is.convex

0th

Percentile

Test Whether a Window is Convex

Determines whether a window is convex.

Keywords
manip, spatial
Usage
is.convex(x)
Arguments
x

Window (object of class "owin").

Details

If x is a rectangle, the result is TRUE.

If x is polygonal, the result is TRUE if x consists of a single polygon and this polygon is equal to the minimal convex hull of its vertices computed by chull.

If x is a mask, the algorithm first extracts all boundary pixels of x using vertices. Then it computes the (polygonal) convex hull \(K\) of the boundary pixels. The result is TRUE if every boundary pixel lies within one pixel diameter of an edge of \(K\).

Value

Logical value, equal to TRUE if x is convex.

See Also

owin, convexhull.xy, vertices

Aliases
  • is.convex
Documentation reproduced from package spatstat, version 1.55-1, License: GPL (>= 2)

Community examples

Looks like there are no examples yet.