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✨ Region#outline
author
Gwenn Le Bihan
date
(Oct 29, 2025, 11:26 PM +0100)
commit
c0b82674
c0b82674b06886119bd31ed5eb7f61046f18aac7
parent
cacf4a58
cacf4a58256a72e2b5f9d159d7843440205868d1
+22
+22
src/geometry/region.rs
+22
src/geometry/region.rs
···
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self.iter().filter(|Point(x, y)| x >= y)
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}
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/// Iterates all points outlining the region, in clockwise order starting from top-left
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pub fn outline(&self) -> impl Iterator<Item = Point> {
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let top_edge =
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(self.start.0..=self.end.0).map(move |x| Point(x, self.start.1));
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+
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let right_edge =
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(self.start.1 + 1..=self.end.1).map(move |y| Point(self.end.0, y));
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let bottom_edge = (self.start.0..self.end.0)
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.rev()
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.map(move |x| Point(x, self.end.1));
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let left_edge = (self.start.1 + 1..self.end.1)
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.rev()
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.map(move |y| Point(self.start.0, y));
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top_edge
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.chain(right_edge)
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.chain(bottom_edge)
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.chain(left_edge)
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}
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pub fn is_empty(&self) -> bool {
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self.width() == 0 || self.height() == 0
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}