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2c35af0592
Merge commits from Greenshot up through bd71f47e95a46642fe6a83bdd76cc4d2a7eed7c2. Some bug fixes, but mostly structural cleanup.
68 lines
2.7 KiB
C#
68 lines
2.7 KiB
C#
/*
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* Greenshot - a free and open source screenshot tool
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* Copyright (C) 2007-2015 Thomas Braun, Jens Klingen, Robin Krom
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*
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* For more information see: http://getgreenshot.org/
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* The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 1 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using System;
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namespace Greenshot.Helpers
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{
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/// <summary>
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/// Description of GeometryHelper.
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/// </summary>
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public static class GeometryHelper
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{
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/// <summary>
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/// Finds the distance between two points on a 2D surface.
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/// </summary>
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/// <param name="x1">The point on the x-axis of the first point</param>
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/// <param name="x2">The point on the x-axis of the second point</param>
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/// <param name="y1">The point on the y-axis of the first point</param>
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/// <param name="y2">The point on the y-axis of the second point</param>
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/// <returns></returns>
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public static int Distance2D(int x1, int y1, int x2, int y2)
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{
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//Our end result
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int result = 0;
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//Take x2-x1, then square it
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double part1 = Math.Pow(x2 - x1, 2);
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//Take y2-y1, then square it
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double part2 = Math.Pow(y2 - y1, 2);
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//Add both of the parts together
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double underRadical = part1 + part2;
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//Get the square root of the parts
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result = (int)Math.Sqrt(underRadical);
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//Return our result
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return result;
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}
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/// <summary>
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/// Calculates the angle of a line defined by two points on a 2D surface.
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/// </summary>
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/// <param name="x1">The point on the x-axis of the first point</param>
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/// <param name="x2">The point on the x-axis of the second point</param>
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/// <param name="y1">The point on the y-axis of the first point</param>
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/// <param name="y2">The point on the y-axis of the second point</param>
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/// <returns></returns>
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public static double Angle2D(int x1, int y1, int x2, int y2)
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{
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return Math.Atan2(y2 - y1, x2 - x1) * 180 / Math.PI;
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}
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}
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} |