svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / ViewPort.java @ 28954
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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>
|
||
| 409 | *
|
||
| 410 | * @param arg0 the listener to remove
|
||
| 411 | *
|
||
| 412 | * @return <code>true</code> if the contained the specified listener.
|
||
| 413 | *
|
||
| 414 | * @see #addViewPortListener(ViewPortListener)
|
||
| 415 | */
|
||
| 416 | public boolean removeViewPortListener(ViewPortListener arg0) { |
||
| 417 | return listeners.remove(arg0);
|
||
| 418 | } |
||
| 419 | |||
| 420 | /**
|
||
| 421 | * <p>Converts and returns the distance <code>d</code>, that is in <i>map
|
||
| 422 | * coordinates</i> to <i>screen coordinates</i> using a <i>delta transform</i> with
|
||
| 423 | * the transformation affine information in the {@link #trans #trans} attribute.</p>
|
||
| 424 | *
|
||
| 425 | * @param d distance in <i>map coordinates</i>
|
||
| 426 | *
|
||
| 427 | * @return distance equivalent in <i>screen coordinates</i>
|
||
| 428 | *
|
||
| 429 | * @see #toMapDistance(int)
|
||
| 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 | } |