Uses Bresenham's algorithm to draw lines. No antialiasing.
nr_line(nr, x0, y0, x1, y1, colour = "black", op = 2L)nativeRaster image
Coordinates of endpoints of line. [vector]
Color as a character string. Either a standard R color
or a hex colour of the form #rrggbbaa or #rrggbb
Drawing mode. Default: 2. Possible values: 0, 1, 2
0Draw 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
1This 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