ! Many thanks !
(BTW my apologizes, I should have specified the type of sensor...)

Bug Reports / Re: Metashape 1.8 multispectral issues
« on: February 12, 2022, 09:34:27 AM »
Hi Alexey!
The link to a couple of images : https:/  / and screenshots error log attached :

Tks !

Bug Reports / Metashape 1.8 multispectral issues
« on: February 10, 2022, 12:14:00 PM »

I can't process multispectral images with 1.8, at import, images references coordinates fields are blanked and the Photos pane shows No Image for each of them.

Same dataset works fine with 1.7...

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