//-------------------------------------------------------------------------
public static void BiSectrix(LineParameters l1,
LineParameters l2,
out int x, out int y)
{
double k = (double)(l2.Len) / (double)(l1.Len);
double tx = l2.X2 - (l2.X1 - l1.X1) * k;
double ty = l2.Y2 - (l2.Y1 - l1.Y1) * k;
//All bisectrices must be on the right of the line
//If the next point is on the left (l1 => l2.2)
//then the bisectix should be rotated by 180 degrees.
if ((double)(l2.X2 - l2.X1) * (double)(l2.Y1 - l1.Y1) <
(double)(l2.Y2 - l2.Y1) * (double)(l2.X1 - l1.X1) + 100.0)
{
tx -= (tx - l2.X1) * 2.0;
ty -= (ty - l2.Y1) * 2.0;
}
// Check if the bisectrix is too short
double dx = tx - l2.X1;
double dy = ty - l2.Y1;
if ((int)Math.Sqrt(dx * dx + dy * dy) < LineSubPixelScale)
{
x = (l2.X1 + l2.X1 + (l2.Y1 - l1.Y1) + (l2.Y2 - l2.Y1)) >> 1;
y = (l2.Y1 + l2.Y1 - (l2.X1 - l1.X1) - (l2.X2 - l2.X1)) >> 1;
return;
}
x = Basics.RoundInt(tx);
y = Basics.RoundInt(ty);
}
//--------------------------------------------------------------------
//public void Interpolator(ISpanInterpolator v) { m_interpolator = v; }
//public void Filter(ImageFilterLookUpTable v) { m_filter = v; }
public void FilterOffset(double dx, double dy)
{
m_dx_dbl = dx;
m_dy_dbl = dy;
m_dx_int = (uint)Basics.RoundInt(dx * (int)image_subpixel_scale_e.Scale);
m_dy_int = (uint)Basics.RoundInt(dy * (int)image_subpixel_scale_e.Scale);
}
//---------------------------------------------fix_degenerate_bisectrix_end
public static void FixDegenerateBisectrixEnd(LineParameters lp,
ref int x, ref int y)
{
int d = Basics.RoundInt(((double)(x - lp.X2) * (double)(lp.Y2 - lp.Y1) -
(double)(y - lp.Y2) * (double)(lp.X2 - lp.X1)) / lp.Len);
if (d < LineSubPixelScale / 2)
{
x = lp.X2 + (lp.Y2 - lp.Y1);
y = lp.Y2 - (lp.X2 - lp.X1);
}
}
public static int Conv(T x)
{
return(Basics.RoundInt(x.Multiply(LineAABasics.LineSubPixelScale), LineAABasics.LineMaxCoord));
}
