Specifies icons from a png images, which can be used as markers in thematic maps. The function marker_icon is the specification of the default marker.
tmap_icons(
file,
width = 48,
height = 48,
keep.asp = TRUE,
just = c("center", "center"),
as.local = TRUE,
...
)marker_icon()
character value/vector containing the file path(s) or url(s).
width of the icon. If keep.asp, this is interpreted as the maximum width.
height of the icon. If keep.asp, this is interpreted as the maximum height.
keep the aspect ratio of the png image. If TRUE and the aspect ratio differs from width/height either width or height is adjusted accordingly.
justification of the icons relative to the point coordinates. The first value specifies horizontal and the second value vertical justification. Possible values are: "left" , "right", "center", "bottom", and "top". Numeric values of 0 specify left alignment and 1 right alignment. The default value of just is c("center", "center").
if the file is a url, should it be saved to local temporary file?
arguments passed on to icons. When iconWidth, iconHeight, iconAnchorX and iconAnchorY are specified, they override width and height, and just.
icon data (see icons)