LAS 1.0/1.1 LiDAR data format translation
Project description
libLAS is a BSD library for reading and writing ASPRS LAS version 1.0 and 1.1 data. LAS-formatted data is heavily used in LiDAR processing operations, and the LAS format is a sequential binary format used to store data from sensors and as intermediate processing storage by some applications.
libLAS is available under the terms of the BSD License. It builds on work by Martin Isenburg and Jonathan Shewchuk of the University of North Carolina in their LAStools project. The base C++ library that reads and writes LAS 1.0/1.1 data was replaced with new development, and Martin’s tools were ported to use this new code.
libLAS’ initial development was supported by the IGSB of the Iowa DNR for use in its state-wide LIDAR project.
FAQ
The FAQ is available from http://liblas.org/wiki/FAQ
State of the Library
libLAS provides excellent coverage of the ASPRS LAS 1.0 and 1.1 specifications, and it provides support for copying variable length records from one file to another. As of 0.9.7, support for creating your own variable length records is limited to the C++ API only. libLAS concentrates on reading and writing point data for processing pipelines from C++, C, and Python. Contact the Authors if you have money burning a hole in your pocket to implement more sophisticated support for LAS format items.
libLAS also provides support for reading spatial reference system descriptions from LAS 1.0 and 1.1 files as of version 0.9.7. libgeotiff 1.2.5 must be linked with libLAS to provide reading support for spatial reference systems. The 0.9.7 Windows binaries come provided with libgeotiff, but those folks building libLAS on their own platforms must use the –with-geotiff configure-time switch to tell libLAS where the library is located.
Download
The latest version of libLAS can be downloaded from http://liblas.org/wiki/Releases
Documentation
LAS Format Specifications
The LAS Format Standard is maintained by ASPRS Standards Committee. LAS format standard documents are available in PDF format:
LAS 2.0 Format Standard (2007-08-17) - Proposed
LAS 1.2 Format Standard (2008-05-02) - Proposed
LAS 1.1 Format Standard (2005-05-07)
LAS 1.0 Format Standard (2003-05-09)
Library Documents
LAS Format Elements - comparison of elements of LAS Format 1.0 and 1.1
Software - list of geospatial software with reading and writing capabilities of LAS Format
Resources - list of LiDAR/LAS resources
Tutorials - Tutorials on C++ and Python APIs
Utilities
Development
Subversion Tree
The SVN repository URL is available at http://liblas.org/svn
svn checkout http://liblas.org/svn/trunk/
Development Documentation
Information about Trac
Trac Open Source Project
TracGuide - Built-in Documentation
TracFaq - Frequently Asked Questions
TracSupport - Trac Support
Community
IRC
Find the libLAS developers on IRC on #liblas at Freenode.
Mailing Lists
liblas-devel - http://mail.hobu.net/mailman/listinfo/liblas-devel
liblas-commits - http://mail.hobu.net/mailman/listinfo/liblas-commits
License
libLAS is available under the terms of the BSD License. See License for a copy.
Release history Release notifications | RSS feed
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