Messages

1

General / Updating Drone Data in a small area over larger Drone suvey

« on: January 14, 2025, 06:45:50 AM »

HI There,
Hope you can help.
I Drone surveyed a large golf course recently, there have been small works over a few (2) Greens and they want this updated to reflect that. What's the best way to go about this? I don't want to re fly the whole site again.
Appreciate your help.
Thanks
Allan

2

Bug Reports / Re: The model moves and rotates during creation.

« on: December 20, 2024, 12:42:17 AM »

Please not I can create the model in the right place from a DEM, but get the error creating from the point cloud.

3

Bug Reports / Re: The model moves and rotates during creation.

« on: December 20, 2024, 12:36:19 AM »

Hi Alexey,
I import the las files (100) then I merge them into 1. Remove all the others not useful. I then save the job, classify, build model from ground points, then i hit this issue....
Hope this helps.
Thanks
Allan

4

Bug Reports / Re: The model moves and rotates during creation.

« on: December 12, 2024, 06:18:45 AM »

Hi
I get the same issue on this very large job. The whole job has moved and rotated.....Very strange , a bug Id say.
Thanks
Allan

5

General / Re: Once model created its been rotated 90 degrees

« on: November 26, 2024, 02:26:51 AM »

Not the case, I built a DEM with the same point cloud classified model and processed perfectly, I then used the DEM to create the model. I think its a Bug.....

6

General / Once model created its been rotated 90 degrees

« on: November 25, 2024, 11:06:35 PM »

Hi There,
Working on a large imported point cloud from LiDAR, i have been able to classify it but my issue is when created a model of the ground, its now rotated 90 degrees?? Id say a bug but need a fix, file is massive also 108 million faces.
Thanks
Allan

7

Bug Reports / Re: Automatic Ground Classification issue in version 2.0.0 and 2.0.1

« on: January 10, 2024, 01:17:38 AM »

Latest update rectified the issue? I don't want to upgrade unless it has? Thanks

8

Bug Reports / Re: Automatic Ground Classification issue in version 2.0.0 and 2.0.1

« on: November 27, 2023, 03:02:00 AM »

Still no fixes for this I gather?

9

General / Re: Datum Transformation / Coordinate Shift

« on: December 14, 2022, 06:20:19 AM »

Hi Guys,
I need something like this but to process the job GRID to GROUND, all GPS/RTK data is on GRID but i need to scale the job from a known point. Do you know if there is a way?
Thanks
Allan

10

General / GRID TO GROUND or process workflow PHANTOM4 RTK AND GPS RTK CONTROL

« on: December 08, 2022, 01:31:33 AM »

Hi There,

I am using a Phantom4 RTK unit and have both GPS RTK control and Images from the drone on GRID and id like to know the work flow to process this job on Ground or move it. The scale factor is about 305mm per kilometer so over my job about 1.5km the error from grid to ground will be about 0.5m.

I am working on MGA 2020 Zone 55 in New South Wales Australia.

the CSF CONVVERGENCE AUSGOID2020 SCALE FACTOR IS 0.999695 AT  Permanent Mark 1605 MGA2020 644062.882 5966592.975 zone 55 RL 1003.52


Appreciate if you can help.

Thanks

Allan

11

General / Phantom 4 RTK Errors

« on: September 12, 2022, 09:45:39 AM »

HI There,
Im trying to work out why my RTK errors are considerable and the flag sits quite far from the cross. The job is in rural New South Wales. I did another job close to Sydney and was perfect. Id just like to know why these rural jobs seem to have a bigger error. Appreciate anyone can shed some light.
Thanks
Allan

12

Camera Calibration / Re: Phantom 4 RTK - camera parameters

« on: February 15, 2022, 04:46:36 AM »

HI David,
Can you be more specific please? Im having the same issues...
Thanks
Allan

13

General / CGP's and altitude

« on: August 16, 2021, 10:14:28 AM »

HI There,
I am using many GCP's for a large area, but my results are not coming back at a good accuracy.
When I have added the flag to the GCP's like 4-6 I then optimize camera alignment. Should i be able to then check the marker height to the imported CSV height, they are about 150mm different? SDhould the height get adopted to the csv always?
see attachement...
Thanks
Allan

14

General / 3Dconnection not working on update?

« on: July 18, 2019, 06:46:37 AM »

HI
I Have just updated The latest version 1.5.3 8469 and have notices the 3Dconnexion mouse is nos missing?
Any ideas?

15

General / Re: DJI Phantom 4 RTK

« on: October 18, 2018, 01:34:49 AM »

RTK might be good, but working for a Surveying Company, how do you check your RTK Data? We always use independent ground control to check at least 10 areas randomly, a lot of people out there just think its correct, without any checks, pass data to client.

Note: We had some LIDAR data captured for us by drone, we checked their RTK data with our Ground control, its was OVER 2m OUT!! BEWARE!!

We now do the work ourselves.

They made bad mistakes, Trust your Surveyor!