halfsegment.h File Reference

#include <iostream>

Go to the source code of this file.

Classes
class	halfsegment
	holds a single halfsegment, along with labeling information and information indicating if the opposing region's interior lies above and/or below the halfsegment. More...

Functions
bool	leftHandturn (double p1x, double p1y, double p2x, double p2y, double p3x, double p3y)

Function Documentation

bool leftHandturn ( double  p1x, double  p1y, double  p2x, double  p2y, double  p3x, double  p3y  )

inline

Left hand turn test

returns true if when you start at p1, and walk towards p2, you have to make a left turn at p2 in order to continue walking to p3.

Takes 3 points. The parameters are the x and y values for point p1, the x and y values for point p2, and the x and y values for point p3.

Definition at line 30 of file halfsegment.h.