[pdal] Loading several LAS files

[Oscar Martinez Rubi]

Hi,

I figured out what what happening and I will share it with you just in 
case somebody has the same issue. I realized that the format that I 
added in pointcloud_formats was not matching the format of the LAS files 
(the format I added in the table was only X,Y,Z and the LAS format has 
many more attributes). The issue if that if this happens the format I 
add is ignored and a new format which is the one in the LAS file is used 
which is fine but there is not any error or warning message so I had no 
clue that was happening. In the end I realized of that (I thought the 
LAS file only contained XYZ) and I just added a filter in the XML to 
only use XYZ. Now, the correct format is being used and my parameters 
are not ignored.

Regards,

O.


On 30-10-13 09:12, Oscar Martinez Rubi wrote:
>
> Hi,
>
> I am trying to load several LAS files into Postgres PointCloud using 
> the PDAL pcpipeline.
>
> First I add the format in the table pointcloud_formats, basically I 
> only have X, Y and Z, and the pcid is 1
>
> Then I create a table:
>
> CREATE TABLE patches (
>     id SERIAL PRIMARY KEY,
>     pa PCPATCH(1)
> );
>
> And then I run a pcpipeline for each LAS file with the following XML 
> (changing [input File] in each case)
>
> <?xml version="1.0" encoding="utf-8"?>
>     <Pipeline version="1.0">
>         <Writer type="drivers.pgpointcloud.writer">
>             <Option name="connection">host='localhost' 
> dbname='testload' </Option>
>             <Option name="table">patches</Option>
>             <Option name="srid">7415</Option>
>             <Filter type="filters.chipper">
>                 <Option name="capacity">400</Option>
>                 <Filter type="filters.cache">
>                     <Option name="max_cache_blocks">1</Option>
>                     <Reader type="drivers.las.reader">
>                         <Option name="filename">[inputFile]</Option>
>                         <Option name="spatialreference">EPSG:7415</Option>
>                     </Reader>
>                 </Filter>
>             </Filter>
>         </Writer>
>     </Pipeline>
>
> I realized that each pcpipeline execution overwrites the patches 
> table, so in the end it is like I only loaded the last LAS file. I 
> have tried to use the option overwrite=false but it seems to be 
> ignored. Also when I try to use a table name different than "patches" 
> it is also ignored. And I also realized that pcpipiline also adds a 
> format in the table pointcloud_formats and use this when overwriting 
> the patches table. Also using the option pcid in the XML is ignored.
>
> Is anybody else having issues when trying to load several LAS files?
>
> Thank you
>
> Oscar
>
>
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