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// Copyright (c) 2013-2022 Bruyère Jean-Philippe jp_bruyere@hotmail.com
//
// This code is licensed under the MIT license (MIT) (http://opensource.org/licenses/MIT)
using System;
namespace Drawing2D {
public struct PointD : IEquatable<PointD>, IEquatable<double> {
public static readonly PointD UnitX = new PointD (1,0);
public static readonly PointD UnitY = new PointD (0,1);
public double X;
public double Y;
public PointD (double x, double y)
{
X = x;
Y = y;
}
public double Length => Math.Sqrt (Math.Pow (X, 2) + Math.Pow (Y, 2));
public PointD Normalized {
get {
double l = Length;
return new PointD (X / l, Y / l);
}
}
public static implicit operator Point (PointD p) => new Point ((int)Math.Round (p.X), (int)Math.Round (p.Y));
public static implicit operator PointD (double i) => new PointD (i, i);
public static PointD operator + (PointD p1, PointD p2) => new PointD (p1.X + p2.X, p1.Y + p2.Y);
public static PointD operator + (PointD p, double i) => new PointD (p.X + i, p.Y + i);
public static PointD operator - (PointD p1, PointD p2) => new PointD (p1.X - p2.X, p1.Y - p2.Y);
public static PointD operator - (PointD p, double i) => new PointD (p.X - i, p.Y - i);
public static PointD operator * (PointD p1, PointD p2) => new PointD (p1.X * p2.X, p1.Y * p2.Y);
public static PointD operator * (PointD p, double d) => new PointD (p.X * d, p.Y * d);
public static PointD operator / (PointD p1, PointD p2) => new PointD (p1.X / p2.X, p1.Y / p2.Y);
public static PointD operator / (PointD p, double d) => new PointD (p.X / d, p.Y / d);
public static bool operator == (PointD s1, PointD s2) => s1.Equals (s2);
public static bool operator == (PointD s, double i) => s.Equals (i);
public static bool operator != (PointD s1, PointD s2) => !s1.Equals (s2);
public static bool operator != (PointD s, double i) => !s.Equals (i);
public static bool operator > (PointD p1, PointD p2) => p1.X > p2.X && p1.Y > p2.Y;
public static bool operator > (PointD s, double i) => s.X > i && s.Y > i;
public static bool operator < (PointD p1, PointD p2) => p1.X < p2.X && p1.Y < p2.Y;
public static bool operator < (PointD s, double i) => s.X < i && s.Y < i;
public static bool operator >= (PointD p1, PointD p2) => p1.X >= p2.X && p1.Y >= p2.Y;
public static bool operator >= (PointD s, double i) => s.X >= i && s.Y >= i;
public static bool operator <= (PointD p1, PointD p2) => p1.X <= p2.X && p1.Y <= p2.Y;
public static bool operator <= (PointD s, double i) => s.X <= i && s.Y <= i;
public override int GetHashCode () => HashCode.Combine (X, Y);
public override bool Equals (object obj) =>
obj is PointD p ? Equals (p) : obj is double d ? Equals (d) : false;
public bool Equals(PointD other) => X == other.X && Y == other.Y;
public bool Equals(double i) => X == i && Y == i;
public override string ToString () => string.Format ("{0},{1}", X, Y);
public static PointD Parse (string s)
{
if (string.IsNullOrEmpty (s))
return default (PointD);
string [] d = s.Trim ().Split (',');
if (d.Length == 2)
return new PointD (double.Parse (d [0]), double.Parse (d [1]));
else if (d.Length == 1) {
double tmp = double.Parse (d [0]);
return new PointD (tmp, tmp);
}
throw new Exception ("Crow.PointD Parsing Error: " + s);
}
}
}
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