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prova
Dependencies: X_NUCLEO_53L0A1 mbed
Fork of 53L0A1_HandGestureRecognition by
Middlewares/ST/Gestures/GesturesDetect/Inc/tof_gestures_DIRSWIPE_1.h
- Committer:
- mapellil
- Date:
- 2018-02-22
- Revision:
- 9:6205ef056c8a
- Parent:
- 7:d79cbeda2982
File content as of revision 9:6205ef056c8a:
/******************************************************************************* Copyright © 2015, STMicroelectronics International N.V. All rights reserved. Use and Redistribution are permitted only in accordance with licensing terms available at www.st.com under software reference X-CUBE-6180XA1, and provided that the following conditions are met: * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. * 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. * Neither the name of STMicroelectronics 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 PROTECTED BY STMICROELECTRONICS PATENTS AND COPYRIGHTS. 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, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS ARE DISCLAIMED. IN NO EVENT SHALL STMICROELECTRONICS INTERNATIONAL N.V. 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 tof_gestures_DIRSWIPE_1.h * $Date: 2015-11-10 11:21:53 +0100 (Tue, 10 Nov 2015) $ * $Revision: 2612 $ */ #ifndef TOF_GESTURES_DIRSWIPE_1_H_ #define TOF_GESTURES_DIRSWIPE_1_H_ #include "tof_gestures_platform.h" #include "tof_motion.h" #ifdef __cplusplus extern "C" { #endif /** @defgroup tof_gestures_DIRSWIPE_1 Directional SWIPE (1) * @brief Directional (left/right) Swipe gesture detection based on motion detector (dual ToF devices) @par Description This tof_gestures module allows to detect a directional swipe (from left to right or from right to left) using two ToF devices (left and right). It is based on the tof_motion module with simple threshold and timing considerations. It returns one of the following gestures codes : ::GESTURES_SWIPE_LEFT_RIGHT, ::GESTURES_SWIPE_RIGHT_LEFT when gesture is detected or ::GESTURES_NULL, ::GESTURES_DISCARDED_TOO_SLOW or ::GESTURES_DISCARDED_TOO_FAST when no gesture is detected. @par Known Limitations None (very fast swipes can be detected) * @ingroup tof_gestures * @{ */ /** Codes used to detect directional swipes (internal state machine) */ enum Gestures_DirSwipe1_Code_t{ GESTURES_DIRSWIPE_1_START = 0, /*!< Ready to detect gesture start */ GESTURES_DIRSWIPE_1_END = 1, /*!< Ready to detect gesture end */ }; /** * @struct Gesture_DIRSWIPE_1_Data_t * @brief Data structure for directional swipes detection (using two ranging devices) */ typedef struct { int minSwipeDuration; /*!< Input : Minimum duration of a swipe to be detected */ int maxSwipeDuration; /*!< Input : Maximum duration of a swipe to be detected */ bool handMustCoverBoth; /*!< Input : If set to true, hand must cover both devices at some point to get a detected swipes */ MotionData_t motionDetectorLeft; /*!< Private : Motion detector associated to the left ranging device */ MotionData_t motionDetectorRight; /*!< Private : Motion detector associated to the right ranging device */ int state; /*!< Private : Internal state machine */ bool gesture_start_from_right; /*!< Private : Obvious */ int timestamp; /*!< Private : Obvious */ } Gesture_DIRSWIPE_1_Data_t; /** * @brief Initialize gesture data * @param threshold Distance below which a SWIPE may be detected. All distances above this threshold are not considered. * @param minSwipeDuration Minimum duration of a swipe. Set to 0 if no minimum speed is required. * @param maxSwipeDuration Maximum swipe duration. If a swipe is too slow, it is discarded. * @param handMustCoverBoth If set to true, hand must cover both devices at some point to validate a swipe. * This may be useful to get a more robust swipe detection but this requires both sensors to not be too far away from each other. * If both devices are too far from each other, it is necessary to set this flag to false to detect swipes. * @return 0 on success */ int tof_gestures_initDIRSWIPE_1(int32_t threshold, int minSipeDuration, int maxSwipeDuration, bool handMustCoverBoth, Gesture_DIRSWIPE_1_Data_t *data); /** * @brief Detect gesture * @param left_range_mm Ranging distance in mm from left device * @param right_range_mm Ranging distance in mm from right device * @return One of these gestures code from ::Gestures_Code_t : ::GESTURES_SWIPE_LEFT_RIGHT, ::GESTURES_SWIPE_RIGHT_LEFT, ::GESTURES_NULL, ::GESTURES_DISCARDED_TOO_SLOW or ::GESTURES_DISCARDED_TOO_FAST */ int tof_gestures_detectDIRSWIPE_1(int32_t left_range_mm, int32_t right_range_mm, Gesture_DIRSWIPE_1_Data_t *data); /** @} */ #ifdef __cplusplus } #endif #endif /* TOF_GESTURES_DIRSWIPE_1_H_ */