qtcolortriangle.cpp File Reference

#include "qtcolortriangle.h"
#include <QEvent>
#include <QMap>
#include <QVarLengthArray>
#include <QConicalGradient>
#include <QFrame>
#include <QImage>
#include <QKeyEvent>
#include <QLayout>
#include <QMouseEvent>
#include <QPainter>
#include <QPainterPath>
#include <QPixmap>
#include <QResizeEvent>
#include <QToolTip>
#include <QVBoxLayout>
#include <math.h>

Include dependency graph for qtcolortriangle.cpp:

Go to the source code of this file.

Functions
double	qsqr (double a)
double	vlen (double x, double y)
double	vprod (double x1, double y1, double x2, double y2)
bool	angleBetweenAngles (double p, double a1, double a2)

Variables
const double	PI = 3.14159265358979323846264338327950288419717
const double	TWOPI = 2.0*PI

Function Documentation

angleBetweenAngles()

bool angleBetweenAngles	(	double	p,
		double	a1,
		double	a2 )

Returns true if the point cos(p),sin(p) is on the arc between cos(a1),sin(a1) and cos(a2),sin(a2); otherwise returns false.

Definition at line 935 of file qtcolortriangle.cpp.

References angleBetweenAngles(), PI, and TWOPI.

Referenced by angleBetweenAngles().

qsqr()

double qsqr ( double a )

inline

Returns a * a.

Definition at line 907 of file qtcolortriangle.cpp.

References qsqr().

Referenced by qsqr(), and vlen().

vlen()

double vlen ( double x, double y )

inline

Returns the length of the vector (x,y).

Definition at line 916 of file qtcolortriangle.cpp.

References qsqr(), and vlen().

Referenced by vlen().

vprod()

double vprod ( double x1, double y1, double x2, double y2 )

inline

Returns the vector product of (x1,y1) and (x2,y2).

Definition at line 925 of file qtcolortriangle.cpp.

References vprod().

Referenced by vprod().

Variable Documentation

PI

const double PI = 3.14159265358979323846264338327950288419717

Definition at line 98 of file qtcolortriangle.cpp.

Referenced by angleBetweenAngles(), QtColorTriangle::mouseMoveEvent(), QtColorTriangle::mousePressEvent(), and QtColorTriangle::setColor().

TWOPI

const double TWOPI = 2.0*PI

Definition at line 99 of file qtcolortriangle.cpp.

Referenced by angleBetweenAngles(), QtColorTriangle::mouseMoveEvent(), QtColorTriangle::mousePressEvent(), and QtColorTriangle::setColor().