77 lines
2.4 KiB
Rust
77 lines
2.4 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.
|
|
|
|
#[macro_use]
|
|
extern crate approx;
|
|
extern crate cgmath;
|
|
|
|
#[cfg(feature = "serde")]
|
|
extern crate serde_json;
|
|
|
|
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.inverse_transform()
|
|
.expect("Expected successful inversion");
|
|
let vt = t.transform_vector(v);
|
|
assert_ulps_eq!(&v, &ti.transform_vector(vt));
|
|
}
|
|
|
|
#[test]
|
|
fn test_inverse_vector() {
|
|
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 vt = t.inverse_transform_vector(v)
|
|
.expect("Expected successful inversion");
|
|
assert_ulps_eq!(v, t.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<Vector3<f64>, Quaternion<f64>> = Transform::look_at(eye, center, up);
|
|
let point = Point3::new(1.0f64, 0.0, 0.0);
|
|
let view_point = Point3::new(0.0f64, 1.0, 5.0);
|
|
assert_ulps_eq!(&t.transform_point(point), &view_point);
|
|
}
|
|
|
|
#[cfg(feature = "serde")]
|
|
#[test]
|
|
fn test_serialize() {
|
|
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 serialized = serde_json::to_string(&t).unwrap();
|
|
let deserialized: Decomposed<Vector3<f64>, Quaternion<f64>> =
|
|
serde_json::from_str(&serialized).unwrap();
|
|
|
|
assert_ulps_eq!(&t, &deserialized);
|
|
}
|