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/*
* GNU AFFERO GENERAL PUBLIC LICENSE
* Version 3, 19 November 2007
* Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
* Everyone is permitted to copy and distribute verbatim copies
* of this license document, but changing it is not allowed.
*/
using System;
using System.Drawing;
namespace UVtools.Core.Extensions
{
public static class PointExtensions
{
public static double FindLength(Point start, Point end) => Math.Sqrt(Math.Pow(end.Y - start.Y, 2) + Math.Pow(end.X - start.X, 2));
public static Point Rotate(this Point point, double angleDegree, Point pivot = default)
{
if (angleDegree % 360 == 0) return point;
double angle = angleDegree * Math.PI / 180;
double cos = Math.Cos(angle);
double sin = Math.Sin(angle);
int dx = point.X - pivot.X;
int dy = point.Y - pivot.Y;
double x = cos * dx - sin * dy + pivot.X;
double y = sin * dx + cos * dy + pivot.Y;
return new((int)Math.Round(x), (int)Math.Round(y));
}
public static PointF Rotate(this PointF point, double angleDegree, PointF pivot = default)
{
if (angleDegree % 360 == 0) return point;
double angle = angleDegree * Math.PI / 180;
double cos = Math.Cos(angle);
double sin = Math.Sin(angle);
double dx = point.X - pivot.X;
double dy = point.Y - pivot.Y;
double x = cos * dx - sin * dy + pivot.X;
double y = sin * dx + cos * dy + pivot.Y;
return new((float) x, (float) y);
}
public static Point Half(this Point point)=> new(point.X / 2, point.Y / 2);
public static PointF Half(this PointF point) => new(point.X / 2, point.Y / 2);
public static Size ToSize(this Point point) => new(point.X, point.Y);
public static SizeF ToSize(this PointF point) => new(point.X, point.Y);
}
}
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