// vrati polygon ktery je vycisten od
// po sobe jdoucich shodnych bodu
// a bodu ktere lezi na jende primce
public static List <Point> PolygonPure(IPolygonReader poly, bool closed, double limit)
{
if (poly == null)
{
throw (new ArgumentNullException("PolygonPure(poly,..)"));
}
Point[] pt = new BoxArrayPoint(poly).Value;
List <int> retInx = new List <int>(poly.Length);
f_PolygonPure(pt, closed, limit, ref retInx);
List <Point> ret = new List <Point>(retInx.Count);
foreach (int i in retInx)
{
ret.Add(pt[i]);
}
return(ret);
}
public static List <int> PolygonParallelEdges(IPolygonReader poly, bool closed, Vector v)
{
List <int> r = new List <int>();
Point[] p = new BoxArrayPoint(poly).Value;
for (int i = 0, j; i < p.Length; i++)
{
if (i == p.Length - 1)
{
j = 0;
}
else
{
j = i + 1;
}
if (Funcs2D.IsParallel(v, p[j].Minus(p[i])) != 0)
{
r.Add(i);
}
}
return(r);
}
