get_asp_ratio: Get aspect ratio
In tmaptools: Thematic Map Tools

Description Usage Arguments Details Value Examples

Get the aspect ratio of a shape object, a tmap object, or a bounding box

1	get_asp_ratio(x, is.projected = NA, width = 700, height = 700, res = 100)

`x`	A shape from class `sf`, `stars`, `sp`, or `Raster`, a bounding box (that can be coerced by `bb`), or a `tmap` object.
`is.projected`	Logical that determined wether the coordinates of `x` are projected (`TRUE`) or longitude latitude coordinates (`FALSE`). By deafult, it is determined by the coordinates of `x`.
`width`	See details; only applicable if `x` is a `tmap` object.
`height`	See details; only applicable if `x` is a `tmap` object.
`res`	See details; only applicable if `x` is a `tmap` object.

The arguments width, height, and res are passed on to png. If x is a tmap object, a temporarily png image is created to calculate the aspect ratio of a tmap object. The default size of this image is 700 by 700 pixels at 100 dpi.

aspect ratio

if (require(tmap) && packageVersion("tmap") >= "2.0") {
    data(World)

    get_asp_ratio(World)

    get_asp_ratio(bb(World))

    tm <- qtm(World)
    get_asp_ratio(tm)
}

## Not run: 
    get_asp_ratio("Germany") #note: bb("Germany") uses geocode_OSM("Germany")

## End(Not run)