public static Rct Bounds(IEnumerable <Pt> pc, Mat xform)
{
Rct bounds = Rct.Null;
foreach (Pt p in pc)
{
bounds = bounds.Union(xform * p);
}
return(bounds);
}
static bool doubleLoop(Stroq s)
{
int closeInd = 0;
double nearest = double.MaxValue;
Pt first = s[0];
for (int i = s.Count / 4; i < 3 * s.Count / 4; i++)
{
if ((s[i] - first).Length < nearest)
{
nearest = (s[i] - first).Length;
closeInd = i;
}
}
if (nearest < s.GetBounds().MaxDim *.4 && closeInd > 2 && closeInd < s.Count - 2)
{
List <Pt> clipped = new List <Pt>(s.Select <Pt, Pt>((Pt p) => p));
List <Pt> clipped2 = new List <Pt>(s.Select <Pt, Pt>((Pt p) => p));
clipped.RemoveRange(closeInd, s.Count - closeInd);
clipped2.RemoveRange(0, closeInd);
Rct r1 = Rct.Null;
Rct r2 = Rct.Null;
foreach (Pt p in clipped)
{
r1 = r1.Union(p);
}
foreach (Pt p in clipped2)
{
r2 = r2.Union(p);
}
Rct r3 = r1.Union(r2);
Rct inter = r1.Intersection(r2);
if (isCircular(clipped.ToArray()) && isCircular(clipped2.ToArray()) &&
inter.Width / (float)r1.Width > 0.5 && inter.Height / (float)r1.Height > 0.5 &&
inter.Width / (float)r2.Width > 0.5 && inter.Height / (float)r2.Height > 0.5 &&
inter.Width / (float)r3.Width > 0.5 && inter.Height / (float)r3.Height > 0.5)
{
return(true);
}
}
return(false);
}