math_angles.cpp File Reference

#include "q_shared.h"
#include <float.h>

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Functions
void	toAngles (idVec3_t &src, angles_t &dst)
void	toAngles (quat_t &src, angles_t &dst)
void	toAngles (mat3_t &src, angles_t &dst)
Variables
angles_t	ang_zero (0.0f, 0.0f, 0.0f)

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Function Documentation

void toAngles (  idVec3_t &  src, angles_t &  dst )

Definition at line 62 of file math_angles.cpp. References angles_t::pitch, angles_t::roll, src, and angles_t::yaw. Referenced by toAngles(). { dst.pitch = src[ 0 ]; dst.yaw = src[ 1 ]; dst.roll = src[ 2 ]; }

void toAngles (  quat_t &  src, angles_t &  dst )

Definition at line 55 of file math_angles.cpp. References src, toAngles(), and toMatrix(). { mat3_t temp; toMatrix( src, temp ); toAngles( temp, dst ); }

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void toAngles (  mat3_t &  src, angles_t &  dst )

Definition at line 27 of file math_angles.cpp. References asin(), atan2(), cos(), cp, angles_t::pitch, angles_t::roll, src, and angles_t::yaw. { double theta; double cp; double sp; sp = src[ 0 ][ 2 ]; // cap off our sin value so that we don't get any NANs if ( sp > 1.0 ) { sp = 1.0; } else if ( sp < -1.0 ) { sp = -1.0; } theta = -asin( sp ); cp = cos( theta ); if ( cp > 8192 * FLT_EPSILON ) { dst.pitch = theta * 180 / M_PI; dst.yaw = atan2( src[ 0 ][ 1 ], src[ 0 ][ 0 ] ) * 180 / M_PI; dst.roll = atan2( src[ 1 ][ 2 ], src[ 2 ][ 2 ] ) * 180 / M_PI; } else { dst.pitch = theta * 180 / M_PI; dst.yaw = -atan2( src[ 1 ][ 0 ], src[ 1 ][ 1 ] ) * 180 / M_PI; dst.roll = 0; } }

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Variable Documentation

angles_t ang_zero(0.0f, 0.0f, 0.0f)

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