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69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
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/*
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* $Id: ball_state.h 2665 2012-10-15 21:42:36Z alin $
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*/
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/** TRICK HEADER **************************************************************
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@file
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@verbatim
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PURPOSE:
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(Ball model EOM state parameter definition.)
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ASSUMPTIONS AND LIMITATIONS:
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((2 dimensional space)
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(Translational EOM only))
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PROGRAMMERS:
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(((Your Name) (Company Name) (Date) (Trick tutorial)))
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@endverbatim
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*******************************************************************************/
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#ifndef _BALL_STATE_H_
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#define _BALL_STATE_H_
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/** @struct BSTATE_IN
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@brief ball state input parameters
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*/
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typedef struct { /* BSTATE_IN ------------------------------------------------*/
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/*=== Initial Ball States ===*/
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double mass ; /**< (kg) Total mass */
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double position[2] ; /**< (m) X(horizontal),Y(vertical) position */
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double speed ; /**< (m/s) Linear speed */
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double elevation ; /**< (r) Trajectory angle with respect to the horizontal */
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int print_off; /**< (--) Set to nonzero to suppress output */
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} BSTATE_IN ; /*--------------------------------------------------------------*/
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/** @struct BSTATE_OUT
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@brief ball state output parameters
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*/
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typedef struct { /* BSTATE_OUT -----------------------------------------------*/
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double position[2] ; /**< (m) X(horizontal), Y(vertical) position */
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double velocity[2] ; /**< (m/s) X,Y velocity */
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double acceleration[2] ; /**< (m/s2) X,Y acceleration */
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double external_force[2] ; /**< (N) Total external force on ball */
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} BSTATE_OUT ; /*-------------------------------------------------------------*/
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/** @struct BSTATE_WORK
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@brief ball state work parameters
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*/
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typedef struct { /* BSTATE_WORK ----------------------------------------------*/
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void ** external_force ; /**< ** (N) External forces, from 'collect' */
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} BSTATE_WORK ; /*------------------------------------------------------------*/
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/** @struct BSTATE
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@brief ball state structure
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*/
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typedef struct { /* BSTATE ---------------------------------------------------*/
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BSTATE_IN input ; /**< (--) User inputs */
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BSTATE_OUT output ; /**< (--) User outputs */
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BSTATE_WORK work ; /**< (--) EOM workspace */
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} BSTATE ; /*-----------------------------------------------------------------*/
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#endif
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