rlas v1.3.2

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Read and Write 'las' and 'laz' Binary File Formats Used for Remote Sensing Data

Read and write 'las' and 'laz' binary file formats. The LAS file format is a public file format for the interchange of 3-dimensional point cloud data between data users. The LAS specifications are approved by the American Society for Photogrammetry and Remote Sensing <https://www.asprs.org/committee-general/laser-las-file-format-exchange-activities.html>. The LAZ file format is an open and lossless compression scheme for binary LAS format versions 1.0 to 1.3 <https://www.laszip.org/>.

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R package to read and write .las and .laz binary files used to store LiDAR data.

rlas relies on a modified version of LASlib and LASzip that were modified to be compatible with R. The library can therefore be compiled into R without any complaints from R CMD check. It enables R users to read and write binary files commonly used to store LiDAR data. LAS version 1.0 to 1.4 are supported. Point data record format 0,1,2,3,6,7,8 are supported.

library(rlas)
lasdata   <- read.las("<myfile.las>")
lasheader <- read.lasheader("<myfile.las>")

rlas contains code written by both Jean-Romain Roussel and Martin Isenburg. The latter is included for technical reasons. Details below.

  • For LASlib and LASzip:
    • (c) 2007-2015 martin.isenburg@rapidlasso.com - http://rapidlasso.com
    • Provided under LGPL license and modified to be R-compliant by Jean-Romain Roussel.
  • For rlas code enabling Martin Isenburg's code to be wrapped into R:
    • (c) 2016-2018 Jean-Romain Roussel
    • Provided under GPL-3 license.

Functions in rlas

Name Description
writelax Write a .lax file from a .las or .laz file
las_specification_tools A set of function to test conformance with LAS specifications
public_header_block_tools Public Header Block Tools
check_las_validity Check if data and headers respect the LAS specification
crs_tools Coordinate Reference System Tools
read.las Read data from a .las or .laz file
read.lasheader Read header from a .las or .laz file
check_data Deprecated functions kept for compatibility with the lidR package versions <= 2.0.0
extra_bytes_attribute_tools Extra Bytes Attributes Tools
write.las Write a .las or .laz file
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Details

Type Package
Date 2019-04-26
URL https://github.com/Jean-Romain/rlas
BugReports https://github.com/Jean-Romain/rlas/issues
License GPL-3
LazyData true
RoxygenNote 6.1.1
LinkingTo Rcpp,BH
Encoding UTF-8
NeedsCompilation yes
Packaged 2019-04-26 15:49:35 UTC; jr
Repository CRAN
Date/Publication 2019-04-27 05:00:14 UTC

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