public static Point[,] PolygonParallelEdges(IPolygonReader poly, bool closed, Point pt1, Point pt2)
{
List <int> r = PolygonParallelEdges(poly, closed, pt2.Minus(pt1));
Point[,] ret = new Point[r.Count, 2];
int i = 0, k;
foreach (int j in r)
{
poly.GetRow(j, out double x, out double y);
ret[i, 0].X = x; ret[i, 0].Y = y;
if (j == poly.Length - 1)
{
k = 0;
}
else
{
k = j + 1;
}
poly.GetRow(k, out x, out y);
ret[i, 1].X = x; ret[i, 1].Y = y;
i++;
}
return(ret);
}
public PolygonOffset(IPolygonReader poly, bool isClosed = true, bool isOutline = true)
{
// testovani a vyhozeni vyjimek
if (poly == null)
{
throw (new ArgumentNullException("PolygonOffset(poly,..)"));
}
if (poly.Length < (isClosed ? 3 : 2))
{
throw (new FormatException("PolygonOffset, small number of points"));
}
mySrc = new MyPoint[poly.Length];
myRet = null;
IsClosed = isClosed;
IsOutline = isOutline;
// zjistim smer otaceni
myIsReversed = Funcs2D.PolygonIsClockwise(poly) == IsOutline;
for (int i = 0; i < poly.Length; i++)
{
poly.GetRow(i, out double x, out double y);
mySrc[i].Pt.X = x;
mySrc[i].Pt.Y = y;
mySrc[i].Id = i;
mySrc[i].Offset = 0;
}
if (!IsClosed)
{
mySrc[poly.Length - 1].Id = 0;
}
}
public static Rect2D PolygonBoundary(IPolygonReader poly, ITransEngine2D mat)
{
if (poly == null)
{
throw (new ArgumentNullException("PolygonBoundary(poly)"));
}
Rect2D ret = Rect2D.Empty;
Point pt = new Point();
for (int i = 0; i < poly.Length; i++)
{
poly.GetRow(i, out double x, out double y);
pt.X = x;
pt.Y = y;
if (mat != null)
{
mat.TransTo(pt, ref pt);
}
if (ret.IsEmpty)
{
ret = new Rect2D(pt, new Size(0, 0));
}
else
{
ret.Union(pt);
}
}
return(ret);
}
public BoxListPoint(IPolygonReader pr)
{
if (pr == null)
{
throw (new ArgumentNullException("pr"));
}
myValue = new List <Point>();
for (int i = 0; i < pr.Length; i++)
{
pr.GetRow(i, out double x, out double y);
myValue.Add(new Point(x, y));
}
}
public override void GetRow(int row, out double x, out double y)
{
if (row >= myPoly.Length)
{
throw (new IndexOutOfRangeException());
}
myPoly.GetRow(row, out x, out y);
Point pt = new Point();
d_Trans(new Point(x, y), ref pt);
x = pt.X;
y = pt.Y;
}
public BoxArrayPoint(IPolygonReader pr)
{
if (pr == null)
{
throw (new ArgumentNullException("pr"));
}
myValue = new Point[pr.Length];
for (int i = 0; i < pr.Length; i++)
{
pr.GetRow(i, out double x, out double y);
myValue[i].X = x;
myValue[i].Y = y;
}
}