C++ (Cpp) IM_DEG Examples

Example #1

File: colour.c Project: alon/libvips

/**
 * im_col_ab2h:
 * @a: CIE a
 * @b: CIE b
 *
 * Returns: Hue (degrees) 
 */
double
im_col_ab2h( double a, double b )
{
	double h;

	/* We have to be careful we have the right quadrant!
	 */
	if( a == 0 ) {
		if( b < 0.0 )
			h = 270;
		else if( b == 0.0 )
			h = 0;
		else
			h = 90;
	}
	else {
		double t = atan( b / a );

		if( a > 0.0 )
			if( b < 0.0 )
				h = IM_DEG( t + IM_PI * 2.0 );
			else
				h = IM_DEG( t );
		else
			h = IM_DEG( t + IM_PI );
	}

	return( h );
}

Example #2

File: builtin.c Project: DINKIN/nip2

static double ip_atan( double a ) { return( IM_DEG( atan( a ) ) ); }

Example #3

File: builtin.c Project: DINKIN/nip2

static double ip_acos( double a ) { return( IM_DEG( acos( a ) ) ); }