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Smoothing Lidar Data
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Sam Cech



Joined: 14 Oct 2005
Posts: 2486

New Zealand

PostPosted: Wed 16 Nov, 2016 7:46 pm    Post subject: Reply with quote

Alex

see menu Strings=>Grids
or
File => data input => point clouds
and I think you can grid lidar on the fly while importing...

grid strings and grid tins produce better results

sam
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Sam

Tatras Consulting Ltd
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Juho Rossi



Joined: 22 Mar 2017
Posts: 1

New South Wales, Australia

PostPosted: Wed 22 Mar, 2017 2:57 pm    Post subject: Reply with quote

Hi,

Is there a way of filtering the point cloud by height above and below a tin?

I am trying to filter out overhanging branches and power-lines out of my data set.

I have tried the function:

Delete Points; Point Cloud Delete Points by Tin

But it seems to delete the entire tin surface regardless the
"distance above tin (+ve)" and "distance below tin (-ve)" values.

or is there an easy way of deleting the unwanted triangles without leaving too many black holes once i have generated the grid tin of the point cloud?

Thanks,

Juho
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Lee Gregory
12d Support


Joined: 29 Sep 2005
Posts: 1494

PostPosted: Wed 22 Mar, 2017 6:20 pm    Post subject: Reply with quote

Hmm - that is a strange wording on the panel.
I don't know what it means by Distance below tin (-ve) .
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paul hardwick



Joined: 06 Dec 2007
Posts: 677

Queensland, Australia

PostPosted: Wed 22 Mar, 2017 9:13 pm    Post subject: Reply with quote

Yeah I found this option to be the reverse of my logic.
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Paul Hardwick
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