Cairo.capture

Cairo.snapshot

device number or an object of the class <code>Cairo</code> (as
    obtained from the <code><a href="/link/Cairo?package=Cairo&version=1.5-7" rd-options="" data-mini-rdoc="Cairo::Cairo">Cairo</a></code> function).

device

logical, if <code>FALSE</code> then a new snapshot is created
    (exactly the same as <code>recordPlot()</code>), if <code>TRUE</code> then the last
    known snapshot is retrieved, if <code>NA</code> then a snapshot is created
    first, but if the disp

last

<code>Cairo.capture</code> is essentially the same as
  <code>dev.capture(native=TRUE)</code> with the exception that it works where
  <code>dev.capture</code> doesn't such as <code>onSave</code> callbacks.<p></p><p>  <code>Cairo.snapshot</code> is very similar to <code>recordPlot</code> except it
  also allows to retrieve the last snapshot.</p>

This package provides a Cairo graphics device that can be use to create high-quality vector (PDF, PostScript and SVG) and bitmap output (PNG,JPEG,TIFF), and high-quality rendering in displays (X11 and Win32). Since it uses the same back-end for all output, copying across formats is WYSIWYG. Files are created without the dependence on X11 or other external programs. This device supports alpha channel (semi-transparent drawing) and resulting images can contain transparent and semi-transparent regions. It is ideal for use in server environments (file output) and as a replacement for other devices that don't have Cairo's capabilities such as alpha support or anti-aliasing. Backends are modular such that any subset of backends is supported.

Simon Urbanek

Cairo

R graphics device using cairo graphics library for creating
        high-quality bitmap (PNG, JPEG, TIFF), vector (PDF, SVG,
        PostScript) and display (X11 and Win32) output

Cairo.capture: Capture contents of an image backend or a display list snapshot.

Description

Usage

Arguments

Value