Extracts the boundary edges of a window
 and returns them as a line segment pattern.

edges

Defines spatial data types and supports geometrical operations
on them. Data types include point patterns, windows (domains),
pixel images, line segment patterns, tessellations and hyperframes.
Capabilities include creation and manipulation of data
(using command line or graphical interaction),
plotting, geometrical operations (rotation, shift, rescale,
affine transformation), convex hull, discretisation and
pixellation, Dirichlet tessellation, Delaunay triangulation,
pairwise distances, nearest-neighbour distances,
distance transform, morphological operations
(erosion, dilation, closing, opening), quadrat counting,
geometrical measurement, geometrical covariance,
colour maps, calculus on spatial domains,
Gaussian blur, level sets of images, transects of images,
intersections between objects, minimum distance matching.
(Excludes spatial data on a network, which are supported by
the package 'spatstat.linnet'.)

Adrian Baddeley

spatstat.geom

Geometrical Functionality of the 'spatstat' Family

Rolf Turner

Ege Rubak

Warick Brown

Tilman Davies

Ute Hahn

Martin Hazelton

Abdollah Jalilian

Greg McSwiggan

Sebastian Meyer

Jens Oehlschlaegel

Suman Rakshit

Dominic Schuhmacher

Rasmus Waagepetersen

edges function

Extract Boundary Edges of a Window. — edges

<dl>

 <dt>x</dt>
<dd>A window (object of class <code>"owin"</code>), or
 data acceptable to <code>as.owin</code>, specifying the window
 whose boundary is to be extracted.</dd>

 <dt>...</dt>
<dd>Ignored.</dd>

 <dt>window</dt>
<dd>Window to contain the resulting line segments.
 Defaults to <code>as.rectangle(x)</code>.</dd>

 <dt>check</dt>
<dd>Logical. Whether to check the validity of the resulting
 segment pattern.</dd>

</dl>

Arguments

Adrian Baddeley <a href='mailto:Adrian.Baddeley@curtin.edu.au'>Adrian.Baddeley@curtin.edu.au</a>, Rolf Turner <a href='mailto:rolfturner@posteo.net'>rolfturner@posteo.net</a> and Ege Rubak <a href='mailto:rubak@math.aau.dk'>rubak@math.aau.dk</a>.

Author

Extract Boundary Edges of a Window.

edges: Extract Boundary Edges of a Window.

Description

Usage

Arguments

Value

Details

See Also

Examples