svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.impl / src / main / java / org / gvsig / fmap / geom / primitive / impl / Point2D.java @ 40435
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1 | 40435 | jjdelcerro | /* gvSIG. Geographic Information System of the Valencian Government
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2 | *
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3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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4 | * of the Valencian Government (CIT)
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5 | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | * as published by the Free Software Foundation; either version 2
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9 | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | */
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22 | package org.gvsig.fmap.geom.primitive.impl; |
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23 | |||
24 | import java.awt.Rectangle; |
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25 | import java.awt.Shape; |
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26 | import java.awt.geom.AffineTransform; |
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27 | import java.awt.geom.PathIterator; |
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28 | import java.awt.geom.Rectangle2D; |
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29 | |||
30 | import org.cresques.cts.ICoordTrans; |
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31 | import org.cresques.cts.IProjection; |
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32 | |||
33 | import org.gvsig.fmap.geom.DirectPosition; |
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34 | import org.gvsig.fmap.geom.Geometry; |
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35 | import org.gvsig.fmap.geom.exception.ReprojectionRuntimeException; |
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36 | import org.gvsig.fmap.geom.handler.AbstractHandler; |
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37 | import org.gvsig.fmap.geom.handler.FinalHandler; |
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38 | import org.gvsig.fmap.geom.handler.Handler; |
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39 | import org.gvsig.fmap.geom.primitive.Envelope; |
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40 | import org.gvsig.fmap.geom.primitive.FShape; |
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41 | import org.gvsig.fmap.geom.primitive.GeneralPathX; |
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42 | import org.gvsig.fmap.geom.primitive.Point; |
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43 | import org.gvsig.fmap.geom.primitive.PointIterator; |
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44 | import org.gvsig.fmap.geom.type.GeometryType; |
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45 | |||
46 | /**
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47 | * 2D point implementation.
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48 | *
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49 | * @author Vicente Caballero Navarro
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50 | * @author gvSIG team
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51 | */
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52 | public class Point2D extends AbstractPrimitive implements Point, DirectPosition { |
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53 | |||
54 | private static final long serialVersionUID = 1836257305083881299L; |
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55 | |||
56 | protected static final String COORDINATES_FIELD = "coordinates"; |
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57 | protected double x; |
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58 | protected double y; |
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59 | |||
60 | /**
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61 | * The constructor with the GeometryType like and argument
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62 | * is used by the {@link GeometryType}{@link #create()} to create the
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63 | * geometry
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64 | *
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65 | * @param type
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66 | * The geometry type
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67 | */
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68 | public Point2D(GeometryType geometryType) { |
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69 | super(geometryType, null, null); |
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70 | this.x = 0.0d; |
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71 | this.y = 0.0d; |
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72 | } |
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73 | |||
74 | /**
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75 | * Constructor used in the {@link Geometry#cloneGeometry()} method
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76 | */
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77 | Point2D(GeometryType geometryType, String id, IProjection projection, |
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78 | double x, double y) { |
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79 | super(geometryType, id, projection);
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80 | this.x = x;
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81 | this.y = y;
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82 | } |
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83 | |||
84 | public Point2D(double x, double y) { |
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85 | super(TYPES.POINT, SUBTYPES.GEOM2D);
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86 | this.x = x;
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87 | this.y = y;
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88 | } |
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89 | |||
90 | public Point2D(GeometryType geometryType, double x, double y) { |
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91 | super(geometryType, null, null); |
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92 | this.x = x;
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93 | this.y = y;
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94 | } |
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95 | |||
96 | public Point2D(int type, int subtype) { |
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97 | super(type, subtype);
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98 | this.x = 0.0d; |
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99 | this.y = 0.0d; |
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100 | } |
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101 | |||
102 | public Point2D(java.awt.geom.Point2D point) { |
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103 | super(TYPES.POINT, SUBTYPES.GEOM2D);
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104 | this.x = point.getX();
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105 | this.y = point.getY();
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106 | } |
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107 | |||
108 | /**
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109 | * Aplica la transformaci?nn de la matriz de transformaci?n que se pasa como
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110 | * par?metro.
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111 | *
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112 | * @param at
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113 | * Matriz de transformaci?n.
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114 | */
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115 | public void transform(AffineTransform at) { |
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116 | |||
117 | if (at == null) { |
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118 | return;
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119 | } |
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120 | |||
121 | double[] coordinates = getCoordinates(); |
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122 | at.transform(coordinates, 0, coordinates, 0, 1); |
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123 | setCoordinates(coordinates); |
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124 | } |
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125 | |||
126 | public boolean contains(double x, double y) { |
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127 | if ((this.x == x) || (this.y == y)) { |
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128 | return true; |
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129 | } else {
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130 | return false; |
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131 | } |
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132 | } |
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133 | |||
134 | public boolean contains(double x, double y, double w, double h) { |
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135 | return false; |
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136 | } |
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137 | |||
138 | public boolean intersects(double x, double y, double w, double h) { |
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139 | Rectangle2D.Double rAux = new Rectangle2D.Double(x, y, w, h); |
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140 | |||
141 | return rAux.contains(this.x, this.y); |
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142 | } |
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143 | |||
144 | public Rectangle getBounds() { |
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145 | return new Rectangle((int) x, (int) y, 0, 0); |
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146 | } |
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147 | |||
148 | public double getX() { |
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149 | return x;
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150 | } |
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151 | |||
152 | public double getY() { |
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153 | return y;
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154 | } |
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155 | |||
156 | public boolean contains(java.awt.geom.Point2D p) { |
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157 | return false; |
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158 | } |
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159 | |||
160 | public Rectangle2D getBounds2D() { |
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161 | return new Rectangle2D.Double(x - 0.01, y - 0.01, 0.02, 0.02); |
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162 | } |
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163 | |||
164 | public boolean contains(Rectangle2D r) { |
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165 | return false; |
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166 | } |
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167 | |||
168 | public boolean intersects(Rectangle2D r) { |
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169 | return r.contains(x, y);
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170 | } |
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171 | |||
172 | public Shape getShape(AffineTransform affineTransform) { |
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173 | return this; |
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174 | } |
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175 | |||
176 | public PathIterator getPathIterator(AffineTransform at) { |
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177 | return new PointIterator(getPoint2D(), at); |
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178 | } |
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179 | |||
180 | public PathIterator getPathIterator(AffineTransform at, double flatness) { |
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181 | return new PointIterator(getPoint2D(), at); |
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182 | } |
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183 | |||
184 | private java.awt.geom.Point2D getPoint2D() {
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185 | return new java.awt.geom.Point2D.Double(x, y); |
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186 | } |
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187 | |||
188 | public int getShapeType() { |
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189 | return TYPES.POINT;
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190 | } |
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191 | |||
192 | public FShape cloneFShape() {
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193 | return new Point2D(getGeometryType(), id, projection, x, y); |
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194 | } |
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195 | |||
196 | public void reProject(ICoordTrans ct) { |
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197 | java.awt.geom.Point2D p = getPoint2D(); |
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198 | |||
199 | try {
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200 | p = ct.convert(p, p); |
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201 | this.x = p.getX();
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202 | this.y = p.getY();
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203 | } catch (Exception exc) { |
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204 | /*
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205 | * This can happen when the reprojection lib is unable
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206 | * to reproject (for example the source point
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207 | * is out of the valid range and some computing
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208 | * problem happens)
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209 | */
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210 | throw new ReprojectionRuntimeException( |
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211 | ct.getPOrig(), ct.getPDest(), getPoint2D(), exc); |
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212 | } |
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213 | } |
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214 | |||
215 | public Handler[] getStretchingHandlers() { |
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216 | return new Handler[] { new PointHandler(0, x, y, this) }; |
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217 | } |
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218 | |||
219 | public Handler[] getSelectHandlers() { |
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220 | return new Handler[] { new PointHandler(0, x, y, this) }; |
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221 | } |
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222 | |||
223 | /**
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224 | *
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225 | * @author Vicente Caballero Navarro
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226 | * @author gvSIG team
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227 | */
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228 | class PointHandler extends AbstractHandler implements FinalHandler { |
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229 | |||
230 | private final Point gvSIGPoint; |
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231 | |||
232 | public PointHandler(int i, double x, double y, Point gvSIGPoint) { |
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233 | this.gvSIGPoint = gvSIGPoint;
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234 | point = new java.awt.geom.Point2D.Double(x, y);
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235 | index = i; |
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236 | } |
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237 | |||
238 | public void move(double movex, double movey) { |
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239 | gvSIGPoint.setX(gvSIGPoint.getX() + movex); |
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240 | gvSIGPoint.setY(gvSIGPoint.getY() + movey); |
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241 | } |
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242 | |||
243 | public void set(double setx, double sety) { |
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244 | gvSIGPoint.setX(setx); |
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245 | gvSIGPoint.setY(sety); |
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246 | } |
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247 | } |
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248 | |||
249 | public int getDimension() { |
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250 | return 2; |
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251 | } |
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252 | |||
253 | public Envelope getEnvelope() {
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254 | return new Envelope2D(x - 0.01, y - 0.01, x + 0.02, y + 0.02); |
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255 | } |
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256 | |||
257 | public GeneralPathX getGeneralPath() {
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258 | return null; |
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259 | } |
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260 | |||
261 | public DirectPosition getDirectPosition() {
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262 | return this; |
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263 | } |
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264 | |||
265 | public double getOrdinate(int dim) { |
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266 | if (dim == Geometry.DIMENSIONS.X) {
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267 | return getX();
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268 | } else
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269 | if (dim == Geometry.DIMENSIONS.Y) {
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270 | return getY();
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271 | } else {
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272 | return 0; |
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273 | } |
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274 | } |
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275 | |||
276 | public boolean equals(Object other) { |
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277 | if (!super.equals(other)) { |
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278 | return false; |
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279 | } |
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280 | Point2D pother = (Point2D) other; |
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281 | if (Math.abs(this.getX() - pother.getX()) > 0.0000001) { |
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282 | return false; |
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283 | } |
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284 | if (Math.abs(this.getY() - pother.getY()) > 0.0000001) { |
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285 | return false; |
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286 | } |
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287 | return true; |
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288 | |||
289 | } |
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290 | |||
291 | public double[] getCoordinates() { |
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292 | return new double[] { x, y }; |
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293 | } |
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294 | |||
295 | public double getCoordinateAt(int dimension) { |
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296 | switch (dimension) {
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297 | case Geometry.DIMENSIONS.X:
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298 | return x;
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299 | case Geometry.DIMENSIONS.Y:
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300 | return y;
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301 | default:
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302 | throw new ArrayIndexOutOfBoundsException(dimension); |
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303 | } |
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304 | } |
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305 | |||
306 | public void setCoordinateAt(int dimension, double value) { |
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307 | switch (dimension) {
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308 | case Geometry.DIMENSIONS.X:
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309 | this.x = value;
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310 | break;
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311 | case Geometry.DIMENSIONS.Y:
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312 | this.y = value;
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313 | break;
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314 | default:
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315 | throw new ArrayIndexOutOfBoundsException(dimension); |
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316 | } |
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317 | } |
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318 | |||
319 | public void setCoordinates(double[] values) { |
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320 | this.x = values[Geometry.DIMENSIONS.X];
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321 | this.y = values[Geometry.DIMENSIONS.Y];
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322 | } |
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323 | |||
324 | public void setX(double x) { |
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325 | this.x = x;
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326 | } |
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327 | |||
328 | public void setY(double y) { |
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329 | this.y = y;
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330 | } |
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331 | |||
332 | public String toString() { |
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333 | StringBuffer buffer = new StringBuffer(); |
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334 | double[] coordinates = getCoordinates(); |
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335 | buffer.append(getFullTypeName()).append("(").append(coordinates[0]); |
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336 | for (int i = 1; i < coordinates.length; i++) { |
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337 | buffer.append(",").append(coordinates[i]);
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338 | } |
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339 | buffer.append(")");
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340 | return buffer.toString();
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341 | } |
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342 | |||
343 | protected String getFullTypeName() { |
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344 | return "Point2D"; |
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345 | } |
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346 | |||
347 | public int getType() { |
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348 | return TYPES.POINT;
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349 | } |
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350 | } |