ti_mo
73 lines
2.1 KiB
C#
73 lines
2.1 KiB
C#
using System;
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using System.Collections.Generic;
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using Avalonia.Media;
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using CommunityToolkit.Mvvm.Input;
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namespace DelauneyTriangulation.Models;
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public static class Geometries
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{
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public sealed class Point(double x, double y, double r = 3, Color? color = null)
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{
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public double X { get; } = x;
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public double Y { get; } = y;
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public double R { get; } = r;
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public Color Color { get; set; } = color ?? new Color(255, 255, 255, 255);
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public double Left => X - R;
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public double Top => Y - R;
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public double Size => 2 * R;
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}
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public sealed class PointComparer : IComparer<Point>
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{
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public static readonly PointComparer Instance = new();
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public int Compare(Point? a, Point? b)
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{
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if (ReferenceEquals(a, b)) return 0;
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if (a is null) return -1;
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if (b is null) return 1;
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int c = a.X.CompareTo(b.X);
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if (c != 0) return c;
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c = a.Y.CompareTo(b.Y);
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if (c != 0) return c;
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return a.R.CompareTo(b.R);
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}
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}
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public sealed class Edge(double x1, double y1, double x2, double y2)
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{
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public double X1 { get; } = x1;
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public double X2 { get; } = x2;
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public double Y1 { get; } = y1;
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public double Y2 { get; } = y2;
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public Avalonia.Point Start => new(X1, Y1);
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public Avalonia.Point End => new(X2, Y2);
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}
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public sealed class Circle(double x, double y, double r)
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{
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public double X { get; } = x;
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public double Y { get; } = y;
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public double R { get; } = r;
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public double Left => X - R;
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public double Top => Y - R;
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public double Diameter => 2 * R;
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}
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public sealed class Triangle(Point p1, Point p2, Point p3)
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{
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public Avalonia.Point X { get; } = new(p1.X, p1.Y);
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public Avalonia.Point Y { get; } = new(p2.X, p2.Y);
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public Avalonia.Point Z { get; } = new(p3.X, p3.Y);
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public IReadOnlyList<Avalonia.Point> Vertices => [ X, Y, Z ];
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}
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} |