draw function

Draw a line or polygon

Draw a line or polygon on a plot (map) and save it for later use. After calling the function, start clicking on the map. To finish, right-click and select 'stop'.

drawPoly(sp=TRUE, col='red', lwd=2, ...)
drawLine(sp=TRUE, col='red', lwd=2, ...)

Arguments

• sp: logical. If TRUE, the output will be a sp object (SpatialPolygons or SpatialLines). Otherwise a matrix of coordinates is returned
• col: the color of the lines to be drawn
• lwd: the width of the lines to be drawn
• ...: additional arguments padded to locator

Returns

If sp==TRUE a SpatialPolygons or SpatialLines object; otherwise a matrix of coordinates

See Also

locator