[Liblas-devel] Squeeze me

[Finnegan, David ERDC-CRREL-NH]

Understandably, but wouldn't you do that prior to LAS and during post flight
processing?
D
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----- Original Message -----
From: liblas-devel-bounces at lists.osgeo.org
<liblas-devel-bounces at lists.osgeo.org>
To: Liblas-devel at lists.osgeo.org <liblas-devel at lists.osgeo.org>; Etienne
Bellemare Racine <etiennebr at gmail.com>
Sent: Mon Mar 08 17:27:17 2010
Subject: Re: [Liblas-devel] Squeeze me

Etienne wrote:
> I was wondering if it would be possible, to add an option to also
> order the points coordinates in a spatial order instead of
> (I think) a temporal one, it would be much faster to scan
> the file that way to extract any point. within a given
> coordinate. Would it enter in the laszip specifications ? Of
> course, it would be much slower to write, I know, but it
> would be for a longtime gain in speed of reading. What do
> you think ?

I have no problem with optional switches, but realize that this
is a lossy operation, there is useful info in the temporal order.
e.g. if some glitch makes the nav go wonky for 5 minutes or
calibration drifts with time (eg temperature), you can filter
it out if still stored in sequential order.


regards,
Hamish



      
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