Sparkle Helper Library
[Sparkle Library]

Collaboration diagram for Sparkle Helper Library:

Classes
struct	sparkle::VecXY
	Vector like struct of doubles. More...
class	sparkle::Vector< T >
	A proper 3D geometric vector implementation. More...
class	sparkle::Timer
	System clock timer class. More...
Functions
Vector< double >	sparkle::intersection (Vector< double > pos1, Vector< double > dir1, Vector< double > pos2, Vector< double > dir2)
	2D intersection
double	sparkle::momentOfInertia (std::vector< double > x, std::vector< double > y, double mass)
	Calculate the moment of inertia of a 2D polygon.
double	sparkle::dAbs (double value)
	Return absolute value of a double.

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Detailed Description

Small helper library

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Function Documentation

Vector<double> sparkle::intersection (  Vector< double >  pos1, Vector< double >  dir1, Vector< double >  pos2, Vector< double >  dir2 )

2D intersection Parameters: pos1  Position of first vector dir1  Vector 1 pos2  Position of second vector dir2  Vector 1 Returns: A vector describing the point of intersection. Will return Vector<double>::isReal() == false if no intersection.

double sparkle::momentOfInertia (  std::vector< double >  x, std::vector< double >  y, double  mass )

Calculate the moment of inertia of a 2D polygon. Parameters: x  List of x-coords of polygon relative to axis of rotation y  List of y-coords of polygon relative to axis of rotation mass  Mass of polygon Returns: Moment of inertia

double sparkle::dAbs (  double  value  )

Return absolute value of a double. Parameters: value  Input value Returns: The absolute value of value

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