svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / ViewPort.java @ 29519
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/* gvSIG. Sistema de Informaci�n Geogr�fica de la Generalitat Valenciana
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*
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* Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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*
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* Generalitat Valenciana
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* Conselleria d'Infraestructures i Transport
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* Av. Blasco Ib��ez, 50
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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* IVER T.I. S.A
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* Salamanca 50
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* 46005 Valencia
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* Spain
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*
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* +34 963163400
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* dac@iver.es
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*/
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package org.gvsig.fmap.mapcontext; |
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import java.awt.Color; |
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import java.awt.Dimension; |
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import java.awt.Point; |
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import java.awt.Toolkit; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.util.ArrayList; |
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import org.cresques.cts.GeoCalc; |
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import org.cresques.cts.IProjection; |
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import org.cresques.cts.UTM; |
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import org.gvsig.fmap.crs.CRSFactory; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.geom.util.UtilFunctions; |
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import org.gvsig.fmap.mapcontext.events.ColorEvent; |
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import org.gvsig.fmap.mapcontext.events.ExtentEvent; |
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import org.gvsig.fmap.mapcontext.events.ProjectionEvent; |
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import org.gvsig.fmap.mapcontext.events.listeners.ViewPortListener; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import com.iver.utiles.StringUtilities; |
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import com.iver.utiles.XMLEntity; |
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/**
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* <p>
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* <code>ViewPort</code> class represents the logic needed to transform a
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* rectangular area of a map to the available area in screen to display it.
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* </p>
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*
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* <p>
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* Includes an affine transformation, between the rectangular area selected of
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* the external map, in its own <i>map coordinates</i>, to the rectangular area
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* available of a view in <i>screen coordinates</i>.
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* </p>
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*
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* <p>
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* Elements:
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* <ul>
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* <li><i>extent</i>: the area selected of the map, in <i>map coordinates</i>.
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* <li><i>imageSize</i>: width and height in pixels (<i>screen coordinates</i>)
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* of the area available in screen to display the area selected of the map.
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* <li><i>adjustedExtent</i>: the area selected must be an scale of
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* <i>imageSize</i>.<br>
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* This implies adapt the extent, preserving and centering it, and adding around
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* the needed area to fill all the image size. That added area will be extracted
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* from the original map, wherever exists, and filled with the background color
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* wherever not.
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* <li><i>scale</i>: the scale between the adjusted extent and the image size.
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* <li><i>backColor</i>: the default background color in the view, if there is
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* no map.
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* <li><i>trans</i>: the affine transformation.
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* <li><i>proj</i>: map projection used in this view.
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* <li><i>distanceUnits</i>: distance measurement units, of data in screen.
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* <li><i>mapUnits</i>: measurement units, of data in map.
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* <li><i>extents</i>: an {@link ExtentHistory ExtentHistory} with the last
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* previous extents.
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* <li><i>offset</i>: position in pixels of the available rectangular area,
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* where start drawing the map.
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* <li><i>dist1pixel</i>: the distance in <i>world coordinates</i> equivalent to
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* 1 pixel in the view with the current extent.
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* <li><i>dist3pixel</i>: the distance in <i>world coordinates</i> equivalent to
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* 3 pixels in the view with the current extent.
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* <li><i>listeners</i>: list with the {@link ViewPortListener ViewPortListener}
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* registered.
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* </ul>
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* </p>
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*
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* @author Vicente Caballero Navarro
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*/
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public class ViewPort { |
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// /**
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// * <p>Metric unit or length equal to 1000 meters.</p>
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// */
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// public static int KILOMETROS = 0;
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//
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// /**
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// * <p>The base unit of length in the International System of Units that is
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// equal to the distance
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// * traveled by light in a vacuum in {frac;1;299,792,458} second or to
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// about 39.37 inches.</p>
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// */
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// public static int METROS = 1;
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//
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// /**
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// * <p>Metric unit or length equal to 0'01 meters.</p>
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// */
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// public static int CENTIMETRO = 2;
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//
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// /**
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// * <p>Metric unit or length equal to 0'001 meters.</p>
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// */
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// public static int MILIMETRO = 3;
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//
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// /**
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// * <p>The international statute mile by international agreement. It is
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// defined to be precisely
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// * 1,760 international yards (by definition, 0.9144 m each) and is
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// therefore exactly 1,609.344
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// * metres (1.609344 km).</p>
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// */
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// public static int MILLAS = 4;
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//
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// /**
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// * <p>Unit of length equal in the United States to 0.9144 meter.</p>
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// */
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// public static int YARDAS = 5;
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//
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// /**
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// * <p>Any of various units of length based on the length of the human
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// foot; especially :
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// * a unit equal to 1/3 yard and comprising 12 inches.</p>
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// */
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// public static int PIES = 6;
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//
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// /**
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// * <p>Unit of length equal to 1/36 yard.</p>
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// */
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// public static int PULGADAS = 7;
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//
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// /**
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// * <p>Grades according the current projection.</p>
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// */
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// public static int GRADOS = 8;
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private static final GeometryManager geomManager = GeometryLocator |
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.getGeometryManager(); |
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private static final Logger logger = LoggerFactory |
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.getLogger(GeometryManager.class); |
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/**
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* <p>
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* Screen resolution in <i>dots-per-inch</i>. Useful to calculate the
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* geographic scale of the view.
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* </p>
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*
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* @see Toolkit#getScreenResolution()
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* @see #getScale()
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*/
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private static int dpi = java.awt.Toolkit.getDefaultToolkit() |
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.getScreenResolution(); |
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/**
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* <p>
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* Area selected by user using some tool.
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* </p>
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*
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* <p>
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* When the zoom changes (for instance when using the zoom in or zoom out
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* tools, but also zooming to a selected feature or shape) the extent that
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* covers that area is the value returned by this method. It is not the
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* actual area shown in the view because it does not care about the aspect
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* ratio of the available area. However, any part of the real world
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* contained in this extent is shown in the view.
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* </p>
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* <p>
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* Probably this is not what you are looking for. If you are looking for the
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* complete extent currently shown, you must use
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* {@linkplain #getAdjustedExtent()} method which returns the extent that
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* contains this one but regarding the current view's aspect ratio.
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* </p>
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*
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* @see #getExtent()
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* @see #setEnvelope(Envelope)
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*/
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protected Rectangle2D extent; |
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/**
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* <p>
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* Location and dimensions of the extent adjusted to the image size.
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* </p>
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*
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* @see #getAdjustedExtent()
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*/
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protected Rectangle2D adjustedExtent; |
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/**
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* Draw version of the context. It's used for know when de componend has
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* changed any visualization property
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*
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* @see getDrawVersion
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* @see updateDrawVersion
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*/
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private long drawVersion = 0L; |
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/**
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* <p>
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* History with the last extents of the view.
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* </p>
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*
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* @see #setPreviousExtent()
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* @see #getExtents()
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*/
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protected ExtentHistory extents = new ExtentHistory(); |
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/**
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* <p>
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* Size in <i>screen coordinates</i> of the rectangle where the image is
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* displayed.
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* </p>
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* <p>
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* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
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*
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* <ul>
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* <li>The new {@link #scale scale} .
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* <li>The new {@link #adjustedExtent adjustableExtent} .
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* <li>The new {@link #trans trans} .
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* <li>The new real world coordinates equivalent to 1 pixel (
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* {@link #dist1pixel dist1pixel}) .
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* <li>The new real world coordinates equivalent to 3 pixels (
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* {@link #dist3pixel dist3pixel}) .
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* </ul>
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* </p>
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*
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* @see #getImageSize()
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* @see #getImageHeight()
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* @see #getImageWidth()
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* @see #setImageSize(Dimension)
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*/
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private Dimension imageSize; |
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/**
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* <p>
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* the affine transformation between the {@link #extent extent} in <i>map 2D
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* coordinates</i> to the image area in the screen, in <i>screen 2D
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* coordinates</i> (pixels).
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* </p>
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*
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* @see AffineTransform
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*
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* @see #getAffineTransform()
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* @see #setAffineTransform(AffineTransform)
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* @see #calculateAffineTransform()
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*/
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private AffineTransform trans = new AffineTransform(); |
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/**
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* <p>
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* Measurement unit used for measuring distances and displaying information.
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* </p>
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*
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* @see #getDistanceUnits()
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* @see #setDistanceUnits(int)
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*/
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private int distanceUnits = 1; |
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/**
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* <p>
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* Measurement unit used for measuring areas and displaying information.
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* </p>
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*
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* @see #getDistanceArea()
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* @see #setDistanceArea(int)
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*/
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private int distanceArea = 1; |
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/**
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* <p>
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* Measurement unit used by this view port for the map.
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* </p>
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*
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* @see #getMapUnits()
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* @see #setMapUnits(int)
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*/
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private int mapUnits = 1; |
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/**
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* <p>
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* Array with the {@link ViewPortListener ViewPortListener}s registered to
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* this view port.
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* </p>
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*
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* @see #addViewPortListener(ViewPortListener)
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* @see #removeViewPortListener(ViewPortListener)
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*/
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private ArrayList listeners = new ArrayList(); |
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/**
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* <p>
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* The offset is the position where start drawing the map.
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* </p>
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* <p>
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* The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
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* <i>View</i> is always (0, 0) because the drawing area fits with the full
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* window area. But in a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
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* <i>Layout</i> it's up to the place where the <code>FFrameView</code> is
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* located.
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* </p>
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*
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* @see #getOffset()
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* @see #setOffset(Point2D)
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*/
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private Point2D offset = new Point2D.Double(0, 0); |
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/**
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* <p>
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* Clipping area.
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* </p>
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*/
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private Rectangle2D clip; |
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/**
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* <p>
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* Background color of this view.
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* </p>
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*
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* @see #getBackColor()
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* @see #setBackColor(Color)
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*/
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private Color backColor = null; // Color.WHITE; |
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/**
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* <p>
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* Information about the map projection used in this view.
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* </p>
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*
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* @see #getProjection()
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* @see #setProjection(IProjection)
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*/
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private IProjection proj;
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/**
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* <p>
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* Represents the distance in <i>world coordinates</i> equivalent to 1 pixel
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* in the view with the current extent.
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* </p>
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*
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* @see #getDist1pixel()
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* @see #setDist1pixel(double)
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*/
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private double dist1pixel; |
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/**
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* <p>
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* Represents the distance in <i>world coordinates</i> equivalent to 3
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* pixels in the view with the current extent.
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* </p>
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*
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* @see #getDist3pixel()
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* @see #setDist3pixel(double)
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*/
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private double dist3pixel; |
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/**
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* <p>
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* Ratio between the size of <code>imageSize</code> and <code>extent</code>:
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* <br>
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* <i>
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*
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* <pre>
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* min{(imageSize.getHeight()/extent.getHeight(), imageSize.getWidth()/extent.getWidth())}
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* </pre>
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*
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* </i>
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* </p>
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*/
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private double scale; |
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/**
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* <p>
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* Clipping area.
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* </p>
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*
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* @see #setClipRect(Rectangle2D)
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*/
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private Rectangle2D cliprect; |
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/**
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* <p>
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* Enables or disables the <i>"adjustable extent"</i> mode.
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* </p>
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*
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* <p>
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* When calculates the affine transform, if
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* <ul>
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* <li><i>enabled</i>: the new <code>adjustedExtent</code> will have the (X,
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* Y) coordinates of the <code>extent</code> and an area that will be an
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* scale of the image size. That area will have different height or width
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* (not both) of the extent according the least ratio (height or width) in
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*
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* <pre>
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* image.size/extent.size"
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* </pre>.
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* <li><i>disabled</i>: the new <code>adjustedExtent</code> will be like
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* <code>extent</code>.
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* </ul>
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* </p>
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*
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* @see #setAdjustable(boolean)
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*/
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private boolean adjustableExtent = true; |
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/**
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* <p>
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* Creates a new view port with the information of the projection in
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* <code>proj</code> argument, and default configuration:
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* </p>
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* <p>
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* <ul>
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* <li><i><code>distanceUnits</code></i> = meters
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* <li><i><code>mapUnits</code></i> = meters
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* <li><i><code>backColor</code></i> = <i>undefined</i>
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* <li><i><code>offset</code></i> = <code>new Point2D.Double(0, 0);</code>
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* </ul>
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* </p>
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*
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* @param proj
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* information of the projection for this view port
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*/
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public ViewPort(IProjection proj) {
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// Por defecto
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this.proj = proj;
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} |
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/**
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* <p>
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* Changes the status of the <i>"adjustable extent"</i> option to enabled or
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* disabled.
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* </p>
|
| 465 |
*
|
| 466 |
* <p>
|
| 467 |
* If view port isn't adjustable, won't bear in mind the aspect ratio of the
|
| 468 |
* available rectangular area to calculate the affine transform from the
|
| 469 |
* original map in real coordinates. (Won't scale the image to adapt it to
|
| 470 |
* the available rectangular area).
|
| 471 |
* </p>
|
| 472 |
*
|
| 473 |
* @param boolean the boolean to be set
|
| 474 |
*/
|
| 475 |
public void setAdjustable(boolean adjustable) { |
| 476 |
if (adjustable == adjustableExtent) {
|
| 477 |
return;
|
| 478 |
} |
| 479 |
adjustableExtent = adjustable; |
| 480 |
this.updateDrawVersion();
|
| 481 |
} |
| 482 |
|
| 483 |
/**
|
| 484 |
* <p>
|
| 485 |
* Appends the specified {@link ViewPortListener ViewPortListener} listener
|
| 486 |
* if weren't.
|
| 487 |
* </p>
|
| 488 |
*
|
| 489 |
* @param arg0
|
| 490 |
* the listener to add
|
| 491 |
*
|
| 492 |
* @return <code>true</code> if has been added successfully
|
| 493 |
*
|
| 494 |
* @see #removeViewPortListener(ViewPortListener)
|
| 495 |
*/
|
| 496 |
public boolean addViewPortListener(ViewPortListener arg0) { |
| 497 |
if (!listeners.contains(arg0)) {
|
| 498 |
return listeners.add(arg0);
|
| 499 |
} |
| 500 |
return false; |
| 501 |
} |
| 502 |
|
| 503 |
/**
|
| 504 |
* <p>
|
| 505 |
* Removes the specified {@link ViewPortListener ViewPortListener} listener,
|
| 506 |
* if existed.
|
| 507 |
* </p>
|
| 508 |
*
|
| 509 |
* @param arg0
|
| 510 |
* the listener to remove
|
| 511 |
*
|
| 512 |
* @return <code>true</code> if the contained the specified listener.
|
| 513 |
*
|
| 514 |
* @see #addViewPortListener(ViewPortListener)
|
| 515 |
*/
|
| 516 |
public boolean removeViewPortListener(ViewPortListener arg0) { |
| 517 |
return listeners.remove(arg0);
|
| 518 |
} |
| 519 |
|
| 520 |
/**
|
| 521 |
* <p>
|
| 522 |
* Converts and returns the distance <code>d</code>, that is in <i>map
|
| 523 |
* coordinates</i> to <i>screen coordinates</i> using a <i>delta
|
| 524 |
* transform</i> with the transformation affine information in the
|
| 525 |
* {@link #trans #trans} attribute.
|
| 526 |
* </p>
|
| 527 |
*
|
| 528 |
* @param d
|
| 529 |
* distance in <i>map coordinates</i>
|
| 530 |
*
|
| 531 |
* @return distance equivalent in <i>screen coordinates</i>
|
| 532 |
*
|
| 533 |
* @see #toMapDistance(int)
|
| 534 |
* @see AffineTransform#deltaTransform(Point2D, Point2D)S
|
| 535 |
*/
|
| 536 |
public int fromMapDistance(double d) { |
| 537 |
Point2D.Double pWorld = new Point2D.Double(1, 1); |
| 538 |
Point2D.Double pScreen = new Point2D.Double(); |
| 539 |
|
| 540 |
try {
|
| 541 |
trans.deltaTransform(pWorld, pScreen); |
| 542 |
} catch (Exception e) { |
| 543 |
System.err.print(e.getMessage());
|
| 544 |
} |
| 545 |
|
| 546 |
return (int) (d * pScreen.x); |
| 547 |
} |
| 548 |
|
| 549 |
/**
|
| 550 |
* <p>
|
| 551 |
* Converts and returns the 2D point <code>(x,y)</code>, that is in <i>map
|
| 552 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
| 553 |
* transformation in the {@link #trans #trans} attribute.
|
| 554 |
* </p>
|
| 555 |
*
|
| 556 |
* @param x
|
| 557 |
* the <code>x</code> <i>map coordinate</i> of a 2D point
|
| 558 |
* @param y
|
| 559 |
* the <code>y</code> <i>map coordinate</i> of a 2D point
|
| 560 |
*
|
| 561 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
| 562 |
*
|
| 563 |
* @see #fromMapPoint(Point2D)
|
| 564 |
* @see AffineTransform#transform(Point2D, Point2D)
|
| 565 |
*/
|
| 566 |
public Point2D fromMapPoint(double x, double y) { |
| 567 |
Point2D.Double pWorld = new Point2D.Double(x, y); |
| 568 |
Point2D.Double pScreen = new Point2D.Double(); |
| 569 |
|
| 570 |
try {
|
| 571 |
trans.transform(pWorld, pScreen); |
| 572 |
} catch (Exception e) { |
| 573 |
System.err.print(e.getMessage());
|
| 574 |
} |
| 575 |
|
| 576 |
return pScreen;
|
| 577 |
} |
| 578 |
|
| 579 |
/**
|
| 580 |
* <p>
|
| 581 |
* Converts and returns the 2D point argument, that is in <i>map
|
| 582 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
| 583 |
* transformation in the {@link #trans #trans} attribute.
|
| 584 |
* </p>
|
| 585 |
*
|
| 586 |
* @param point
|
| 587 |
* the 2D point in <i>map coordinates</i>
|
| 588 |
*
|
| 589 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
| 590 |
*
|
| 591 |
* @see #toMapPoint(Point2D)
|
| 592 |
* @see #fromMapPoint(double, double)
|
| 593 |
*/
|
| 594 |
public Point2D fromMapPoint(Point2D point) { |
| 595 |
return fromMapPoint(point.getX(), point.getY());
|
| 596 |
} |
| 597 |
|
| 598 |
/**
|
| 599 |
* <p>
|
| 600 |
* Converts and returns the 2D point <code>(x,y)</code>, that is in
|
| 601 |
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using the
|
| 602 |
* affine transformation in the {@link #trans #trans} attribute.
|
| 603 |
* </p>
|
| 604 |
*
|
| 605 |
* @param x
|
| 606 |
* the <code>x</code> <i>screen coordinate</i> of a 2D point
|
| 607 |
* @param y
|
| 608 |
* the <code>y</code> <i>screen coordinate</i> of a 2D point
|
| 609 |
*
|
| 610 |
* @return 2D point equivalent in <i>map coordinates</i>
|
| 611 |
*
|
| 612 |
* @see #toMapPoint(Point2D)
|
| 613 |
* @see #fromMapPoint(double, double)
|
| 614 |
*/
|
| 615 |
public Point2D toMapPoint(int x, int y) { |
| 616 |
Point2D pScreen = new Point2D.Double(x, y); |
| 617 |
|
| 618 |
return toMapPoint(pScreen);
|
| 619 |
} |
| 620 |
|
| 621 |
/**
|
| 622 |
* <p>
|
| 623 |
* Converts and returns the {@link Rectangle2D Rectangle2D}, that is in
|
| 624 |
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using
|
| 625 |
* {@linkplain #toMapDistance(int)}, and {@linkplain #toMapPoint(int, int)}.
|
| 626 |
* </p>
|
| 627 |
*
|
| 628 |
* @param r
|
| 629 |
* the 2D rectangle in <i>screen coordinates</i> (pixels)
|
| 630 |
* @return 2D rectangle equivalent in <i>map coordinates</i>
|
| 631 |
*
|
| 632 |
* @see #fromMapRectangle(Rectangle2D)
|
| 633 |
* @see #toMapDistance(int)
|
| 634 |
* @see #toMapPoint(int, int)
|
| 635 |
*/
|
| 636 |
public Rectangle2D toMapRectangle(Rectangle2D r) { |
| 637 |
Rectangle2D rect = new Rectangle2D.Double(); |
| 638 |
Point2D p1 = toMapPoint((int) r.getX(), (int) r.getY()); |
| 639 |
Point2D p2 = toMapPoint((int) r.getMaxX(), (int) r.getMaxY()); |
| 640 |
rect.setFrameFromDiagonal(p1, p2); |
| 641 |
return rect;
|
| 642 |
} |
| 643 |
|
| 644 |
/**
|
| 645 |
* <p>
|
| 646 |
* Converts and returns the distance <code>d</code>, that is in <i>screen
|
| 647 |
* coordinates</i> to <i>map coordinates</i> using the transformation affine
|
| 648 |
* information in the {@link #trans #trans} attribute.
|
| 649 |
* </p>
|
| 650 |
*
|
| 651 |
* @param d
|
| 652 |
* distance in pixels
|
| 653 |
*
|
| 654 |
* @return distance equivalent in <i>map coordinates</i>
|
| 655 |
*
|
| 656 |
* @see #fromMapDistance(double)
|
| 657 |
* @see AffineTransform
|
| 658 |
*/
|
| 659 |
public double toMapDistance(int d) { |
| 660 |
double dist = d / trans.getScaleX();
|
| 661 |
|
| 662 |
return dist;
|
| 663 |
} |
| 664 |
|
| 665 |
/**
|
| 666 |
* <p>
|
| 667 |
* Converts and returns the 2D point argument, that is in <i>screen
|
| 668 |
* coordinates</i> (pixels) to <i>map coordinates</i> using the inverse
|
| 669 |
* affine transformation of the {@link #trans #trans} attribute.
|
| 670 |
* </p>
|
| 671 |
*
|
| 672 |
* @param pScreen
|
| 673 |
* the 2D point in <i>screen coordinates</i> (pixels)
|
| 674 |
*
|
| 675 |
* @return 2D point equivalent in <i>map coordinates</i>
|
| 676 |
*
|
| 677 |
* @see #toMapPoint(int, int)
|
| 678 |
* @see AffineTransform#createInverse()
|
| 679 |
* @see AffineTransform#transform(Point2D, Point2D)
|
| 680 |
*/
|
| 681 |
public Point2D toMapPoint(Point2D pScreen) { |
| 682 |
Point2D.Double pWorld = new Point2D.Double(); |
| 683 |
AffineTransform at;
|
| 684 |
|
| 685 |
try {
|
| 686 |
at = trans.createInverse(); |
| 687 |
at.transform(pScreen, pWorld); |
| 688 |
} catch (NoninvertibleTransformException e) { |
| 689 |
throw new RuntimeException("Non invertible transform Exception", e); |
| 690 |
} |
| 691 |
|
| 692 |
return pWorld;
|
| 693 |
} |
| 694 |
|
| 695 |
/**
|
| 696 |
* <p>
|
| 697 |
* Returns the real distance (in <i>world coordinates</i>) at the graphic
|
| 698 |
* layers of two 2D points (in <i>map coordinates</i>) of the plane where is
|
| 699 |
* selected the <i>extent</i>.
|
| 700 |
* </p>
|
| 701 |
* <p>
|
| 702 |
* If the projection of this view is UTM, considers the Earth curvature.
|
| 703 |
* </p>
|
| 704 |
*
|
| 705 |
* @param pt1
|
| 706 |
* a 2D point in <i>map coordinates</i>
|
| 707 |
* @param pt2
|
| 708 |
* another 2D point in <i>map coordinates</i>
|
| 709 |
*
|
| 710 |
* @return the distance in meters between the two points 2D
|
| 711 |
*
|
| 712 |
* @see GeoCalcImpl#distanceVincenty(Point2D, Point2D)
|
| 713 |
*/
|
| 714 |
public double distanceWorld(Point2D pt1, Point2D pt2) { |
| 715 |
double dist = -1; |
| 716 |
dist = pt1.distance(pt2); |
| 717 |
|
| 718 |
if ((proj != null) && !(proj instanceof UTM)) { |
| 719 |
dist = new GeoCalc(proj).distanceVincenty(proj.toGeo(pt1), proj
|
| 720 |
.toGeo(pt2)); |
| 721 |
return dist;
|
| 722 |
} |
| 723 |
return (dist * MapContext.getDistanceTrans2Meter()[getMapUnits()]);
|
| 724 |
} |
| 725 |
|
| 726 |
/**
|
| 727 |
* <p>
|
| 728 |
* Sets as extent and adjusted extent of this view port, the previous.
|
| 729 |
* Recalculating its parameters.
|
| 730 |
* </p>
|
| 731 |
*
|
| 732 |
* @see #getExtents()
|
| 733 |
* @see #calculateAffineTransform()
|
| 734 |
* @deprecated use {@link ViewPort#setPreviousEnvelope()}
|
| 735 |
*/
|
| 736 |
public void setPreviousExtent() { |
| 737 |
setPreviousEnvelope(); |
| 738 |
} |
| 739 |
|
| 740 |
/**
|
| 741 |
* <p>
|
| 742 |
* Sets as envelope and adjusted envelope of this view port, the previous.
|
| 743 |
* Recalculating its parameters.
|
| 744 |
* </p>
|
| 745 |
*
|
| 746 |
* @see #getExtents()
|
| 747 |
* @see #calculateAffineTransform()
|
| 748 |
*/
|
| 749 |
public void setPreviousEnvelope() { |
| 750 |
this.updateDrawVersion();
|
| 751 |
extent = extents.removePrev(); |
| 752 |
|
| 753 |
// Calcula la transformaci�n af�n
|
| 754 |
calculateAffineTransform(); |
| 755 |
|
| 756 |
// Lanzamos los eventos de extent cambiado
|
| 757 |
callExtentChanged(getAdjustedExtent()); |
| 758 |
} |
| 759 |
|
| 760 |
/**
|
| 761 |
* <p>
|
| 762 |
* Gets the area selected by user using some tool.
|
| 763 |
* </p>
|
| 764 |
*
|
| 765 |
* <p>
|
| 766 |
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
| 767 |
* out</i> tools, but also zooming to a selected feature or shape) the
|
| 768 |
* extent that covers that area is the value returned by this method. It is
|
| 769 |
* not the actual area shown because it doesn't care about the aspect ratio
|
| 770 |
* of the image size of the view. However, any part of the real world
|
| 771 |
* contained in this extent is shown in the view.
|
| 772 |
* </p>
|
| 773 |
*
|
| 774 |
* <p>
|
| 775 |
* If you are looking for the complete extent currently shown, you must use
|
| 776 |
* the {@linkplain #getAdjustedExtent()} method.
|
| 777 |
* </p>
|
| 778 |
*
|
| 779 |
* @return the current extent
|
| 780 |
*
|
| 781 |
* @see #setEnvelope(Envelope)
|
| 782 |
* @see #getAdjustedExtent()
|
| 783 |
* @see #setPreviousExtent()
|
| 784 |
* @see #getExtents()
|
| 785 |
*
|
| 786 |
* @deprecated use {@link ViewPort#getEnvelope()}
|
| 787 |
*/
|
| 788 |
public Rectangle2D getExtent() { |
| 789 |
return extent;
|
| 790 |
} |
| 791 |
|
| 792 |
/**
|
| 793 |
* <p>
|
| 794 |
* Gets the envelope selected by user using some tool.
|
| 795 |
* </p>
|
| 796 |
*
|
| 797 |
* <p>
|
| 798 |
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
| 799 |
* out</i> tools, but also zooming to a selected feature or shape) the
|
| 800 |
* envelope that covers that area is the value returned by this method. It
|
| 801 |
* is not the actual envelope shown because it doesn't care about the aspect
|
| 802 |
* ratio of the image size of the view. However, any part of the real world
|
| 803 |
* contained in this envelope is shown in the view.
|
| 804 |
* </p>
|
| 805 |
*
|
| 806 |
* <p>
|
| 807 |
* If you are looking for the complete extent currently shown, you must use
|
| 808 |
* the {@linkplain #getAdjustedEnvelope()} method.
|
| 809 |
* </p>
|
| 810 |
*
|
| 811 |
* @return the current envelope
|
| 812 |
*
|
| 813 |
* @see #setEnvelope(Envelope)
|
| 814 |
* @see #getAdjustedEnvelope()
|
| 815 |
* @see #setPreviousEnvelope()
|
| 816 |
* @see #getEnvelopes()
|
| 817 |
*/
|
| 818 |
public Envelope getEnvelope() {
|
| 819 |
try {
|
| 820 |
return geomManager.createEnvelope(extent.getMinX(), extent
|
| 821 |
.getMinY(), extent.getMaxX(), extent.getMaxY(), |
| 822 |
SUBTYPES.GEOM2D); |
| 823 |
// This class has to use Envelope instead of Rectangle2D. This catch
|
| 824 |
// will disappear
|
| 825 |
} catch (CreateEnvelopeException e) {
|
| 826 |
logger.error("Error creating the envelope");
|
| 827 |
} |
| 828 |
return null; |
| 829 |
} |
| 830 |
|
| 831 |
/**
|
| 832 |
* <p>
|
| 833 |
* Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
| 834 |
* <ul>
|
| 835 |
* <li>Stores the previous extent.
|
| 836 |
* <li>Calculates the new extent using <code>r</code>:
|
| 837 |
*
|
| 838 |
* <pre>
|
| 839 |
* extent = new Rectangle2D.Double(r.getMinX() - 0.1, r.getMinY() - 0.1, r
|
| 840 |
* .getWidth() + 0.2, r.getHeight() + 0.2);
|
| 841 |
* </pre>
|
| 842 |
*
|
| 843 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new
|
| 844 |
* scale, adjusted extent, affine transformation between map and screen
|
| 845 |
* coordinates, the real world coordinates equivalent to 1 pixel, and the
|
| 846 |
* real world coordinates equivalent to 3 pixels.
|
| 847 |
* <li>Notifies all {@link ViewPortListener ViewPortListener} registered
|
| 848 |
* that the extent has changed.
|
| 849 |
* </ul>
|
| 850 |
* </p>
|
| 851 |
*
|
| 852 |
* @param r
|
| 853 |
* the new extent
|
| 854 |
*
|
| 855 |
* @see #getExtent()
|
| 856 |
* @see #getExtents()
|
| 857 |
* @see #calculateAffineTransform()
|
| 858 |
* @see #setPreviousExtent()
|
| 859 |
*/
|
| 860 |
public void setEnvelope(Envelope r) { |
| 861 |
Rectangle2D newExtent = null; |
| 862 |
// Esto comprueba que el extent no es de anchura o altura = "0"
|
| 863 |
// y si es as� lo redimensiona.
|
| 864 |
if (r != null) { |
| 865 |
if ((r.getMaximum(0) - r.getMinimum(0) == 0) |
| 866 |
|| (r.getMaximum(1) - r.getMinimum(1) == 0)) { |
| 867 |
newExtent = new Rectangle2D.Double(r.getMinimum(0) - 0.1, r |
| 868 |
.getMinimum(1) - 0.1, r.getMaximum(0) - r.getMinimum(0) |
| 869 |
+ 0.2, r.getMaximum(1) - r.getMinimum(1) + 0.2); |
| 870 |
} else {
|
| 871 |
newExtent = new Rectangle2D.Double(r.getMinimum(0), r |
| 872 |
.getMinimum(1), Math.abs(r.getMaximum(0) |
| 873 |
- r.getMinimum(0)), Math.abs(r.getMaximum(1) |
| 874 |
- r.getMinimum(1)));
|
| 875 |
} |
| 876 |
} |
| 877 |
|
| 878 |
if (this.extent != null && this.extent.equals(newExtent)) { |
| 879 |
return;
|
| 880 |
} |
| 881 |
if (extent != null) { |
| 882 |
extents.put(extent); |
| 883 |
} |
| 884 |
this.updateDrawVersion();
|
| 885 |
this.extent = newExtent;
|
| 886 |
|
| 887 |
// Calcula la transformaci�n af�n
|
| 888 |
calculateAffineTransform(); |
| 889 |
|
| 890 |
// Lanzamos los eventos de extent cambiado
|
| 891 |
callExtentChanged(getAdjustedExtent()); |
| 892 |
} |
| 893 |
|
| 894 |
/**
|
| 895 |
* <p>
|
| 896 |
* Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
| 897 |
* <ul>
|
| 898 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new
|
| 899 |
* scale, adjusted extent, affine transformation between map and screen
|
| 900 |
* coordinates, the real world coordinates equivalent to 1 pixel, and the
|
| 901 |
* real world coordinates equivalent to 3 pixels.
|
| 902 |
* <li>Notifies to all {@link ViewPortListener ViewPortListener} registered
|
| 903 |
* that the extent has changed.
|
| 904 |
* </ul>
|
| 905 |
* </p>
|
| 906 |
*
|
| 907 |
* @see #setEnvelope(Envelope)
|
| 908 |
* @see #calculateAffineTransform()
|
| 909 |
*/
|
| 910 |
public void refreshExtent() { |
| 911 |
// this.scale = scale;
|
| 912 |
|
| 913 |
// Calcula la transformaci�n af�n
|
| 914 |
calculateAffineTransform(); |
| 915 |
|
| 916 |
// Lanzamos los eventos de extent cambiado
|
| 917 |
callExtentChanged(getAdjustedExtent()); |
| 918 |
} |
| 919 |
|
| 920 |
/**
|
| 921 |
* <p>
|
| 922 |
* Calculates and returns using the current projection of this view port,
|
| 923 |
* the scale that is the extent in <i>screen coordinates</i> from the image
|
| 924 |
* in <i>map coordinates</i>.
|
| 925 |
* </p>
|
| 926 |
*
|
| 927 |
* @return the scale <i>extent / image size</i> projected by this view port
|
| 928 |
*
|
| 929 |
* @deprecated since 07/09/07, use {@linkplain MapContext#getScaleView()}
|
| 930 |
*/
|
| 931 |
public double getScale() { |
| 932 |
return proj.getScale(extent.getMinX(), extent.getMaxX(),
|
| 933 |
imageSize.width, dpi); |
| 934 |
} |
| 935 |
|
| 936 |
/**
|
| 937 |
* <p>
|
| 938 |
* Affine transformation between <i>map 2D coordinates</i> to <i>screen 2D
|
| 939 |
* coordinates</i> (pixels), preserving the "straightness" and "parallelism"
|
| 940 |
* of the lines.
|
| 941 |
* </p>
|
| 942 |
*
|
| 943 |
* @return the affine transformation
|
| 944 |
*
|
| 945 |
* @see #setAffineTransform(AffineTransform)
|
| 946 |
* @see #calculateAffineTransform()
|
| 947 |
*/
|
| 948 |
public AffineTransform getAffineTransform() { |
| 949 |
return trans;
|
| 950 |
} |
| 951 |
|
| 952 |
/**
|
| 953 |
* <p>
|
| 954 |
* Returns the size of the image projected.
|
| 955 |
* </p>
|
| 956 |
*
|
| 957 |
* @return the image size
|
| 958 |
*
|
| 959 |
* @see #setImageSize(Dimension)
|
| 960 |
* @see #getImageHeight()
|
| 961 |
* @see #getImageWidth()
|
| 962 |
*/
|
| 963 |
public Dimension getImageSize() { |
| 964 |
return imageSize;
|
| 965 |
} |
| 966 |
|
| 967 |
/**
|
| 968 |
* <p>
|
| 969 |
* Sets the size of the image projected, recalculating the parameters of
|
| 970 |
* this view port.
|
| 971 |
* </p>
|
| 972 |
*
|
| 973 |
* @param imageSize
|
| 974 |
* the image size
|
| 975 |
*
|
| 976 |
* @see #getImageSize()
|
| 977 |
* @see #calculateAffineTransform()
|
| 978 |
*/
|
| 979 |
public void setImageSize(Dimension imageSize) { |
| 980 |
|
| 981 |
if (this.imageSize == null || (!this.imageSize.equals(imageSize))) { |
| 982 |
this.updateDrawVersion();
|
| 983 |
this.imageSize = imageSize;
|
| 984 |
calculateAffineTransform(); |
| 985 |
} |
| 986 |
} |
| 987 |
|
| 988 |
/**
|
| 989 |
* <p>
|
| 990 |
* Notifies to all view port listeners registered, that the adjusted extent
|
| 991 |
* of this view port has changed.
|
| 992 |
* </p>
|
| 993 |
*
|
| 994 |
* @param newRect
|
| 995 |
* the new adjusted extend
|
| 996 |
*
|
| 997 |
* @see #refreshExtent()
|
| 998 |
* @see #setEnvelope(Envelope)
|
| 999 |
* @see #setPreviousExtent()
|
| 1000 |
* @see ExtentEvent
|
| 1001 |
* @see ViewPortListener
|
| 1002 |
*/
|
| 1003 |
protected void callExtentChanged(Envelope newRect) { |
| 1004 |
ExtentEvent ev = ExtentEvent.createExtentEvent(newRect); |
| 1005 |
|
| 1006 |
for (int i = 0; i < listeners.size(); i++) { |
| 1007 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
| 1008 |
listener.extentChanged(ev); |
| 1009 |
} |
| 1010 |
} |
| 1011 |
|
| 1012 |
/**
|
| 1013 |
* <p>
|
| 1014 |
* Notifies to all view port listeners registered, that the background color
|
| 1015 |
* of this view port has changed.
|
| 1016 |
* </p>
|
| 1017 |
*
|
| 1018 |
* @param c
|
| 1019 |
* the new background color
|
| 1020 |
*
|
| 1021 |
* @see #setBackColor(Color)
|
| 1022 |
* @see ColorEvent
|
| 1023 |
* @see ViewPortListener
|
| 1024 |
*/
|
| 1025 |
private void callColorChanged(Color c) { |
| 1026 |
ColorEvent ce = ColorEvent.createColorEvent(c); |
| 1027 |
|
| 1028 |
for (int i = 0; i < listeners.size(); i++) { |
| 1029 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
| 1030 |
listener.backColorChanged(ce); |
| 1031 |
} |
| 1032 |
} |
| 1033 |
|
| 1034 |
/**
|
| 1035 |
* <p>
|
| 1036 |
* Notifies to all view port listeners registered, that the projection of
|
| 1037 |
* this view port has changed.
|
| 1038 |
* </p>
|
| 1039 |
*
|
| 1040 |
* @param projection
|
| 1041 |
* the new projection
|
| 1042 |
*
|
| 1043 |
* @see #setProjection(IProjection)
|
| 1044 |
* @see ProjectionEvent
|
| 1045 |
* @see ViewPortListener
|
| 1046 |
*/
|
| 1047 |
private void callProjectionChanged(IProjection projection) { |
| 1048 |
ProjectionEvent ev = ProjectionEvent.createProjectionEvent(projection); |
| 1049 |
|
| 1050 |
for (int i = 0; i < listeners.size(); i++) { |
| 1051 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
| 1052 |
listener.projectionChanged(ev); |
| 1053 |
} |
| 1054 |
} |
| 1055 |
|
| 1056 |
/**
|
| 1057 |
* <p>
|
| 1058 |
* Calculates the affine transformation between the {@link #extent extent}
|
| 1059 |
* in <i>map 2D coordinates</i> to the image area in the screen, in
|
| 1060 |
* <i>screen 2D coordinates</i> (pixels).
|
| 1061 |
* </p>
|
| 1062 |
*
|
| 1063 |
* <p>
|
| 1064 |
* This process recalculates some parameters of this view port:<br>
|
| 1065 |
*
|
| 1066 |
* <ul>
|
| 1067 |
* <li>The new {@link #scale scale} .
|
| 1068 |
* <li>The new {@link #adjustedExtent adjustedExtent} .
|
| 1069 |
* <li>The new {@link #trans trans} .
|
| 1070 |
* <li>The new real world coordinates equivalent to 1 pixel (
|
| 1071 |
* {@link #dist1pixel dist1pixel}) .
|
| 1072 |
* <li>The new real world coordinates equivalent to 3 pixels (
|
| 1073 |
* {@link #dist3pixel dist3pixel}) .
|
| 1074 |
* </ul>
|
| 1075 |
* </p>
|
| 1076 |
*
|
| 1077 |
* @see #getAffineTransform()
|
| 1078 |
* @see #setAffineTransform(AffineTransform)
|
| 1079 |
* @see #refreshExtent()
|
| 1080 |
* @see #setEnvelope(Envelope)
|
| 1081 |
* @see #setImageSize(Dimension)
|
| 1082 |
* @see #setPreviousExtent()
|
| 1083 |
* @see #createFromXML(XMLEntity)
|
| 1084 |
* @see AffineTransform
|
| 1085 |
*/
|
| 1086 |
private void calculateAffineTransform() { |
| 1087 |
if ((imageSize == null) || (extent == null) || (imageSize.width <= 0) |
| 1088 |
|| (imageSize.height <= 0)) {
|
| 1089 |
return;
|
| 1090 |
} |
| 1091 |
|
| 1092 |
AffineTransform escalado = new AffineTransform(); |
| 1093 |
AffineTransform translacion = new AffineTransform(); |
| 1094 |
|
| 1095 |
double escalaX;
|
| 1096 |
double escalaY;
|
| 1097 |
|
| 1098 |
escalaX = imageSize.width / extent.getWidth(); |
| 1099 |
escalaY = imageSize.height / extent.getHeight(); |
| 1100 |
|
| 1101 |
double xCenter = extent.getCenterX();
|
| 1102 |
double yCenter = extent.getCenterY();
|
| 1103 |
double newHeight;
|
| 1104 |
double newWidth;
|
| 1105 |
|
| 1106 |
adjustedExtent = new Rectangle2D.Double(); |
| 1107 |
|
| 1108 |
if (adjustableExtent) {
|
| 1109 |
if (escalaX < escalaY) {
|
| 1110 |
scale = escalaX; |
| 1111 |
newHeight = imageSize.height / scale; |
| 1112 |
adjustedExtent.setRect(xCenter - (extent.getWidth() / 2.0),
|
| 1113 |
yCenter - (newHeight / 2.0), extent.getWidth(),
|
| 1114 |
newHeight); |
| 1115 |
} else {
|
| 1116 |
scale = escalaY; |
| 1117 |
newWidth = imageSize.width / scale; |
| 1118 |
adjustedExtent.setRect(xCenter - (newWidth / 2.0), yCenter
|
| 1119 |
- (extent.getHeight() / 2.0), newWidth, extent
|
| 1120 |
.getHeight()); |
| 1121 |
} |
| 1122 |
escalado.setToScale(scale, -scale); |
| 1123 |
} else { // adjusted is same as extent |
| 1124 |
scale = escalaX; |
| 1125 |
adjustedExtent.setFrame(extent); |
| 1126 |
escalado.setToScale(escalaX, -escalaY); |
| 1127 |
} |
| 1128 |
Envelope env = getAdjustedExtent(); |
| 1129 |
if (env == null) { |
| 1130 |
return;
|
| 1131 |
} |
| 1132 |
translacion.setToTranslation(-env.getMinimum(0), -env.getMinimum(1) |
| 1133 |
- getAdjustedExtent().getLength(1));
|
| 1134 |
|
| 1135 |
AffineTransform offsetTrans = new AffineTransform(); |
| 1136 |
offsetTrans.setToTranslation(offset.getX(), offset.getY()); |
| 1137 |
|
| 1138 |
trans.setToIdentity(); |
| 1139 |
trans.concatenate(offsetTrans); |
| 1140 |
trans.concatenate(escalado); |
| 1141 |
|
| 1142 |
trans.concatenate(translacion); |
| 1143 |
|
| 1144 |
// Calculamos las distancias de 1 pixel y 3 pixel con esa
|
| 1145 |
// transformaci�n
|
| 1146 |
// de coordenadas, de forma que est�n precalculadas para cuando las
|
| 1147 |
// necesitemos
|
| 1148 |
AffineTransform at;
|
| 1149 |
|
| 1150 |
try {
|
| 1151 |
at = trans.createInverse(); |
| 1152 |
|
| 1153 |
java.awt.Point pPixel = new java.awt.Point(1, 1); |
| 1154 |
Point2D.Float pProv = new Point2D.Float(); |
| 1155 |
at.deltaTransform(pPixel, pProv); |
| 1156 |
|
| 1157 |
dist1pixel = pProv.x; |
| 1158 |
dist3pixel = 3 * pProv.x;
|
| 1159 |
} catch (NoninvertibleTransformException e) { |
| 1160 |
System.err.println("transformada afin = " + trans.toString()); |
| 1161 |
System.err.println("extent = " + extent.toString() + " imageSize= " |
| 1162 |
+ imageSize.toString()); |
| 1163 |
throw new RuntimeException("Non invertible transform Exception", e); |
| 1164 |
} |
| 1165 |
} |
| 1166 |
|
| 1167 |
/**
|
| 1168 |
* <p>
|
| 1169 |
* Sets the offset.
|
| 1170 |
* </p>
|
| 1171 |
* <p>
|
| 1172 |
* The offset is the position where start drawing the map.
|
| 1173 |
* </p>
|
| 1174 |
*
|
| 1175 |
* @param p
|
| 1176 |
* 2D point that represents the offset in pixels
|
| 1177 |
*
|
| 1178 |
* @see #getOffset()
|
| 1179 |
*/
|
| 1180 |
public void setOffset(Point2D p) { |
| 1181 |
if (!offset.equals(p)) {
|
| 1182 |
this.updateDrawVersion();
|
| 1183 |
offset = p; |
| 1184 |
} |
| 1185 |
} |
| 1186 |
|
| 1187 |
/**
|
| 1188 |
* <p>
|
| 1189 |
* Gets the offset.
|
| 1190 |
* </p>
|
| 1191 |
* <p>
|
| 1192 |
* The offset is the position where start drawing the map.
|
| 1193 |
* </p>
|
| 1194 |
*
|
| 1195 |
* @return 2D point that represents the offset in pixels
|
| 1196 |
*
|
| 1197 |
* @see #setOffset(Point2D)
|
| 1198 |
*/
|
| 1199 |
public Point2D getOffset() { |
| 1200 |
return offset;
|
| 1201 |
} |
| 1202 |
|
| 1203 |
/**
|
| 1204 |
* <p>
|
| 1205 |
* Sets the background color.
|
| 1206 |
* </p>
|
| 1207 |
*
|
| 1208 |
* @param c
|
| 1209 |
* the new background color
|
| 1210 |
*
|
| 1211 |
* @see #getBackColor()
|
| 1212 |
*/
|
| 1213 |
public void setBackColor(Color c) { |
| 1214 |
if (!c.equals(this.backColor)) { |
| 1215 |
this.updateDrawVersion();
|
| 1216 |
backColor = c; |
| 1217 |
callColorChanged(backColor); |
| 1218 |
} |
| 1219 |
} |
| 1220 |
|
| 1221 |
/**
|
| 1222 |
* <p>
|
| 1223 |
* Gets the background color.
|
| 1224 |
* </p>
|
| 1225 |
*
|
| 1226 |
* @return the background color of the view
|
| 1227 |
*
|
| 1228 |
* @see #setBackColor(Color)
|
| 1229 |
*/
|
| 1230 |
public Color getBackColor() { |
| 1231 |
return backColor;
|
| 1232 |
} |
| 1233 |
|
| 1234 |
/**
|
| 1235 |
* <p>
|
| 1236 |
* Returns the extent currently covered by the view adjusted (scaled) to the
|
| 1237 |
* image size aspect.
|
| 1238 |
* </p>
|
| 1239 |
*
|
| 1240 |
* @return extent of the view adjusted to the image size aspect
|
| 1241 |
*
|
| 1242 |
* @see #setAdjustable(boolean)
|
| 1243 |
* @deprecated use {@link ViewPort#getAdjustedEnvelope()} instead
|
| 1244 |
*/
|
| 1245 |
public Envelope getAdjustedExtent() {
|
| 1246 |
return getAdjustedEnvelope();
|
| 1247 |
} |
| 1248 |
|
| 1249 |
/**
|
| 1250 |
* <p>
|
| 1251 |
* Returns the envelope currently covered by the view adjusted (scaled) to
|
| 1252 |
* the image size aspect.
|
| 1253 |
* </p>
|
| 1254 |
*
|
| 1255 |
* @return envelope of the view adjusted to the image size aspect
|
| 1256 |
*
|
| 1257 |
* @see #setAdjustable(boolean)
|
| 1258 |
*/
|
| 1259 |
public Envelope getAdjustedEnvelope() {
|
| 1260 |
if (cliprect != null) { |
| 1261 |
Rectangle2D r = adjustedExtent.createIntersection(cliprect);
|
| 1262 |
try {
|
| 1263 |
return geomManager.createEnvelope(r.getX(), r.getY(), r
|
| 1264 |
.getMaxX(), r.getMaxY(), SUBTYPES.GEOM2D); |
| 1265 |
} catch (CreateEnvelopeException e) {
|
| 1266 |
e.printStackTrace(); |
| 1267 |
logger.error("Error adjusting the extent", e);
|
| 1268 |
} |
| 1269 |
} |
| 1270 |
if (adjustedExtent != null) { |
| 1271 |
try {
|
| 1272 |
return geomManager.createEnvelope(adjustedExtent.getX(),
|
| 1273 |
adjustedExtent.getY(), adjustedExtent.getMaxX(), |
| 1274 |
adjustedExtent.getMaxY(), SUBTYPES.GEOM2D); |
| 1275 |
} catch (CreateEnvelopeException e) {
|
| 1276 |
e.printStackTrace(); |
| 1277 |
logger.error("Error adjusting the extent", e);
|
| 1278 |
} |
| 1279 |
} |
| 1280 |
return null; |
| 1281 |
} |
| 1282 |
|
| 1283 |
/**
|
| 1284 |
* <p>
|
| 1285 |
* Returns the measurement unit of this view port used for measuring
|
| 1286 |
* distances and displaying information.
|
| 1287 |
* </p>
|
| 1288 |
*
|
| 1289 |
* @return the measurement unit of this view used for measuring distances
|
| 1290 |
* and displaying information
|
| 1291 |
*
|
| 1292 |
* @see #setDistanceUnits(int)
|
| 1293 |
*/
|
| 1294 |
public int getDistanceUnits() { |
| 1295 |
return distanceUnits;
|
| 1296 |
} |
| 1297 |
|
| 1298 |
/**
|
| 1299 |
* <p>
|
| 1300 |
* Returns the measurement unit of this view port used for measuring areas
|
| 1301 |
* and displaying information.
|
| 1302 |
* </p>
|
| 1303 |
*
|
| 1304 |
* @return the measurement unit of this view used for measuring areas and
|
| 1305 |
* displaying information
|
| 1306 |
*
|
| 1307 |
* @see #setDistanceUnits(int)
|
| 1308 |
*/
|
| 1309 |
public int getDistanceArea() { |
| 1310 |
return distanceArea;
|
| 1311 |
} |
| 1312 |
|
| 1313 |
/**
|
| 1314 |
* <p>
|
| 1315 |
* Sets the measurement unit of this view port used for measuring distances
|
| 1316 |
* and displaying information.
|
| 1317 |
* </p>
|
| 1318 |
*
|
| 1319 |
* @param distanceUnits
|
| 1320 |
* the measurement unit of this view used for measuring distances
|
| 1321 |
* and displaying information
|
| 1322 |
*
|
| 1323 |
* @see #getDistanceUnits()
|
| 1324 |
*/
|
| 1325 |
public void setDistanceUnits(int distanceUnits) { |
| 1326 |
this.distanceUnits = distanceUnits;
|
| 1327 |
} |
| 1328 |
|
| 1329 |
/**
|
| 1330 |
* <p>
|
| 1331 |
* Sets the measurement unit of this view port used for measuring areas and
|
| 1332 |
* displaying information.
|
| 1333 |
* </p>
|
| 1334 |
*
|
| 1335 |
* @param distanceUnits
|
| 1336 |
* the measurement unit of this view used for measuring areas and
|
| 1337 |
* displaying information
|
| 1338 |
*
|
| 1339 |
* @see #getDistanceUnits()
|
| 1340 |
*/
|
| 1341 |
public void setDistanceArea(int distanceArea) { |
| 1342 |
this.distanceArea = distanceArea;
|
| 1343 |
} |
| 1344 |
|
| 1345 |
/**
|
| 1346 |
* <p>
|
| 1347 |
* Gets the measurement unit used by this view port for the map.
|
| 1348 |
* </p>
|
| 1349 |
*
|
| 1350 |
* @return Returns the current map measure unit
|
| 1351 |
*
|
| 1352 |
* @see #setMapUnits(int)
|
| 1353 |
*/
|
| 1354 |
public int getMapUnits() { |
| 1355 |
return mapUnits;
|
| 1356 |
} |
| 1357 |
|
| 1358 |
/**
|
| 1359 |
* <p>
|
| 1360 |
* Sets the measurement unit used by this view port for the map.
|
| 1361 |
* </p>
|
| 1362 |
*
|
| 1363 |
* @param mapUnits
|
| 1364 |
* the new map measure unit
|
| 1365 |
*
|
| 1366 |
* @see #getMapUnits()
|
| 1367 |
*/
|
| 1368 |
public void setMapUnits(int mapUnits) { |
| 1369 |
this.mapUnits = mapUnits;
|
| 1370 |
} |
| 1371 |
|
| 1372 |
/**
|
| 1373 |
* <p>
|
| 1374 |
* Gets the width in <i>screen coordinates</i> of the rectangle where the
|
| 1375 |
* image is displayed.
|
| 1376 |
* </p>
|
| 1377 |
* <p>
|
| 1378 |
* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
| 1379 |
*
|
| 1380 |
* <ul>
|
| 1381 |
* <li>The new {@link #scale scale} .
|
| 1382 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
| 1383 |
* <li>The new {@link #trans trans} .
|
| 1384 |
* <li>The new real world coordinates equivalent to 1 pixel (
|
| 1385 |
* {@link #dist1pixel dist1pixel}) .
|
| 1386 |
* <li>The new real world coordinates equivalent to 3 pixels (
|
| 1387 |
* {@link #dist3pixel dist3pixel}) .
|
| 1388 |
* </ul>
|
| 1389 |
* </p>
|
| 1390 |
*
|
| 1391 |
* @see #getImageHeight()
|
| 1392 |
* @see #getImageSize()
|
| 1393 |
* @see #setImageSize(Dimension)
|
| 1394 |
*/
|
| 1395 |
public int getImageWidth() { |
| 1396 |
return imageSize.width;
|
| 1397 |
} |
| 1398 |
|
| 1399 |
/**
|
| 1400 |
* <p>
|
| 1401 |
* Gets the height in <i>screen coordinates</i> of the rectangle where the
|
| 1402 |
* image is displayed.
|
| 1403 |
* </p>
|
| 1404 |
* <p>
|
| 1405 |
* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
| 1406 |
*
|
| 1407 |
* <ul>
|
| 1408 |
* <li>The new {@link #scale scale} .
|
| 1409 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
| 1410 |
* <li>The new {@link #trans trans} .
|
| 1411 |
* <li>The new real world coordinates equivalent to 1 pixel (
|
| 1412 |
* {@link #dist1pixel dist1pixel}) .
|
| 1413 |
* <li>The new real world coordinates equivalent to 3 pixels (
|
| 1414 |
* {@link #dist3pixel dist3pixel}) .
|
| 1415 |
* </ul>
|
| 1416 |
* </p>
|
| 1417 |
*
|
| 1418 |
* @see #getImageWidth()
|
| 1419 |
* @see #getImageSize()
|
| 1420 |
* @see #setImageSize(Dimension)
|
| 1421 |
*/
|
| 1422 |
public int getImageHeight() { |
| 1423 |
return imageSize.height;
|
| 1424 |
} |
| 1425 |
|
| 1426 |
/**
|
| 1427 |
* <p>
|
| 1428 |
* Gets the distance in <i>world coordinates</i> equivalent to 1 pixel in
|
| 1429 |
* the view with the current extent.
|
| 1430 |
* </p>
|
| 1431 |
*
|
| 1432 |
* @return the distance
|
| 1433 |
*
|
| 1434 |
* @see #setDist1pixel(double)
|
| 1435 |
*/
|
| 1436 |
public double getDist1pixel() { |
| 1437 |
return dist1pixel;
|
| 1438 |
} |
| 1439 |
|
| 1440 |
/**
|
| 1441 |
* <p>
|
| 1442 |
* Sets the distance in <i>world coordinates</i> equivalent to 1 pixel in
|
| 1443 |
* the view with the current extent.
|
| 1444 |
* </p>
|
| 1445 |
*
|
| 1446 |
* @param dist1pixel
|
| 1447 |
* the distance
|
| 1448 |
*
|
| 1449 |
* @see #getDist1pixel()
|
| 1450 |
*/
|
| 1451 |
public void setDist1pixel(double dist1pixel) { |
| 1452 |
if (dist1pixel == this.dist1pixel) { |
| 1453 |
return;
|
| 1454 |
} |
| 1455 |
this.updateDrawVersion();
|
| 1456 |
this.dist1pixel = dist1pixel;
|
| 1457 |
} |
| 1458 |
|
| 1459 |
/**
|
| 1460 |
* <p>
|
| 1461 |
* Gets the distance in <i>world coordinates</i> equivalent to 3 pixels in
|
| 1462 |
* the view with the current extent.
|
| 1463 |
* </p>
|
| 1464 |
*
|
| 1465 |
* @return the distance
|
| 1466 |
*
|
| 1467 |
* @see #setDist3pixel(double)
|
| 1468 |
*/
|
| 1469 |
public double getDist3pixel() { |
| 1470 |
return dist3pixel;
|
| 1471 |
} |
| 1472 |
|
| 1473 |
/**
|
| 1474 |
* <p>
|
| 1475 |
* Sets the distance in <i>world coordinates</i> equivalent to 3 pixels in
|
| 1476 |
* the view with the current extent.
|
| 1477 |
* </p>
|
| 1478 |
*
|
| 1479 |
* @param dist3pixel
|
| 1480 |
* the distance
|
| 1481 |
*
|
| 1482 |
* @see #getDist3pixel()
|
| 1483 |
*/
|
| 1484 |
public void setDist3pixel(double dist3pixel) { |
| 1485 |
if (this.dist3pixel == dist3pixel) { |
| 1486 |
return;
|
| 1487 |
} |
| 1488 |
this.updateDrawVersion();
|
| 1489 |
this.dist3pixel = dist3pixel;
|
| 1490 |
} |
| 1491 |
|
| 1492 |
/**
|
| 1493 |
* <p>
|
| 1494 |
* Returns the last previous extents of this view port.
|
| 1495 |
* </p>
|
| 1496 |
*
|
| 1497 |
* @return the last previous extents of this view port
|
| 1498 |
*
|
| 1499 |
* @see #setPreviousExtent()
|
| 1500 |
* @deprecated use {@link ViewPort#getEnvelopes()}
|
| 1501 |
*/
|
| 1502 |
public ExtentHistory getExtents() {
|
| 1503 |
return getEnvelopes();
|
| 1504 |
} |
| 1505 |
|
| 1506 |
/**
|
| 1507 |
* <p>
|
| 1508 |
* Returns the last previous extents of this view port.
|
| 1509 |
* </p>
|
| 1510 |
*
|
| 1511 |
* @return the last previous extents of this view port
|
| 1512 |
*
|
| 1513 |
* @see #setPreviousExtent()
|
| 1514 |
*/
|
| 1515 |
public ExtentHistory getEnvelopes() {
|
| 1516 |
return extents;
|
| 1517 |
} |
| 1518 |
|
| 1519 |
/**
|
| 1520 |
* <p>
|
| 1521 |
* Gets the projection used in this view port.
|
| 1522 |
* </p>
|
| 1523 |
*
|
| 1524 |
* @return projection used in this view port
|
| 1525 |
*
|
| 1526 |
* @see #setProjection(IProjection)
|
| 1527 |
*/
|
| 1528 |
public IProjection getProjection() {
|
| 1529 |
return proj;
|
| 1530 |
} |
| 1531 |
|
| 1532 |
/**
|
| 1533 |
* <p>
|
| 1534 |
* Sets the projection to this view port.
|
| 1535 |
* </p>
|
| 1536 |
*
|
| 1537 |
* @param proj
|
| 1538 |
* the new projection
|
| 1539 |
*
|
| 1540 |
* @see #getProjection()
|
| 1541 |
*/
|
| 1542 |
public void setProjection(IProjection proj) { |
| 1543 |
if (this.proj == null || !this.proj.getAbrev().equals(proj.getAbrev())) { |
| 1544 |
this.updateDrawVersion();
|
| 1545 |
this.proj = proj;
|
| 1546 |
callProjectionChanged(proj); |
| 1547 |
} |
| 1548 |
} |
| 1549 |
|
| 1550 |
// -----------------------------------------------------------------------------------------------------------
|
| 1551 |
// NOTA PARA DESARROLLADORES SOBRE EL M�TODO
|
| 1552 |
// "public void setAffineTransform(AffineTransform at)"
|
| 1553 |
// ==============================================================================================
|
| 1554 |
// Only used for print, should be removed, redefining the {@link
|
| 1555 |
// RasterAdapter RasterAdapter} interface,
|
| 1556 |
// allowing it to receive a {@link ViewPortData ViewPortData} .
|
| 1557 |
// -----------------------------------------------------------------------------------------------------------
|
| 1558 |
|
| 1559 |
/**
|
| 1560 |
* <p>
|
| 1561 |
* Sets only the affine transform to this view port, without updating
|
| 1562 |
* dependent attributes.
|
| 1563 |
* </p>
|
| 1564 |
* <p>
|
| 1565 |
* <b><i>This method could be problematic!</i></b>
|
| 1566 |
* </p>
|
| 1567 |
*
|
| 1568 |
* @param at
|
| 1569 |
* the affine transform to set
|
| 1570 |
*
|
| 1571 |
* @see #getAffineTransform()
|
| 1572 |
* @see #calculateAffineTransform()
|
| 1573 |
*/
|
| 1574 |
public void setAffineTransform(AffineTransform at) { |
| 1575 |
this.trans = at;
|
| 1576 |
} |
| 1577 |
|
| 1578 |
/**
|
| 1579 |
* <p>
|
| 1580 |
* Returns an XML entity that represents this view port instance:<br>
|
| 1581 |
* <ul>
|
| 1582 |
* <li>Properties:
|
| 1583 |
* <ul>
|
| 1584 |
* <li><i>className</i>: name of this class.
|
| 1585 |
* <li>If defined, the adjusted extent:
|
| 1586 |
* <ul>
|
| 1587 |
* <li><i>adjustedExtentX</i>: X coordinate of the adjusted extent.
|
| 1588 |
* <li><i>adjustedExtentY</i>: Y coordinate of the adjusted extent.
|
| 1589 |
* <li><i>adjustedExtentW</i>: width of the adjusted extent.
|
| 1590 |
* <li><i>adjustedExtentH</i>: height of the adjusted extent.
|
| 1591 |
* </ul>
|
| 1592 |
* <li>If defined, the background color:
|
| 1593 |
* <ul>
|
| 1594 |
* <li><i>backColor</i>: background color.
|
| 1595 |
* </ul>
|
| 1596 |
* <li>If defined, the clip:
|
| 1597 |
* <ul>
|
| 1598 |
* <li><i>clipX</i>: X coordinate of the clip.
|
| 1599 |
* <li><i>clipY</i>: Y coordinate of clip.
|
| 1600 |
* <li><i>clipW</i>: width of the clip.
|
| 1601 |
* <li><i>clipH</i>: height of the clip.
|
| 1602 |
* </ul>
|
| 1603 |
* <li><i>dist1pixel</i>: the distance in world coordinates equivalent to 1
|
| 1604 |
* pixel in the view.
|
| 1605 |
* <li><i>dist3pixel</i>: the distance in world coordinates equivalent to 3
|
| 1606 |
* pixels in the view.
|
| 1607 |
* <li><i>distanceUnits</i>: the distance measurement unit.
|
| 1608 |
* <li>If defined, the extent:
|
| 1609 |
* <ul>
|
| 1610 |
* <li><i>extentX</i>: X coordinate of the extent.
|
| 1611 |
* <li><i>extentY</i>: Y coordinate of the extent.
|
| 1612 |
* <li><i>extentW</i>: width of the extent.
|
| 1613 |
* <li><i>extentH</i>: height of the extent.
|
| 1614 |
* </ul>
|
| 1615 |
* <li><i>mapUnits</i>: the map measurement unit.
|
| 1616 |
* <li><i>offsetX</i>: X coordinate of the offset.
|
| 1617 |
* <li><i>offsetY</i>: Y coordinate of the offset.
|
| 1618 |
* <li>If defined, the projection:
|
| 1619 |
* <ul>
|
| 1620 |
* <li>If its defined, the projection:
|
| 1621 |
* <ul>
|
| 1622 |
* <li><i>proj</i>: the projection.</li>
|
| 1623 |
* </ul>
|
| 1624 |
* </ul>
|
| 1625 |
* <li><i>scale</i>: ratio between the size of <code>imageSize</code> and
|
| 1626 |
* <code>extent</code>.
|
| 1627 |
* </ul>
|
| 1628 |
* <li>Child branches:
|
| 1629 |
* <ul>
|
| 1630 |
* <li>XML entity of the internal {@link ExtentHistory ExtentHistory} .
|
| 1631 |
* </ul>
|
| 1632 |
* </ul>
|
| 1633 |
*
|
| 1634 |
* @return the XML entity
|
| 1635 |
*
|
| 1636 |
* @see #createFromXML(XMLEntity)
|
| 1637 |
*/
|
| 1638 |
public XMLEntity getXMLEntity() {
|
| 1639 |
XMLEntity xml = new XMLEntity();
|
| 1640 |
xml.putProperty("className", this.getClass().getName()); |
| 1641 |
|
| 1642 |
if (adjustedExtent != null) { |
| 1643 |
xml.putProperty("adjustedExtentX", adjustedExtent.getX());
|
| 1644 |
xml.putProperty("adjustedExtentY", adjustedExtent.getY());
|
| 1645 |
xml.putProperty("adjustedExtentW", adjustedExtent.getWidth());
|
| 1646 |
xml.putProperty("adjustedExtentH", adjustedExtent.getHeight());
|
| 1647 |
} |
| 1648 |
|
| 1649 |
if (backColor != null) { |
| 1650 |
xml.putProperty("backColor", StringUtilities
|
| 1651 |
.color2String(backColor)); |
| 1652 |
} |
| 1653 |
|
| 1654 |
if (clip != null) { |
| 1655 |
xml.putProperty("clipX", clip.getX());
|
| 1656 |
xml.putProperty("clipY", clip.getY());
|
| 1657 |
xml.putProperty("clipW", clip.getWidth());
|
| 1658 |
xml.putProperty("clipH", clip.getHeight());
|
| 1659 |
} |
| 1660 |
|
| 1661 |
xml.putProperty("dist1pixel", dist1pixel);
|
| 1662 |
xml.putProperty("dist3pixel", dist3pixel);
|
| 1663 |
xml.putProperty("distanceUnits", distanceUnits);
|
| 1664 |
|
| 1665 |
if (extent != null) { |
| 1666 |
xml.putProperty("extentX", extent.getX());
|
| 1667 |
xml.putProperty("extentY", extent.getY());
|
| 1668 |
xml.putProperty("extentW", extent.getWidth());
|
| 1669 |
xml.putProperty("extentH", extent.getHeight());
|
| 1670 |
} |
| 1671 |
|
| 1672 |
xml.addChild(extents.getXMLEntity()); |
| 1673 |
xml.putProperty("mapUnits", mapUnits);
|
| 1674 |
xml.putProperty("offsetX", offset.getX());
|
| 1675 |
xml.putProperty("offsetY", offset.getY());
|
| 1676 |
|
| 1677 |
if (proj != null) { |
| 1678 |
xml.putProperty("proj", proj.getAbrev());
|
| 1679 |
} |
| 1680 |
|
| 1681 |
xml.putProperty("scale", scale);
|
| 1682 |
|
| 1683 |
return xml;
|
| 1684 |
} |
| 1685 |
|
| 1686 |
/**
|
| 1687 |
* <p>
|
| 1688 |
* Creates a new <code>ViewPort</code> from an XML entity.
|
| 1689 |
* </p>
|
| 1690 |
*
|
| 1691 |
* @param xml
|
| 1692 |
* an XML entity
|
| 1693 |
*
|
| 1694 |
* @return the new <code>ViewPort</code>
|
| 1695 |
*
|
| 1696 |
* @see #getXMLEntity()
|
| 1697 |
*/
|
| 1698 |
public static ViewPort createFromXML(XMLEntity xml) { |
| 1699 |
ViewPort vp = new ViewPort(null); |
| 1700 |
|
| 1701 |
if (xml.contains("adjustedExtentX")) { |
| 1702 |
vp.adjustedExtent = new Rectangle2D.Double(xml |
| 1703 |
.getDoubleProperty("adjustedExtentX"), xml
|
| 1704 |
.getDoubleProperty("adjustedExtentY"), xml
|
| 1705 |
.getDoubleProperty("adjustedExtentW"), xml
|
| 1706 |
.getDoubleProperty("adjustedExtentH"));
|
| 1707 |
} |
| 1708 |
|
| 1709 |
if (xml.contains("backColor")) { |
| 1710 |
vp.setBackColor(StringUtilities.string2Color(xml |
| 1711 |
.getStringProperty("backColor")));
|
| 1712 |
} else {
|
| 1713 |
vp.setBackColor(Color.white);
|
| 1714 |
} |
| 1715 |
|
| 1716 |
if (xml.contains("clipX")) { |
| 1717 |
vp.clip = new Rectangle2D.Double(xml.getDoubleProperty("clipX"), |
| 1718 |
xml.getDoubleProperty("clipY"), xml
|
| 1719 |
.getDoubleProperty("clipW"), xml
|
| 1720 |
.getDoubleProperty("clipH"));
|
| 1721 |
} |
| 1722 |
|
| 1723 |
vp.setDist1pixel(xml.getDoubleProperty("dist1pixel"));
|
| 1724 |
vp.setDist3pixel(xml.getDoubleProperty("dist3pixel"));
|
| 1725 |
vp.setDistanceUnits(xml.getIntProperty("distanceUnits"));
|
| 1726 |
if (xml.contains("distanceArea")) { |
| 1727 |
vp.setDistanceArea(xml.getIntProperty("distanceArea"));
|
| 1728 |
} else {
|
| 1729 |
vp.setDistanceArea(xml.getIntProperty("distanceUnits"));
|
| 1730 |
} |
| 1731 |
vp.extents = ExtentHistory.createFromXML(xml.getChild(0));
|
| 1732 |
|
| 1733 |
if (xml.contains("extentX")) { |
| 1734 |
double x = xml.getDoubleProperty("extentX"); |
| 1735 |
double y = xml.getDoubleProperty("extentY"); |
| 1736 |
try {
|
| 1737 |
vp.setEnvelope(geomManager.createEnvelope(x, y, x |
| 1738 |
+ xml.getDoubleProperty("extentW"), y
|
| 1739 |
+ xml.getDoubleProperty("extentH"), SUBTYPES.GEOM2D));
|
| 1740 |
} catch (CreateEnvelopeException e) {
|
| 1741 |
e.printStackTrace(); |
| 1742 |
logger.error("Error setting the extent", e);
|
| 1743 |
} |
| 1744 |
|
| 1745 |
// Calcula la transformaci�n af�n
|
| 1746 |
vp.calculateAffineTransform(); |
| 1747 |
|
| 1748 |
// Lanzamos los eventos de extent cambiado
|
| 1749 |
// vp.callExtentListeners(vp.adjustedExtent);
|
| 1750 |
} |
| 1751 |
|
| 1752 |
vp.setMapUnits(xml.getIntProperty("mapUnits"));
|
| 1753 |
vp.setOffset(new Point2D.Double(xml.getDoubleProperty("offsetX"), xml |
| 1754 |
.getDoubleProperty("offsetY")));
|
| 1755 |
|
| 1756 |
if (xml.contains("proj")) { |
| 1757 |
vp.proj = CRSFactory.getCRS(xml.getStringProperty("proj"));
|
| 1758 |
} |
| 1759 |
|
| 1760 |
// vp.setScale(xml.getDoubleProperty("scale"));
|
| 1761 |
vp.refreshExtent(); |
| 1762 |
return vp;
|
| 1763 |
} |
| 1764 |
|
| 1765 |
/**
|
| 1766 |
* <p>
|
| 1767 |
* Fast clone implementation: creates and returns a clone of this view port
|
| 1768 |
* using XML entities.
|
| 1769 |
* </p>
|
| 1770 |
* <p>
|
| 1771 |
* Isn't a <i>deepclone</i> to avoid unnecessary memory consumption.
|
| 1772 |
* </p>
|
| 1773 |
*
|
| 1774 |
* @return the new view port
|
| 1775 |
*
|
| 1776 |
* @see #createFromXML(XMLEntity)
|
| 1777 |
*/
|
| 1778 |
public ViewPort cloneViewPort() {
|
| 1779 |
return createFromXML(getXMLEntity());
|
| 1780 |
} |
| 1781 |
|
| 1782 |
/**
|
| 1783 |
* <p>
|
| 1784 |
* Returns a <code>String</code> representation of the main values of this
|
| 1785 |
* view port: <code>{@linkplain #extent}</code>,
|
| 1786 |
* <code>{@linkplain #adjustedExtent}</code>,
|
| 1787 |
* <code>{@linkplain #imageSize}</code>, <code>{@linkplain #scale}</code>,
|
| 1788 |
* and <code>{@linkplain #trans}</code>.
|
| 1789 |
* </p>
|
| 1790 |
*
|
| 1791 |
* @return a <code>string</code> representation of the main values of this
|
| 1792 |
* view port
|
| 1793 |
*/
|
| 1794 |
public String toString() { |
| 1795 |
|
| 1796 |
String str;
|
| 1797 |
str = "Datos del viewPort:\nExtent=" + extent + "\nadjustedExtent=" |
| 1798 |
+ adjustedExtent + "\nimageSize=" + imageSize + "\nescale=" |
| 1799 |
+ scale + "\ntrans=" + trans;
|
| 1800 |
|
| 1801 |
return str;
|
| 1802 |
} |
| 1803 |
|
| 1804 |
/**
|
| 1805 |
* <p>
|
| 1806 |
* Sets the position and size of the clipping rectangle.
|
| 1807 |
* </p>
|
| 1808 |
*
|
| 1809 |
* @param rectView
|
| 1810 |
* the clipping rectangle to set
|
| 1811 |
*/
|
| 1812 |
public void setClipRect(Rectangle2D rectView) { |
| 1813 |
this.updateDrawVersion();
|
| 1814 |
cliprect = rectView; |
| 1815 |
} |
| 1816 |
|
| 1817 |
/**
|
| 1818 |
* <p>
|
| 1819 |
* Converts and returns the {@link Rectangle2D Rectangle2D}, that is in
|
| 1820 |
* <i>map coordinates</i> to <i>screen coordinates</i> (pixels) using an
|
| 1821 |
* <i>inverse transform</i> with the transformation affine information in
|
| 1822 |
* the {@link #trans #trans} attribute.
|
| 1823 |
* </p>
|
| 1824 |
*
|
| 1825 |
* @param r
|
| 1826 |
* the 2D rectangle in <i>map coordinates</i>
|
| 1827 |
* @return 2D rectangle equivalent in <i>screen coordinates</i> (pixels)
|
| 1828 |
*
|
| 1829 |
* @see #toMapRectangle(Rectangle2D)
|
| 1830 |
* @see #fromMapDistance(double)
|
| 1831 |
* @see #fromMapPoint(Point2D)
|
| 1832 |
*/
|
| 1833 |
public Rectangle2D fromMapRectangle(Rectangle2D r) { |
| 1834 |
Rectangle2D rect = new Rectangle2D.Double(); |
| 1835 |
Point2D p1 = fromMapPoint((int) r.getX(), (int) r.getY()); |
| 1836 |
Point2D p2 = fromMapPoint((int) r.getMaxX(), (int) r.getMaxY()); |
| 1837 |
rect.setFrameFromDiagonal(p1, p2); |
| 1838 |
return rect;
|
| 1839 |
} |
| 1840 |
|
| 1841 |
/**
|
| 1842 |
* <p>
|
| 1843 |
* Recalculates the current <code>{@linkplain #extent}</code> using an
|
| 1844 |
* scale. It's necessary execute {@linkplain #refreshExtent()} after.
|
| 1845 |
* </p>
|
| 1846 |
*
|
| 1847 |
* @param s
|
| 1848 |
* the scale to set
|
| 1849 |
*
|
| 1850 |
* @deprecated since 07/09/07, use
|
| 1851 |
* {@linkplain MapContext#setScaleView(long)}
|
| 1852 |
*/
|
| 1853 |
public void setScale(long s) { |
| 1854 |
double x = extent.getX();
|
| 1855 |
double y = extent.getY();
|
| 1856 |
double escalaX = imageSize.width / extent.getWidth();
|
| 1857 |
double w = imageSize.width / s;
|
| 1858 |
double h = imageSize.height / s;
|
| 1859 |
double difw = escalaX / s;
|
| 1860 |
|
| 1861 |
double x1 = (-x * difw) - x + extent.getWidth() / 2; |
| 1862 |
double y1 = (-y * difw) - y + extent.getHeight() / 2; |
| 1863 |
double w1 = extent.getWidth() * difw;
|
| 1864 |
double h1 = extent.getHeight() * difw;
|
| 1865 |
extent.setRect(-x1, -y1, w1, h1); |
| 1866 |
} |
| 1867 |
|
| 1868 |
public long getDrawVersion() { |
| 1869 |
return this.drawVersion; |
| 1870 |
} |
| 1871 |
|
| 1872 |
protected void updateDrawVersion() { |
| 1873 |
this.drawVersion++;
|
| 1874 |
} |
| 1875 |
|
| 1876 |
} |