geometry

Classes
class	Catenary
	Calculates the curve of a hanging cable (catenary). More...
class	Ellipse< T >
	Equations to calculate the shape of an ellipse and to calculate points on the edge of the ellipse and to see if points are inside or outside. More...
class	Polygon< T >
	A simple polygon defined by a series of points. More...

Functions
template<typename T>
T	square (T in)
	Returns the square of a value.
template<typename T>
bool	solveLine (T x1, T y1, T x2, T y2, T &m, T &b)
	Solves for the slope and intercept of a line given two points.

Detailed Description

Function Documentation

square()

template<typename T>

T square

(

T

in

)

Returns the square of a value.

Parameters

in	The value to square

Returns

in * in

Referenced by Ellipse< T >::isPointInside(), Ellipse< T >::isPointOn(), Ellipse< T >::isPointOutside(), and Ellipse< T >::pointAtAngle().

solveLine()

template<typename T>

bool solveLine	(	T	x1,
		T	y1,
		T	x2,
		T	y2,
		T &	m,
		T &	b )

Solves for the slope and intercept of a line given two points.

Calculates m and b in the equation y = mx + b from two points on the line.

Parameters

x1	X coordinate of the first point
y1	Y coordinate of the first point
x2	X coordinate of the second point
y2	Y coordinate of the second point
m	Output: the slope of the line
b	Output: the y-intercept of the line

Returns

true if the line could be solved (returns false for vertical lines)