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Author Topic: Black dots in imported LAS file  (Read 4166 times)

rurik

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Black dots in imported LAS file
« on: December 31, 2019, 01:27:07 AM »
Hello
I'm seeing something odd in an import from an LAS point cloud.
There is a band of black dots that seems oddly regular crossing the whole object.  When I open the same point cloud in other software I don't see this.
Could it be an issue with the normals?

See screenshot here


https://www.dropbox.com/s/35rk4i66fzd29t0/2019-12-30_17h23_16.png?dl=0

Thanks!

Alexey Pasumansky

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Re: Black dots in imported LAS file
« Reply #1 on: December 31, 2019, 11:54:26 AM »
Hello rurik,

Is it possible that the normals for these points are inverted?

Can you please try to switch the new to TopXY, select all points and use Tools Menu -> Dense Cloud -> Invert Point Normals command having "opposite normals" option enabled?
Best regards,
Alexey Pasumansky,
Agisoft LLC

rurik

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Re: Black dots in imported LAS file
« Reply #2 on: December 31, 2019, 06:53:43 PM »
That seems to have worked!  Thanks!