On Oct 31, 2013, at 2:38 AM, andrea antonello <andrea.antone...@gmail.com> wrote:
> Hi everyone, I hope this is not OT. > I wanted to ask a short advice on a las file content problem. > > I wanted to get a short comment about how GPS Week Time is seen in the > las format. > > Let's assume the las file format is prior to 1.2, so no encoding > information is available to open possibility for adjusted gps time. > > In that case, is it so that the Gps Week Time is just the seconds in > the week, without any information about the week? > I was under the assumption that the format of GPS Week Time would be > "week.time" as content of the double, hence giving a full timestamp > information. > > I can't find a document exactly specifying this, the las specs just > state: "GPS Time: The GPS time is the double floating point time tag > value at which the point was acquired." > > It is interesting, since I often found the header's date not being > accurate (and seems to reflect the file modification date), making it > impossible for me to define a unique timestamp. > > Thanks for any comment, or link to docs. This item is quite off-topic for this mailing list. I suggest emailing the following google group for access to more LAS implementors and knowledgable folks. https://groups.google.com/forum/#!forum/lasroom Howard _______________________________________________ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss