Ejemplo n.º 1
0
QWMatrix &QWMatrix::rotate( double a )
{
    double b = deg2rad*a;			// convert to radians
#if defined(_WS_X11_)
    double sina = qsincos(b,FALSE);		// fast and convenient
    double cosa = qsincos(b,TRUE);
#else
    double sina = sin(b);
    double cosa = cos(b);
#endif
    QWMatrix result( cosa, sina, -sina, cosa, 0.0F, 0.0F );
    return bmul( result );
}
Ejemplo n.º 2
0
QWMatrix &QWMatrix::rotate( float a )
{
    double b = deg2rad*a;			// convert to radians
#if defined(_WS_X11_)
    float sina = qsincos(b,FALSE);		// fast and convenient
    float cosa = qsincos(b,TRUE);
#else
    float sina = (float)sin(b);
    float cosa = (float)cos(b);
#endif
    QWMatrix result( cosa, sina, -sina, cosa, 0.0F, 0.0F );
    return bmul( result );
}