Messages

1

General / Re: Align imported point cloud file

« on: February 07, 2025, 06:41:03 PM »

Hi Alexey. So on my end, I have tried to georeferencing with markers on an imported point cloud (an unstructured point cloud in my case), but it doesn't georeference correctly from all I have tried. My residuals end up being much larger than they should be (and have validated it in other software), and I have no way to see after the fact in Metashape what the parameters of the transformation where to validate.

I am assuming it should do a 7 parameter transformation when doing this, but it doesn't seem to be as I am not sure it is applying a scale to the transform (which is should in many cases).

I actually have an open support ticket with you guys as well that I haven't received a response back in for well over a month now (Ticket 210358).

Would appreciate a reply when possible.

2

General / Re: Local to projected coordinate system of point cloud

« on: November 15, 2024, 06:09:09 PM »

Hi Ben. I really appreciate you looking into this for me, but it still doesn't seem to work for me.

I can import the csv markers fine and select the actual coordinate system (in the case UTM Zone 11), and it does change the coordinate system in the reference page and the markers import in the correction location (with the background globe view).

But the initial point cloud is still not visible at all, and if I have the "unlock transform" set it gives me the error of "unsupported datum transformation". Also, the initial dense cloud still has "local" set in the metadata for the scan itself.

I tried playing around a few different ways with it, but still no dice for me.

3

General / Re: Local to projected coordinate system of point cloud

« on: November 14, 2024, 05:33:47 PM »

Hi Ben. No, I was never able to resolve this yet.

4

General / Re: Local to projected coordinate system of point cloud

« on: September 18, 2024, 06:08:37 PM »

So I think I may have found the issue, but sure how to resolve.

With just an imported point cloud in a chunk and I change the reference coordinates between say UTM and Local,  the region bounds is what seems to get confused. I found in some other posts that the region is defined by the sparse cloud or even by the image locations, however, with just an imported point cloud I have neither of these.

I set some markers manually in the chunk (keying in values) and can zoom to those points, but the region is somewhere far gone from there. And if I reset the region, it says "unsupported datum transformation".

Is there a way to reset the region to my current view, or from the markers directly, etc.?

5

General / Re: Local to projected coordinate system of point cloud

« on: September 16, 2024, 04:58:31 PM »

Hey Ben. The workflow you suggest does work if you know and set the coordinate system info right off the bat in a project, but often times the coordinate information isn't known with some datasets immediately, etc.

However, maybe the issue is really even what "local" means in Agisoft. To me as a surveyor, local means whatever the heck I want it to be on a project (assumed 5000,5000 point, truncate UTM values, or to match building gridlines, etc.). However, I am not sure this is what it even means in Agisoft, but to me it makes sense it should.

6

General / Re: Align imported point cloud file

« on: September 16, 2024, 04:51:02 PM »

Thanks for the suggestion Ben, but no this doesn't help in this case that it alignment method is for terrestrial scans to align together (cloud to cloud).

7

General / Align imported point cloud file

« on: September 13, 2024, 06:40:59 PM »

I am looking for a way to align an imported point cloud in Agisoft to control. I often have to combine some datasets together (photogrammetry, SLAM, etc.), and hoping to do this in Agisoft if possible.

I have control points that overlap the point cloud but not sure if it is possible to align to them (as I haven't found a way to do it yet).

8

Feature Requests / Re: Import point cloud without normals compute

« on: September 10, 2024, 10:12:42 PM »

I second this on my end! Would be great to have the option to disable normal calculation on import. They are not always needed.

9

General / Re: Local to projected coordinate system of point cloud

« on: September 10, 2024, 04:47:23 PM »

The issue I have is that I don't want to it to transform the coordinates, but essentially just force the new projection for the data. As I said in this case, I had imported a dataset and had it initially set as local, but I wanted it to be redefined as UTM (but it is already in UTM coordinates) but keep the same N, E, Elev values.

10

General / Re: Local to projected coordinate system of point cloud

« on: August 30, 2024, 02:17:29 AM »

I wanted to bump this question if anyone has the answer?

11

General / Local to projected coordinate system of point cloud

« on: July 20, 2023, 12:58:19 AM »

I have some existing point clouds as las / laz that I have imported into Agisoft, and imported as a local coordinate system (as we weren't sure of the source initially). I also have a CSV of control that was imported (as local), and they match to my point cloud.

But now I want to assign the projection of the point cloud (but not actually tranform the dataset) to a UTM Zone that we use, but when changing the Coordinate System in the reference settings to UTM (or really any chosen projection), it seems to be okay for the Control and just changes XYZ to NEElev, but is completely transforms the point cloud to a different location.

Is there a step missing to do this as other software does??

12

General / Re: Look through image view shifted from tie points / control

« on: January 06, 2020, 10:46:06 PM »

Hi Alexey, I was able to add in the images to my initial post.

Kevin

13

General / Look through image view shifted from tie points / control

« on: December 23, 2019, 06:59:01 PM »

I have a real odd dataset right now that I can't figure out. It is of a runway collected by a sub using an Inspire and X5S camera. The images align fine, but they seem to be shifted / twisted from the tie points that are created (horizontally) and my survey control and I don't know why. They are all nadir imagery, so it isn't an oblique imagery issue at all.

The attached image shows the collected imaged on the right, and the look through of the same image on the left (with an orthographic view to show where the image is showing up. It appears the image is over the edge of the runway, but in fact it is much closer to the center of the runway. I have never seen a shift like this in all the projects I have collected over the years.

Also when I zoom out to just the point cloud with image locations, it appears all the image locations are shifted from the tie points, but in fact, they should be centered directly over the tie points.

I have tried to replicate with other imagery but can't do so, so I have no idea what is happening but open to suggestions.

**Note: i can't upload attachments for some reason at this time**

14

Feature Requests / Re: Background Map

« on: October 18, 2019, 04:02:14 PM »

So this is good for the DEM / Ortho, but the preference would be for the background map to be displayed in the model view as the main need. This way when images are imported and even reprojected, we can validate that it is being done properly. Same with when control is imported, all this is done in model view so having the background map there would be preferred.

It is almost too late in the game to have the background map at the DEM / Ortho view stages, as all the project info is typically set prior to this.

15

Feature Requests / Re: GCP vs Check Point Icon

« on: October 18, 2019, 03:58:57 PM »

Hi Alexey,

Primarily in model view when I am marking the control points, check shots, etc. So when I go thru the process of choosing which ones to hold as control and others to use as check points, they appear different in the model view (just to ensure I have proper placements / constraints visibly).