RDevDescMethods class for implementing an R graphics device with R functions

Description

This class is a structured

Objects from the Class

Objects can be created by calls of the form new("RDevDescMethods", ...). ~~ describe objects here ~~

Slots

activate:

Object of class "FunctionOrNULL" ~~

circle:

Object of class "FunctionOrNULL" ~~

clip:

Object of class "FunctionOrNULL" ~~

close:

Object of class "FunctionOrNULL" ~~

deactivate:

Object of class "FunctionOrNULL" ~~

locator:

Object of class "FunctionOrNULL" ~~

line:

Object of class "FunctionOrNULL" ~~

metricInfo:

Object of class "FunctionOrNULL" ~~

mode:

Object of class "FunctionOrNULL" ~~

newPage:

Object of class "FunctionOrNULL" ~~

polygon:

Object of class "FunctionOrNULL" ~~

polyline:

Object of class "FunctionOrNULL" ~~

rect:

Object of class "FunctionOrNULL" ~~

size:

Object of class "FunctionOrNULL" ~~

strWidth:

Object of class "FunctionOrNULL" ~~

text:

Object of class "FunctionOrNULL" ~~

onExit:

Object of class "FunctionOrNULL" ~~

getEvent:

Object of class "FunctionOrNULL" ~~

newFrameConfirm:

Object of class "FunctionOrNULL" ~~

textUTF8:

Object of class "FunctionOrNULL" ~~

strWidthUTF8:

Object of class "FunctionOrNULL" ~~

Extends

Class "CStruct-class", directly.

Methods

graphicsDevice

signature(name = "ANY", funcs = "RDevDescMethods"): create an R graphics device using the functions in the RDevDescMethods objects as graphical primitive operators

graphicsDevice

signature(name = "RDevDescMethods"): create an R graphics device using the functions in the RDevDescMethods objects as graphical primitive operators

Author(s)

Duncan Temple Lang

References

“The R Internals Manual”, R Development Core Team.

See Also

graphicsDevice

Examples

  dev = dummyDevice()
  dev@activate = function(dev) {
                    dev$right = 968
                    dev$bottom = 724
                 }

  dev@line = function(x1, y1, x2, y2, gcontext, dev) {
                sys.call()
                newXMLNode("line",
                            attrs = c(x1 = x1, y1 = y1, x2 = x2, y2 = y2),
                            class = "")
             }