66 lines
2.2 KiB
Rust
66 lines
2.2 KiB
Rust
use crate::base::allocator::Allocator;
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use crate::base::{DefaultAllocator, DimName, Scalar};
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use crate::geometry::{Point, Point2, Point3};
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use typenum::{self, Cmp, Greater};
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macro_rules! impl_swizzle {
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($( where $BaseDim: ident: $( $name: ident() -> $Result: ident[$($i: expr),+] ),+ ;)* ) => {
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$(
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impl<N: Scalar, D: DimName> Point<N, D>
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where
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DefaultAllocator: Allocator<N, D>,
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D::Value: Cmp<typenum::$BaseDim, Output=Greater>
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{
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$(
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/// Builds a new point from components of `self`.
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#[inline]
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pub fn $name(&self) -> $Result<N> {
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$Result::new($(self[$i].inlined_clone()),*)
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}
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)*
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}
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)*
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}
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}
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impl_swizzle!(
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where U0: xx() -> Point2[0, 0],
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xxx() -> Point3[0, 0, 0];
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where U1: xy() -> Point2[0, 1],
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yx() -> Point2[1, 0],
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yy() -> Point2[1, 1],
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xxy() -> Point3[0, 0, 1],
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xyx() -> Point3[0, 1, 0],
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xyy() -> Point3[0, 1, 1],
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yxx() -> Point3[1, 0, 0],
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yxy() -> Point3[1, 0, 1],
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yyx() -> Point3[1, 1, 0],
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yyy() -> Point3[1, 1, 1];
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where U2: xz() -> Point2[0, 2],
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yz() -> Point2[1, 2],
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zx() -> Point2[2, 0],
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zy() -> Point2[2, 1],
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zz() -> Point2[2, 2],
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xxz() -> Point3[0, 0, 2],
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xyz() -> Point3[0, 1, 2],
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xzx() -> Point3[0, 2, 0],
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xzy() -> Point3[0, 2, 1],
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xzz() -> Point3[0, 2, 2],
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yxz() -> Point3[1, 0, 2],
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yyz() -> Point3[1, 1, 2],
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yzx() -> Point3[1, 2, 0],
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yzy() -> Point3[1, 2, 1],
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yzz() -> Point3[1, 2, 2],
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zxx() -> Point3[2, 0, 0],
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zxy() -> Point3[2, 0, 1],
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zxz() -> Point3[2, 0, 2],
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zyx() -> Point3[2, 1, 0],
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zyy() -> Point3[2, 1, 1],
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zyz() -> Point3[2, 1, 2],
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zzx() -> Point3[2, 2, 0],
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zzy() -> Point3[2, 2, 1],
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zzz() -> Point3[2, 2, 2];
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);
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