nalgebra/examples/point_construction.rs

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Rust
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extern crate nalgebra as na;
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use na::{Point3, Vector3, Vector4};
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fn main() {
// Build using components directly.
let p0 = Point3::new(2.0, 3.0, 4.0);
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// Build from a coordinates vector.
let coords = Vector3::new(2.0, 3.0, 4.0);
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let p1 = Point3::from(coords);
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// Build by translating the origin.
let translation = Vector3::new(2.0, 3.0, 4.0);
let p2 = Point3::origin() + translation;
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// Build from homogeneous coordinates. The last component of the
// vector will be removed and all other components divided by 10.0.
let homogeneous_coords = Vector4::new(20.0, 30.0, 40.0, 10.0);
let p3 = Point3::from_homogeneous(homogeneous_coords);
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assert_eq!(p0, p1);
assert_eq!(p0, p2);
assert_eq!(p0, p3.unwrap());
}