Draw polyline on a nativeRaster image

Source: R/nativeraster.R

Draw polyline on a nativeRaster image

nr_polyline(nr, x, y, colour = "black", op = 2L, close = FALSE)

Arguments

nr

nativeRaster image

x, y

Integer vectors of point/vertex coordinates

colour

Color as a character string. Either a standard R color or a hex colour of the form #rrggbbaa or #rrggbb

op

Drawing mode. Default: 2. Possible values: 0, 1, 2

0

Draw the integer value as-is into the nativeRaster. This mode is useful when you are using an indexed palette like many old school games (like AnotherWorld) and do not want the value interpreted as a colour and alpha blended when drawing etc

1

This operation performs a bitwise logical-or with the current value. This is needed for rendering in the AnotherWorld game engine.

2 (default)

Regular colour handing for standard pixel handling

close

Should the polyline be closed? I.e. should a line be drawn between the last point and the first point? Default: FALSE