opencv/manual/core/
scalar.rs

1use num_traits::Zero;
2
3use super::VecN;
4
5/// [docs.opencv.org](https://docs.opencv.org/4.x/d1/da0/classcv_1_1Scalar__.html)
6pub type Scalar_<T> = VecN<T, 4>;
7
8impl<T> Scalar_<T> {
9	#[inline]
10	pub const fn new(v0: T, v1: T, v2: T, v3: T) -> Self {
11		Self::from_array([v0, v1, v2, v3])
12	}
13
14	/// returns true iff v1 == v2 == v3 == 0
15	#[inline]
16	pub fn is_real(&self) -> bool
17	where
18		T: Zero + PartialEq,
19	{
20		self[1] == T::zero() && self[2] == T::zero() && self[3] == T::zero()
21	}
22}
23
24impl<T: Zero> From<T> for Scalar_<T> {
25	#[inline]
26	fn from(v0: T) -> Self {
27		Self::from_array([v0, T::zero(), T::zero(), T::zero()])
28	}
29}
30
31impl From<i32> for Scalar_<f64> {
32	#[inline]
33	fn from(v0: i32) -> Self {
34		Self::from(f64::from(v0))
35	}
36}
37
38impl<T: Zero> From<(T, T)> for Scalar_<T> {
39	#[inline]
40	fn from(v: (T, T)) -> Self {
41		Self::from_array([v.0, v.1, T::zero(), T::zero()])
42	}
43}
44
45impl From<(i32, i32)> for Scalar_<f64> {
46	#[inline]
47	fn from(v: (i32, i32)) -> Self {
48		Self::from((f64::from(v.0), f64::from(v.1)))
49	}
50}
51
52impl<T: Zero> From<(T, T, T)> for Scalar_<T> {
53	#[inline]
54	fn from(v: (T, T, T)) -> Self {
55		Self::from_array([v.0, v.1, v.2, T::zero()])
56	}
57}
58
59impl From<(i32, i32, i32)> for Scalar_<f64> {
60	#[inline]
61	fn from(v: (i32, i32, i32)) -> Self {
62		Self::from((f64::from(v.0), f64::from(v.1), f64::from(v.2)))
63	}
64}
65
66impl<T> From<(T, T, T, T)> for Scalar_<T> {
67	#[inline]
68	fn from(v: (T, T, T, T)) -> Self {
69		Self::from_array([v.0, v.1, v.2, v.3])
70	}
71}
72
73impl From<(i32, i32, i32, i32)> for Scalar_<f64> {
74	#[inline]
75	fn from(v: (i32, i32, i32, i32)) -> Self {
76		Self::from((f64::from(v.0), f64::from(v.1), f64::from(v.2), f64::from(v.3)))
77	}
78}
79
80impl From<VecN<u8, 3>> for Scalar_<f64> {
81	#[inline]
82	fn from(v: VecN<u8, 3>) -> Self {
83		Self::from((f64::from(v[0]), f64::from(v[1]), f64::from(v[2])))
84	}
85}
opencv/manual/core/scalar.rs

opencv/manual/core/
scalar.rs
