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1   package org.opentrafficsim.draw;
2   
3   import org.djutils.draw.bounds.Bounds2d;
4   import org.djutils.draw.line.PolyLine2d;
5   import org.djutils.draw.point.Point2d;
6   import org.opentrafficsim.base.geometry.OtsShape;
7   
8   /**
9    * This class returns bounds that respond to {@code contains(x, y)} by checking a clickable expanse around a line.
10   * <p>
11   * Copyright (c) 2024-2024 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
12   * BSD-style license. See <a href="https://opentrafficsim.org/docs/license.html">OpenTrafficSim License</a>.
13   * </p>
14   * @author <a href="https://github.com/wjschakel">Wouter Schakel</a>
15   */
16  public interface ClickableLineLocatable extends ClickableLocatable
17  {
18  
19      @Override
20      default Bounds2d getBounds()
21      {
22          OtsShape shape = getShape();
23          return new Bounds2d(shape.getMaxX() - shape.getMinX(), shape.getMaxY() - shape.getMinY())
24          {
25              /** */
26              private static final long serialVersionUID = 20241006L;
27  
28              @Override
29              public boolean contains(final double x, final double y)
30              {
31                  Point2d point = new Point2d(x, y);
32                  return getLine().closestPointOnPolyLine(point).distance(point) < 0.5 * EXPANSE; // 0.5 as on both sides of line
33              }
34          };
35      }
36  
37      /**
38       * 
39       * Returns line representation of this object in object coordinates.
40       * @return line representation of this object in object coordinates.
41       */
42      PolyLine2d getLine();
43  
44  }