lidR: catalog_makechunks – R documentation

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catalog_makechunks

Subdivide a LAScatalog into chunks

Description

Virtually subdivide a LAScatalog into chunks. This function is an internal function exported to users in version 3.0.0 because it might be useful for some debugging purposes. It might also be useful for some advanced developers. Regular users are not expected to use this function. The chunks are made according to the catalog processing options.

Usage

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

Arguments

`ctg`	an object of class `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 aligment.
`plot`	logical. Displays the chunk pattern.

Value

A list containing objects of class LAScluster.

lidR

Airborne LiDAR Data Manipulation and Visualization for Forestry Applications

v3.1.2

GPL-3

Authors

Jean-Romain Roussel [aut, cre, cph], David Auty [aut, ctb] (Reviews the documentation), Florian De Boissieu [ctb] (Fixed bugs and improved catalog features), Andrew Sánchez Meador [ctb] (Implemented wing2015() for segment_snags()), Bourdon Jean-François [ctb] (Contributed to Roussel2020() for track_sensor()), Gatziolis Demetrios [ctb] (Implemented Gatziolis2019() for track_sensor())

Initial release

2021-03-11