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polygon_signed_area
atmos
0.1.0
In atmos::
os_
lib::
canvas2d
atmos
::
os_lib
::
canvas2d
Function
polygon_
signed_
area
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Source
pub fn polygon_signed_area(pts: &[(
f32
,
f32
)]) ->
f32
Expand description
多角形の符号付き面積を計算する(画面座標系: Y下向き)。