package demo;
   
   import java.util.ArrayList;
   import java.util.List;
   
   import org.djutils.draw.DrawRuntimeException;
   import org.djutils.draw.line.LineSegment2d;
   import org.djutils.draw.line.PolyLine2d;
   import org.djutils.draw.point.Point2d;
  
  /**
   * LineDemos.java.
   * <p>
   * Copyright (c) 2021-2022 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
   * BSD-style license. See <a href="https://djutils.org/docs/current/djutils/licenses.html">DJUTILS License</a>.
   * </p>
   * @author <a href="https://www.tudelft.nl/averbraeck">Alexander Verbraeck</a>
   * @author <a href="https://www.tudelft.nl/pknoppers">Peter Knoppers</a>
   */
  public final class LineDemos
  {
      /**
       * Do not instantiate.
       */
      private LineDemos()
      {
          // Do not instantiate
      }
  
      /**
       * Demonstrate the line classes.
       * @param args String[]; the command line arguments (not used)
       * @throws DrawRuntimeException ...
       */
      public static void main(final String[] args) throws DrawRuntimeException
      {
          PolyLine2d pl1 = new PolyLine2d(new Point2d(1, 2), new Point2d(3, 4), new Point2d(20, -5));
          System.out.println(pl1);
          Point2d[] pointArray = new Point2d[] { new Point2d(1, 2), new Point2d(3, 4), new Point2d(20, -5) };
          PolyLine2d pl2 = new PolyLine2d(pointArray);
          System.out.println(pl2);
          double[] x = new double[] { 1, 3, 20 };
          double[] y = new double[] { 2, 4, -5 };
          PolyLine2d pl3 = new PolyLine2d(x, y);
          System.out.println(pl3);
          List<Point2d> pointList = new ArrayList<>();
          pointList.add(new Point2d(1, 2));
          pointList.add(new Point2d(3, 4));
          pointList.add(new Point2d(20, -5));
          PolyLine2d pl4 = new PolyLine2d(pointList);
          System.out.println(pl4);
  
          PolyLine2d polyLine2d = new PolyLine2d(new Point2d(1, 1), new Point2d(5, 1), new Point2d(5, 2), new Point2d(9, 5));
          System.out.println("PolyLine: " + polyLine2d);
          System.out.println("length: " + polyLine2d.getLength());
          System.out.println("fragment: " + polyLine2d.extract(2.0, 9.0));
          System.out.println("fragment: " + polyLine2d.extractFractional(0.2, 0.9));
  
          System.out.println("PolyLine: " + polyLine2d);
          System.out.println("location at distance 7.0: " + polyLine2d.getLocation(7.0));
          System.out.println("extended location at distance 15: " + polyLine2d.getLocationExtended(15.0));
          System.out.println("extended location at distance -8: " + polyLine2d.getLocationExtended(-8.0));
  
          System.out.println("PolyLine: " + polyLine2d);
          for (int index = 0; index < polyLine2d.size() - 1; index++)
          {
              System.out.println("segment " + index + ": " + polyLine2d.getSegment(index));
          }
  
          System.out.print(polyLine2d.toPlot());
  
          System.out.println("PolyLine: " + polyLine2d);
          System.out.println("closest point to (0,1): " + polyLine2d.closestPointOnPolyLine(new Point2d(0, 1)));
          System.out.println("closest point to (6,0): " + polyLine2d.closestPointOnPolyLine(new Point2d(6, 0)));
          System.out.println("closest point to (10,0): " + polyLine2d.closestPointOnPolyLine(new Point2d(10, 0)));
          System.out.println("closest point to (50,0): " + polyLine2d.closestPointOnPolyLine(new Point2d(50, 0)));
          System.out.println("project (0,0) orthogonal: " + polyLine2d.projectOrthogonal(new Point2d(0, 0)));
          System.out.println("project (4,0) orthogonal: " + polyLine2d.projectOrthogonal(new Point2d(4, 0)));
          System.out.println("project (5,0) orthogonal: " + polyLine2d.projectOrthogonal(new Point2d(5, 0)));
          System.out.println("project (6,0) orthogonal: " + polyLine2d.projectOrthogonal(new Point2d(6, 0)));
          System.out.println("project (10,0) orthogonal: " + polyLine2d.projectOrthogonal(new Point2d(10, 0)));
          System.out.println("project (50,0) orthogonal: " + polyLine2d.projectOrthogonal(new Point2d(50, 0)));
          System.out.println("project (50,0) orthogonal extended: " + polyLine2d.projectOrthogonalExtended(new Point2d(50, 0)));
  
          LineSegment2d ls1 = new LineSegment2d(new Point2d(1, 2), new Point2d(5, 0));
          System.out.println("ls1: " + ls1);
          LineSegment2d ls2 = new LineSegment2d(new Point2d(1, 2), 5, 0);
          System.out.println("ls2: " + ls2);
          LineSegment2d ls3 = new LineSegment2d(1, 2, new Point2d(5, 0));
          System.out.println("ls3: " + ls3);
          LineSegment2d ls4 = new LineSegment2d(1, 2, 5, 0);
          System.out.println("ls4: " + ls4);
      }
  }