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