Internal grDevices Functions

Description

Internal grDevices functions

Usage

.clipPath(fun, rule) 
.defineGroup(source, op, destination) 
.devUp() 
.linearGradientPattern(colours = c("black", "white"),
                       stops = seq(0, 1, length.out = length(colours)), 
                       x1 = 0, y1 = 0, x2 = 1, y2 = 1, extend = "pad") 
.mask(fun, type) 
.opIndex(x) 
.radialGradientPattern(colours = c("black", "white"),
                       stops = seq(0, 1, length.out = length(colours)), 
                       cx1 = 0, cy1 = 0, r1 = 0,
                       cx2 = 1, cy2 = 1, r2 = 0.5,
                       extend = "pad") 
.ruleIndex(x) 
.setClipPath(path, index) 
.setMask(mask, ref) 
.setPattern(pattern) 
.tilingPattern(fun, x, y, width, height, extend) 
.useGroup(ref, trans) 

Details

These are used for communication between the graphics engine and graphics systems, graphics and grid, and are not to be called by the user.