[pdal] Migrating from libLAS

[Vaclav Petras]

On Thu, Sep 3, 2015 at 6:40 PM, Newcomb, Doug <doug_newcomb at fws.gov> wrote:

> On Thu, Sep 3, 2015 at 6:22 PM, Vaclav Petras <wenzeslaus at gmail.com>
> wrote:
>
>>
>> On Thu, Sep 3, 2015 at 5:14 PM, Newcomb, Doug <doug_newcomb at fws.gov>
>> wrote:
>>
>>> r.in.lidar input=aggregated.las output=skewness_60_ft_5ft_to_canopy_top
>>>  z_mode=hag base_dem=aggrgated_dem.vrt zrange=5,250 method=skewness
>>>
>>> z_mode would be either height above ground (hag) or datum (height from
>>> datum - default)
>>>
>>
>> I'm not sure what is z_mode=datum. Isn't this just subtract value from z
>> (offset)?
>>
>
> Hey, I was trying to be fancy:-) .  Original or absolute would work just
> as well.
>

OK, "z = z - z_base_dem" is in libLAS-based r.in.lidar now [1]. See
grass-dev mailing list [2].

Vaclav

[1] https://lists.osgeo.org/pipermail/grass-dev/2015-September/076147.html
[2] https://trac.osgeo.org/grass/changeset/66094
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