1 /*******************************************************************************
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2 * Copyright (c) 2007, 2010 Association for Decentralized Information Management
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3 * in Industry THTH ry.
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4 * All rights reserved. This program and the accompanying materials
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5 * are made available under the terms of the Eclipse Public License v1.0
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6 * which accompanies this distribution, and is available at
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7 * http://www.eclipse.org/legal/epl-v10.html
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10 * VTT Technical Research Centre of Finland - initial API and implementation
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11 *******************************************************************************/
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12 package org.simantics.g2d.routing.algorithm1;
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14 import java.awt.geom.Rectangle2D;
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17 public interface Direction {
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19 double front(Rectangle rectangle);
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20 double back(Rectangle rectangle);
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21 double minSide(Rectangle rectangle);
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22 double maxSide(Rectangle rectangle);
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23 double front(Rectangle2D rectangle);
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24 double back(Rectangle2D rectangle);
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25 double minSide(Rectangle2D rectangle);
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26 double maxSide(Rectangle2D rectangle);
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27 Direction turnLeft();
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28 Direction turnRight();
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29 double getDir(double x, double y);
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30 double getSide(double x, double y);
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31 RoutePencil createPencil(double front, double back, double min, double max, double penalty, RoutePencil parent);
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33 public static final Direction EAST = new East();
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34 public static final Direction SOUTH = new South();
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35 public static final Direction WEST = new West();
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36 public static final Direction NORTH = new North();
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37 public static final Direction[] directions = new Direction[] { EAST, SOUTH, WEST, NORTH };
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39 public static class East implements Direction {
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40 public int getId() { return 0; }
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41 public double front(Rectangle rect) { return rect.x0; }
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42 public double back(Rectangle rect) { return rect.x1; }
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43 public double minSide(Rectangle rect) { return rect.y0; }
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44 public double maxSide(Rectangle rect) { return rect.y1; }
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45 public double front(Rectangle2D rect) { return rect.getMinX(); }
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46 public double back(Rectangle2D rect) { return rect.getMaxX(); }
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47 public double minSide(Rectangle2D rect) { return rect.getMinY(); }
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48 public double maxSide(Rectangle2D rect) { return rect.getMaxY(); }
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49 public Direction turnLeft() { return NORTH; }
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50 public Direction turnRight() { return SOUTH; }
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51 public RoutePencil createPencil(double front, double back, double min, double max, double penalty, RoutePencil parent) {
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52 return new RoutePencil(front, min, back, max, penalty, this, parent);
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54 public double getDir(double x, double y) { return x; }
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55 public double getSide(double x, double y) { return y; }
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58 public static class South implements Direction {
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59 public int getId() { return 1; }
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60 public double front(Rectangle rect) { return rect.y0; }
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61 public double back(Rectangle rect) { return rect.y1; }
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62 public double minSide(Rectangle rect) { return rect.x0; }
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63 public double maxSide(Rectangle rect) { return rect.x1; }
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64 public double front(Rectangle2D rect) { return rect.getMinY(); }
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65 public double back(Rectangle2D rect) { return rect.getMaxY(); }
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66 public double minSide(Rectangle2D rect) { return rect.getMinX(); }
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67 public double maxSide(Rectangle2D rect) { return rect.getMaxX(); }
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68 public Direction turnLeft() { return EAST; }
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69 public Direction turnRight() { return WEST; }
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70 public RoutePencil createPencil(double front, double back, double min, double max, double penalty, RoutePencil parent) {
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71 return new RoutePencil(min, front, max, back, penalty, this, parent);
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73 public double getDir(double x, double y) { return y; }
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74 public double getSide(double x, double y) { return x; }
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77 public static class West implements Direction {
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78 public int getId() { return 2; }
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79 public double front(Rectangle rect) { return -rect.x1; }
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80 public double back(Rectangle rect) { return -rect.x0; }
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81 public double minSide(Rectangle rect) { return rect.y0; }
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82 public double maxSide(Rectangle rect) { return rect.y1; }
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83 public double front(Rectangle2D rect) { return -rect.getMaxX(); }
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84 public double back(Rectangle2D rect) { return -rect.getMinX(); }
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85 public double minSide(Rectangle2D rect) { return rect.getMinY(); }
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86 public double maxSide(Rectangle2D rect) { return rect.getMaxY(); }
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87 public Direction turnLeft() { return SOUTH; }
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88 public Direction turnRight() { return NORTH; }
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89 public RoutePencil createPencil(double front, double back, double min, double max, double penalty, RoutePencil parent) {
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90 return new RoutePencil(-back, min, -front, max, penalty, this, parent);
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92 public double getDir(double x, double y) { return -x; }
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93 public double getSide(double x, double y) { return y; }
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96 public static class North implements Direction {
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97 public int getId() { return 3; }
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98 public double front(Rectangle rect) { return -rect.y1; }
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99 public double back(Rectangle rect) { return -rect.y0; }
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100 public double minSide(Rectangle rect) { return rect.x0; }
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101 public double maxSide(Rectangle rect) { return rect.x1; }
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102 public double front(Rectangle2D rect) { return -rect.getMaxY(); }
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103 public double back(Rectangle2D rect) { return -rect.getMinY(); }
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104 public double minSide(Rectangle2D rect) { return rect.getMinX(); }
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105 public double maxSide(Rectangle2D rect) { return rect.getMaxX(); }
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106 public Direction turnLeft() { return WEST; }
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107 public Direction turnRight() { return EAST; }
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108 public RoutePencil createPencil(double front, double back, double min, double max, double penalty, RoutePencil parent) {
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109 return new RoutePencil(min, -back, max, -front, penalty, this, parent);
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111 public double getDir(double x, double y) { return -y; }
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112 public double getSide(double x, double y) { return x; }
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