Algorithms

<br />
<br />
Ao = 1/4<br />
An = (1/(n^2*PI^2))*(cos(n*PI)-1)<br />
Bn = (-1/(PI*n))*cos(n*PI)<br />
<br />
f(t) = Ao + SUM(An*cos(n*w*t)) + SUM(Bn*sin(n*w*t))<br />
<br />
Where SUM is from n=1 -> n =infinity, and w = (2*PI)/T<br />
<br />

             (y2 - y1)
0 = y - y1 - --------- (x - x1)
             (x2 - x1)

2, 0, 0
0, 3, 0
10,9, 1

2, 0, 0
0, 3, 0
5, 3, 1

SK Genius wrote:

Infact, how are you getting the other values?

//class has a 
double matrix_[3][3];
//defined


double Matrix2D::getRotation() const
{
	//based on Maxim Shemanarev AGG matrix code ! Thanks !
	double x1 = 0.0;
	double y1 = 0.0;
	double x2 = 1.0;
	double y2 = 0.0;
	
	apply(x1, y1);
	apply(x2, y2);

	return atan2(y2-y1, x2-x1);
}


void Matrix2D::getScale( double& x, double& y ) const
{
	//based on Maxim Shemanarev AGG matrix code ! Thanks !
	double x1 = 0.0;
	double y1 = 0.0;
	double x2 = 1.0;
	double y2 = 1.0;
	Matrix2D rot;
	rot.rotate( -getRotation() );

	rot.multiply( *this );

	rot.apply(x1, y1);
	rot.apply(x2, y2);
	
	x = x2 - x1;
	y = y2 - y1;
}

X, 0, 0
0, Y, 0
0, 0, 1

void Matrix2D::getShear( double& x, double& y ) const
{
	//based on Maxim Shemanarev AGG matrix code ! Thanks !	
	double x1 = 1.0;	
	double y1 = 1.0;	

	Matrix2D rot;	
	rot.rotate( -getRotation() );	
	rot.multiply( *this );	
	rot.apply(x1, y1);	
	x = x1-1;	
	y = y1-1;
}

short[] numbers = new short[] { short.MaxValue, short.MaxValue, short.MaxValue, short.MaxValue };
short total = 0;
foreach (short number in numbers)
	total += number;
Console.WriteLine(total);