NAME

       pklas2img - Rasterize LAS/LAZ point clouds with filtering/compositing options

SYNOPSIS

       pklas2img -i lasfile -o output [options] [advanced options]

DESCRIPTION

       pklas2img converts a las/laz point cloud into a gridded raster dataset.  The implementation is based on
       liblas  ⟨http://www.liblas.org/⟩ API.  You can define the bounding box, grid cell size and spatial refer‐
       ence set.  The composite rule for multiple returns within a single grid cell can be set with  the  option
       -comp.   The  default  attribute  is z (height), but can also be intensity (if available), the scan angle
       rank (-n angle), the return number (-n return) or the total number of returns in that grid cell (-n  nre‐
       turn).  To select specific returns only, set the option -fir (first, last, single, multiple, or all).

OPTIONS

       -i filename, --input filename
              Input las file

       -o filename, --output filename
              Output image file

       -n attribute, --name attribute
              names of the attribute to select: intensity, angle, return, nreturn, spacing, z

       -comp composite, --comp composite
              composite  for  multiple points in cell (min, max, absmin, absmax, median, mean, sum, first, last,
              profile (percentile height values), number (point density)).  Last: overwrite  cells  with  latest
              point

       -fir type, --filter type
              filter las points (first,last,single,multiple,all).

       -angle_min value, --angle_min value
              minimum scan angle to read points.

       -angle_max value, --angle_max value
              maximum scan angle to read points.

       -a_srs EPSG:number, --a_srs EPSG:number
              assign  the projection for the output file in epsg code, e.g., epsg:3035 for European LAEA projec‐
              tion

       -ulx value, --ulx value
              Upper left x value bounding box (in geocoordinates if georef is true).  0 is read from input file

       -uly value, --uly value
              Upper left y value bounding box (in geocoordinates if georef is true).  0 is read from input file

       -lrx value, --lrx value
              Lower right x value bounding box (in geocoordinates if georef is true).  0 is read from input file

       -lry value, --lry value
              Lower right y value bounding box (in geocoordinates if georef is true).  0 is read from input file

       -dx value, --dx value
              Output resolution in x (in meter)

       -dy value, --dy value
              Output resolution in y (in meter)

       -ot type, --otype type
              Data type for output image ({Byte / Int16 / UInt16 / UInt32 / Int32 / Float32 / Float64 / CInt16 /
              CInt32 / CFloat32 / CFloat64}).  Empty string: inherit type from input image

       -of out_format, --oformat out_format
              Output image format (see also gdal_translate(1)).

       -ret value, --ret value
              number(s) of returns to include

       -class number, --class number
              classes to keep: 0 (created, never classified), 1 (unclassified), 2 (ground), 3 (low  vegetation),
              4  (medium  vegetation),  5  (high  vegetation), 6 (building), 7 (low point, noise), 8 (model key-
              point), 9 (water), 10 (reserved), 11 (reserved), 12 (overlap)

       -v level, --verbose level
              verbose mode

       Advanced options

       -nbin value, --nbin value
              Number of percentile bins for calculating percentile  height  value  profile  (=number  of  output
              bands)

       -nodata value, --nodata value
              nodata value to put in image if not valid

       -co option, --co option
              Creation option for output file.  Multiple options can be specified.

       -ct filename, --ct filename
              colour table in ASCII format having 5 columns: id R G B ALFA (0: transparent, 255: solid)

                                                10 February 2020                                    pklas2img(1)