Calculates the angle of a line defined by two points on a 2D surface. - CSharp System

CSharp examples for System:Math Geometry

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Description

Calculates the angle of a line defined by two points on a 2D surface.

Demo Code

/*/*from w  w w  .  ja v  a 2s. co m*/
 * Greenshot - a free and open source screenshot tool
 * Copyright (C) 2007-2012  Thomas Braun, Jens Klingen, Robin Krom
 * 
 * For more information see: http://getgreenshot.org/
 * The Greenshot project is hosted on Sourceforge: http://sourceforge.net/projects/greenshot/
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 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 1 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
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 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
using System;

public class Main{
        /// <summary>
      /// Calculates the angle of a line defined by two points on a 2D surface.
      /// </summary>
      /// <param name="x1">The point on the x-axis of the first point</param>
      /// <param name="x2">The point on the x-axis of the second point</param>
      /// <param name="y1">The point on the y-axis of the first point</param>
      /// <param name="y2">The point on the y-axis of the second point</param>
      /// <returns></returns>
      public static double Angle2D(int x1, int y1, int x2, int y2) {
         return Math.Atan2(y2 - y1, x2 - x1) * 180 / Math.PI;
      }
}

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