Recent Posts

31

Bug Reports / Re: Shapes are not visible on 3D model

« Last post by Geodetec on June 29, 2022, 09:11:24 AM »

Hello,

I created my polygons in model view while snapping directling on the dense cloud.

Best regards

32

Bug Reports / Re: VK Error when creating textures in 1.8

« Last post by ruudstelten on June 29, 2022, 06:12:47 AM »

Alexey,

Do you know when GPU-based texturing on Apple M1 will be available in Metashape? The entire process is super fast on M1, but texturing using CPU only takes a long time...

33

Bug Reports / Re: Shapes are not visible on 3D model

« Last post by Paulo on June 29, 2022, 05:59:06 AM »

Hello Geodetec,

did you create the polygons in ortho view or model view?

If the polygons are created in ortho view (without dtm) then they will be 2d and thus cannot be displayed in model view. Same applies if you import 2d polygons to your project.

Best is to dram polygons in model view (with dense cloud or mesh) and then they will be 3d....

Maybe this is the issue....

34

General / Re: Dense Point Cloud Gaps

« Last post by Jholland on June 29, 2022, 05:09:51 AM »

Hi Alexey,
I've attached images with the alignment parameters resulting point cloud after edits, the coverage of the aligned photos, and a close up of the thumbnails which seem to coincide with the gaps. 
Thanks
James   

35

Bug Reports / Shapes are not visible on 3D model

« Last post by Geodetec on June 28, 2022, 10:24:31 PM »

Hi,

I'm trying to plan a mission for a DJI pro 4 but I have somme issues.

I imported points from swissLIDAR et generated the mesh. Then I try to plan mission but it asks some polygon to define the areas.

The problem is when I create my polygon i can't see them, they are not visible and when I select the layer in the Safety zone menu it says "SafetyZone bbox empty".

My LIDAR is EPSG::2056 and my shape so.

Can you help me to see my polygon in my 3D view and how to apply it for my mission planning ?

Thanks you and kinds regards

36

Camera Calibration / Re: lens calibration improvement

« Last post by Alexey Pasumansky on June 28, 2022, 09:05:10 PM »

Hello forumname,

How many images per focal length you are using for lens calibration? If possible, please send a few calibration images to support@agisoft.com?

37

Python and Java API / Re: Camera Rig configuration through Python API

« Last post by ilia on June 28, 2022, 08:29:17 PM »

I think I sort of understood how to work with it. It looks like Sensor's fields .location and .rotation with .fixed_location and .fixed_rotation are the fields I need to use. For slave cameras they control their relative position to the master camera. I'm still confused about the class Reference and its role inside Sensor class and its role for master and slave cameras.
May I ask you to clarify these moments?

I would say my main source of confusion is the different use of terms "camera", "sensor", "reference" in Python API and in GUI.

38

Python and Java API / Re: Camera Rig configuration through Python API

« Last post by ilia on June 28, 2022, 07:58:46 PM »

I still can't find where and how I can set slave camera offsets for the camera rig, but I'm struggle to find how I can install through Python API slave offsets. I've checked again Python API document. I see there Sensor class. I see there is Camera class and there is Sensor class, but I don't see how I can specify relative transformation from slave camera to master camera. But I see there are fields in GUI of Metashape.
My guess it that for slave cameras we can enable these references through default antenna  but they will calculated not relative to GNSS, but relative to the master Sensor. But I'm not sure. I guess I will try to experiment with it a bit today to figure out.

39

Python and Java API / Re: Using "generateMasks" to import masks only for a selection of cameras

« Last post by Alexey Pasumansky on June 28, 2022, 07:52:19 PM »

Hello Mettigel,

cameras=[c.key for c in chunk.cameras if c.type == Metashape.Camera.Type.Regular] - provides the list of int, as required for cameras argument, unique id of each camera in the chunk, excluding animation cameras, if any.

As for the original issue, I think, you can use try/except concept to avoid the script being terminated by "RuntimeError: Can't open file" message related to missing mask images. Note that in case of corrupted mask file the exception will be different: "RuntimeError: Can't load image".

Another possible solution is to get the list of mask files in the source folder, then form the list of cameras to be used in generateMasks.

40

General / Elevation different by over 100m on different days

« Last post by Black Fly on June 28, 2022, 07:47:24 PM »

I flew a 300 hectare area over 2 days with my DJI Matrice 200 using a DJI 4XS camera.  I flew it in 2 days at 105m AGL with 85/80 overlap.  It took 21 seperate flights/battery changes. 

On day one, all went well until, for some reason, one flight suddenly began flying at double the speed.  The remaining flights that day went back to the programmed speed.  Needless to say, those images did not align properly.

Due to weather, I did not fly the remainder of the area until a week later.  All flights seemed to go well.

When I processed the data, the images taken at double the air speed did not align.  So, to fill in that area, I went back a 3rd day for a re-flight of only that small area.  When I tried to align the photos with the rest of the area, they were well over 100 m lower in elevation than the rest of the images.