[pdal] Documentation on using PDAL

[César Martínez Izquierdo]

Just to clarify my previous email, I mean using PDAL using its C++ API (not
from the command line).

César

On 15 April 2016 at 11:06, César Martínez Izquierdo <cesar.izq at gmail.com>
wrote:

> Dear list,
>
> I'm evaluating using PDAL to read and write LAS files. My use case is
> focused on the following requirements:
> - accessing to individual points on the LAS files (sometimes sequentially
> and sometimes to specific records using record number)
> - learning about LAS file properties (coordinate reference system of the
> data, number of records, existing fields [which depends on the record point
> type in use], etc)
> - creating new LAS files and writing individual points to them
> - appending individual points to existing LAS files, maybe also editing or
> deleting existing points
>
> Is PDAL able to satisfy these use cases? I have read the online
> documentation, but it seems to be really focused on translating from one
> format to another one, and there is little information about how to
> actually accessing the points.
>
> The "Writing with PDAL" tutorial [http://www.pdal.io/tutorial/writing.html]
> gives me some light on the writing part, but I still don't see if it really
> matches our use case. If I correctly understand the tutorial, you have to
> first create a PointTable and a PointView, which I guess are created
> on-memory.
>
> Is there a way to "stream" the points to the writer? Otherwise I believe
> this approach is not feasible for writing big LAS files. Would be possible
> to create the writer on "append" mode and to feed it with several
> PointViews on a loop for instance?. Will this approach perform well or is
> there a better way to do it?
>
> Thanks in advance,
>
> César Martínez Izquierdo
>
>
>
>
> --
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>    César Martínez Izquierdo
>    GIS developer
>    -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
>    SCOLAB: http://www.scolab.es
> - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
>



-- 
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   César Martínez Izquierdo
   GIS developer
   -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -  -
   SCOLAB: http://www.scolab.es
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
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