[pdal] Sample code for using PipelineExecutor from 3rd Party

[Howard Butler]

> On Jun 29, 2017, at 11:48 AM, Paul Schrum <paul.schrum at gmail.com> wrote:
> 
> Hi.  I am the GSoC 2017 student working on integrating PDAL into GRASS.
> 
> Howard Butler recommended to me a few weeks back that I use the Pipeline Executor class in my work.  I have been looking over www.pdal.io <http://www.pdal.io/> seeking examples of how to call pdal from third party code, but I am having trouble finding anything.  I also looked at https://github.com/PDAL/PDAL/tree/master/examples <https://github.com/PDAL/PDAL/tree/master/examples> , but I don't see anything as basic as what I need.


The Python extension is a good example to follow. 

https://github.com/PDAL/PDAL/blob/master/pdal/PipelineExecutor.hpp <https://github.com/PDAL/PDAL/blob/master/pdal/PipelineExecutor.hpp>

https://github.com/PDAL/PDAL/blob/master/python/pdal/PyPipeline.cpp <https://github.com/PDAL/PDAL/blob/master/python/pdal/PyPipeline.cpp>


> Can someone help me find such a page that I can use as a go-by?

You have to dig in the code.

> He also mentioned one-at-a-time mode, but I also don't see the documentation on that.  Is it by some other name at https://www.pdal.io/api/index.html <https://www.pdal.io/api/index.html> ?

Let's get bulk read working first before we work through processOne and streaming...

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