I am using lasinfo.exe to display the fields. I downloaded lastools separately for Windows.
-----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Howard Butler Sent: Thursday, July 23, 2009 12:55 PM To: [email protected] Subject: Re: [Liblas-devel] LAS file Coordinate Systems On Jul 23, 2009, at 1:39 PM, Patel, Ronak Avinash (US SSA) wrote: > Howard and Mateusz, > > Thanks for the help...really appreciate it. Haven't really found many > people out there that know the low levels as much as you guys do. > > I was looking at the LAS 1.2 spec and it says the Georeferencing > information requires the GeoKeyDirectoryTag Record. > > I am able to write that tag out but I see that lasinfo always shows > the > version to be 0.0.0 regardless of what I put in those fields. > > According to the spec, the data should be arranged: > > wKeyDirectoryVersion = 1 (2 bytes) > wKeyRevision = 1 (2 bytes) > wMinorRevision = 0 (2 bytes) > wNumberOfKeys = the number of sets of 4 unsigned shorts to follow > > I write out the above shorts and 0 out the rest of the data byte array > but lasinfo always shows 0.0.0 as the version. > > Is the spec wrong? Or is something else going on here that lasinfo and > libLAS are doing?? Are you linking libLAS with libgeotiff when you compile? libLAS completely ignores georeferencing if libgeotiff is not linked at compile time. Howard _______________________________________________ Liblas-devel mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/liblas-devel _______________________________________________ Liblas-devel mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/liblas-devel
