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132 lines
3.8 KiB
C
132 lines
3.8 KiB
C
/****************************************************************************
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*
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* Copyright (C) 2013 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file rotation.h
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*
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* Vector rotation library
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*/
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#ifndef ROTATION_H_
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#define ROTATION_H_
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#include <unistd.h>
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#include <mathlib/mathlib.h>
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/**
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* Enum for board and external compass rotations.
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* This enum maps from board attitude to airframe attitude.
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*/
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enum Rotation {
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ROTATION_NONE = 0,
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ROTATION_YAW_45 = 1,
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ROTATION_YAW_90 = 2,
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ROTATION_YAW_135 = 3,
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ROTATION_YAW_180 = 4,
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ROTATION_YAW_225 = 5,
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ROTATION_YAW_270 = 6,
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ROTATION_YAW_315 = 7,
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ROTATION_ROLL_180 = 8,
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ROTATION_ROLL_180_YAW_45 = 9,
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ROTATION_ROLL_180_YAW_90 = 10,
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ROTATION_ROLL_180_YAW_135 = 11,
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ROTATION_PITCH_180 = 12,
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ROTATION_ROLL_180_YAW_225 = 13,
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ROTATION_ROLL_180_YAW_270 = 14,
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ROTATION_ROLL_180_YAW_315 = 15,
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ROTATION_ROLL_90 = 16,
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ROTATION_ROLL_90_YAW_45 = 17,
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ROTATION_ROLL_90_YAW_90 = 18,
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ROTATION_ROLL_90_YAW_135 = 19,
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ROTATION_ROLL_270 = 20,
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ROTATION_ROLL_270_YAW_45 = 21,
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ROTATION_ROLL_270_YAW_90 = 22,
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ROTATION_ROLL_270_YAW_135 = 23,
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ROTATION_PITCH_90 = 24,
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ROTATION_PITCH_270 = 25,
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ROTATION_ROLL_270_YAW_270 = 26,
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ROTATION_MAX
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};
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typedef struct {
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uint16_t roll;
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uint16_t pitch;
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uint16_t yaw;
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} rot_lookup_t;
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const rot_lookup_t rot_lookup[] = {
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{ 0, 0, 0 },
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{ 0, 0, 45 },
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{ 0, 0, 90 },
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{ 0, 0, 135 },
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{ 0, 0, 180 },
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{ 0, 0, 225 },
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{ 0, 0, 270 },
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{ 0, 0, 315 },
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{180, 0, 0 },
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{180, 0, 45 },
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{180, 0, 90 },
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{180, 0, 135 },
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{ 0, 180, 0 },
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{180, 0, 225 },
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{180, 0, 270 },
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{180, 0, 315 },
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{ 90, 0, 0 },
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{ 90, 0, 45 },
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{ 90, 0, 90 },
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{ 90, 0, 135 },
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{270, 0, 0 },
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{270, 0, 45 },
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{270, 0, 90 },
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{270, 0, 135 },
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{ 0, 90, 0 },
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{ 0, 270, 0 },
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{270, 0, 270 }
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};
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/**
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* Get the rotation matrix
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*/
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__EXPORT void
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get_rot_matrix(enum Rotation rot, math::Matrix<3,3> *rot_matrix);
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/**
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* rotate a 3 element float vector in-place
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*/
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__EXPORT void
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rotate_3f(enum Rotation rot, float &x, float &y, float &z);
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#endif /* ROTATION_H_ */
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