pub type PointD = PD;
Double-precision point (PointD); same layout as cxx PD.
PointD
PD
双精度点,布局与 cxx PD 一致。
#[repr(C)]pub struct PointD { pub x: f64, pub y: f64, }
x: f64
y: f64
Creates a point. / 构造点。