svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / ViewPort.java @ 28076
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1 | 21200 | vcaballero | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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2 | *
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3 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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18 | *
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19 | * For more information, contact:
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20 | *
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21 | * Generalitat Valenciana
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22 | * Conselleria d'Infraestructures i Transport
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23 | * Av. Blasco Ib??ez, 50
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24 | * 46010 VALENCIA
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25 | * SPAIN
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26 | *
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27 | * +34 963862235
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28 | * gvsig@gva.es
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29 | * www.gvsig.gva.es
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30 | *
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31 | * or
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32 | *
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33 | * IVER T.I. S.A
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34 | * Salamanca 50
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35 | * 46005 Valencia
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36 | * Spain
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37 | *
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38 | * +34 963163400
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39 | * dac@iver.es
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40 | */
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41 | package org.gvsig.fmap.mapcontext; |
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42 | |||
43 | import java.awt.Color; |
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44 | import java.awt.Dimension; |
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45 | import java.awt.Point; |
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46 | 26225 | jmvivo | import java.awt.Toolkit; |
47 | 21200 | vcaballero | import java.awt.geom.AffineTransform; |
48 | import java.awt.geom.NoninvertibleTransformException; |
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49 | import java.awt.geom.Point2D; |
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50 | import java.awt.geom.Rectangle2D; |
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51 | import java.util.ArrayList; |
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52 | |||
53 | import org.cresques.cts.GeoCalc; |
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54 | import org.cresques.cts.IProjection; |
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55 | 27514 | cmartinez | import org.cresques.cts.UTM; |
56 | 21200 | vcaballero | import org.gvsig.fmap.crs.CRSFactory; |
57 | 27414 | jpiera | import org.gvsig.fmap.geom.GeometryLocator; |
58 | import org.gvsig.fmap.geom.GeometryManager; |
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59 | import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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60 | import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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61 | 21426 | vcaballero | import org.gvsig.fmap.geom.primitive.Envelope; |
62 | 27019 | jpiera | import org.gvsig.fmap.geom.util.UtilFunctions; |
63 | 21200 | vcaballero | import org.gvsig.fmap.mapcontext.events.ColorEvent; |
64 | import org.gvsig.fmap.mapcontext.events.ExtentEvent; |
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65 | import org.gvsig.fmap.mapcontext.events.ProjectionEvent; |
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66 | import org.gvsig.fmap.mapcontext.events.listeners.ViewPortListener; |
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67 | 27414 | jpiera | import org.slf4j.Logger; |
68 | import org.slf4j.LoggerFactory; |
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69 | 21200 | vcaballero | |
70 | import com.iver.utiles.StringUtilities; |
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71 | import com.iver.utiles.XMLEntity; |
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72 | |||
73 | |||
74 | /**
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75 | * <p><code>ViewPort</code> class represents the logic needed to transform a rectangular area of a map
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76 | * to the available area in screen to display it.</p>
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77 | *
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78 | * <p>Includes an affine transformation, between the rectangular area selected of the external map, in its own
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79 | * <i>map coordinates</i>, to the rectangular area available of a view in <i>screen coordinates</i>.</p>
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80 | *
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81 | * <p>Elements:
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82 | * <ul>
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83 | * <li><i>extent</i>: the area selected of the map, in <i>map coordinates</i>.
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84 | * <li><i>imageSize</i>: width and height in pixels (<i>screen coordinates</i>) of the area available
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85 | * in screen to display the area selected of the map.
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86 | * <li><i>adjustedExtent</i>: the area selected must be an scale of <i>imageSize</i>.<br>This implies adapt the
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87 | * extent, preserving and centering it, and adding around the needed area to fill all the image size. That
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88 | * added area will be extracted from the original map, wherever exists, and filled with the background color
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89 | * wherever not.
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90 | * <li><i>scale</i>: the scale between the adjusted extent and the image size.
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91 | * <li><i>backColor</i>: the default background color in the view, if there is no map.
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92 | * <li><i>trans</i>: the affine transformation.
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93 | * <li><i>proj</i>: map projection used in this view.
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94 | * <li><i>distanceUnits</i>: distance measurement units, of data in screen.
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95 | * <li><i>mapUnits</i>: measurement units, of data in map.
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96 | * <li><i>extents</i>: an {@link ExtentHistory ExtentHistory} with the last previous extents.
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97 | * <li><i>offset</i>: position in pixels of the available rectangular area, where start drawing the map.
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98 | * <li><i>dist1pixel</i>: the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the
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99 | * current extent.
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100 | * <li><i>dist3pixel</i>: the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the
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101 | * current extent.
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102 | * <li><i>listeners</i>: list with the {@link ViewPortListener ViewPortListener} registered.
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103 | * </ul>
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104 | * </p>
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105 | *
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106 | * @author Vicente Caballero Navarro
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107 | */
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108 | public class ViewPort { |
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109 | // /**
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110 | // * <p>Metric unit or length equal to 1000 meters.</p>
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111 | // */
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112 | // public static int KILOMETROS = 0;
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113 | //
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114 | // /**
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115 | // * <p>The base unit of length in the International System of Units that is equal to the distance
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116 | // * traveled by light in a vacuum in {frac;1;299,792,458} second or to about 39.37 inches.</p>
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117 | // */
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118 | // public static int METROS = 1;
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119 | //
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120 | // /**
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121 | // * <p>Metric unit or length equal to 0'01 meters.</p>
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122 | // */
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123 | // public static int CENTIMETRO = 2;
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124 | //
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125 | // /**
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126 | // * <p>Metric unit or length equal to 0'001 meters.</p>
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127 | // */
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128 | // public static int MILIMETRO = 3;
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129 | //
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130 | // /**
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131 | // * <p>The international statute mile by international agreement. It is defined to be precisely
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132 | // * 1,760 international yards (by definition, 0.9144 m each) and is therefore exactly 1,609.344
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133 | // * metres (1.609344 km).</p>
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134 | // */
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135 | // public static int MILLAS = 4;
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136 | //
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137 | // /**
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138 | // * <p>Unit of length equal in the United States to 0.9144 meter.</p>
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139 | // */
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140 | // public static int YARDAS = 5;
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141 | //
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142 | // /**
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143 | // * <p>Any of various units of length based on the length of the human foot; especially :
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144 | // * a unit equal to 1/3 yard and comprising 12 inches.</p>
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145 | // */
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146 | // public static int PIES = 6;
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147 | //
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148 | // /**
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149 | // * <p>Unit of length equal to 1/36 yard.</p>
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150 | // */
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151 | // public static int PULGADAS = 7;
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152 | //
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153 | // /**
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154 | // * <p>Grades according the current projection.</p>
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155 | // */
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156 | // public static int GRADOS = 8;
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157 | 27414 | jpiera | private static final GeometryManager geomManager = GeometryLocator.getGeometryManager(); |
158 | private static final Logger logger = LoggerFactory.getLogger(GeometryManager.class); |
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159 | |||
160 | 21200 | vcaballero | /**
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161 | * <p>Screen resolution in <i>dots-per-inch</i>. Useful to calculate the geographic scale of the view.</p>
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162 | *
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163 | * @see Toolkit#getScreenResolution()
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164 | * @see #getScale()
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165 | */
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166 | private static int dpi = java.awt.Toolkit.getDefaultToolkit() |
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167 | .getScreenResolution(); |
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168 | |||
169 | /**
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170 | * <p>Area selected by user using some tool.</p>
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171 | *
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172 | * <p>When the zoom changes (for instance when using the zoom in or zoom out tools,
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173 | * but also zooming to a selected feature or shape) the extent that covers that
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174 | * area is the value returned by this method. It is not the actual area shown
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175 | * in the view because it does not care about the aspect ratio of the available
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176 | * area. However, any part of the real world contained in this extent is shown
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177 | * in the view.
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178 | * </p>
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179 | * <p>
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180 | * Probably this is not what you are looking for. If you are looking for
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181 | * the complete extent currently shown, you must use {@linkplain #getAdjustedExtent()} method
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182 | * which returns the extent that contains this one but regarding the current
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183 | * view's aspect ratio.
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184 | * </p>
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185 | *
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186 | * @see #getExtent()
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187 | 21426 | vcaballero | * @see #setEnvelope(Envelope)
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188 | 21200 | vcaballero | */
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189 | protected Rectangle2D extent; |
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190 | |||
191 | /**
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192 | * <p>Location and dimensions of the extent adjusted to the image size.</p>
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193 | *
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194 | * @see #getAdjustedExtent()
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195 | */
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196 | protected Rectangle2D adjustedExtent; |
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197 | |||
198 | /**
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199 | 26225 | jmvivo | * Draw version of the context. It's used for know when de componend has
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200 | * changed any visualization property
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201 | *
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202 | * @see getDrawVersion
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203 | * @see updateDrawVersion
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204 | */
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205 | private long drawVersion= 0L; |
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206 | |||
207 | /**
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208 | 21200 | vcaballero | * <p>History with the last extents of the view.</p>
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209 | *
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210 | * @see #setPreviousExtent()
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211 | * @see #getExtents()
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212 | */
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213 | protected ExtentHistory extents = new ExtentHistory(); |
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214 | |||
215 | /**
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216 | * <p>Size in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
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217 | * <p>Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
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218 | *
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219 | * <ul>
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220 | * <li>The new {@link #scale scale} .
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221 | * <li>The new {@link #adjustedExtent adjustableExtent} .
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222 | * <li>The new {@link #trans trans} .
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223 | * <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
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224 | * <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
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225 | * </ul>
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226 | * </p>
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227 | *
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228 | * @see #getImageSize()
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229 | * @see #getImageHeight()
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230 | * @see #getImageWidth()
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231 | * @see #setImageSize(Dimension)
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232 | */
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233 | private Dimension imageSize; |
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234 | |||
235 | /**
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236 | * <p>the affine transformation between the {@link #extent extent} in <i>map 2D coordinates</i> to
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237 | * the image area in the screen, in <i>screen 2D coordinates</i> (pixels).</p>
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238 | *
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239 | * @see AffineTransform
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240 | *
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241 | * @see #getAffineTransform()
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242 | * @see #setAffineTransform(AffineTransform)
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243 | * @see #calculateAffineTransform()
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244 | */
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245 | private AffineTransform trans = new AffineTransform(); |
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246 | |||
247 | /**
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248 | * <p>Measurement unit used for measuring distances and displaying information.</p>
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249 | *
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250 | * @see #getDistanceUnits()
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251 | * @see #setDistanceUnits(int)
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252 | */
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253 | private int distanceUnits = 1; |
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254 | /**
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255 | * <p>Measurement unit used for measuring areas and displaying information.</p>
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256 | *
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257 | * @see #getDistanceArea()
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258 | * @see #setDistanceArea(int)
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259 | */
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260 | private int distanceArea = 1; |
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261 | /**
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262 | * <p>Measurement unit used by this view port for the map.</p>
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263 | *
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264 | * @see #getMapUnits()
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265 | * @see #setMapUnits(int)
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266 | */
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267 | private int mapUnits = 1; |
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268 | |||
269 | /**
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270 | * <p>Array with the {@link ViewPortListener ViewPortListener}s registered to this view port.</p>
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271 | *
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272 | * @see #addViewPortListener(ViewPortListener)
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273 | * @see #removeViewPortListener(ViewPortListener)
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274 | */
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275 | private ArrayList listeners = new ArrayList(); |
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276 | |||
277 | /**
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278 | * <p>The offset is the position where start drawing the map.</p>
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279 | * <p>The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s <i>View</i> is
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280 | * always (0, 0) because the drawing area fits with the full window area. But in
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281 | * a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s <i>Layout</i> it's up to the place where
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282 | * the <code>FFrameView</code> is located.</p>
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283 | *
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284 | * @see #getOffset()
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285 | * @see #setOffset(Point2D)
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286 | */
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287 | private Point2D offset = new Point2D.Double(0, 0); |
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288 | |||
289 | /**
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290 | * <p>Clipping area.</p>
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291 | */
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292 | private Rectangle2D clip; |
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293 | |||
294 | /**
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295 | * <p>Background color of this view.</p>
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296 | *
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297 | * @see #getBackColor()
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298 | * @see #setBackColor(Color)
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299 | */
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300 | private Color backColor = null; //Color.WHITE; |
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301 | |||
302 | /**
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303 | * <p>Information about the map projection used in this view.</p>
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304 | *
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305 | * @see #getProjection()
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306 | * @see #setProjection(IProjection)
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307 | */
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308 | private IProjection proj;
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309 | |||
310 | /**
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311 | * <p>Represents the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</p>
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312 | *
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313 | * @see #getDist1pixel()
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314 | * @see #setDist1pixel(double)
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315 | */
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316 | private double dist1pixel; |
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317 | |||
318 | /**
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319 | * <p>Represents the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</p>
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320 | *
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321 | * @see #getDist3pixel()
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322 | * @see #setDist3pixel(double)
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323 | */
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324 | private double dist3pixel; |
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325 | |||
326 | /**
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327 | * <p>Ratio between the size of <code>imageSize</code> and <code>extent</code>:<br> <i><pre>min{(imageSize.getHeight()/extent.getHeight(), imageSize.getWidth()/extent.getWidth())}</pre></i></p>
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328 | */
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329 | private double scale; |
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330 | |||
331 | /**
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332 | * <p>Clipping area.</p>
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333 | *
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334 | * @see #setClipRect(Rectangle2D)
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335 | */
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336 | private Rectangle2D cliprect; |
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337 | |||
338 | /**
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339 | * <p>Enables or disables the <i>"adjustable extent"</i> mode.</p>
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340 | *
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341 | * <p>
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342 | * When calculates the affine transform, if
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343 | * <ul>
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344 | * <li><i>enabled</i>: the new <code>adjustedExtent</code> will have the (X, Y) coordinates of the <code>extent</code> and
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345 | * an area that will be an scale of the image size. That area will have different
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346 | * height or width (not both) of the extent according the least ratio (height or width) in <pre>image.size/extent.size"</pre>.
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347 | * <li><i>disabled</i>: the new <code>adjustedExtent</code> will be like <code>extent</code>.
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348 | * </ul>
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349 | * </p>
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350 | *
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351 | * @see #setAdjustable(boolean)
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352 | */
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353 | private boolean adjustableExtent=true; |
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354 | |||
355 | /**
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356 | * <p>Creates a new view port with the information of the projection in <code>proj</code> argument, and
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357 | * default configuration:</p>
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358 | * <p>
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359 | * <ul>
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360 | * <li><i><code>distanceUnits</code></i> = meters
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361 | * <li><i><code>mapUnits</code></i> = meters
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362 | * <li><i><code>backColor</code></i> = <i>undefined</i>
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363 | * <li><i><code>offset</code></i> = <code>new Point2D.Double(0, 0);</code>
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364 | * </ul>
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365 | * </p>
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366 | *
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367 | * @param proj information of the projection for this view port
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368 | */
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369 | public ViewPort(IProjection proj) {
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370 | // Por defecto
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371 | this.proj = proj;
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372 | } |
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373 | |||
374 | /**
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375 | * <p>Changes the status of the <i>"adjustable extent"</i> option to enabled or disabled.</p>
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376 | *
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377 | * <p>If view port isn't adjustable, won't bear in mind the aspect ratio of the available rectangular area to
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378 | * calculate the affine transform from the original map in real coordinates. (Won't scale the image to adapt
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379 | * it to the available rectangular area).</p>
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380 | *
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381 | * @param boolean the boolean to be set
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382 | */
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383 | public void setAdjustable(boolean adjustable) { |
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384 | 26225 | jmvivo | if (adjustable == adjustableExtent){
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385 | return;
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386 | } |
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387 | 21200 | vcaballero | adjustableExtent = adjustable; |
388 | 26225 | jmvivo | this.updateDrawVersion();
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389 | 21200 | vcaballero | } |
390 | |||
391 | /**
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392 | * <p>Appends the specified {@link ViewPortListener ViewPortListener} listener if weren't.</p>
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393 | *
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394 | * @param arg0 the listener to add
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395 | *
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396 | * @return <code>true</code> if has been added successfully
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397 | *
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398 | * @see #removeViewPortListener(ViewPortListener)
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399 | */
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400 | public boolean addViewPortListener(ViewPortListener arg0) { |
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401 | 26905 | jmvivo | if (!listeners.contains(arg0)) {
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402 | 21200 | vcaballero | return listeners.add(arg0);
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403 | 26905 | jmvivo | } |
404 | 21200 | vcaballero | return false; |
405 | } |
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406 | |||
407 | /**
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408 | * <p>Removes the specified {@link ViewPortListener ViewPortListener} listener, if existed.</p>
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409 | *
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410 | * @param arg0 the listener to remove
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411 | *
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412 | * @return <code>true</code> if the contained the specified listener.
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413 | *
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414 | * @see #addViewPortListener(ViewPortListener)
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415 | */
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416 | public boolean removeViewPortListener(ViewPortListener arg0) { |
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417 | return listeners.remove(arg0);
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418 | } |
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419 | |||
420 | /**
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421 | * <p>Converts and returns the distance <code>d</code>, that is in <i>map
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422 | * coordinates</i> to <i>screen coordinates</i> using a <i>delta transform</i> with
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423 | * the transformation affine information in the {@link #trans #trans} attribute.</p>
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424 | *
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425 | * @param d distance in <i>map coordinates</i>
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426 | *
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427 | * @return distance equivalent in <i>screen coordinates</i>
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428 | *
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429 | * @see #toMapDistance(int)
|
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430 | * @see AffineTransform#deltaTransform(Point2D, Point2D)S
|
||
431 | */
|
||
432 | public int fromMapDistance(double d) { |
||
433 | Point2D.Double pWorld = new Point2D.Double(1, 1); |
||
434 | Point2D.Double pScreen = new Point2D.Double(); |
||
435 | |||
436 | try {
|
||
437 | trans.deltaTransform(pWorld, pScreen); |
||
438 | } catch (Exception e) { |
||
439 | System.err.print(e.getMessage());
|
||
440 | } |
||
441 | |||
442 | return (int) (d * pScreen.x); |
||
443 | } |
||
444 | |||
445 | /**
|
||
446 | * <p>Converts and returns the 2D point <code>(x,y)</code>, that is in <i>map
|
||
447 | * coordinates</i> to <i>screen coordinates</i> (pixels) using
|
||
448 | * the affine transformation in the {@link #trans #trans} attribute.</p>
|
||
449 | *
|
||
450 | * @param x the <code>x</code> <i>map coordinate</i> of a 2D point
|
||
451 | * @param y the <code>y</code> <i>map coordinate</i> of a 2D point
|
||
452 | *
|
||
453 | * @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
||
454 | *
|
||
455 | * @see #fromMapPoint(Point2D)
|
||
456 | * @see AffineTransform#transform(Point2D, Point2D)
|
||
457 | */
|
||
458 | public Point2D fromMapPoint(double x, double y) { |
||
459 | Point2D.Double pWorld = new Point2D.Double(x, y); |
||
460 | Point2D.Double pScreen = new Point2D.Double(); |
||
461 | |||
462 | try {
|
||
463 | trans.transform(pWorld, pScreen); |
||
464 | } catch (Exception e) { |
||
465 | System.err.print(e.getMessage());
|
||
466 | } |
||
467 | |||
468 | return pScreen;
|
||
469 | } |
||
470 | |||
471 | /**
|
||
472 | * <p>Converts and returns the 2D point argument, that is in <i>map
|
||
473 | * coordinates</i> to <i>screen coordinates</i> (pixels) using
|
||
474 | * the affine transformation in the {@link #trans #trans} attribute.</p>
|
||
475 | *
|
||
476 | * @param point the 2D point in <i>map coordinates</i>
|
||
477 | *
|
||
478 | * @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
||
479 | *
|
||
480 | * @see #toMapPoint(Point2D)
|
||
481 | * @see #fromMapPoint(double, double)
|
||
482 | */
|
||
483 | public Point2D fromMapPoint(Point2D point) { |
||
484 | return fromMapPoint(point.getX(), point.getY());
|
||
485 | } |
||
486 | |||
487 | /**
|
||
488 | * <p>Converts and returns the 2D point <code>(x,y)</code>, that is in <i>screen coordinates</i>
|
||
489 | * (pixels) to <i>map coordinates</i> using
|
||
490 | * the affine transformation in the {@link #trans #trans} attribute.</p>
|
||
491 | *
|
||
492 | * @param x the <code>x</code> <i>screen coordinate</i> of a 2D point
|
||
493 | * @param y the <code>y</code> <i>screen coordinate</i> of a 2D point
|
||
494 | *
|
||
495 | * @return 2D point equivalent in <i>map coordinates</i>
|
||
496 | *
|
||
497 | * @see #toMapPoint(Point2D)
|
||
498 | * @see #fromMapPoint(double, double)
|
||
499 | */
|
||
500 | public Point2D toMapPoint(int x, int y) { |
||
501 | Point pScreen = new Point(x, y); |
||
502 | |||
503 | return toMapPoint(pScreen);
|
||
504 | } |
||
505 | |||
506 | /**
|
||
507 | * <p>Converts and returns the {@link Rectangle2D Rectangle2D}, that is in <i>screen
|
||
508 | * coordinates</i> (pixels) to <i>map coordinates</i> using {@linkplain #toMapDistance(int)},
|
||
509 | * and {@linkplain #toMapPoint(int, int)}.</p>
|
||
510 | *
|
||
511 | * @param r the 2D rectangle in <i>screen coordinates</i> (pixels)
|
||
512 | * @return 2D rectangle equivalent in <i>map coordinates</i>
|
||
513 | *
|
||
514 | * @see #fromMapRectangle(Rectangle2D)
|
||
515 | * @see #toMapDistance(int)
|
||
516 | * @see #toMapPoint(int, int)
|
||
517 | */
|
||
518 | public Rectangle2D toMapRectangle(Rectangle2D r){ |
||
519 | Rectangle2D rect=new Rectangle2D.Double(); |
||
520 | Point2D p1=toMapPoint((int)r.getX(),(int)r.getY()); |
||
521 | Point2D p2=toMapPoint((int)r.getMaxX(),(int)r.getMaxY()); |
||
522 | rect.setFrameFromDiagonal(p1,p2); |
||
523 | return rect;
|
||
524 | } |
||
525 | |||
526 | /**
|
||
527 | * <p>Converts and returns the distance <code>d</code>, that is in <i>screen
|
||
528 | * coordinates</i> to <i>map coordinates</i> using the transformation affine information
|
||
529 | * in the {@link #trans #trans} attribute.</p>
|
||
530 | *
|
||
531 | * @param d distance in pixels
|
||
532 | *
|
||
533 | * @return distance equivalent in <i>map coordinates</i>
|
||
534 | *
|
||
535 | * @see #fromMapDistance(double)
|
||
536 | * @see AffineTransform
|
||
537 | */
|
||
538 | public double toMapDistance(int d) { |
||
539 | double dist = d / trans.getScaleX();
|
||
540 | |||
541 | return dist;
|
||
542 | } |
||
543 | |||
544 | /**
|
||
545 | * <p>Converts and returns the 2D point argument, that is in <i>screen coordinates</i>
|
||
546 | * (pixels) to <i>map coordinates</i> using the
|
||
547 | * inverse affine transformation of the {@link #trans #trans} attribute.</p>
|
||
548 | *
|
||
549 | * @param pScreen the 2D point in <i>screen coordinates</i> (pixels)
|
||
550 | *
|
||
551 | * @return 2D point equivalent in <i>map coordinates</i>
|
||
552 | *
|
||
553 | * @see #toMapPoint(int, int)
|
||
554 | * @see AffineTransform#createInverse()
|
||
555 | * @see AffineTransform#transform(Point2D, Point2D)
|
||
556 | */
|
||
557 | public Point2D toMapPoint(Point2D pScreen) { |
||
558 | Point2D.Double pWorld = new Point2D.Double(); |
||
559 | AffineTransform at;
|
||
560 | |||
561 | try {
|
||
562 | at = trans.createInverse(); |
||
563 | at.transform(pScreen, pWorld); |
||
564 | } catch (NoninvertibleTransformException e) { |
||
565 | throw new RuntimeException("Non invertible transform Exception",e); |
||
566 | } |
||
567 | |||
568 | return pWorld;
|
||
569 | } |
||
570 | |||
571 | /**
|
||
572 | * <p>Returns the real distance (in <i>world coordinates</i>) at the graphic layers of two 2D points
|
||
573 | * (in <i>map coordinates</i>) of the plane where is selected the <i>extent</i>.</p>
|
||
574 | * <p>If the projection of this view is UTM, considers the Earth curvature.</p>
|
||
575 | *
|
||
576 | * @param pt1 a 2D point in <i>map coordinates</i>
|
||
577 | * @param pt2 another 2D point in <i>map coordinates</i>
|
||
578 | *
|
||
579 | * @return the distance in meters between the two points 2D
|
||
580 | *
|
||
581 | 27514 | cmartinez | * @see GeoCalcImpl#distanceVincenty(Point2D, Point2D)
|
582 | 21200 | vcaballero | */
|
583 | public double distanceWorld(Point2D pt1, Point2D pt2) { |
||
584 | double dist = -1; |
||
585 | dist = pt1.distance(pt2); |
||
586 | |||
587 | 27514 | cmartinez | if ((proj != null) && !(proj instanceof UTM)) { |
588 | 21200 | vcaballero | dist = new GeoCalc(proj).distanceVincenty(proj.toGeo(pt1),
|
589 | proj.toGeo(pt2)); |
||
590 | return dist;
|
||
591 | } |
||
592 | return (dist*MapContext.getDistanceTrans2Meter()[getMapUnits()]);
|
||
593 | } |
||
594 | |||
595 | /**
|
||
596 | * <p>Sets as extent and adjusted extent of this view port, the previous. Recalculating
|
||
597 | * its parameters.</p>
|
||
598 | *
|
||
599 | * @see #getExtents()
|
||
600 | * @see #calculateAffineTransform()
|
||
601 | */
|
||
602 | public void setPreviousExtent() { |
||
603 | 26225 | jmvivo | this.updateDrawVersion();
|
604 | 21200 | vcaballero | extent = extents.removePrev(); |
605 | |||
606 | //Calcula la transformaci?n af?n
|
||
607 | calculateAffineTransform(); |
||
608 | |||
609 | // Lanzamos los eventos de extent cambiado
|
||
610 | callExtentChanged(getAdjustedExtent()); |
||
611 | } |
||
612 | |||
613 | /**
|
||
614 | * <p>Gets the area selected by user using some tool.</p>
|
||
615 | *
|
||
616 | * <p>When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom out</i> tools,
|
||
617 | * but also zooming to a selected feature or shape) the extent that covers that
|
||
618 | * area is the value returned by this method. It is not the actual area shown
|
||
619 | * because it doesn't care about the aspect ratio of the image size of the view. However, any
|
||
620 | * part of the real world contained in this extent is shown in the view.</p>
|
||
621 | *
|
||
622 | * <p>If you are looking for the complete extent currently shown, you must use the
|
||
623 | * {@linkplain #getAdjustedExtent()} method.</p>
|
||
624 | *
|
||
625 | * @return the current extent
|
||
626 | *
|
||
627 | 21426 | vcaballero | * @see #setEnvelope(Envelope)
|
628 | 21200 | vcaballero | * @see #getAdjustedExtent()
|
629 | * @see #setPreviousExtent()
|
||
630 | * @see #getExtents()
|
||
631 | */
|
||
632 | public Rectangle2D getExtent() { |
||
633 | return extent;
|
||
634 | } |
||
635 | |||
636 | /**
|
||
637 | * <p>Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
||
638 | * <ul>
|
||
639 | * <li>Stores the previous extent.
|
||
640 | * <li>Calculates the new extent using <code>r</code>:
|
||
641 | * <pre>extent = new Rectangle2D.Double(r.getMinX() - 0.1, r.getMinY() - 0.1, r.getWidth() + 0.2, r.getHeight() + 0.2);</pre>
|
||
642 | * <li>Executes {@linkplain #calculateAffineTransform()}: getting the new scale, adjusted extent, affine transformation between
|
||
643 | * map and screen coordinates, the real world coordinates equivalent to 1 pixel, and the real world coordinates equivalent to 3 pixels.
|
||
644 | * <li>Notifies all {@link ViewPortListener ViewPortListener} registered that the extent has changed.
|
||
645 | * </ul>
|
||
646 | * </p>
|
||
647 | *
|
||
648 | * @param r the new extent
|
||
649 | *
|
||
650 | * @see #getExtent()
|
||
651 | * @see #getExtents()
|
||
652 | * @see #calculateAffineTransform()
|
||
653 | * @see #setPreviousExtent()
|
||
654 | */
|
||
655 | 21426 | vcaballero | public void setEnvelope(Envelope r) { |
656 | 26225 | jmvivo | Rectangle2D newExtent=null; |
657 | 21200 | vcaballero | //Esto comprueba que el extent no es de anchura o altura = "0"
|
658 | //y si es as? lo redimensiona.
|
||
659 | 26905 | jmvivo | if (r!=null) { |
660 | if ((r.getMaximum(0) - r.getMinimum(0) == 0) |
||
661 | || (r.getMaximum(1) - r.getMinimum(1) == 0)) { |
||
662 | newExtent = new Rectangle2D.Double(r.getMinimum(0) - 0.1, |
||
663 | 21426 | vcaballero | r.getMinimum(1) - 0.1, r.getMaximum(0)-r.getMinimum(0) + 0.2, r.getMaximum(1)-r.getMinimum(1) + 0.2); |
664 | 26905 | jmvivo | } else {
|
665 | newExtent = new Rectangle2D.Double(r.getMinimum(0),r.getMinimum(1),Math.abs(r.getMaximum(0)-r.getMinimum(0)),Math.abs(r.getMaximum(1)-r.getMinimum(1))); |
||
666 | } |
||
667 | 21200 | vcaballero | } |
668 | |||
669 | 26225 | jmvivo | if (this.extent != null && this.extent.equals(newExtent)){ |
670 | return;
|
||
671 | } |
||
672 | if (extent != null) { |
||
673 | extents.put(extent); |
||
674 | } |
||
675 | this.updateDrawVersion();
|
||
676 | this.extent = newExtent;
|
||
677 | 26905 | jmvivo | |
678 | 21200 | vcaballero | //Calcula la transformaci?n af?n
|
679 | calculateAffineTransform(); |
||
680 | |||
681 | // Lanzamos los eventos de extent cambiado
|
||
682 | callExtentChanged(getAdjustedExtent()); |
||
683 | } |
||
684 | |||
685 | /**
|
||
686 | * <p>Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
||
687 | * <ul>
|
||
688 | * <li>Executes {@linkplain #calculateAffineTransform()}: getting the new scale, adjusted extent, affine transformation between
|
||
689 | * map and screen coordinates, the real world coordinates equivalent to 1 pixel, and the real world coordinates equivalent to 3 pixels.
|
||
690 | * <li>Notifies to all {@link ViewPortListener ViewPortListener} registered that the extent has changed.
|
||
691 | * </ul>
|
||
692 | * </p>
|
||
693 | *
|
||
694 | 21426 | vcaballero | * @see #setEnvelope(Envelope)
|
695 | 21200 | vcaballero | * @see #calculateAffineTransform()
|
696 | */
|
||
697 | public void refreshExtent() { |
||
698 | //this.scale = scale;
|
||
699 | |||
700 | //Calcula la transformaci?n af?n
|
||
701 | calculateAffineTransform(); |
||
702 | |||
703 | // Lanzamos los eventos de extent cambiado
|
||
704 | callExtentChanged(getAdjustedExtent()); |
||
705 | } |
||
706 | |||
707 | /**
|
||
708 | * <p>Calculates and returns using the current projection of this view port, the scale that
|
||
709 | * is the extent in <i>screen coordinates</i> from the image in <i>map coordinates</i>.</p>
|
||
710 | *
|
||
711 | * @return the scale <i>extent / image size</i> projected by this view port
|
||
712 | *
|
||
713 | * @deprecated since 07/09/07, use {@linkplain MapContext#getScaleView()}
|
||
714 | */
|
||
715 | public double getScale() { |
||
716 | return proj.getScale(extent.getMinX(), extent.getMaxX(),
|
||
717 | imageSize.getWidth(), dpi); |
||
718 | } |
||
719 | |||
720 | /**
|
||
721 | * <p>Affine transformation between <i>map 2D coordinates</i> to <i>screen 2D coordinates</i> (pixels),
|
||
722 | * preserving the "straightness" and "parallelism" of the lines.</p>
|
||
723 | *
|
||
724 | * @return the affine transformation
|
||
725 | *
|
||
726 | * @see #setAffineTransform(AffineTransform)
|
||
727 | * @see #calculateAffineTransform()
|
||
728 | */
|
||
729 | public AffineTransform getAffineTransform() { |
||
730 | return trans;
|
||
731 | } |
||
732 | |||
733 | /**
|
||
734 | * <p>Returns the size of the image projected.</p>
|
||
735 | *
|
||
736 | * @return the image size
|
||
737 | *
|
||
738 | * @see #setImageSize(Dimension)
|
||
739 | * @see #getImageHeight()
|
||
740 | * @see #getImageWidth()
|
||
741 | */
|
||
742 | public Dimension getImageSize() { |
||
743 | return imageSize;
|
||
744 | } |
||
745 | |||
746 | /**
|
||
747 | * <p>Sets the size of the image projected, recalculating the parameters of this view port.</p>
|
||
748 | *
|
||
749 | * @param imageSize the image size
|
||
750 | *
|
||
751 | * @see #getImageSize()
|
||
752 | * @see #calculateAffineTransform()
|
||
753 | */
|
||
754 | public void setImageSize(Dimension imageSize) { |
||
755 | 26225 | jmvivo | |
756 | if (this.imageSize == null || (!this.imageSize.equals(imageSize))){ |
||
757 | this.updateDrawVersion();
|
||
758 | this.imageSize = imageSize;
|
||
759 | calculateAffineTransform(); |
||
760 | } |
||
761 | 21200 | vcaballero | } |
762 | |||
763 | /**
|
||
764 | * <p>Notifies to all view port listeners registered, that the adjusted extent of this view port
|
||
765 | * has changed.</p>
|
||
766 | *
|
||
767 | * @param newRect the new adjusted extend
|
||
768 | *
|
||
769 | * @see #refreshExtent()
|
||
770 | 21426 | vcaballero | * @see #setEnvelope(Envelope)
|
771 | 21200 | vcaballero | * @see #setPreviousExtent()
|
772 | * @see ExtentEvent
|
||
773 | * @see ViewPortListener
|
||
774 | */
|
||
775 | 21531 | vcaballero | protected void callExtentChanged(Envelope newRect) { |
776 | 21200 | vcaballero | ExtentEvent ev = ExtentEvent.createExtentEvent(newRect); |
777 | |||
778 | for (int i = 0; i < listeners.size(); i++) { |
||
779 | ViewPortListener listener = (ViewPortListener) listeners.get(i); |
||
780 | listener.extentChanged(ev); |
||
781 | } |
||
782 | } |
||
783 | |||
784 | /**
|
||
785 | * <p>Notifies to all view port listeners registered, that the background color of this view port
|
||
786 | * has changed.</p>
|
||
787 | *
|
||
788 | * @param c the new background color
|
||
789 | *
|
||
790 | * @see #setBackColor(Color)
|
||
791 | * @see ColorEvent
|
||
792 | * @see ViewPortListener
|
||
793 | */
|
||
794 | private void callColorChanged(Color c) { |
||
795 | ColorEvent ce = ColorEvent.createColorEvent(c); |
||
796 | |||
797 | for (int i = 0; i < listeners.size(); i++) { |
||
798 | ViewPortListener listener = (ViewPortListener) listeners.get(i); |
||
799 | listener.backColorChanged(ce); |
||
800 | } |
||
801 | } |
||
802 | |||
803 | /**
|
||
804 | * <p>Notifies to all view port listeners registered, that the projection of this view port
|
||
805 | * has changed.</p>
|
||
806 | *
|
||
807 | * @param projection the new projection
|
||
808 | *
|
||
809 | * @see #setProjection(IProjection)
|
||
810 | * @see ProjectionEvent
|
||
811 | * @see ViewPortListener
|
||
812 | */
|
||
813 | private void callProjectionChanged(IProjection projection) { |
||
814 | ProjectionEvent ev = ProjectionEvent.createProjectionEvent(projection); |
||
815 | |||
816 | for (int i = 0; i < listeners.size(); i++) { |
||
817 | ViewPortListener listener = (ViewPortListener) listeners.get(i); |
||
818 | listener.projectionChanged(ev); |
||
819 | } |
||
820 | } |
||
821 | |||
822 | /**
|
||
823 | * <p>Calculates the affine transformation between the {@link #extent extent} in <i>map 2D coordinates</i> to
|
||
824 | * the image area in the screen, in <i>screen 2D coordinates</i> (pixels).</p>
|
||
825 | *
|
||
826 | * <p>This process recalculates some parameters of this view port:<br>
|
||
827 | *
|
||
828 | * <ul>
|
||
829 | * <li>The new {@link #scale scale} .
|
||
830 | * <li>The new {@link #adjustedExtent adjustedExtent} .
|
||
831 | * <li>The new {@link #trans trans} .
|
||
832 | * <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
||
833 | * <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
||
834 | * </ul>
|
||
835 | * </p>
|
||
836 | *
|
||
837 | * @see #getAffineTransform()
|
||
838 | * @see #setAffineTransform(AffineTransform)
|
||
839 | * @see #refreshExtent()
|
||
840 | 21426 | vcaballero | * @see #setEnvelope(Envelope)
|
841 | 21200 | vcaballero | * @see #setImageSize(Dimension)
|
842 | * @see #setPreviousExtent()
|
||
843 | * @see #createFromXML(XMLEntity)
|
||
844 | * @see AffineTransform
|
||
845 | */
|
||
846 | private void calculateAffineTransform() { |
||
847 | if ((imageSize == null) || (extent == null) || |
||
848 | (imageSize.getWidth() <= 0) || (imageSize.getHeight() <= 0)) { |
||
849 | return;
|
||
850 | } |
||
851 | |||
852 | AffineTransform escalado = new AffineTransform(); |
||
853 | AffineTransform translacion = new AffineTransform(); |
||
854 | |||
855 | double escalaX;
|
||
856 | double escalaY;
|
||
857 | |||
858 | escalaX = imageSize.getWidth() / extent.getWidth(); |
||
859 | escalaY = imageSize.getHeight() / extent.getHeight(); |
||
860 | |||
861 | double xCenter = extent.getCenterX();
|
||
862 | double yCenter = extent.getCenterY();
|
||
863 | double newHeight;
|
||
864 | double newWidth;
|
||
865 | |||
866 | adjustedExtent = new Rectangle2D.Double(); |
||
867 | |||
868 | if (adjustableExtent) {
|
||
869 | if (escalaX < escalaY) {
|
||
870 | scale = escalaX; |
||
871 | newHeight = imageSize.getHeight() / scale; |
||
872 | adjustedExtent.setRect(xCenter - (extent.getWidth() / 2.0),
|
||
873 | yCenter - (newHeight / 2.0), extent.getWidth(), newHeight);
|
||
874 | } else {
|
||
875 | scale = escalaY; |
||
876 | newWidth = imageSize.getWidth() / scale; |
||
877 | adjustedExtent.setRect(xCenter - (newWidth / 2.0),
|
||
878 | yCenter - (extent.getHeight() / 2.0), newWidth,
|
||
879 | extent.getHeight()); |
||
880 | } |
||
881 | escalado.setToScale(scale, -scale); |
||
882 | } |
||
883 | else { // adjusted is same as extent |
||
884 | scale = escalaX; |
||
885 | adjustedExtent.setFrame(extent); |
||
886 | escalado.setToScale(escalaX, -escalaY); |
||
887 | } |
||
888 | 21531 | vcaballero | Envelope env=getAdjustedExtent(); |
889 | 26905 | jmvivo | if (env == null) { |
890 | 21886 | vcaballero | return;
|
891 | 26905 | jmvivo | } |
892 | 21531 | vcaballero | translacion.setToTranslation(-env.getMinimum(0),
|
893 | 21886 | vcaballero | -env.getMinimum(1) - getAdjustedExtent().getLength(1)); |
894 | 21200 | vcaballero | |
895 | AffineTransform offsetTrans = new AffineTransform(); |
||
896 | offsetTrans.setToTranslation(offset.getX(), offset.getY()); |
||
897 | |||
898 | trans.setToIdentity(); |
||
899 | trans.concatenate(offsetTrans); |
||
900 | trans.concatenate(escalado); |
||
901 | |||
902 | trans.concatenate(translacion); |
||
903 | |||
904 | // Calculamos las distancias de 1 pixel y 3 pixel con esa transformaci?n
|
||
905 | // de coordenadas, de forma que est?n precalculadas para cuando las necesitemos
|
||
906 | AffineTransform at;
|
||
907 | |||
908 | try {
|
||
909 | at = trans.createInverse(); |
||
910 | |||
911 | java.awt.Point pPixel = new java.awt.Point(1, 1); |
||
912 | Point2D.Float pProv = new Point2D.Float(); |
||
913 | at.deltaTransform(pPixel, pProv); |
||
914 | |||
915 | dist1pixel = pProv.x; |
||
916 | dist3pixel = 3 * pProv.x;
|
||
917 | } catch (NoninvertibleTransformException e) { |
||
918 | System.err.println("transformada afin = " + trans.toString()); |
||
919 | System.err.println("extent = " + extent.toString() + |
||
920 | " imageSize= " + imageSize.toString());
|
||
921 | throw new RuntimeException("Non invertible transform Exception",e); |
||
922 | } |
||
923 | } |
||
924 | |||
925 | /**
|
||
926 | * <p>Sets the offset.</p>
|
||
927 | * <p>The offset is the position where start drawing the map.</p>
|
||
928 | *
|
||
929 | * @param p 2D point that represents the offset in pixels
|
||
930 | *
|
||
931 | * @see #getOffset()
|
||
932 | */
|
||
933 | public void setOffset(Point2D p) { |
||
934 | 26225 | jmvivo | if (!offset.equals(p)){
|
935 | this.updateDrawVersion();
|
||
936 | 26905 | jmvivo | offset = p; |
937 | 26225 | jmvivo | } |
938 | 21200 | vcaballero | } |
939 | |||
940 | /**
|
||
941 | * <p>Gets the offset.</p>
|
||
942 | * <p>The offset is the position where start drawing the map.</p>
|
||
943 | *
|
||
944 | * @return 2D point that represents the offset in pixels
|
||
945 | *
|
||
946 | * @see #setOffset(Point2D)
|
||
947 | */
|
||
948 | public Point2D getOffset() { |
||
949 | return offset;
|
||
950 | } |
||
951 | |||
952 | /**
|
||
953 | * <p>Sets the background color.</p>
|
||
954 | *
|
||
955 | * @param c the new background color
|
||
956 | *
|
||
957 | * @see #getBackColor()
|
||
958 | */
|
||
959 | public void setBackColor(Color c) { |
||
960 | 26225 | jmvivo | if (!c.equals(this.backColor)){ |
961 | this.updateDrawVersion();
|
||
962 | backColor = c; |
||
963 | callColorChanged(backColor); |
||
964 | } |
||
965 | 21200 | vcaballero | } |
966 | |||
967 | /**
|
||
968 | * <p>Gets the background color.</p>
|
||
969 | *
|
||
970 | * @return the background color of the view
|
||
971 | *
|
||
972 | * @see #setBackColor(Color)
|
||
973 | */
|
||
974 | public Color getBackColor() { |
||
975 | return backColor;
|
||
976 | } |
||
977 | |||
978 | /**
|
||
979 | * <p>Returns the extent currently covered by the view adjusted (scaled) to the image size aspect.</p>
|
||
980 | *
|
||
981 | * @return extent of the view adjusted to the image size aspect
|
||
982 | *
|
||
983 | * @see #setAdjustable(boolean)
|
||
984 | */
|
||
985 | 21531 | vcaballero | public Envelope getAdjustedExtent() {
|
986 | 21200 | vcaballero | if (cliprect!=null){ |
987 | 21531 | vcaballero | Rectangle2D r= adjustedExtent.createIntersection(cliprect);
|
988 | 27414 | jpiera | try {
|
989 | return geomManager.createEnvelope(r.getX(),r.getY(),r.getMaxX(),r.getMaxY(), SUBTYPES.GEOM2D);
|
||
990 | } catch (CreateEnvelopeException e) {
|
||
991 | e.printStackTrace(); |
||
992 | logger.error("Error adjusting the extent", e);
|
||
993 | } |
||
994 | 21200 | vcaballero | } |
995 | 26905 | jmvivo | if (adjustedExtent!=null) { |
996 | 27414 | jpiera | try {
|
997 | return geomManager.createEnvelope(adjustedExtent.getX(),adjustedExtent.getY(),adjustedExtent.getMaxX(),adjustedExtent.getMaxY(), SUBTYPES.GEOM2D);
|
||
998 | } catch (CreateEnvelopeException e) {
|
||
999 | e.printStackTrace(); |
||
1000 | logger.error("Error adjusting the extent", e);
|
||
1001 | } |
||
1002 | 26905 | jmvivo | } |
1003 | 21742 | vcaballero | return null; |
1004 | 21200 | vcaballero | } |
1005 | |||
1006 | /**
|
||
1007 | * <p>Returns the measurement unit of this view port used for measuring distances and displaying information.</p>
|
||
1008 | *
|
||
1009 | * @return the measurement unit of this view used for measuring distances and displaying information
|
||
1010 | *
|
||
1011 | * @see #setDistanceUnits(int)
|
||
1012 | */
|
||
1013 | public int getDistanceUnits() { |
||
1014 | return distanceUnits;
|
||
1015 | } |
||
1016 | /**
|
||
1017 | * <p>Returns the measurement unit of this view port used for measuring areas and displaying information.</p>
|
||
1018 | *
|
||
1019 | * @return the measurement unit of this view used for measuring areas and displaying information
|
||
1020 | *
|
||
1021 | * @see #setDistanceUnits(int)
|
||
1022 | */
|
||
1023 | public int getDistanceArea() { |
||
1024 | return distanceArea;
|
||
1025 | } |
||
1026 | /**
|
||
1027 | * <p>Sets the measurement unit of this view port used for measuring distances and displaying information.</p>
|
||
1028 | *
|
||
1029 | * @param distanceUnits the measurement unit of this view used for measuring distances and displaying information
|
||
1030 | *
|
||
1031 | * @see #getDistanceUnits()
|
||
1032 | */
|
||
1033 | public void setDistanceUnits(int distanceUnits) { |
||
1034 | this.distanceUnits = distanceUnits;
|
||
1035 | } |
||
1036 | /**
|
||
1037 | * <p>Sets the measurement unit of this view port used for measuring areas and displaying information.</p>
|
||
1038 | *
|
||
1039 | * @param distanceUnits the measurement unit of this view used for measuring areas and displaying information
|
||
1040 | *
|
||
1041 | * @see #getDistanceUnits()
|
||
1042 | */
|
||
1043 | public void setDistanceArea(int distanceArea) { |
||
1044 | this.distanceArea = distanceArea;
|
||
1045 | } |
||
1046 | /**
|
||
1047 | * <p>Gets the measurement unit used by this view port for the map.</p>
|
||
1048 | *
|
||
1049 | * @return Returns the current map measure unit
|
||
1050 | *
|
||
1051 | * @see #setMapUnits(int)
|
||
1052 | */
|
||
1053 | public int getMapUnits() { |
||
1054 | return mapUnits;
|
||
1055 | } |
||
1056 | |||
1057 | /**
|
||
1058 | * <p>Sets the measurement unit used by this view port for the map.</p>
|
||
1059 | *
|
||
1060 | * @param mapUnits the new map measure unit
|
||
1061 | *
|
||
1062 | * @see #getMapUnits()
|
||
1063 | */
|
||
1064 | public void setMapUnits(int mapUnits) { |
||
1065 | this.mapUnits = mapUnits;
|
||
1066 | } |
||
1067 | |||
1068 | /**
|
||
1069 | * <p>Gets the width in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
|
||
1070 | * <p>Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
||
1071 | *
|
||
1072 | * <ul>
|
||
1073 | * <li>The new {@link #scale scale} .
|
||
1074 | * <li>The new {@link #adjustedExtent adjustableExtent} .
|
||
1075 | * <li>The new {@link #trans trans} .
|
||
1076 | * <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
||
1077 | * <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
||
1078 | * </ul>
|
||
1079 | * </p>
|
||
1080 | *
|
||
1081 | * @see #getImageHeight()
|
||
1082 | * @see #getImageSize()
|
||
1083 | * @see #setImageSize(Dimension)
|
||
1084 | */
|
||
1085 | public int getImageWidth() { |
||
1086 | return imageSize.width;
|
||
1087 | } |
||
1088 | |||
1089 | /**
|
||
1090 | * <p>Gets the height in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
|
||
1091 | * <p>Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
||
1092 | *
|
||
1093 | * <ul>
|
||
1094 | * <li>The new {@link #scale scale} .
|
||
1095 | * <li>The new {@link #adjustedExtent adjustableExtent} .
|
||
1096 | * <li>The new {@link #trans trans} .
|
||
1097 | * <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
||
1098 | * <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
||
1099 | * </ul>
|
||
1100 | * </p>
|
||
1101 | *
|
||
1102 | * @see #getImageWidth()
|
||
1103 | * @see #getImageSize()
|
||
1104 | * @see #setImageSize(Dimension)
|
||
1105 | */
|
||
1106 | public int getImageHeight() { |
||
1107 | return imageSize.height;
|
||
1108 | } |
||
1109 | |||
1110 | /**
|
||
1111 | * <p>Gets the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</p>
|
||
1112 | *
|
||
1113 | * @return the distance
|
||
1114 | *
|
||
1115 | * @see #setDist1pixel(double)
|
||
1116 | */
|
||
1117 | public double getDist1pixel() { |
||
1118 | return dist1pixel;
|
||
1119 | } |
||
1120 | |||
1121 | /**
|
||
1122 | * <p>Sets the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</p>
|
||
1123 | *
|
||
1124 | * @param dist1pixel the distance
|
||
1125 | *
|
||
1126 | * @see #getDist1pixel()
|
||
1127 | */
|
||
1128 | public void setDist1pixel(double dist1pixel) { |
||
1129 | 26225 | jmvivo | if (dist1pixel == this.dist1pixel){ |
1130 | return;
|
||
1131 | } |
||
1132 | this.updateDrawVersion();
|
||
1133 | 21200 | vcaballero | this.dist1pixel = dist1pixel;
|
1134 | } |
||
1135 | |||
1136 | /**
|
||
1137 | * <p>Gets the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</p>
|
||
1138 | *
|
||
1139 | * @return the distance
|
||
1140 | *
|
||
1141 | * @see #setDist3pixel(double)
|
||
1142 | */
|
||
1143 | public double getDist3pixel() { |
||
1144 | return dist3pixel;
|
||
1145 | } |
||
1146 | |||
1147 | /**
|
||
1148 | * <p>Sets the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</p>
|
||
1149 | *
|
||
1150 | * @param dist3pixel the distance
|
||
1151 | *
|
||
1152 | * @see #getDist3pixel()
|
||
1153 | */
|
||
1154 | public void setDist3pixel(double dist3pixel) { |
||
1155 | 26225 | jmvivo | if (this.dist3pixel == dist3pixel){ |
1156 | return;
|
||
1157 | } |
||
1158 | this.updateDrawVersion();
|
||
1159 | 21200 | vcaballero | this.dist3pixel = dist3pixel;
|
1160 | } |
||
1161 | |||
1162 | /**
|
||
1163 | * <p>Returns the last previous extents of this view port.</p>
|
||
1164 | *
|
||
1165 | * @return the last previous extents of this view port
|
||
1166 | *
|
||
1167 | * @see #setPreviousExtent()
|
||
1168 | */
|
||
1169 | public ExtentHistory getExtents() {
|
||
1170 | return extents;
|
||
1171 | } |
||
1172 | |||
1173 | /**
|
||
1174 | * <p>Gets the projection used in this view port.</p>
|
||
1175 | *
|
||
1176 | * @return projection used in this view port
|
||
1177 | *
|
||
1178 | * @see #setProjection(IProjection)
|
||
1179 | */
|
||
1180 | public IProjection getProjection() {
|
||
1181 | return proj;
|
||
1182 | } |
||
1183 | |||
1184 | /**
|
||
1185 | * <p>Sets the projection to this view port.</p>
|
||
1186 | *
|
||
1187 | * @param proj the new projection
|
||
1188 | *
|
||
1189 | * @see #getProjection()
|
||
1190 | */
|
||
1191 | public void setProjection(IProjection proj) { |
||
1192 | if(this.proj == null || !this.proj.getAbrev().equals(proj.getAbrev())) { |
||
1193 | 26225 | jmvivo | this.updateDrawVersion();
|
1194 | 21200 | vcaballero | this.proj = proj;
|
1195 | callProjectionChanged(proj); |
||
1196 | } |
||
1197 | } |
||
1198 | |||
1199 | // -----------------------------------------------------------------------------------------------------------
|
||
1200 | // NOTA PARA DESARROLLADORES SOBRE EL M?TODO "public void setAffineTransform(AffineTransform at)"
|
||
1201 | // ==============================================================================================
|
||
1202 | // Only used for print, should be removed, redefining the {@link RasterAdapter RasterAdapter} interface,
|
||
1203 | // allowing it to receive a {@link ViewPortData ViewPortData} .
|
||
1204 | // -----------------------------------------------------------------------------------------------------------
|
||
1205 | |||
1206 | /**
|
||
1207 | * <p>Sets only the affine transform to this view port, without updating dependent attributes.</p>
|
||
1208 | * <p><b><i>This method could be problematic!</i></b></p>
|
||
1209 | *
|
||
1210 | * @param at the affine transform to set
|
||
1211 | *
|
||
1212 | * @see #getAffineTransform()
|
||
1213 | * @see #calculateAffineTransform()
|
||
1214 | */
|
||
1215 | public void setAffineTransform(AffineTransform at) |
||
1216 | { |
||
1217 | this.trans = at;
|
||
1218 | } |
||
1219 | |||
1220 | /**
|
||
1221 | * <p>Returns an XML entity that represents this view port instance:<br>
|
||
1222 | * <ul>
|
||
1223 | * <li>Properties:
|
||
1224 | * <ul>
|
||
1225 | * <li><i>className</i>: name of this class.
|
||
1226 | * <li>If defined, the adjusted extent:
|
||
1227 | * <ul>
|
||
1228 | * <li><i>adjustedExtentX</i>: X coordinate of the adjusted extent.
|
||
1229 | * <li><i>adjustedExtentY</i>: Y coordinate of the adjusted extent.
|
||
1230 | * <li><i>adjustedExtentW</i>: width of the adjusted extent.
|
||
1231 | * <li><i>adjustedExtentH</i>: height of the adjusted extent.
|
||
1232 | * </ul>
|
||
1233 | * <li>If defined, the background color:
|
||
1234 | * <ul>
|
||
1235 | * <li><i>backColor</i>: background color.
|
||
1236 | * </ul>
|
||
1237 | * <li>If defined, the clip:
|
||
1238 | * <ul>
|
||
1239 | * <li><i>clipX</i>: X coordinate of the clip.
|
||
1240 | * <li><i>clipY</i>: Y coordinate of clip.
|
||
1241 | * <li><i>clipW</i>: width of the clip.
|
||
1242 | * <li><i>clipH</i>: height of the clip.
|
||
1243 | * </ul>
|
||
1244 | * <li><i>dist1pixel</i>: the distance in world coordinates equivalent to 1 pixel in the view.
|
||
1245 | * <li><i>dist3pixel</i>: the distance in world coordinates equivalent to 3 pixels in the view.
|
||
1246 | * <li><i>distanceUnits</i>: the distance measurement unit.
|
||
1247 | * <li>If defined, the extent:
|
||
1248 | * <ul>
|
||
1249 | * <li><i>extentX</i>: X coordinate of the extent.
|
||
1250 | * <li><i>extentY</i>: Y coordinate of the extent.
|
||
1251 | * <li><i>extentW</i>: width of the extent.
|
||
1252 | * <li><i>extentH</i>: height of the extent.
|
||
1253 | * </ul>
|
||
1254 | * <li><i>mapUnits</i>: the map measurement unit.
|
||
1255 | * <li><i>offsetX</i>: X coordinate of the offset.
|
||
1256 | * <li><i>offsetY</i>: Y coordinate of the offset.
|
||
1257 | * <li>If defined, the projection:
|
||
1258 | * <ul>
|
||
1259 | * <li>If its defined, the projection:
|
||
1260 | * <ul>
|
||
1261 | * <li><i>proj</i>: the projection.</li>
|
||
1262 | * </ul>
|
||
1263 | * </ul>
|
||
1264 | * <li><i>scale</i>: ratio between the size of <code>imageSize</code> and <code>extent</code>.
|
||
1265 | * </ul>
|
||
1266 | * <li>Child branches:
|
||
1267 | * <ul>
|
||
1268 | * <li>XML entity of the internal {@link ExtentHistory ExtentHistory} .
|
||
1269 | * </ul>
|
||
1270 | * </ul>
|
||
1271 | *
|
||
1272 | * @return the XML entity
|
||
1273 | *
|
||
1274 | * @see #createFromXML(XMLEntity)
|
||
1275 | */
|
||
1276 | public XMLEntity getXMLEntity() {
|
||
1277 | XMLEntity xml = new XMLEntity();
|
||
1278 | xml.putProperty("className",this.getClass().getName()); |
||
1279 | |||
1280 | if (adjustedExtent != null) { |
||
1281 | xml.putProperty("adjustedExtentX", adjustedExtent.getX());
|
||
1282 | xml.putProperty("adjustedExtentY", adjustedExtent.getY());
|
||
1283 | xml.putProperty("adjustedExtentW", adjustedExtent.getWidth());
|
||
1284 | xml.putProperty("adjustedExtentH", adjustedExtent.getHeight());
|
||
1285 | } |
||
1286 | |||
1287 | 26905 | jmvivo | if (backColor != null) { |
1288 | xml.putProperty("backColor", StringUtilities.color2String(backColor));
|
||
1289 | } |
||
1290 | 21200 | vcaballero | |
1291 | if (clip != null) { |
||
1292 | xml.putProperty("clipX", clip.getX());
|
||
1293 | xml.putProperty("clipY", clip.getY());
|
||
1294 | xml.putProperty("clipW", clip.getWidth());
|
||
1295 | xml.putProperty("clipH", clip.getHeight());
|
||
1296 | } |
||
1297 | |||
1298 | xml.putProperty("dist1pixel", dist1pixel);
|
||
1299 | xml.putProperty("dist3pixel", dist3pixel);
|
||
1300 | xml.putProperty("distanceUnits", distanceUnits);
|
||
1301 | |||
1302 | if (extent != null) { |
||
1303 | xml.putProperty("extentX", extent.getX());
|
||
1304 | xml.putProperty("extentY", extent.getY());
|
||
1305 | xml.putProperty("extentW", extent.getWidth());
|
||
1306 | xml.putProperty("extentH", extent.getHeight());
|
||
1307 | } |
||
1308 | |||
1309 | xml.addChild(extents.getXMLEntity()); |
||
1310 | xml.putProperty("mapUnits", mapUnits);
|
||
1311 | xml.putProperty("offsetX", offset.getX());
|
||
1312 | xml.putProperty("offsetY", offset.getY());
|
||
1313 | |||
1314 | if (proj != null) { |
||
1315 | xml.putProperty("proj", proj.getAbrev());
|
||
1316 | } |
||
1317 | |||
1318 | xml.putProperty("scale", scale);
|
||
1319 | |||
1320 | return xml;
|
||
1321 | } |
||
1322 | |||
1323 | |||
1324 | /**
|
||
1325 | * <p>Creates a new <code>ViewPort</code> from an XML entity.</p>
|
||
1326 | *
|
||
1327 | * @param xml an XML entity
|
||
1328 | *
|
||
1329 | * @return the new <code>ViewPort</code>
|
||
1330 | *
|
||
1331 | * @see #getXMLEntity()
|
||
1332 | */
|
||
1333 | public static ViewPort createFromXML(XMLEntity xml) { |
||
1334 | ViewPort vp = new ViewPort(null); |
||
1335 | |||
1336 | if (xml.contains("adjustedExtentX")) { |
||
1337 | vp.adjustedExtent = new Rectangle2D.Double(xml.getDoubleProperty( |
||
1338 | "adjustedExtentX"),
|
||
1339 | xml.getDoubleProperty("adjustedExtentY"),
|
||
1340 | xml.getDoubleProperty("adjustedExtentW"),
|
||
1341 | xml.getDoubleProperty("adjustedExtentH"));
|
||
1342 | } |
||
1343 | |||
1344 | if (xml.contains("backColor")) { |
||
1345 | vp.setBackColor(StringUtilities.string2Color(xml.getStringProperty( |
||
1346 | "backColor")));
|
||
1347 | }else {
|
||
1348 | vp.setBackColor(Color.white);
|
||
1349 | } |
||
1350 | |||
1351 | if (xml.contains("clipX")) { |
||
1352 | vp.clip = new Rectangle2D.Double(xml.getDoubleProperty("clipX"), |
||
1353 | xml.getDoubleProperty("clipY"),
|
||
1354 | xml.getDoubleProperty("clipW"),
|
||
1355 | xml.getDoubleProperty("clipH"));
|
||
1356 | } |
||
1357 | |||
1358 | vp.setDist1pixel(xml.getDoubleProperty("dist1pixel"));
|
||
1359 | vp.setDist3pixel(xml.getDoubleProperty("dist3pixel"));
|
||
1360 | vp.setDistanceUnits(xml.getIntProperty("distanceUnits"));
|
||
1361 | if (xml.contains("distanceArea")){ |
||
1362 | vp.setDistanceArea(xml.getIntProperty("distanceArea"));
|
||
1363 | }else{
|
||
1364 | vp.setDistanceArea(xml.getIntProperty("distanceUnits"));
|
||
1365 | } |
||
1366 | vp.extents = ExtentHistory.createFromXML(xml.getChild(0));
|
||
1367 | |||
1368 | if (xml.contains("extentX")) { |
||
1369 | 21426 | vcaballero | double x=xml.getDoubleProperty("extentX"); |
1370 | double y=xml.getDoubleProperty("extentY"); |
||
1371 | 27414 | jpiera | try {
|
1372 | vp.setEnvelope(geomManager.createEnvelope(x,y, |
||
1373 | x+xml.getDoubleProperty("extentW"),y+xml.getDoubleProperty("extentH"), SUBTYPES.GEOM2D)); |
||
1374 | } catch (CreateEnvelopeException e) {
|
||
1375 | e.printStackTrace(); |
||
1376 | logger.error("Error setting the extent", e);
|
||
1377 | } |
||
1378 | 21200 | vcaballero | |
1379 | //Calcula la transformaci?n af?n
|
||
1380 | vp.calculateAffineTransform(); |
||
1381 | |||
1382 | // Lanzamos los eventos de extent cambiado
|
||
1383 | // vp.callExtentListeners(vp.adjustedExtent);
|
||
1384 | } |
||
1385 | |||
1386 | vp.setMapUnits(xml.getIntProperty("mapUnits"));
|
||
1387 | vp.setOffset(new Point2D.Double(xml.getDoubleProperty("offsetX"), |
||
1388 | xml.getDoubleProperty("offsetY")));
|
||
1389 | |||
1390 | if (xml.contains("proj")) { |
||
1391 | vp.proj = CRSFactory.getCRS(xml.getStringProperty("proj"));
|
||
1392 | } |
||
1393 | |||
1394 | //vp.setScale(xml.getDoubleProperty("scale"));
|
||
1395 | vp.refreshExtent(); |
||
1396 | return vp;
|
||
1397 | } |
||
1398 | |||
1399 | /**
|
||
1400 | * <p>Fast clone implementation: creates and returns a clone of this view port using XML entities.</p>
|
||
1401 | * <p>Isn't a <i>deepclone</i> to avoid unnecessary memory consumption.</p>
|
||
1402 | *
|
||
1403 | * @return the new view port
|
||
1404 | *
|
||
1405 | * @see #createFromXML(XMLEntity)
|
||
1406 | */
|
||
1407 | public ViewPort cloneViewPort() {
|
||
1408 | return createFromXML(getXMLEntity());
|
||
1409 | } |
||
1410 | |||
1411 | /**
|
||
1412 | * <p>Returns a <code>String</code> representation of the main values of this view port: <code>{@linkplain #extent}</code>,
|
||
1413 | * <code>{@linkplain #adjustedExtent}</code>, <code>{@linkplain #imageSize}</code>, <code>{@linkplain #scale}</code>, and <code>{@linkplain #trans}</code>.</p>
|
||
1414 | *
|
||
1415 | * @return a <code>string</code> representation of the main values of this view port
|
||
1416 | */
|
||
1417 | public String toString() { |
||
1418 | |||
1419 | String str;
|
||
1420 | str = "Datos del viewPort:\nExtent=" + extent + "\nadjustedExtent=" + |
||
1421 | adjustedExtent + "\nimageSize=" + imageSize + "\nescale=" + scale + |
||
1422 | "\ntrans=" + trans;
|
||
1423 | |||
1424 | return str;
|
||
1425 | } |
||
1426 | |||
1427 | /**
|
||
1428 | * <p>Sets the position and size of the clipping rectangle.</p>
|
||
1429 | *
|
||
1430 | * @param rectView the clipping rectangle to set
|
||
1431 | */
|
||
1432 | public void setClipRect(Rectangle2D rectView) { |
||
1433 | 26225 | jmvivo | this.updateDrawVersion();
|
1434 | 21200 | vcaballero | cliprect=rectView; |
1435 | } |
||
1436 | 26905 | jmvivo | |
1437 | 21200 | vcaballero | /**
|
1438 | * <p>Converts and returns the {@link Rectangle2D Rectangle2D}, that is in <i>map
|
||
1439 | * coordinates</i> to <i>screen coordinates</i> (pixels) using an <i>inverse transform</i> with
|
||
1440 | * the transformation affine information in the {@link #trans #trans} attribute.</p>
|
||
1441 | *
|
||
1442 | * @param r the 2D rectangle in <i>map coordinates</i>
|
||
1443 | * @return 2D rectangle equivalent in <i>screen coordinates</i> (pixels)
|
||
1444 | *
|
||
1445 | * @see #toMapRectangle(Rectangle2D)
|
||
1446 | * @see #fromMapDistance(double)
|
||
1447 | * @see #fromMapPoint(Point2D)
|
||
1448 | */
|
||
1449 | public Rectangle2D fromMapRectangle(Rectangle2D r) { |
||
1450 | Rectangle2D rect=new Rectangle2D.Double(); |
||
1451 | Point2D p1=fromMapPoint((int)r.getX(),(int)r.getY()); |
||
1452 | Point2D p2=fromMapPoint((int)r.getMaxX(),(int)r.getMaxY()); |
||
1453 | rect.setFrameFromDiagonal(p1,p2); |
||
1454 | return rect;
|
||
1455 | } |
||
1456 | |||
1457 | /**
|
||
1458 | * <p>Recalculates the current <code>{@linkplain #extent}</code> using an scale. It's necessary execute {@linkplain #refreshExtent()} after.</p>
|
||
1459 | *
|
||
1460 | * @param s the scale to set
|
||
1461 | *
|
||
1462 | * @deprecated since 07/09/07, use {@linkplain MapContext#setScaleView(long)}
|
||
1463 | */
|
||
1464 | public void setScale(long s){ |
||
1465 | double x=extent.getX();
|
||
1466 | double y=extent.getY();
|
||
1467 | double escalaX = imageSize.getWidth() / extent.getWidth();
|
||
1468 | double w=imageSize.getWidth() / s;
|
||
1469 | double h=imageSize.getHeight() / s;
|
||
1470 | double difw = escalaX/s;
|
||
1471 | |||
1472 | double x1 = (-x * difw) -
|
||
1473 | x+ |
||
1474 | extent.getWidth()/2;
|
||
1475 | double y1 = (-y * difw) -
|
||
1476 | y + |
||
1477 | extent.getHeight()/2;
|
||
1478 | double w1=extent.getWidth()*difw;
|
||
1479 | double h1=extent.getHeight()*difw;
|
||
1480 | extent.setRect(-x1,-y1,w1,h1); |
||
1481 | } |
||
1482 | 26225 | jmvivo | |
1483 | |||
1484 | public long getDrawVersion() { |
||
1485 | return this.drawVersion; |
||
1486 | } |
||
1487 | |||
1488 | protected void updateDrawVersion(){ |
||
1489 | this.drawVersion++;
|
||
1490 | } |
||
1491 | |||
1492 | 21200 | vcaballero | } |