Draw polygon on a nativeRaster image

Source: R/nativeraster.R

Draw polygon on a nativeRaster image

nr_polygon(nr, x, y, fill = "black", colour = NA, op = 2L)

Arguments

nr

nativeRaster image

x, y

Integer vectors of point/vertex coordinates

fill

fill colour [scalar]

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