plot_tiles: Plot slippy map tiles
Description
Create a new plot of tile rectangles, or add to an existing plot.
Usage
plot_tiles(
x,
...,
add = FALSE,
label = TRUE,
cex = 0.6,
add_coast = TRUE,
include_zoom = TRUE
)tiles_to_polygon(x)
Value
plot_tiles()
is called for its side-effect, a plot, and returns NULL
invisibly.
tiles_to_polygon returns a wk rct vector
Arguments
- x
tiles as create by ceramic_tiles()
- ...
arguments passed to graphics::rect()
- add
add to an existing plot?
- label
include text label?
- cex
relative size of text label if drawn (see text()
)
- add_coast
include a basic coastline on the plot?
- include_zoom
include zoom level with text label if drawn?
Details
The extent ('xmin', 'xmax', 'ymin', 'ymax') is used directly to draw the tiles so must be in the
native Mercator coordinate system used by most tile servers.
Examples
Run this codeif (!is.null(get_api_key())) {
get_tiles_zoom(zoom = 1)
tiles <- ceramic_tiles(zoom = 1)
plot_tiles(tiles)
}
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