Code-Bin #782 - is it good ?

is it good ?
Posted by: red | August 9, 2010 @ 3:01pm

C++ Code

void CFunnel::GetCorner(CVector3 *P1, CVector3 *Cntr, float Radius, bool WichSide, CVector3 &TResult)
{
	if(WichSide)
	{
		float x0 = P1->x;
		float y0 = P1->z;

float x1 = Cntr->x;
		float y1 = Cntr->z;

// get distance from P1 to C
		float D = P1->GetDistance(*Cntr);

// get center of 2nd circle
		float x2 = (x0+x1)/2;
		float y2 = (y0+y1)/2;
		
		// get ramp.
		float m = (x2-x1)/(y1-y2);
		float n = (x1*x1 - x2*x2 + y1*y1 - y2*y2 + ((D*D)/4) - Radius*Radius)/( 2*(y1-y2));
		
		// get parameters
		float A = m*m + 1;
		float B = 2*(m*n - x1 - y1*m);
		float C = n*n + x1*x1 - 2*y1*n - Radius*Radius;

// get FINAL eq. solutions
		float delta = sqrt(B*B - 4*A*C);

float a = (-B - delta) / (2*A);
		float b = m*a+n;
		
		TResult = CVector3(a,0,b);
	}
	else
	{
		float x0 = P1->x;
		float y0 = P1->z;

float x1 = Cntr->x;
		float y1 = Cntr->z;

// get distance from P1 to C
		float D = P1->GetDistance(*Cntr); 
		
		// get center of 2nd circle
		float x2 = (x0+x1)/2;
		float y2 = (y0+y1)/2;

// get ramp.
		float m = (x2-x1)/(y1-y2);
		float n = (x1*x1 - x2*x2 + y1*y1 - y2*y2 + ((D*D)/4) - Radius*Radius)/( 2*(y1-y2));

// get parameters
		float A = m*m + 1;
		float B = 2*(m*n - x1 - y1*m);
		float C = n*n + x1*x1 - 2*y1*n - Radius*Radius;

// get FINAL eq. solutions
		float delta = sqrt(B*B - 4*A*C);

float c = (-B + delta) / (2*A);
		float d = m*c+n;

TResult = CVector3(c,0,d);
	}
}

Syntax Highlighting

[Open in new window]

Author Comments

none

Rating

4.49 / 8
45 Votes