[OSGeo-Discuss] Can someone test a program with point clouds?

Pierre Abbat phma at bezitopo.org
Sat Apr 18 18:02:24 PDT 2020

On Saturday, April 18, 2020 6:11:24 AM EDT Rajat Shinde wrote:
> -- Resending it again with reduced size, please ignore if received twice. --

Reduced size??

> Thanks for the detailed instructions.
> Initially, I tried with a huge point cloud scene but it was getting
> difficult to visualize so then I sampled a small subset out of it. The
> subset is having a valley sort of and hence it was expected to produce
> steep triangles. All the experimental results are in the attached zip file.
> The experiments were done for Release 0.3.3
> <https://github.com/phma/perfecttin/releases/tag/0.3.3>, 0.3.6
> <https://github.com/phma/perfecttin/releases/tag/0.3.6> and 0.4.0rc1
> (master).
> As mentioned, the spikes are visible in 0.3.3 but it gets pretty smooth and
> smaller in 0.3.6 and 0.4.0rc1. Please check it. I have also added some
> screenshots for visual comparison.
> Not sure about the attachment size on the mailing list, so the results can
> also be accessed here
> <https://drive.google.com/drive/folders/1D9fAAooisQCO5BH_Ir12pyLe84Cqmy0z?us
> p=sharing> .
> I hope of not missing out on anything. Please let me know if I did.
> I would love to see Dr Steer's reply; he is really point cloud heavy and I
> have been following his articles lately. :)

I see some screenshots of PerfectTIN and some files which I won't try to 
download until 2:00, so that I don't run down my data allotment. What tool did 
you use to turn the TINs so that you could see spikes? Do you have some point 
clouds with holes where objects such as houses or cars were removed?

ve ka'a ro klaji la .romas. se jmaji

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