57 lines
1.8 KiB
Rust
57 lines
1.8 KiB
Rust
// Copyright 2014 The CGMath Developers. For a full listing of the authors,
|
|
// refer to the Cargo.toml file at the top-level directory of this distribution.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
|
|
extern crate cgmath;
|
|
|
|
use cgmath::*;
|
|
|
|
#[test]
|
|
fn test_invert() {
|
|
let v = Vector3::new(1.0f64, 2.0, 3.0);
|
|
let t = Decomposed {
|
|
scale: 1.5f64,
|
|
rot: Quaternion::new(0.5f64,0.5,0.5,0.5),
|
|
disp: Vector3::new(6.0f64,-7.0,8.0)
|
|
};
|
|
let ti = t.invert().expect("Expected successful inversion");
|
|
let vt = t.transform_vector( &v );
|
|
assert!(v.approx_eq( &ti.transform_vector( &vt ) ));
|
|
}
|
|
|
|
#[test]
|
|
fn test_look_at() {
|
|
let eye = Point3::new(0.0f64, 0.0, -5.0);
|
|
let center = Point3::new(0.0f64, 0.0, 0.0);
|
|
let up = Vector3::new(1.0f64, 0.0, 0.0);
|
|
let t: Decomposed<f64,Vector3<f64>,Quaternion<f64>> = Transform::look_at(&eye, ¢er, &up);
|
|
let point = Point3::new(1.0f64, 0.0, 0.0);
|
|
let view_point = Point3::new(0.0f64, 1.0, 5.0);
|
|
assert!( t.transform_point(&point).approx_eq(&view_point) );
|
|
}
|
|
|
|
#[test]
|
|
fn test_components() {
|
|
let t = Decomposed {
|
|
scale: 1.5f64,
|
|
rot: Quaternion::new(0.5f64,0.5,0.5,0.5),
|
|
disp: Vector3::new(6.0f64,-7.0,8.0)
|
|
};
|
|
let (scale, rot, disp) = t.decompose();
|
|
assert_eq!(scale, Vector3::from_value(t.scale));
|
|
assert_eq!(rot, t.rot);
|
|
assert_eq!(disp, t.disp);
|
|
}
|