Difference between ofVec2f::align() and ofVec2f::isAligned()?

cuinjune · October 17, 2017, 6:30am

Hi, I wonder what is the difference between the two methods.

It looks like they are identical based on the class method documentation.

http://openframeworks.cc/documentation/math/ofVec2f/

Is there any difference between the two? Thank you so much in advance!

edapx · October 18, 2017, 1:38pm

No difference. align calls isAligned

github.com

openframeworks/openFrameworks/blob/master/libs/openFrameworks/math/ofVec2f.h#L1048




inline bool ofVec2f::operator!=( const ofVec2f& vec ) const {
	return (x != vec.x) || (y != vec.y);
}


inline bool ofVec2f::match( const ofVec2f& vec, float tolerance ) const {
	return (fabs(x - vec.x) < tolerance)
	&& (fabs(y - vec.y) < tolerance);
}


//
// Checks if vectors look in the same direction.
// Tolerance is specified in degree.
 
inline bool ofVec2f::isAligned( const ofVec2f& vec, float tolerance ) const { 
	return  fabs( this->angle( vec ) ) < tolerance;
}
inline bool ofVec2f::align( const ofVec2f& vec, float tolerance ) const {
return isAligned( vec, tolerance );
}