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Messages - JMR

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Export the cloud with the offset (you can enter shift during export) and then import again.

José Martínez

Geobit & Accupixel
Agisoft endorsed training providers.

General / Re: How to solve strange images aligment
« on: October 23, 2022, 11:08:12 AM »
Precalibrate your camera could be the best solution.

General / Re: Agisoft Metashape 2.0.0 pre-release
« on: October 16, 2022, 04:21:27 PM »
It is rather difficult to understand for me why steps towards the integration of lidar/laser scans and photogrammetry requires the removal of  the terms "laser scans", or "LiDAR" from all menus. Apparently import scans sounds too much explicit or specific, so it is better to call them depth images.
Why not "structured laser scans" versus "unstructured point cloud? Also why drag and drop scans over the chunk is still impossible?
Thanks for the update!!!! I'm eager to test it further.

Best for good russians.

General / Re: How to display 3D side by side in fullscreen ?
« on: October 14, 2022, 12:38:28 AM »
Are you trying to adapt some stereoscope? I do not recommend it: I did it some time ago and the stereo view was deformed and uncomfortable... I spent many days working this way and finally gave up. Later I purchased a true stereoscpic diplay based on dual monitors and a splitting mirror... and OMG, this is glory! I love it. I'm an absolute fan of stereo plotting it feels like diving into the reality. Seriously, forget split view. Aspect ratio gets wrong, Agisoft has done something wrong with the split view and I have already told them but they don't seem to care enough about old school stereo photogrammetrists. Get a stereo ready card and just let me know if you want a proper stereo display.

Feature Requests / back face color tint
« on: October 13, 2022, 02:45:50 PM »
Dear Agisoft devs.
I know there is an option for back face culling that works during orthomosaic creation hiding triangles with normals pointing towards the projection plane. It works well in some cases, but not-so-well for complex geometry where it often creates confusion when triangles in the hidden areas have normals towards the viewer.
I would like to have also an option for using a distinctive tint overlay for inverted triangles as alternative to culling.

The mesh is rendered darker for inverted faces, but it is not so much different to the positive face when texture or colour is also dark. It would be nice to have the color tint option also in the model viewport when looking at textured or shaded mesh.

Best regards.
José Martínez

It is already available. Select the same three markers used for drawing plane definition also for building the planar orthomosaic... or am I missing something?

General / Re: Alignment Error on aerial photogrammetry
« on: September 29, 2022, 02:43:19 AM »
... and i can't get tie point information to knwo wich photo generate this specific tie point...
If you can select a tie point you can filter photos pane "by points". This will tell you the photos it comes from.

Bug Reports / ortho view malfunctioning
« on: August 26, 2022, 08:05:18 PM »
Context: 3D model of a building mixing aerial and terrestrial photos. the project contains mesh, one projected DEM and several elevation façade planar orthomosaics.

My ortho view gets frozen when an orthomosaic is shown and I can neither drag (pan) nor draw. Zoom with mouse wheel also impossible, however magnification button works normally
If ortho view contains DEM, the odd behavior stops, and I can draw, pan, zoom etc.
If I switch to orthomosaic the problem comes back
But the weirdest finding is: if I de-default the existing DEM, then orthomosaic turns back to normal behavior, so it seems to be something related to DEM (projection) coexisting with orthomosaics (planar):

All with latest release.
Best regartds.

General / Re: creating new mesh from dense cloud without overwriting
« on: July 29, 2022, 06:02:07 PM »
Right click on the mesh object and uncheck "set as default mesh"... same applies for dense clouds, orthomosaics, etc.

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General / Re: Waving a white flag
« on: June 09, 2022, 09:19:57 PM »
Not sure what you mean about the names not being important, please clarify. I need to match the names to update the coordinates from the GCP file. (That's a minor issue, as you can edit the GCP csv to match the labels, i.e. "point 1".)
In the import reference dialogue there is a checkbox that "ignore labels", try it and you will understand. Metashape manages to match markers and ground points on its own (obviously it can fail if points distribution is too much regular making several matches plausible)
Also you may need to see if by enabling "refine markers" under tools menu, you get the boost you want for your workflow. (also needs some user care, that is why it is not enabled by default)
Best regards,

José Martínez
Geobit & Accupixel
Metashape traning

General / Re: Waving a white flag
« on: June 08, 2022, 09:38:55 PM »
I'm not sure I'm understanding you well. I guess you are not fully understanding the different methods to add a control point to the chunk. Place marker vs add marker. Also I wonder if you know that naming markers the same as the gcps in the file is not as critical as it may appear.
Of course there is no need for coding for turning white flags into green, and even if it was doable, I guess it would be hardly acceptable. Green flags are marker projections placed by the user on a given pixel location very consciously, nothing to be automated.
Blue flags are projections placed by the software based on previous user input that have same value for calculations as green ones, (all blue flags need to be inspected by the user if only one is found to be off its expected location in some instance), and white flags are projections suggested by the software by projecting a ray from the 3d point location to the camera center, they play no role in calculations.

José Martínez
Geobit & Accupixel
Metashape traning

I second it too. In meantime you can use filter by confidence, select all points with confidence under desired threshold and assign Low Point(noise) class to the low confidence points so they can be excluded by class.

José Martínez

General / Re: reconstruction has wrong orientation after alignment
« on: November 29, 2021, 12:24:49 AM »
there is one specific tool for rotating object. Find it in the toolbar 9th button.
If your reference data is wrong (tilted and possibly badly scaled too due bad quality GPS records likely) then you need to reset chunk transform in order to be able to rotate, but then you need to set scale by entering a scale bar as reference.

Bug Reports / Re: zero tie points
« on: October 25, 2021, 01:12:01 PM »
Seen at least 3 times with 1.7.4, the issue required built tie points command and everything worked as expected.
not yet seen/tested with 1.7.5


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