opencv 0.29.3

Rust bindings for OpenCV
Documentation 
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use std::ops::{Add, AddAssign, Div, DivAssign, Mul, MulAssign, Sub, SubAssign};

use num::{NumCast, ToPrimitive, Zero};

use crate::core::{Point_, ValidPointType, ValidVecType, Vec3};

valid_types!(ValidPoint3Type, i32, f32, f64);

#[repr(C)]
#[derive(Copy, Clone, Debug, Default, PartialEq, PartialOrd)]
/// [docs.opencv.org](https://docs.opencv.org/master/df/d6c/classcv_1_1Point3__.html)
pub struct Point3_<T: ValidPoint3Type> {
    pub x: T,
    pub y: T,
    pub z: T,
}

impl<T: ValidPoint3Type> Point3_<T> {
    #[inline]
    pub fn new(x: T, y: T, z: T) -> Self {
        Self { x, y, z }
    }

    #[inline]
    pub fn from_vec3(vec: Vec3<T>) -> Self where T: ValidVecType {
        Self::new(vec[0], vec[1], vec[2])
    }

    #[inline]
    pub fn from_point(pt: Point_<T>) -> Self where T: ValidPointType + Zero {
        Self::new(pt.x, pt.y, T::zero())
    }

    #[inline]
    pub fn cross(self, pt: Point3_<T>) -> Point3_<T> {
        Self::new(
            self.y * pt.z - self.z * pt.y,
            self.z * pt.x - self.x * pt.z,
            self.x * pt.y - self.y * pt.x,
        )
    }

    #[inline]
    pub fn dot(self, pt: Point3_<T>) -> T {
        self.x * pt.x + self.y * pt.y + self.z * pt.z
    }

    #[inline]
    pub fn ddot(self, pt: Point3_<T>) -> f64 where f64: From<T> {
        let self_x: f64 = From::from(self.x);
        let self_y: f64 = From::from(self.y);
        let self_z: f64 = From::from(self.z);
        let pt_x: f64 = From::from(pt.x);
        let pt_y: f64 = From::from(pt.y);
        let pt_z: f64 = From::from(pt.z);
        self_x * pt_x + self_y * pt_y + self_z * pt_z
    }

    #[inline]
    pub fn norm(self) -> f64 where f64: From<T> {
        let self_x: f64 = From::from(self.x);
        let self_y: f64 = From::from(self.y);
        let self_z: f64 = From::from(self.z);
        (self_x.powi(2) + self_y.powi(2) + self_z.powi(2)).sqrt()
    }

    #[inline]
    pub fn to<D: ValidPoint3Type + NumCast>(self) -> Option<Point3_<D>> where T: ToPrimitive {
        Some(Point3_::new(D::from(self.x)?, D::from(self.y)?, D::from(self.z)?))
    }
}

impl<T> Add for Point3_<T>
    where
        T: ValidPoint3Type + AddAssign,
{
    type Output = Point3_<T>;

    fn add(mut self, rhs: Point3_<T>) -> Self::Output {
        self += rhs;
        self
    }
}

impl<T> Sub for Point3_<T>
    where
        T: ValidPoint3Type + SubAssign,
{
    type Output = Point3_<T>;

    fn sub(mut self, rhs: Point3_<T>) -> Self::Output {
        self -= rhs;
        self
    }
}

impl<T> Mul<T> for Point3_<T>
    where
        T: ValidPoint3Type + MulAssign
{
    type Output = Point3_<T>;

    fn mul(mut self, rhs: T) -> Self::Output {
        self *= rhs;
        self
    }
}

impl<T> Div<T> for Point3_<T>
    where
        T: ValidPoint3Type + DivAssign
{
    type Output = Point3_<T>;

    fn div(mut self, rhs: T) -> Self::Output {
        self /= rhs;
        self
    }
}

impl<T> AddAssign for Point3_<T>
    where
        T: ValidPoint3Type + AddAssign,
{
    fn add_assign(&mut self, rhs: Point3_<T>) {
        self.x += rhs.x;
        self.y += rhs.y;
        self.z += rhs.z;
    }
}

impl<T> SubAssign for Point3_<T>
    where
        T: ValidPoint3Type + SubAssign,
{
    fn sub_assign(&mut self, rhs: Point3_<T>) {
        self.x -= rhs.x;
        self.y -= rhs.y;
        self.z -= rhs.z;
    }
}

impl<T> MulAssign<T> for Point3_<T>
    where
        T: ValidPoint3Type + MulAssign
{
    fn mul_assign(&mut self, rhs: T) {
        self.x *= rhs;
        self.y *= rhs;
        self.z *= rhs;
    }
}

impl<T> DivAssign<T> for Point3_<T>
    where
        T: ValidPoint3Type + DivAssign
{
    fn div_assign(&mut self, rhs: T) {
        self.x /= rhs;
        self.y /= rhs;
        self.z /= rhs;
    }
}