private List <Rectangle2D> GetRecrangle(List <Vector2D> points)
{
List <Rectangle2D> rectangles = new List <Rectangle2D>();
Vector2D floorLocalCoord = GetBasicDirection()[0];
Vector2D GlobalCoord = new Vector2D(1, 0);
double xiTa = 0;
if (floorLocalCoord.Dot(GlobalCoord) > 0 && GlobalCoord.Cross(floorLocalCoord) < 0)
{
xiTa = GlobalCoord.AngleWith(floorLocalCoord);
}
else if (floorLocalCoord.Dot(GlobalCoord) < 0 && GlobalCoord.Cross(-floorLocalCoord) < 0)
{
xiTa = GlobalCoord.AngleWith(floorLocalCoord);
}
else if (floorLocalCoord.Dot(GlobalCoord) > 0 && GlobalCoord.Cross(floorLocalCoord) > 0)
{
xiTa = Math.PI / 2 - GlobalCoord.AngleWith(floorLocalCoord);
}
else if (floorLocalCoord.Dot(GlobalCoord) < 0 && GlobalCoord.Cross(-floorLocalCoord) > 0)
{
xiTa = Math.PI / 2 - GlobalCoord.AngleWith(floorLocalCoord);
}
points.ForEach(x => x.X = Math.Floor(x.X * 1e9) / 1e9);
points.ForEach(x => x.Y = Math.Floor(x.Y * 1e9) / 1e9);
List <Vector2D> newCoord = new List <Vector2D>();
points.ForEach(x => newCoord.Add(CoordTransform(x, xiTa)));
List <double> newXCoord = new List <double>();
List <double> newYCoord = new List <double>();
newCoord.ForEach(x =>
{
newXCoord.Add(x.X);
newYCoord.Add(x.Y);
});
newXCoord = newXCoord.Distinct().OrderBy(x => x).ToList();
newYCoord = newYCoord.Distinct().OrderBy(y => y).ToList();
for (int i = 0; i < newXCoord.Count - 1; i++)
{
for (int j = 0; j < newYCoord.Count - 1; j++)
{
Vector2D p1 = new Vector2D(newXCoord[i], newYCoord[j]);
Vector2D p2 = new Vector2D(newXCoord[i + 1], newYCoord[j]);
Vector2D p3 = new Vector2D(newXCoord[i + 1], newYCoord[j + 1]);
Vector2D p4 = new Vector2D(newXCoord[i], newYCoord[j + 1]);
p1 = CoordTransform(p1, -xiTa);
p2 = CoordTransform(p2, -xiTa);
p3 = CoordTransform(p3, -xiTa);
p4 = CoordTransform(p4, -xiTa);
Rectangle2D rec = new Rectangle2D(p1, p2, p3, p4);
rectangles.Add(rec);
}
}
return(rectangles);
}
