xyListFromGrob

This function generates a set of coordinates 
 (a list of (x,y) lists) from a grob.

 aplot 

 dplot 

Functions for performing polygon geometry with 'grid' grobs.
This allows complex shapes to be defined by combining simpler
shapes.

Paul Murrell

gridGeometry

Polygon Geometry in 'grid'

Jack Wong

xyListFromGrob function

<dl> <dt>x</dt>
<dd>A grob.</dd> <dt>op</dt>
<dd>A character value describing the operation to be used if 
 <code>x</code> needs to be collapsed to a single shape. One of
 <code>"intersection"</code>, <code>"minus"</code>, <code>"union"</code>, or
 <code>"xor"</code>.
Can also be <code>"flatten"</code>, which just
 returns an (x, y) list for each shape the grob draws.
 This is usually the best choice when <code>closed = FALSE</code>.</dd> <dt>closed</dt>
<dd>A logical value indicating whether we coordinates describing
 a closed shape or an open shape from.</dd> <dt>...</dt>
<dd>Arguments passed on to <code>polyclip</code>.</dd></dl>

Arguments

Author

Generate Coordinates from Grobs — xyListFromGrob

<dl>

 <dt>x</dt>
<dd>A grob.</dd>

 <dt>op</dt>
<dd>A character value describing the operation to be used if 
 <code>x</code> needs to be collapsed to a single shape. One of
 <code>"intersection"</code>, <code>"minus"</code>, <code>"union"</code>, or
 <code>"xor"</code>.
Can also be <code>"flatten"</code>, which just
 returns an (x, y) list for each shape the grob draws.
 This is usually the best choice when <code>closed = FALSE</code>.</dd>

 <dt>closed</dt>
<dd>A logical value indicating whether we coordinates describing
 a closed shape or an open shape from.</dd>

 <dt>...</dt>
<dd>Arguments passed on to <code>polyclip</code>.</dd>

</dl>

xyListFromGrob: Generate Coordinates from Grobs

Description

Usage

Value

Arguments

Author

See Also

Examples