You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
1.3 KiB
49 lines
1.3 KiB
/*
|
|
Rosegarden
|
|
A sequencer and musical notation editor.
|
|
|
|
This program is Copyright 2000-2008
|
|
Guillaume Laurent <glaurent@telegraph-road.org>,
|
|
Chris Cannam <cannam@all-day-breakfast.com>,
|
|
Richard Bown <bownie@bownie.com>
|
|
|
|
The moral right of the authors to claim authorship of this work
|
|
has been asserted.
|
|
|
|
This program is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU General Public License as
|
|
published by the Free Software Foundation; either version 2 of the
|
|
License, or (at your option) any later version. See the file
|
|
COPYING included with this distribution for more information.
|
|
*/
|
|
|
|
#ifndef _EQUATION_H_
|
|
#define _EQUATION_H_
|
|
|
|
namespace Rosegarden {
|
|
|
|
/**
|
|
* Equation solving helper class
|
|
*/
|
|
class Equation
|
|
{
|
|
public:
|
|
enum Unknown { Y, M, X, C };
|
|
|
|
struct Point {
|
|
Point(int xx, int yy) : x(xx), y(yy) { }
|
|
int x;
|
|
int y;
|
|
};
|
|
|
|
static void solve(Unknown u, double &y, double &m, double &x, double &c);
|
|
static void solve(Unknown u, int &y, double &m, int &x, int &c);
|
|
|
|
static void solveForYByEndPoints(Point a, Point b, double x, double &y);
|
|
static void solveForYByEndPoints(Point a, Point b, int x, int &y);
|
|
};
|
|
|
|
}
|
|
|
|
#endif
|