public static double CoincidenceEvaluation(Extent2D ext1, Extent2D ext2) // newly 20130402
{
double dist = ext1.Center.DistTo(ext2.Center);
double minArea = Math.Min(ext1.Area, ext2.Area);
return(dist * dist / minArea);
}
// 20111014
public Extent2D GetExtent()
{
Extent2D result = Extent2D.Null;
points.ForEach(p => result.AddPoint(p));
return(result);
}
public bool IsExtentsCross(Extent2D extents)
{
//Point2D p1 = new Point2D(min.x, max.y);
//Point2D p2 = new Point2D(max.x, min.y);
//return extents.IsPointIn(p1) || extents.IsPointIn(p2) || extents.IsPointIn(min) || extents.IsPointIn(max) || IsExtentsIn(extents) || extents.IsExtentsIn(this);
Extent2D sum = this + extents;
return((sum.XRange <= this.XRange + extents.XRange) && (sum.YRange <= this.YRange + extents.YRange));
}
private void Init()
{
foreach (Point2D p in Points)
{
BoxVisual3D box = new BoxVisual3D {
Center = new Point3D(p.x, p.y, BoxInitHeight / 2), Width = BoxSize, Length = BoxSize, Height = BoxInitHeight, Fill = System.Windows.Media.Brushes.Cyan
};
Boxes.Add(box);
Viewport.Children.Add(box);
}
var center = new TongJi.Geometry.Extent2D(Points).Center;
Viewport.LookAt(new System.Windows.Media.Media3D.Point3D(center.x, center.y, 0), new System.Windows.Media.Media3D.Vector3D(0, 1, -0.8), 500);
Viewport.ZoomExtents(1000);
}
// 20111014
public void Add(Extent2D ext)
{
if (this.IsNull)
{
min = ext.min;
max = ext.max;
IsNull = ext.IsNull;
}
else
{
if (ext.IsNull)
{
return;
}
min = new Point2D(Math.Min(min.x, ext.min.x), Math.Min(min.y, ext.min.y));
max = new Point2D(Math.Max(max.x, ext.max.x), Math.Max(max.y, ext.max.y));
}
}
public bool IsExtentsIn(Extent2D extents)
{
return(extents.min.x >= min.x && extents.min.y >= min.y && extents.max.x <= max.x && extents.max.y <= max.y);
}
public bool IsCoveredBy(Extent2D extents) // newly 20130328
{
return(extents.min.x >= min.x && extents.min.y >= min.y && extents.max.x <= max.x && extents.max.y <= max.y);
}
public bool IsExtentsCross(Extent2D extents)
{
Extent2D sum = this + extents;
return((sum.XRange <= this.XRange + extents.XRange) && (sum.YRange <= this.YRange + extents.YRange));
}