Description Usage Arguments Details Value Author(s) See Also
Determine whether a window is a rectangle, a polygonal region, or a binary mask.
1 2 3 | is.rectangle(w)
is.polygonal(w)
is.mask(w)
|
w |
Window to be inspected. An object of class |
These simple functions determine whether a window w
(object of class "owin"
) is
a rectangle (is.rectangle(w) = TRUE
),
a domain with polygonal boundary (is.polygonal(w) = TRUE
),
or
a binary pixel mask (is.mask(w) = TRUE
).
Logical value, equal to TRUE
if w
is a window
of the specified type.
and \rolf
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