svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.jts / src / main / java / org / gvsig / fmap / geom / jts / primitive / DefaultEnvelope.java @ 45941
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1 | 42260 | fdiaz | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | *
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4 | * Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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 | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | */
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24 | |||
25 | package org.gvsig.fmap.geom.jts.primitive; |
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26 | |||
27 | 42464 | fdiaz | import java.util.ArrayList; |
28 | 42260 | fdiaz | |
29 | 42464 | fdiaz | import com.vividsolutions.jts.geom.Coordinate; |
30 | 44003 | jjdelcerro | import org.cresques.cts.IProjection; |
31 | 42464 | fdiaz | |
32 | 42260 | fdiaz | import org.slf4j.Logger; |
33 | import org.slf4j.LoggerFactory; |
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34 | |||
35 | import org.gvsig.fmap.geom.Geometry; |
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36 | 42772 | dmartinezizquierdo | import org.gvsig.fmap.geom.Geometry.DIMENSIONS; |
37 | 42260 | fdiaz | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
38 | import org.gvsig.fmap.geom.Geometry.TYPES; |
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39 | import org.gvsig.fmap.geom.GeometryLocator; |
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40 | import org.gvsig.fmap.geom.GeometryManager; |
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41 | import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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42 | 42464 | fdiaz | import org.gvsig.fmap.geom.jts.GeometryJTS; |
43 | import org.gvsig.fmap.geom.jts.util.ArrayListCoordinateSequence; |
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44 | import org.gvsig.fmap.geom.jts.util.JTSUtils; |
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45 | 42260 | fdiaz | import org.gvsig.fmap.geom.primitive.Envelope; |
46 | import org.gvsig.fmap.geom.primitive.EnvelopeNotInitializedException; |
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47 | 44040 | jjdelcerro | import org.gvsig.fmap.geom.primitive.Line; |
48 | 42260 | fdiaz | import org.gvsig.fmap.geom.primitive.Point; |
49 | 44040 | jjdelcerro | import org.gvsig.fmap.geom.primitive.Polygon; |
50 | 42260 | fdiaz | import org.gvsig.fmap.geom.primitive.Surface; |
51 | import org.gvsig.tools.ToolsLocator; |
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52 | import org.gvsig.tools.dynobject.DynStruct; |
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53 | import org.gvsig.tools.persistence.PersistenceManager; |
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54 | import org.gvsig.tools.persistence.PersistentState; |
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55 | import org.gvsig.tools.persistence.exception.PersistenceException; |
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56 | |||
57 | |||
58 | /**
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59 | * A minimum bounding box or rectangle. Regardless of dimension, an Envelope
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60 | * can be represented without ambiguity as two direct positions (coordinate
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61 | * points). To encode an Envelope, it is sufficient to encode these two
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62 | * points. This is consistent with all of the data types in this
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63 | * specification, their state is represented by their publicly accessible
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64 | * attributes.
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65 | |||
66 | * @author Vicente Caballero Navarro
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67 | */
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68 | 44040 | jjdelcerro | @SuppressWarnings("UseSpecificCatch") |
69 | 42260 | fdiaz | public abstract class DefaultEnvelope implements Envelope, org.gvsig.tools.lang.Cloneable{ |
70 | private static final Logger LOG = |
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71 | LoggerFactory.getLogger(DefaultEnvelope.class); |
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72 | |||
73 | public static final String PERSISTENCE_DEFINITION_NAME = "Envelope"; |
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74 | |||
75 | protected static final String LOWERCORNER_FIELD = "lowerCorner"; |
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76 | protected static final String UPPERCORNER_FIELD = "upperCorner"; |
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77 | |||
78 | protected Point min; |
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79 | protected Point max; |
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80 | |||
81 | protected boolean isEmpty; |
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82 | |||
83 | 44003 | jjdelcerro | protected IProjection projection;
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84 | |||
85 | 42464 | fdiaz | private com.vividsolutions.jts.geom.Polygon jtsGeom = null; |
86 | |||
87 | 42260 | fdiaz | protected static GeometryManager manager = GeometryLocator.getGeometryManager(); |
88 | |||
89 | public DefaultEnvelope(){
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90 | super();
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91 | isEmpty = true;
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92 | } |
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93 | |||
94 | public DefaultEnvelope(Point min, Point max){ |
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95 | super();
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96 | this.min = min;
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97 | this.max = max;
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98 | isEmpty = false;
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99 | } |
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100 | |||
101 | public String toString() { |
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102 | if( this.isEmpty ) { |
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103 | 42388 | jjdelcerro | return "POLYGON()"; |
104 | 42260 | fdiaz | } |
105 | 42388 | jjdelcerro | // Para el 3D estaria mal ya que probablemente habria que devolber un cubo.
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106 | StringBuilder builder = new StringBuilder(); |
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107 | builder.append("POLYGON ((");
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108 | builder.append(this.min.getX());
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109 | builder.append(" ");
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110 | builder.append(this.min.getY());
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111 | builder.append(", ");
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112 | builder.append(this.min.getX());
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113 | builder.append(" ");
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114 | builder.append(this.max.getY());
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115 | builder.append(", ");
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116 | builder.append(this.max.getX());
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117 | builder.append(" ");
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118 | builder.append(this.max.getY());
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119 | builder.append(", ");
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120 | builder.append(this.max.getX());
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121 | builder.append(" ");
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122 | builder.append(this.min.getY());
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123 | builder.append(", ");
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124 | builder.append(this.min.getX());
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125 | builder.append(" ");
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126 | builder.append(this.min.getY());
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127 | builder.append("))");
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128 | return builder.toString();
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129 | 42260 | fdiaz | } |
130 | |||
131 | /**
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132 | * Returns the center ordinate along the specified dimension.
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133 | *
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134 | * @param dimension DOCUMENT ME!
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135 | *
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136 | * @return DOCUMENT ME!
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137 | */
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138 | public double getCenter(int dimension) { |
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139 | if (isEmpty){
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140 | throw new EnvelopeNotInitializedException(); |
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141 | } |
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142 | return (min.getCoordinateAt(dimension) + max.getCoordinateAt(dimension)) * 0.5; |
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143 | } |
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144 | |||
145 | /**
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146 | * Returns the envelope length along the specified dimension.
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147 | *
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148 | * @param dimension
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149 | *
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150 | * @return
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151 | */
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152 | public double getLength(int dimension) { |
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153 | if (isEmpty){
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154 | throw new EnvelopeNotInitializedException(); |
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155 | } |
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156 | if (max.getCoordinateAt(dimension) > min.getCoordinateAt(dimension)) {
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157 | return max.getCoordinateAt(dimension) - min.getCoordinateAt(dimension);
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158 | } |
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159 | |||
160 | return min.getCoordinateAt(dimension) - max.getCoordinateAt(dimension);
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161 | } |
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162 | |||
163 | /**
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164 | * A coordinate position consisting of all the minimal ordinates for each
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165 | * dimension for all points within the Envelope.
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166 | *
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167 | * @return
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168 | */
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169 | public Point getLowerCorner() { |
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170 | return min;
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171 | } |
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172 | |||
173 | /**
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174 | * Returns the maximal ordinate along the specified dimension.
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175 | *
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176 | * @param dimension
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177 | *
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178 | * @return
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179 | */
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180 | public double getMaximum(int dimension) { |
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181 | if (isEmpty){
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182 | throw new EnvelopeNotInitializedException(); |
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183 | } |
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184 | return max.getCoordinateAt(dimension);
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185 | } |
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186 | |||
187 | /**
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188 | * Returns the minimal ordinate along the specified dimension.
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189 | *
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190 | * @param dimension
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191 | *
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192 | * @return
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193 | */
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194 | public double getMinimum(int dimension) { |
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195 | if (isEmpty){
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196 | throw new EnvelopeNotInitializedException(); |
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197 | } |
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198 | return min.getCoordinateAt(dimension);
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199 | } |
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200 | |||
201 | /**
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202 | * A coordinate position consisting of all the maximal ordinates for each
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203 | * dimension for all points within the Envelope.
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204 | *
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205 | * @return
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206 | */
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207 | public Point getUpperCorner() { |
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208 | return max;
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209 | } |
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210 | |||
211 | |||
212 | |||
213 | public Geometry getGeometry() {
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214 | if (isEmpty){
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215 | throw new EnvelopeNotInitializedException(); |
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216 | } |
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217 | try {
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218 | 44040 | jjdelcerro | // point?
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219 | if (this.min.getX() == this.max.getX() && this.min.getY() == this.max.getY()) { |
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220 | Point point = this.min.clone(); |
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221 | point.setProjection(projection); |
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222 | return point;
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223 | } |
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224 | // vertical or horizontal line?
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225 | if (this.min.getX() == this.max.getX() || |
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226 | this.min.getY() == this.max.getY()) { |
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227 | Line line = manager.createLine(SUBTYPES.GEOM2D);
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228 | line.addVertex(min.clone()); |
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229 | line.addVertex(max.clone()); |
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230 | line.setProjection(projection); |
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231 | return line;
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232 | } |
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233 | Polygon polygon = manager.createPolygon(SUBTYPES.GEOM2D);
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234 | polygon.addVertex(min.clone()); |
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235 | polygon.addVertex(manager.createPoint(getMaximum(0),getMinimum(1), SUBTYPES.GEOM2D)); |
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236 | polygon.addVertex(max.clone()); |
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237 | polygon.addVertex(manager.createPoint(getMinimum(0),getMaximum(1), SUBTYPES.GEOM2D)); |
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238 | polygon.addVertex(min.clone()); |
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239 | polygon.setProjection(projection); |
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240 | return polygon;
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241 | } catch (Exception e) { |
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242 | LOG.warn("Error creting the geometry from envelope", e);
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243 | 42271 | fdiaz | } |
244 | 42260 | fdiaz | return null; |
245 | } |
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246 | |||
247 | public boolean contains(Envelope envelope) { |
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248 | if (isEmpty){
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249 | return false; |
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250 | } |
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251 | if((envelope == null) || (envelope.isEmpty())) { |
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252 | return false; |
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253 | } |
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254 | for (int i = 0; i < getDimension(); i++) { |
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255 | if (getMinimum(i) > envelope.getMinimum(i)
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256 | || getMaximum(i) < envelope.getMaximum(i)) { |
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257 | return false; |
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258 | } |
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259 | } |
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260 | return true; |
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261 | } |
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262 | |||
263 | public boolean intersects(Envelope envelope) { |
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264 | if (isEmpty){
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265 | return false; |
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266 | } |
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267 | if((envelope == null) || (envelope.isEmpty())) { |
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268 | return false; |
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269 | } |
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270 | int dimension = getDimension();
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271 | for (int i = 0; i < dimension; i++) { |
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272 | if (getMinimum(i)>envelope.getMaximum(i)){
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273 | return false; |
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274 | } else if (getMaximum(i)<envelope.getMinimum(i)){ |
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275 | return false; |
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276 | } |
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277 | } |
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278 | return true; |
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279 | } |
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280 | |||
281 | public boolean equals(Object other) { |
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282 | if (!(other == null || other instanceof Envelope)) { |
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283 | return false; |
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284 | } |
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285 | Envelope otherEnv = (Envelope) other; |
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286 | if (isEmpty && otherEnv.isEmpty()){
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287 | return true; |
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288 | } |
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289 | if (otherEnv.getDimension() != this.getDimension()) { |
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290 | return false; |
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291 | } |
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292 | for (int i = 0; i < this.getDimension(); i++) { |
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293 | if (otherEnv.getMinimum(i) != this.getMinimum(i)) { |
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294 | return false; |
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295 | } |
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296 | if (otherEnv.getMaximum(i) != this.getMaximum(i)) { |
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297 | return false; |
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298 | } |
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299 | } |
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300 | return true; |
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301 | } |
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302 | |||
303 | /* (non-Javadoc)
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304 | * @see org.gvsig.fmap.geom.primitive.Envelope#setLowerCorner(org.gvsig.fmap.geom.primitive.Point)
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305 | */
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306 | public void setLowerCorner(Point lowerCorner) { |
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307 | this.min = lowerCorner;
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308 | if (max != null){ |
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309 | isEmpty = false;
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310 | } |
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311 | 44003 | jjdelcerro | this.min.setProjectionIffNull(projection);
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312 | 42464 | fdiaz | jtsGeom = null;
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313 | 42260 | fdiaz | } |
314 | |||
315 | /* (non-Javadoc)
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316 | * @see org.gvsig.fmap.geom.primitive.Envelope#setUpperCorner(org.gvsig.fmap.geom.primitive.Point)
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317 | */
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318 | public void setUpperCorner(Point upperCorner) { |
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319 | this.max = upperCorner;
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320 | if (min != null){ |
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321 | isEmpty = false;
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322 | } |
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323 | 44003 | jjdelcerro | this.max.setProjectionIffNull(projection);
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324 | 42464 | fdiaz | jtsGeom = null;
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325 | 42260 | fdiaz | } |
326 | |||
327 | public static void registerPersistent() { |
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328 | PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
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329 | if( manager.getDefinition(PERSISTENCE_DEFINITION_NAME)==null ) { |
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330 | DynStruct definition = manager.addDefinition( |
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331 | DefaultEnvelope.class, |
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332 | PERSISTENCE_DEFINITION_NAME, |
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333 | "DefaultEnvelope persistence definition",
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334 | 42271 | fdiaz | null,
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335 | 42260 | fdiaz | null
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336 | 42271 | fdiaz | ); |
337 | 42260 | fdiaz | |
338 | definition.addDynFieldObject(LOWERCORNER_FIELD).setClassOfValue(Point.class).setMandatory(true); |
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339 | definition.addDynFieldObject(UPPERCORNER_FIELD).setClassOfValue(Point.class).setMandatory(true); |
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340 | } |
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341 | } |
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342 | |||
343 | public void loadFromState(PersistentState state) |
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344 | throws PersistenceException {
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345 | 42271 | fdiaz | setLowerCorner((Point)state.get(LOWERCORNER_FIELD));
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346 | setUpperCorner((Point)state.get(UPPERCORNER_FIELD));
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347 | 42260 | fdiaz | } |
348 | |||
349 | public void saveToState(PersistentState state) throws PersistenceException { |
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350 | 42271 | fdiaz | state.set(LOWERCORNER_FIELD, min); |
351 | state.set(UPPERCORNER_FIELD, max); |
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352 | 42260 | fdiaz | } |
353 | |||
354 | public Object clone() throws CloneNotSupportedException { |
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355 | DefaultEnvelope other = (DefaultEnvelope) super.clone();
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356 | 42271 | fdiaz | if (!isEmpty){
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357 | 42260 | fdiaz | other.max = (Point) max.cloneGeometry();
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358 | other.min = (Point) min.cloneGeometry();
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359 | } |
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360 | return other;
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361 | } |
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362 | |||
363 | 44281 | jjdelcerro | @Override
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364 | 42271 | fdiaz | public boolean isEmpty() { |
365 | 42260 | fdiaz | return isEmpty;
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366 | 42271 | fdiaz | } |
367 | |||
368 | 44281 | jjdelcerro | @Override
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369 | 42260 | fdiaz | public void add(Geometry geometry) { |
370 | 44281 | jjdelcerro | if( geometry==null ) { |
371 | return;
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372 | } |
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373 | 42260 | fdiaz | this.add(geometry.getEnvelope());
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374 | } |
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375 | |||
376 | 44281 | jjdelcerro | @Override
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377 | 42260 | fdiaz | public void clear() { |
378 | isEmpty = true;
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379 | } |
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380 | 42271 | fdiaz | |
381 | 42464 | fdiaz | /* (non-Javadoc)
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382 | * @see org.gvsig.fmap.geom.primitive.Envelope#intersects(org.gvsig.fmap.geom.Geometry)
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383 | */
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384 | @Override
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385 | public boolean intersects(Geometry geometry) { |
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386 | if(geometry instanceof GeometryJTS){ |
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387 | return getJTS().intersects(((GeometryJTS)geometry).getJTS());
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388 | } |
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389 | return false; |
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390 | } |
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391 | |||
392 | |||
393 | 42772 | dmartinezizquierdo | /* (non-Javadoc)
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394 | * @see org.gvsig.fmap.geom.primitive.Envelope#centerTo(org.gvsig.fmap.geom.primitive.Point)
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395 | */
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396 | @Override
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397 | public void centerTo(Point p) { |
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398 | |||
399 | try {
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400 | Point loweCorner = manager.createPoint(p.getX() - this.getLength(DIMENSIONS.X)/2, |
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401 | p.getY() - this.getLength(DIMENSIONS.Y)/2, |
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402 | SUBTYPES.GEOM2D); |
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403 | Point upperCorner = manager.createPoint(p.getX() + this.getLength(DIMENSIONS.X)/2, |
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404 | p.getY() + this.getLength(DIMENSIONS.Y)/2, |
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405 | SUBTYPES.GEOM2D); |
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406 | |||
407 | this.setLowerCorner(loweCorner);
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408 | this.setUpperCorner(upperCorner);
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409 | } catch (CreateGeometryException e) {
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410 | LOG.error("Error creating corners to center the envelope", e);
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411 | } |
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412 | } |
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413 | |||
414 | 42464 | fdiaz | private com.vividsolutions.jts.geom.Geometry getJTS() {
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415 | if (jtsGeom == null) { |
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416 | ArrayListCoordinateSequence coordinates = new ArrayListCoordinateSequence(new ArrayList<Coordinate>()); |
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417 | coordinates.add(new com.vividsolutions.jts.geom.Coordinate(min.getX(), min.getY()));
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418 | coordinates.add(new com.vividsolutions.jts.geom.Coordinate(getMaximum(0), getMinimum(1))); |
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419 | coordinates.add(new com.vividsolutions.jts.geom.Coordinate(max.getX(), max.getY()));
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420 | coordinates.add(new com.vividsolutions.jts.geom.Coordinate(getMinimum(0), getMaximum(1))); |
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421 | coordinates.add(new com.vividsolutions.jts.geom.Coordinate(min.getX(), min.getY()));
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422 | jtsGeom = JTSUtils.createJTSPolygon(coordinates); |
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423 | } |
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424 | return jtsGeom;
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425 | } |
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426 | 44003 | jjdelcerro | |
427 | @Override
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428 | public IProjection getProjection() {
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429 | return this.projection; |
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430 | } |
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431 | |||
432 | @Override
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433 | public void setProjectionIffNull(IProjection projection) { |
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434 | if (this.projection == null) { |
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435 | this.projection = projection;
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436 | } |
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437 | } |
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438 | |||
439 | @Override
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440 | public void setProjection(IProjection projection) { |
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441 | this.projection = projection;
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442 | } |
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443 | 45941 | jjdelcerro | |
444 | @Override
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445 | public boolean isCollapsed() { |
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446 | switch(this.getDimension()) { |
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447 | case 3: |
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448 | return this.isCollapsed(Geometry.SUBTYPES.GEOM3D); |
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449 | default:
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450 | case 2: |
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451 | return this.isCollapsed(Geometry.SUBTYPES.GEOM2D); |
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452 | } |
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453 | } |
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454 | 44003 | jjdelcerro | |
455 | 45941 | jjdelcerro | @Override
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456 | public boolean isCollapsed(int subtype) { |
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457 | if( this.isEmpty ) { |
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458 | return true; |
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459 | } |
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460 | switch(subtype) {
|
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461 | case Geometry.SUBTYPES.GEOM3DM:
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462 | int m = this.getDimension()-1; |
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463 | if( this.getLength(m)!=0 ) { |
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464 | return false; |
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465 | } |
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466 | case Geometry.SUBTYPES.GEOM2DM:
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467 | case Geometry.SUBTYPES.GEOM3D:
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468 | if( this.getLength(DIMENSIONS.Z)!=0 ) { |
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469 | return false; |
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470 | } |
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471 | default:
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472 | case Geometry.SUBTYPES.GEOM2D:
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473 | if( this.getLength(DIMENSIONS.X)!=0 ) { |
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474 | return false; |
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475 | } |
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476 | if( this.getLength(DIMENSIONS.Y)!=0 ) { |
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477 | return false; |
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478 | } |
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479 | return true; |
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480 | } |
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481 | } |
||
482 | |||
483 | 42260 | fdiaz | } |