Surface covered by a `LAS*`

object. For `LAS`

point clouds it is computed based on the
convex hull of the points. For a `LAScatalog`

it is computed as the sum of the bounding boxes
of the files. For overlapping tiles the value may be larger than the total covered area because
some regions are sampled twice. For a `LASheader`

it is computed with the bounding box. The
function `npoints`

does what the user may expect it to do and the function `density`

is
equivalent to `npoints(x)/area(x)`

. As a consequence for the same file `area`

applied on
a LASheader or on a LAS can return slightly different values.

`area(x, ...)`# S4 method for LAS
area(x, ...)

# S4 method for LASheader
area(x, ...)

# S4 method for LAScatalog
area(x, ...)

npoints(x, ...)

# S4 method for LAS
npoints(x, ...)

# S4 method for LASheader
npoints(x, ...)

# S4 method for LAScatalog
npoints(x, ...)

density(x, ...)

# S4 method for LAS
density(x, ...)

# S4 method for LASheader
density(x, ...)

# S4 method for LAScatalog
density(x, ...)

x

An object of the class `LAS*`

.

...

unused.

numeric. A number. Notice that for area the measure is in the same units as the coordinate reference system.