21 lines
721 B
Rust
21 lines
721 B
Rust
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#[macro_use]
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extern crate approx;
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extern crate nalgebra as na;
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use std::f32;
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use na::{Vector2, Point2, Isometry2};
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fn main() {
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let t = Isometry2::new(Vector2::new(1.0, 1.0), f32::consts::PI);
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let p = Point2::new(1.0, 0.0); // Will be affected by te rotation and the translation.
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let v = Vector2::x(); // Will *not* be affected by the translation.
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assert_relative_eq!(t * p, Point2::new(-1.0 + 1.0, 1.0));
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// ^^^^ │ ^^^^^^^^
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// rotated │ translated
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assert_relative_eq!(t * v, Vector2::new(-1.0, 0.0));
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// ^^^^^
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// rotated only
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}
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