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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-08-28 08:14:13 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-08-28 08:14:13 +0200 |
commit | 5fe3c49ba0e7e3f64f5b6c9b64ced675c01b14fe (patch) | |
tree | 5f024477d370d92edacead7412f60f6757cbf082 /src/lib/mathlib/math/EulerAngles.cpp | |
parent | e44d134c6c64535f67e26f9633206aba50a10613 (diff) | |
parent | 66c61fbe96e11ee7099431a8370d84f862543810 (diff) | |
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Merged multirotor branch
Diffstat (limited to 'src/lib/mathlib/math/EulerAngles.cpp')
-rw-r--r-- | src/lib/mathlib/math/EulerAngles.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/lib/mathlib/math/EulerAngles.cpp b/src/lib/mathlib/math/EulerAngles.cpp new file mode 100644 index 000000000..e733d23bb --- /dev/null +++ b/src/lib/mathlib/math/EulerAngles.cpp @@ -0,0 +1,126 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file Vector.cpp + * + * math vector + */ + +#include "test/test.hpp" + +#include "EulerAngles.hpp" +#include "Quaternion.hpp" +#include "Dcm.hpp" +#include "Vector3.hpp" + +namespace math +{ + +EulerAngles::EulerAngles() : + Vector(3) +{ + setPhi(0.0f); + setTheta(0.0f); + setPsi(0.0f); +} + +EulerAngles::EulerAngles(float phi, float theta, float psi) : + Vector(3) +{ + setPhi(phi); + setTheta(theta); + setPsi(psi); +} + +EulerAngles::EulerAngles(const Quaternion &q) : + Vector(3) +{ + (*this) = EulerAngles(Dcm(q)); +} + +EulerAngles::EulerAngles(const Dcm &dcm) : + Vector(3) +{ + setTheta(asinf(-dcm(2, 0))); + + if (fabsf(getTheta() - M_PI_2_F) < 1.0e-3f) { + setPhi(0.0f); + setPsi(atan2f(dcm(1, 2) - dcm(0, 1), + dcm(0, 2) + dcm(1, 1)) + getPhi()); + + } else if (fabsf(getTheta() + M_PI_2_F) < 1.0e-3f) { + setPhi(0.0f); + setPsi(atan2f(dcm(1, 2) - dcm(0, 1), + dcm(0, 2) + dcm(1, 1)) - getPhi()); + + } else { + setPhi(atan2f(dcm(2, 1), dcm(2, 2))); + setPsi(atan2f(dcm(1, 0), dcm(0, 0))); + } +} + +EulerAngles::~EulerAngles() +{ +} + +int __EXPORT eulerAnglesTest() +{ + printf("Test EulerAngles\t: "); + EulerAngles euler(0.1f, 0.2f, 0.3f); + + // test ctor + ASSERT(vectorEqual(Vector3(0.1f, 0.2f, 0.3f), euler)); + ASSERT(equal(euler.getPhi(), 0.1f)); + ASSERT(equal(euler.getTheta(), 0.2f)); + ASSERT(equal(euler.getPsi(), 0.3f)); + + // test dcm ctor + euler = Dcm(EulerAngles(0.1f, 0.2f, 0.3f)); + ASSERT(vectorEqual(Vector3(0.1f, 0.2f, 0.3f), euler)); + + // test quat ctor + euler = Quaternion(EulerAngles(0.1f, 0.2f, 0.3f)); + ASSERT(vectorEqual(Vector3(0.1f, 0.2f, 0.3f), euler)); + + // test assignment + euler.setPhi(0.4f); + euler.setTheta(0.5f); + euler.setPsi(0.6f); + ASSERT(vectorEqual(Vector3(0.4f, 0.5f, 0.6f), euler)); + + printf("PASS\n"); + return 0; +} + +} // namespace math |