engine: Functions for the LAScatalog processing engine not meant to...

In Jean-Romain/lidR: Airborne LiDAR Data Manipulation and Visualization for Forestry Applications

Functions for the LAScatalog processing engine not meant to be called directly by users

Description

Functions for the LAScatalog processing engine not meant to be called directly by users. They are exported for debugging and to simplify export of internal functions when processing in parallel

Usage

engine_apply(
  .CHUNKS,
  .FUN,
  .PROCESSOPT,
  .OUTPUTOPT,
  .GLOBALS = NULL,
  .AUTOREAD = FALSE,
  .AUTOCROP = FALSE,
  ...
)

engine_chunks(ctg, realignment = FALSE, plot = opt_progress(ctg))

engine_crop(x, bbox)

engine_merge(ctg, any_list, ...)

engine_write(x, path, drivers)

Arguments

.CHUNKS	list. list of LAScluster
.FUN	function. function that respects a template (see catalog_apply)
.PROCESSOPT	list. Processing option
.OUTPUTOPT	list. Output option
.GLOBALS	list. Force export of some object in workers
.AUTOREAD	bool. Enable autoread
.AUTOCROP	bool. Enable autocrop
...	parameters of .FUN
ctg	LAScatalog
realignment	FALSE or list(res = x, start = c(y,z)). Sometimes the chunk must be aligned with a raster, for example to ensure the continuity of the output. If the chunk size is 800 and the expected product is a raster with a resolution of 35, 800 and 35 are not compatible and will create 2 different partial pixels on the edges. The realignment option forces the chunk to fit the grid alignment.
plot	logical. Displays the chunk pattern.
x	LAS, Raster, stars, SpatRaster,sf, sfc, Spatial
bbox	bbox
any_list	list of LAS, Raster, stars, SpatRaster, sf, sfc, Spatial, data.frame
path	strings
drivers	list. Drivers of a LAScatalog

See Also

Other LAScatalog processing engine: engine_options

Other LAScatalog processing engine: engine_options

Jean-Romain/lidR documentation built on April 6, 2024, 9:41 p.m.