isClosed

Check if the first and last coordinates of a coordinate matrix are
identical.

internal

spatial

Numerical integration of continuously differentiable
functions f(x,y) over simple closed polygonal domains.
The following cubature methods are implemented:
product Gauss cubature (Sommariva and Vianello, 2007,
<doi:10.1007/s10543-007-0131-2>),
the simple two-dimensional midpoint rule
(wrapping 'spatstat.geom' functions), and
adaptive cubature for radially symmetric functions via line
integrate() along the polygon boundary (Meyer and Held, 2014,
<doi:10.1214/14-AOAS743>, Supplement B).
For simple integration along the axes, the 'cubature' package
is more appropriate.

Sebastian Meyer

polyCub

Cubature over Polygonal Domains

Leonhard Held

Michael Hoehle

isClosed function

<dl><dt>coords</dt>
<dd>numeric coordinate matrix. It is interpreted by
<code><a href="/link/xy.coords?package=polyCub&version=0.9.1" data-mini-rdoc="polyCub::xy.coords">xy.coords</a></code>.</dd></dl>

Arguments

Check if Polygon is Closed — isClosed

<dl>

<dt>coords</dt>
<dd>numeric coordinate matrix. It is interpreted by
<code><a href='https://rdrr.io/r/grDevices/xy.coords.html'>xy.coords</a></code>.</dd>

</dl>

isClosed: Check if Polygon is Closed

Description

Usage

Value

Arguments