Extract: Extract or Replace Parts of a LAS* Object

In lidR: Airborne LiDAR Data Manipulation and Visualization for Forestry Applications

Extract or Replace Parts of a LAS* Object

Description

Operators acting on LAS* objects. However, some have modified behaviors to prevent some irrelevant modifications. Indeed, a LAS* object cannot contain anything, as the content is restricted by the LAS specifications. If a user attempts to use one of these functions inappropriately an informative error will be thrown.

Usage

## S4 method for signature 'LAS'
x$name

## S4 method for signature 'LAS,ANY,missing'
x[[i, j, ...]]

## S4 replacement method for signature 'LAS'
x$name <- value

## S4 replacement method for signature 'LAS,ANY,missing'
x[[i, j]] <- value

## S4 method for signature 'LAS,numeric,ANY'
x[i]

## S4 method for signature 'LAS,logical,ANY'
x[i]

## S4 method for signature 'LAS,sf,ANY'
x[i]

## S4 method for signature 'LAS,sfc,ANY'
x[i]

## S4 method for signature 'LAScatalog'
x$name

## S4 method for signature 'LAScatalog,ANY,missing'
x[[i, j, ...]]

## S4 method for signature 'LAScatalog,ANY,ANY'
x[i, j, ..., drop = FALSE]

## S4 method for signature 'LAScatalog,logical,ANY'
x[i]

## S4 method for signature 'LAScatalog,sf,ANY'
x[i]

## S4 method for signature 'LAScatalog,sfc,ANY'
x[i]

## S4 replacement method for signature 'LAScatalog,ANY,ANY'
x[[i, j]] <- value

## S4 replacement method for signature 'LAScatalog'
x$name <- value

## S4 method for signature 'LASheader'
x$name

## S4 replacement method for signature 'LASheader'
x$name <- value

## S4 method for signature 'LASheader,ANY,missing'
x[[i, j, ...]]

## S4 replacement method for signature 'LASheader,character,missing'
x[[i]] <- value

Arguments

x	A LAS* object
name	A literal character string or a name (possibly backtick quoted).
i	string, name of elements to extract or replace.
j	Unused.
...	Unused
value	typically an array-like R object of a similar class as x.
drop	Unused

Examples

LASfile <- system.file("extdata", "example.laz", package="rlas")
las = readLAS(LASfile)

las$Intensity
las[["Z"]]
las[["Number of points by return"]]

## Not run: 
las$Z = 2L
las[["Z"]] = 1:10
las$NewCol = 0
las[["NewCol"]] = 0

## End(Not run)

lidR documentation built on Sept. 11, 2024, 5:21 p.m.