Point cloud decimates with zoom

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fiachradunne
Posts: 1
Joined: Sat Oct 01, 2016 12:44 pm

Point cloud decimates with zoom

Post by fiachradunne »

Problem: Sometimes when I load a point cloud it appears in lines of dots as if there is some sort of grid running through it, this is especially noticeable when zooming in close. Is this a setting in CloudCompare that can be turned off? The top image shows the point cloud of a building area. The bottom image shows how the ame area looks in CloudCompare.
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Agisoft cloud.jpg
Agisoft cloud.jpg (17.26 KiB) Viewed 1289 times
CloudCompare grid lines in cloud.PNG
CloudCompare grid lines in cloud.PNG (206.98 KiB) Viewed 1289 times
daniel
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Joined: Wed Oct 13, 2010 7:34 am
Location: Grenoble, France
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Re: Point cloud decimates with zoom

Post by daniel »

Have you accepted to shift your cloud at loading time? It looks like an accuracy issue, which is typical of clouds with large coordinates (CC and OpenGL use 32 bits floating point coordinates, and can't handle large coordinates properly).
Daniel, CloudCompare admin
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