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 reference set. The composite rule for multiple returns within a single grid cell can be set with the option FC-compF[0]. The default attribute is z (height), but can also be intensity (if available), the scan angle rank (FC-nF[0] angle), the return number (FC-nF[0] return) or the total number of returns in that grid cell (FC-nF[0] nreturn). To select specific returns only, set the option FC-firF[0] (first, last, single, multiple, or all).
OPTIONS
- FC-iF[0] filename, FC--inputF[0] filename
-
Input las file
- FC-oF[0] filename, FC--outputF[0] filename
-
Output image file
- FC-nF[0] attribute, FC--nameF[0] attribute
-
names of the attribute to select: intensity, angle, return, nreturn, spacing, z
- FC-compF[0] composite, FC--compF[0] 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
- FC-firF[0] type, FC--filterF[0] type
-
filter las points (first,last,single,multiple,all).
- FC-angle_minF[0] value, FC--angle_minF[0] value
-
minimum scan angle to read points.
- FC-angle_maxF[0] value, FC--angle_maxF[0] value
-
maximum scan angle to read points.
- FC-a_srsF[0] EPSG:number, FC--a_srsF[0] EPSG:number
-
assign the projection for the output file in epsg code, e.g., epsg:3035 for European LAEA projection
- FC-ulxF[0] value, FC--ulxF[0] value
-
Upper left x value bounding box (in geocoordinates if georef is true). 0 is read from input file
- FC-ulyF[0] value, FC--ulyF[0] value
-
Upper left y value bounding box (in geocoordinates if georef is true). 0 is read from input file
- FC-lrxF[0] value, FC--lrxF[0] value
-
Lower right x value bounding box (in geocoordinates if georef is true). 0 is read from input file
- FC-lryF[0] value, FC--lryF[0] value
-
Lower right y value bounding box (in geocoordinates if georef is true). 0 is read from input file
- FC-dxF[0] value, FC--dxF[0] value
-
Output resolution in x (in meter)
- FC-dyF[0] value, FC--dyF[0] value
-
Output resolution in y (in meter)
- FC-otF[0] type, FC--otypeF[0] type
-
Data type for output image ({Byte / Int16 / UInt16 / UInt32 / Int32 / Float32 / Float64 / CInt16 / CInt32 / CFloat32 / CFloat64}). Empty string: inherit type from input image
- FC-ofF[0] out_format, FC--oformatF[0] out_format
-
Output image format (see also gdal_translate(1)).
- FC-retF[0] value, FC--retF[0] value
-
number(s) of returns to include
- FC-classF[0] number, FC--classF[0] 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)
- FC-vF[0] level, FC--verboseF[0] level
-
verbose mode
Advanced options
- FC-nbinF[0] value, FC--nbinF[0] value
-
Number of percentile bins for calculating percentile height value profile (=number of output bands)
- FC-nodataF[0] value, FC--nodataF[0] value
-
nodata value to put in image if not valid
- FC-coF[0] option, FC--coF[0] option
-
Creation option for output file. Multiple options can be specified.
- FC-ctF[0] filename, FC--ctF[0] filename
-
colour table in ASCII format having 5 columns: id R G B ALFA (0: transparent, 255: solid)