public override double Distance(Geometry geom)
{
if (geom.GetType() == typeof(Point3D))
{
Point3D p = geom as Point3D;
return(Math.Sqrt(Math.Pow(X - p.X, 2) + Math.Pow(Y - p.Y, 2) + Math.Pow(Z - p.Z, 2)));
}
return(base.Distance(geom));
}
public override double Distance(Geometry geom)
{
if (geom.GetType() == typeof(Point))
{
var p = geom as Point;
return(Math.Sqrt(Math.Pow(X - p.X, 2) + Math.Pow(Y - p.Y, 2)));
}
else if (geom is LineString)
{
return(geom.Distance(this));
}
else if (geom is MultiLineString)
{
return(geom.Distance(this));
}
else
{
throw new Exception("The method or operation is not implemented for this geometry type.");
}
}
public static bool Equals(Geometry g1, Geometry g2)
{
if (g1 == null && g2 == null)
{
return(true);
}
if (g1 == null || g2 == null)
{
return(false);
}
if (g1.GetType() != g2.GetType())
{
return(false);
}
if (g1 is Point)
{
return((g1 as Point).Equals(g2 as Point));
}
if (g1 is LineString)
{
return((g1 as LineString).Equals(g2 as LineString));
}
if (g1 is Polygon)
{
return((g1 as Polygon).Equals(g2 as Polygon));
}
if (g1 is MultiPoint)
{
return((g1 as MultiPoint).Equals(g2 as MultiPoint));
}
if (g1 is MultiLineString)
{
return((g1 as MultiLineString).Equals(g2 as MultiLineString));
}
if (g1 is MultiPolygon)
{
return((g1 as MultiPolygon).Equals(g2 as MultiPolygon));
}
throw new ArgumentException("The method or operation is not implemented on this geometry type.");
}