Large Project Point Cloud does not show

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robjlg
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Large Project Point Cloud does not show

Post by robjlg »

SCENE generated a Project Point Cloud for a 1293 scenes project. This PPC has 9.3 billions points. SCENE does not show it in 3D view.

I added a small clipping box but also does not show. I exported the PPC with this clipping box enabled, and the points inside it was exported as expected.

I need SCENE show this PPC. Has anyone face this problem before? Any away to make SCENE show a large PPC as this one?

Tested on SCENE 2021.5, 2022.1 and 2022.2 on 2 workstations. PPC generated 2x and the same result. Also tested the old SCENE 5 workaround described in the topic below:
https://laserscanningforum.com/forum/v ... 3&start=10

I need to deliver this project and this was a very bad surprise. A bit desperate right now!

Thank you

Roberto
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Re: Large Project Point Cloud does not show

Post by robjlg »

More info about Project Point Cloud not showing... I did rebuild the PPC with an decimation in order to reduce the number of points. SCENE have genarate a PPC with 6.7 Billions points but it still does not show it.

In my last big project the PPC have more points ( 11 Billions ) and SCENE shows it with no problem. So the problems is not doe to the PPC size. The differences are on the number of scenes: 654, most of it at 1/4 resolution. The project with problem in PPC has 1293 scenes ( 1/8 ) and far more clusters.

I'm still trying to figure out what cause the problem and to generate an usable PPC but the time is consuming very quickly
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Re: Large Project Point Cloud does not show

Post by Raimund58 »

Does it work if you delete every scan except for three scans and create a project point cloud?
Could it be that your origin is very far away? Huge coordinates caused me a lot of trouble in the past.
\o/
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Re: Large Project Point Cloud does not show

Post by Raimund58 »

Another option that can help with performance: Create a new project -> Put only the PPC from _3PointData (Revisions) into the new project -> Open the project.
Except for the speedup in project opening, it might help with other stuff too.
\o/
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Re: Large Project Point Cloud does not show

Post by Emanuele »

have you checked that there are no active clipboxes?
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Re: Large Project Point Cloud does not show

Post by Raimund58 »

Emanuele wrote: Mon Feb 06, 2023 4:33 pm have you checked that there are no active clipboxes?
Hehe, that would be a classic mistake. Forgot about that : )
\o/
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Re: Large Project Point Cloud does not show

Post by robjlg »

Thank you for the responses.

There are no clipping box!

But there is a clue that catches my eyes. When viewing the scan point cloud, orthographic top view, I ask to create an Auto Clipping Box. The clipping box it creates goes far below the point cloud. Screenshots below. As if there were points there. I can not see those points far below.

I decided to try another test, on the front view, went far back and selected a large area below the points. Nothing appears but the select menu allowed me to delete the points selected. I clicked on delete.

After, I saved the project: It took hours to complete. All 1293 FLS was rewritten in the new revision folder. After I deleted the PPC, saved the project and closed SCENE, opened it again and made a project clean. After I closed SCENE, turned off the computer; turned it on and opened SCENE again I commanded the PPC generation. It is still processing at the moment, 45% after 15 hours! Something has changed because the last PPCs for this project took 12~13 hours to complete.

I hope this time the PPC will show me his face.

Please let me know if you want more info

Thank you

Roberto

Below shows the position of the AUTO clipping box. The points cloud is near 750 m and the clipping box center at -1635 !!!

2023-02-06__16_39_02-Window.png

2023-02-06__16_33_15-_XXXXX_CLUSTER_ClippingBoxes_ClippingBox.png
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Re: Large Project Point Cloud does not show

Post by robjlg »

The PPC finally worked! Very happy now!

Thank you for trying to help me! I appreciate it
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