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author | Lorenz Meier <lm@inf.ethz.ch> | 2013-08-21 18:13:01 +0200 |
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committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-08-21 18:13:01 +0200 |
commit | fab110d21f147e5064ff140aadac649017fa466e (patch) | |
tree | b41291188db4e5734353f0d09a0af306c58ed9f5 /src/lib/mathlib/math/Limits.cpp | |
parent | 309ea8146055528c22395fca06b7a70b660c22b3 (diff) | |
download | px4-firmware-fab110d21f147e5064ff140aadac649017fa466e.tar.gz px4-firmware-fab110d21f147e5064ff140aadac649017fa466e.tar.bz2 px4-firmware-fab110d21f147e5064ff140aadac649017fa466e.zip |
Moved math library to library dir, improved sensor-level HIL, cleaned up geo / conversion libs
Diffstat (limited to 'src/lib/mathlib/math/Limits.cpp')
-rw-r--r-- | src/lib/mathlib/math/Limits.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/lib/mathlib/math/Limits.cpp b/src/lib/mathlib/math/Limits.cpp new file mode 100644 index 000000000..d4c892d8a --- /dev/null +++ b/src/lib/mathlib/math/Limits.cpp @@ -0,0 +1,146 @@ +/**************************************************************************** + * + * Copyright (c) 2013 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 Limits.cpp + * + * Limiting / constrain helper functions + */ + + +#include <math.h> +#include <stdint.h> + +#include "Limits.hpp" + + +namespace math { + + +float __EXPORT min(float val1, float val2) +{ + return (val1 < val2) ? val1 : val2; +} + +int __EXPORT min(int val1, int val2) +{ + return (val1 < val2) ? val1 : val2; +} + +unsigned __EXPORT min(unsigned val1, unsigned val2) +{ + return (val1 < val2) ? val1 : val2; +} + +uint64_t __EXPORT min(uint64_t val1, uint64_t val2) +{ + return (val1 < val2) ? val1 : val2; +} + +double __EXPORT min(double val1, double val2) +{ + return (val1 < val2) ? val1 : val2; +} + +float __EXPORT max(float val1, float val2) +{ + return (val1 > val2) ? val1 : val2; +} + +int __EXPORT max(int val1, int val2) +{ + return (val1 > val2) ? val1 : val2; +} + +unsigned __EXPORT max(unsigned val1, unsigned val2) +{ + return (val1 > val2) ? val1 : val2; +} + +uint64_t __EXPORT max(uint64_t val1, uint64_t val2) +{ + return (val1 > val2) ? val1 : val2; +} + +double __EXPORT max(double val1, double val2) +{ + return (val1 > val2) ? val1 : val2; +} + + +float __EXPORT constrain(float val, float min, float max) +{ + return (val < min) ? min : ((val > max) ? max : val); +} + +int __EXPORT constrain(int val, int min, int max) +{ + return (val < min) ? min : ((val > max) ? max : val); +} + +unsigned __EXPORT constrain(unsigned val, unsigned min, unsigned max) +{ + return (val < min) ? min : ((val > max) ? max : val); +} + +uint64_t __EXPORT constrain(uint64_t val, uint64_t min, uint64_t max) +{ + return (val < min) ? min : ((val > max) ? max : val); +} + +double __EXPORT constrain(double val, double min, double max) +{ + return (val < min) ? min : ((val > max) ? max : val); +} + +float __EXPORT radians(float degrees) +{ + return (degrees / 180.0f) * M_PI_F; +} + +double __EXPORT radians(double degrees) +{ + return (degrees / 180.0) * M_PI; +} + +float __EXPORT degrees(float radians) +{ + return (radians / M_PI_F) * 180.0f; +} + +double __EXPORT degrees(double radians) +{ + return (radians / M_PI) * 180.0; +} + +}
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