PictureMask-class

grobify,PictureMask-method

applyTransform,PictureMask,matrix-method

A description of a luminance mask.

Functions for importing external vector images and
drawing them as part of 'R' plots.  This package is different from the
'grImport' package because, where that package imports 'PostScript'
format images, this package imports 'SVG' format images.  Furthermore,
this package imports a specific subset of 'SVG', so external images
must be preprocessed using a package like 'rsvg' to produce 'SVG'
that this package can import.  'SVG' features that are not supported
by 'R' graphics, e.g., gradient fills, can be imported and then
exported via the 'gridSVG' package.

Paul Murrell

grImport2

Importing 'SVG' Graphics

Simon Potter

PictureMask-class function

<dl>
 <dt><code>content</code>:</dt>
<dd>Object of class <code>"list"</code>. A list of <code>"PictureContent"</code>
 objects that are use to define the mask. Typically objects that
 actually draw content (e.g. a path or a rect).</dd> 
</dl>

Slots

Class <code>PictureContent</code>, directly.

Extends

<dl>
 <dt>applyTransform</dt>
<dd><code>signature(object = "PictureMask", tm = "matrix")</code>:
 transforms the locations described by contents of the mask object
 by a 3x3 transformation matrix and returns a <code>"PictureMask"</code>
 object whose children have had locations transformed by the matrix.</dd> <dt>grobify</dt>
<dd><code>signature(object = "PictureMask")</code>: creates a mask object
 for use with the gridSVG package. Not intended to be used
 directly.
There are three arguments to this <code>grobify</code> method:
<dl>
 <dt><code>defs</code></dt>
<dd>An object of class <code>"PictureDefinitions"</code>. This object is
 primarily useful in conjunction with the gridSVG package.</dd></dl></dd> <dt><code>gpFUN</code></dt>
<dd>This argument takes a function that takes a <code>gpar</code> object
 and returns a modified <code>gpar</code> object. The default value
 is the identity function.</dd> <dt><code>ext</code></dt>
<dd>A character vector. See <code>grid.picture</code> for more
 information on what this extension selection parameter means,
 in addition to the valid values this argument takes.</dd> 
</dl>

Methods

Author

Class "PictureMask" — PictureMask-class

<dl>
 <dt><code>content</code>:</dt>
<dd>Object of class <code>"list"</code>. A list of <code>"PictureContent"</code>
 objects that are use to define the mask. Typically objects that
 actually draw content (e.g. a path or a rect).</dd>

 
</dl>

<dl>
 <dt>applyTransform</dt>
<dd><code>signature(object = "PictureMask", tm = "matrix")</code>:
 transforms the locations described by contents of the mask object
 by a 3x3 transformation matrix and returns a <code>"PictureMask"</code>
 object whose children have had locations transformed by the matrix.</dd>

 <dt>grobify</dt>
<dd><code>signature(object = "PictureMask")</code>: creates a mask object
 for use with the gridSVG package. Not intended to be used
 directly.
There are three arguments to this <code>grobify</code> method:
<dl>
 <dt><code>defs</code></dt>
<dd>An object of class <code>"PictureDefinitions"</code>. This object is
 primarily useful in conjunction with the gridSVG package.</dd>

 <dt><code>gpFUN</code></dt>
<dd>This argument takes a function that takes a <code>gpar</code> object
 and returns a modified <code>gpar</code> object. The default value
 is the identity function.</dd>

 <dt><code>ext</code></dt>
<dd>A character vector. See <code>grid.picture</code> for more
 information on what this extension selection parameter means,
 in addition to the valid values this argument takes.</dd>

 
</dl></dd>

 
</dl>

PictureMask-class: Class `"PictureMask"`

Description

Arguments

Slots

Extends

Methods

Author