R: Draw a polygon, line, extent, or points

draw {terra} | R Documentation

## Draw a polygon, line, extent, or points

### Description

Draw on a plot (map) to get a SpatVector or SpatExtent object for later use. After calling the function, start clicking on the map. When you are done, press `ESC`. You can also preset the maximum number of clicks.

### Usage

    ## S4 method for signature 'character'
    draw(x="extent", col="red", lwd=2, id=FALSE, n=1000, ...)

### Arguments

`x` | character. The type of object to draw. One of "extent", "polygon", "line", or "points"
`col` | the color to be used
`lwd` | the width of the lines to be drawn
`id` | logical. If `TRUE`, a numeric ID is shown on the map
`n` | the maximum number of clicks (does not apply when `x=="extent"` in which case `n` is always 2
`...` | additional graphics arguments for drawing

### Value

SpatVector or SpatExtent

### See Also

`click`

[Package terra version 1.4-7 Index]