monado/tests/tests_maths.cpp
Campbell Suter 0f8da1900b a/math: Fix math_pose_invert breaking on rotated poses, and add a test
Previously, math_pose_invert would apply a multiplication in the wrong
order. This lead to the position of the 'original' pose being rotated.

This patch fixes that, and adds a unit test to check this case.
2022-06-01 16:44:03 +01:00

43 lines
1.1 KiB
C++

// Copyright 2022, Campbell Suter
// SPDX-License-Identifier: BSL-1.0
/*!
* @file
* @brief Maths function tests.
* @author Campbell Suter <znix@znix.xyz>
*/
#include <util/u_worker.hpp>
#include <math/m_space.h>
#include <math/m_vec3.h>
#include "catch/catch.hpp"
#include <thread>
#include <chrono>
TEST_CASE("CorrectPoseInverse")
{
// Test that inverting a pose works correctly
// Pick an arbitrary and non-trivial original pose
struct xrt_pose orig = {};
orig.position = {123.f, 456.f, 789.f};
orig.orientation = {-0.439, -0.561, 0.072, -0.698};
math_quat_normalize(&orig.orientation);
// Invert it
struct xrt_pose invert;
math_pose_invert(&orig, &invert);
// Multiply the poses together in both orders
struct xrt_pose out_a, out_b;
math_pose_transform(&orig, &invert, &out_a);
math_pose_transform(&invert, &orig, &out_b);
// A pose multiplied by it's inverse or vice-verse should have both a negligible rotation and position
CHECK(m_vec3_len(out_a.position) < 0.001);
CHECK(1 - abs(out_a.orientation.w) < 0.001);
CHECK(m_vec3_len(out_b.position) < 0.001);
CHECK(1 - abs(out_b.orientation.w) < 0.001);
}