[pdal] [Filters] Decimation built into a reader

[GUIMMARA, Sébastien (External)]

Hello everyone,

I’m trying to import a massive point cloud as a collection of LAS files (6GB, 27 files), and I realized that my desktop computer simply couldn’t handle the memory footprint of such a massive dataset.

So I’m putting a decimation filter to reduce the size, but I’m having a doubt: is the filter useful here or is the dataset entirely loaded into memory before even applying the filter ? In other words, does the downstream filters controls how the upstream reader loads data into memory ?

If not, would it be a nice feature to include to some (all ?) readers ? Like a builtin decimation/sampling filter.

Sébastien



[cid:imageed0be7.JPG at e745fb5d.469e3497] Please consider the environment before printing this email message.

________________________________

Ce courriel (incluant ses éventuelles pièces jointes) peut contenir des informations confidentielles et/ou protégées ou dont la diffusion est restreinte. Si vous avez reçu ce courriel par erreur, vous ne devez ni le copier, ni l'utiliser, ni en divulguer le contenu à quiconque. Merci d'en avertir immédiatement l'expéditeur et d'effacer ce courriel de votre système. Airbus DS Geo décline toute responsabilité en cas de corruption par virus, d'altération ou de falsification de ce courriel lors de sa transmission par voie électronique.

This email (including any attachments) may contain confidential and/or privileged information or information otherwise protected from disclosure. If you are not the intended recipient, please notify the sender immediately, do not copy this message or any attachments and do not use it for any purpose or disclose its content to any person, but delete this message and any attachments from your system. Airbus DS Geo disclaims any and all liability if this email transmission was virus corrupted, altered or falsified.

________________________________

Airbus DS Geo SA (325 089 589 RCS Toulouse) - Siege social: 5, rue des Satellites, 31400 Toulouse, France.


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/pdal/attachments/20170615/845a7561/attachment.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: imageed0be7.JPG
Type: image/jpeg
Size: 625 bytes
Desc: imageed0be7.JPG
URL: <http://lists.osgeo.org/pipermail/pdal/attachments/20170615/845a7561/attachment.jpe>