[pdal] [EXTERNAL] Re: Migrating from libLAS

[Newcomb, Doug]

+1

On Thu, Sep 3, 2015 at 6:57 PM, Smith, Michael ERDC-CRREL-NH <
Michael.Smith at usace.army.mil> wrote:

> Pdal does have something like lasbuidvrt, it's pdal tindex. I'm working to
> get Howard and Andrew to support the tindex as a source format.
>
> --
> Michael Smith
> Remote Sensing GIS Center
> US Army Corps of Engineers
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> *From: *Newcomb, Doug
> *Sent: *Thursday, September 3, 2015 6:42 PM
> *To: *Vaclav Petras
> *Cc: *pdal
> *Subject: *[EXTERNAL] Re: [pdal] Migrating from libLAS
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> On Thu, Sep 3, 2015 at 6:22 PM, Vaclav Petras <wenzeslaus at gmail.com>
> wrote:
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>> 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)
>>>
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>> I'm not sure what is z_mode=datum. Isn't this just subtract value from z
>> (offset)?
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> Hey, I was trying to be fancy:-) .  Original or absolute would work just
> as well.
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>> But anyway, speaking just about GRASS GIS, it is surely possible for
>> v.in.lidar (although with significant slow down but trivial
>> implementation). I guess it is possible for r.in.lidar as well. I'm not
>> sure how scalable (in terms of number of points) it would be when using
>> PDAL. It seems that PDAL can limit it when doing processing but apparently
>> there are ways
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>> around it at least for some cases but nothing like lasbuildvrt to paste
>> together several files without actually merging them.
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> Well, I did say it was a dream world :-)
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> Doug
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> --
> Doug Newcomb
> USFWS
> Raleigh, NC
> 919-856-4520 ext. 14 doug_newcomb at fws.gov
>
> ---------------------------------------------------------------------------------------------------------
> The opinions I express are my own and are not representative of the
> official policy of the U.S.Fish and Wildlife Service or Dept. of the
> Interior   Life is too short for undocumented, proprietary data formats.
>



-- 
Doug Newcomb
USFWS
Raleigh, NC
919-856-4520 ext. 14 doug_newcomb at fws.gov
---------------------------------------------------------------------------------------------------------
The opinions I express are my own and are not representative of the
official policy of the U.S.Fish and Wildlife Service or Dept. of the
Interior.   Life is too short for undocumented, proprietary data formats.
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