AngleDeg

rcsc/geom/angle_deg.h

This class converts angles to degrees. As we all know, the mathematic functions in ANSI C are represented in radians. Thus, this class is extremely important in several calculations during the match.

In the picture above, if we have a point P in P(4, 3), then the angle φ will be:

r² = 4² + 3²
r = sqrt(25)
r = 5
 
sin φ = 25 / r
sin φ = 25 / 5
φ ≃ 2.78 rad ou φ ≃ -55.59º

Useful methods on this class:

// normalize angles in the interval [-180°, 180°]
const AngleDeg & normalize()  
 
// returns the absolute angle value
double abs() const            
 
// returns the angle value in radians
double radian() const          

This class has several other useful methods such as sin, tangent, arctangent and radians, besides overloading of arithmetical operators.