svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / ViewPort.java @ 21886
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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.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.gt2.CSUTM; |
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import org.gvsig.fmap.crs.CRSFactory; |
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import org.gvsig.fmap.geom.primitive.DefaultEnvelope; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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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 com.iver.utiles.StringUtilities; |
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import com.iver.utiles.XMLEntity; |
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/**
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* <p><code>ViewPort</code> class represents the logic needed to transform a rectangular area of a map
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* to the available area in screen to display it.</p>
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*
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* <p>Includes an affine transformation, between the rectangular area selected of the external map, in its own
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* <i>map coordinates</i>, to the rectangular area available of a view in <i>screen coordinates</i>.</p>
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*
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* <p>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>) of the area available
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* 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 <i>imageSize</i>.<br>This implies adapt the
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* extent, preserving and centering it, and adding around the needed area to fill all the image size. That
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* added area will be extracted 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 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 previous extents.
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* <li><i>offset</i>: position in pixels of the available rectangular area, where start drawing the map.
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* <li><i>dist1pixel</i>: the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the
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* current extent.
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* <li><i>dist3pixel</i>: the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the
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* current extent.
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* <li><i>listeners</i>: list with the {@link ViewPortListener ViewPortListener} 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 equal to the distance
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// * traveled by light in a vacuum in {frac;1;299,792,458} second or to 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 defined to be precisely
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// * 1,760 international yards (by definition, 0.9144 m each) and is 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 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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/**
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* <p>Screen resolution in <i>dots-per-inch</i>. Useful to calculate the geographic scale of the view.</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>Area selected by user using some tool.</p>
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*
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* <p>When the zoom changes (for instance when using the zoom in or zoom out tools,
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* but also zooming to a selected feature or shape) the extent that covers that
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* area is the value returned by this method. It is not the actual area shown
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* in the view because it does not care about the aspect ratio of the available
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* area. However, any part of the real world contained in this extent is shown
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* 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
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* the complete extent currently shown, you must use {@linkplain #getAdjustedExtent()} method
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* which returns the extent that contains this one but regarding the current
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* 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>Location and dimensions of the extent adjusted to the image size.</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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* <p>History with the last extents of the view.</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>Size in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
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* <p>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 ({@link #dist1pixel dist1pixel}) .
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* <li>The new real world coordinates equivalent to 3 pixels ({@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>the affine transformation between the {@link #extent extent} in <i>map 2D coordinates</i> to
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* the image area in the screen, in <i>screen 2D coordinates</i> (pixels).</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>Measurement unit used for measuring distances and displaying information.</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>Measurement unit used for measuring areas and displaying information.</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>Measurement unit used by this view port for the map.</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>Array with the {@link ViewPortListener ViewPortListener}s registered to this view port.</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>The offset is the position where start drawing the map.</p>
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* <p>The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s <i>View</i> is
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* always (0, 0) because the drawing area fits with the full window area. But in
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* 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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* the <code>FFrameView</code> is located.</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>Clipping area.</p>
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*/
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private Rectangle2D clip; |
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/**
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* <p>Background color of this view.</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>Information about the map projection used in this view.</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>Represents the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</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>Represents the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</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>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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*/
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private double scale; |
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/**
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* <p>Clipping area.</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>Enables or disables the <i>"adjustable extent"</i> mode.</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, Y) coordinates of the <code>extent</code> and
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* an area that will be an scale of the image size. That area will have different
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* 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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* <li><i>disabled</i>: the new <code>adjustedExtent</code> will be like <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>Creates a new view port with the information of the projection in <code>proj</code> argument, and
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* default configuration:</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 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>Changes the status of the <i>"adjustable extent"</i> option to enabled or disabled.</p>
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*
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* <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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* calculate the affine transform from the original map in real coordinates. (Won't scale the image to adapt
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* it to the available rectangular area).</p>
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*
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* @param boolean the boolean to be set
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*/
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public void setAdjustable(boolean adjustable) { |
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adjustableExtent = adjustable; |
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} |
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/**
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* <p>Appends the specified {@link ViewPortListener ViewPortListener} listener if weren't.</p>
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*
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* @param arg0 the listener to add
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*
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* @return <code>true</code> if has been added successfully
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*
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* @see #removeViewPortListener(ViewPortListener)
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*/
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public boolean addViewPortListener(ViewPortListener arg0) { |
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if (!listeners.contains(arg0))
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return listeners.add(arg0);
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return false; |
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} |
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|
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/**
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* <p>Removes the specified {@link ViewPortListener ViewPortListener} listener, if existed.</p>
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*
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* @param arg0 the listener to remove
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*
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* @return <code>true</code> if the contained the specified listener.
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*
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* @see #addViewPortListener(ViewPortListener)
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*/
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public boolean removeViewPortListener(ViewPortListener arg0) { |
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return listeners.remove(arg0);
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} |
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|
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/**
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* <p>Converts and returns the distance <code>d</code>, that is in <i>map
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* coordinates</i> to <i>screen coordinates</i> using a <i>delta transform</i> with
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* the transformation affine information in the {@link #trans #trans} attribute.</p>
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*
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* @param d distance in <i>map coordinates</i>
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*
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* @return distance equivalent in <i>screen coordinates</i>
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*
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* @see #toMapDistance(int)
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* @see AffineTransform#deltaTransform(Point2D, Point2D)S
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*/
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public int fromMapDistance(double d) { |
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Point2D.Double pWorld = new Point2D.Double(1, 1); |
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Point2D.Double pScreen = new Point2D.Double(); |
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try {
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trans.deltaTransform(pWorld, pScreen); |
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} catch (Exception e) { |
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System.err.print(e.getMessage());
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} |
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return (int) (d * pScreen.x); |
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} |
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|
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/**
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* <p>Converts and returns the 2D point <code>(x,y)</code>, that is in <i>map
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* coordinates</i> to <i>screen coordinates</i> (pixels) using
|
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* the affine transformation in the {@link #trans #trans} attribute.</p>
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*
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* @param x the <code>x</code> <i>map coordinate</i> of a 2D point
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* @param y the <code>y</code> <i>map coordinate</i> of a 2D point
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*
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* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
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*
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* @see #fromMapPoint(Point2D)
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* @see AffineTransform#transform(Point2D, Point2D)
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*/
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public Point2D fromMapPoint(double x, double y) { |
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Point2D.Double pWorld = new Point2D.Double(x, y); |
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Point2D.Double pScreen = new Point2D.Double(); |
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try {
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trans.transform(pWorld, pScreen); |
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} catch (Exception e) { |
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System.err.print(e.getMessage());
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} |
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return pScreen;
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} |
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|
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/**
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* <p>Converts and returns the 2D point argument, that is in <i>map
|
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* coordinates</i> to <i>screen coordinates</i> (pixels) using
|
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* the affine transformation in the {@link #trans #trans} attribute.</p>
|
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*
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* @param point the 2D point in <i>map coordinates</i>
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*
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* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
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*
|
457 |
* @see #toMapPoint(Point2D)
|
458 |
* @see #fromMapPoint(double, double)
|
459 |
*/
|
460 |
public Point2D fromMapPoint(Point2D point) { |
461 |
return fromMapPoint(point.getX(), point.getY());
|
462 |
} |
463 |
|
464 |
/**
|
465 |
* <p>Converts and returns the 2D point <code>(x,y)</code>, that is in <i>screen coordinates</i>
|
466 |
* (pixels) to <i>map coordinates</i> using
|
467 |
* the affine transformation in the {@link #trans #trans} attribute.</p>
|
468 |
*
|
469 |
* @param x the <code>x</code> <i>screen coordinate</i> of a 2D point
|
470 |
* @param y the <code>y</code> <i>screen coordinate</i> of a 2D point
|
471 |
*
|
472 |
* @return 2D point equivalent in <i>map coordinates</i>
|
473 |
*
|
474 |
* @see #toMapPoint(Point2D)
|
475 |
* @see #fromMapPoint(double, double)
|
476 |
*/
|
477 |
public Point2D toMapPoint(int x, int y) { |
478 |
Point pScreen = new Point(x, y); |
479 |
|
480 |
return toMapPoint(pScreen);
|
481 |
} |
482 |
|
483 |
/**
|
484 |
* <p>Converts and returns the {@link Rectangle2D Rectangle2D}, that is in <i>screen
|
485 |
* coordinates</i> (pixels) to <i>map coordinates</i> using {@linkplain #toMapDistance(int)},
|
486 |
* and {@linkplain #toMapPoint(int, int)}.</p>
|
487 |
*
|
488 |
* @param r the 2D rectangle in <i>screen coordinates</i> (pixels)
|
489 |
* @return 2D rectangle equivalent in <i>map coordinates</i>
|
490 |
*
|
491 |
* @see #fromMapRectangle(Rectangle2D)
|
492 |
* @see #toMapDistance(int)
|
493 |
* @see #toMapPoint(int, int)
|
494 |
*/
|
495 |
public Rectangle2D toMapRectangle(Rectangle2D r){ |
496 |
Rectangle2D rect=new Rectangle2D.Double(); |
497 |
Point2D p1=toMapPoint((int)r.getX(),(int)r.getY()); |
498 |
Point2D p2=toMapPoint((int)r.getMaxX(),(int)r.getMaxY()); |
499 |
rect.setFrameFromDiagonal(p1,p2); |
500 |
return rect;
|
501 |
} |
502 |
|
503 |
/**
|
504 |
* <p>Converts and returns the distance <code>d</code>, that is in <i>screen
|
505 |
* coordinates</i> to <i>map coordinates</i> using the transformation affine information
|
506 |
* in the {@link #trans #trans} attribute.</p>
|
507 |
*
|
508 |
* @param d distance in pixels
|
509 |
*
|
510 |
* @return distance equivalent in <i>map coordinates</i>
|
511 |
*
|
512 |
* @see #fromMapDistance(double)
|
513 |
* @see AffineTransform
|
514 |
*/
|
515 |
public double toMapDistance(int d) { |
516 |
double dist = d / trans.getScaleX();
|
517 |
|
518 |
return dist;
|
519 |
} |
520 |
|
521 |
/**
|
522 |
* <p>Converts and returns the 2D point argument, that is in <i>screen coordinates</i>
|
523 |
* (pixels) to <i>map coordinates</i> using the
|
524 |
* inverse affine transformation of the {@link #trans #trans} attribute.</p>
|
525 |
*
|
526 |
* @param pScreen the 2D point in <i>screen coordinates</i> (pixels)
|
527 |
*
|
528 |
* @return 2D point equivalent in <i>map coordinates</i>
|
529 |
*
|
530 |
* @see #toMapPoint(int, int)
|
531 |
* @see AffineTransform#createInverse()
|
532 |
* @see AffineTransform#transform(Point2D, Point2D)
|
533 |
*/
|
534 |
public Point2D toMapPoint(Point2D pScreen) { |
535 |
Point2D.Double pWorld = new Point2D.Double(); |
536 |
AffineTransform at;
|
537 |
|
538 |
try {
|
539 |
at = trans.createInverse(); |
540 |
at.transform(pScreen, pWorld); |
541 |
} catch (NoninvertibleTransformException e) { |
542 |
throw new RuntimeException("Non invertible transform Exception",e); |
543 |
} |
544 |
|
545 |
return pWorld;
|
546 |
} |
547 |
|
548 |
/**
|
549 |
* <p>Returns the real distance (in <i>world coordinates</i>) at the graphic layers of two 2D points
|
550 |
* (in <i>map coordinates</i>) of the plane where is selected the <i>extent</i>.</p>
|
551 |
* <p>If the projection of this view is UTM, considers the Earth curvature.</p>
|
552 |
*
|
553 |
* @param pt1 a 2D point in <i>map coordinates</i>
|
554 |
* @param pt2 another 2D point in <i>map coordinates</i>
|
555 |
*
|
556 |
* @return the distance in meters between the two points 2D
|
557 |
*
|
558 |
* @see GeoCalc#distanceVincenty(Point2D, Point2D)
|
559 |
*/
|
560 |
public double distanceWorld(Point2D pt1, Point2D pt2) { |
561 |
double dist = -1; |
562 |
dist = pt1.distance(pt2); |
563 |
|
564 |
if ((proj != null) && !(proj instanceof CSUTM)) { |
565 |
dist = new GeoCalc(proj).distanceVincenty(proj.toGeo(pt1),
|
566 |
proj.toGeo(pt2)); |
567 |
return dist;
|
568 |
} |
569 |
return (dist*MapContext.getDistanceTrans2Meter()[getMapUnits()]);
|
570 |
} |
571 |
|
572 |
/**
|
573 |
* <p>Sets as extent and adjusted extent of this view port, the previous. Recalculating
|
574 |
* its parameters.</p>
|
575 |
*
|
576 |
* @see #getExtents()
|
577 |
* @see #calculateAffineTransform()
|
578 |
*/
|
579 |
public void setPreviousExtent() { |
580 |
extent = extents.removePrev(); |
581 |
|
582 |
//Calcula la transformaci?n af?n
|
583 |
calculateAffineTransform(); |
584 |
|
585 |
// Lanzamos los eventos de extent cambiado
|
586 |
callExtentChanged(getAdjustedExtent()); |
587 |
} |
588 |
|
589 |
/**
|
590 |
* <p>Gets the area selected by user using some tool.</p>
|
591 |
*
|
592 |
* <p>When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom out</i> tools,
|
593 |
* but also zooming to a selected feature or shape) the extent that covers that
|
594 |
* area is the value returned by this method. It is not the actual area shown
|
595 |
* because it doesn't care about the aspect ratio of the image size of the view. However, any
|
596 |
* part of the real world contained in this extent is shown in the view.</p>
|
597 |
*
|
598 |
* <p>If you are looking for the complete extent currently shown, you must use the
|
599 |
* {@linkplain #getAdjustedExtent()} method.</p>
|
600 |
*
|
601 |
* @return the current extent
|
602 |
*
|
603 |
* @see #setEnvelope(Envelope)
|
604 |
* @see #getAdjustedExtent()
|
605 |
* @see #setPreviousExtent()
|
606 |
* @see #getExtents()
|
607 |
*/
|
608 |
public Rectangle2D getExtent() { |
609 |
return extent;
|
610 |
} |
611 |
|
612 |
/**
|
613 |
* <p>Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
614 |
* <ul>
|
615 |
* <li>Stores the previous extent.
|
616 |
* <li>Calculates the new extent using <code>r</code>:
|
617 |
* <pre>extent = new Rectangle2D.Double(r.getMinX() - 0.1, r.getMinY() - 0.1, r.getWidth() + 0.2, r.getHeight() + 0.2);</pre>
|
618 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new scale, adjusted extent, affine transformation between
|
619 |
* map and screen coordinates, the real world coordinates equivalent to 1 pixel, and the real world coordinates equivalent to 3 pixels.
|
620 |
* <li>Notifies all {@link ViewPortListener ViewPortListener} registered that the extent has changed.
|
621 |
* </ul>
|
622 |
* </p>
|
623 |
*
|
624 |
* @param r the new extent
|
625 |
*
|
626 |
* @see #getExtent()
|
627 |
* @see #getExtents()
|
628 |
* @see #calculateAffineTransform()
|
629 |
* @see #setPreviousExtent()
|
630 |
*/
|
631 |
public void setEnvelope(Envelope r) { |
632 |
if (extent != null) { |
633 |
extents.put(extent); |
634 |
} |
635 |
|
636 |
//Esto comprueba que el extent no es de anchura o altura = "0"
|
637 |
//y si es as? lo redimensiona.
|
638 |
if (r!=null &&((r.getMaximum(0)-r.getMinimum(0) == 0) || (r.getMaximum(1)-r.getMinimum(1) == 0))) { |
639 |
extent = new Rectangle2D.Double(r.getMinimum(0) - 0.1, |
640 |
r.getMinimum(1) - 0.1, r.getMaximum(0)-r.getMinimum(0) + 0.2, r.getMaximum(1)-r.getMinimum(1) + 0.2); |
641 |
} else {
|
642 |
extent = new Rectangle2D.Double(r.getMinimum(0),r.getMinimum(1),r.getMaximum(0)-r.getMinimum(0),r.getMaximum(1)-r.getMinimum(1)); |
643 |
} |
644 |
|
645 |
//Calcula la transformaci?n af?n
|
646 |
calculateAffineTransform(); |
647 |
|
648 |
// Lanzamos los eventos de extent cambiado
|
649 |
callExtentChanged(getAdjustedExtent()); |
650 |
} |
651 |
|
652 |
/**
|
653 |
* <p>Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
654 |
* <ul>
|
655 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new scale, adjusted extent, affine transformation between
|
656 |
* map and screen coordinates, the real world coordinates equivalent to 1 pixel, and the real world coordinates equivalent to 3 pixels.
|
657 |
* <li>Notifies to all {@link ViewPortListener ViewPortListener} registered that the extent has changed.
|
658 |
* </ul>
|
659 |
* </p>
|
660 |
*
|
661 |
* @see #setEnvelope(Envelope)
|
662 |
* @see #calculateAffineTransform()
|
663 |
*/
|
664 |
public void refreshExtent() { |
665 |
//this.scale = scale;
|
666 |
|
667 |
//Calcula la transformaci?n af?n
|
668 |
calculateAffineTransform(); |
669 |
|
670 |
// Lanzamos los eventos de extent cambiado
|
671 |
callExtentChanged(getAdjustedExtent()); |
672 |
} |
673 |
|
674 |
/**
|
675 |
* <p>Calculates and returns using the current projection of this view port, the scale that
|
676 |
* is the extent in <i>screen coordinates</i> from the image in <i>map coordinates</i>.</p>
|
677 |
*
|
678 |
* @return the scale <i>extent / image size</i> projected by this view port
|
679 |
*
|
680 |
* @deprecated since 07/09/07, use {@linkplain MapContext#getScaleView()}
|
681 |
*/
|
682 |
public double getScale() { |
683 |
return proj.getScale(extent.getMinX(), extent.getMaxX(),
|
684 |
imageSize.getWidth(), dpi); |
685 |
} |
686 |
|
687 |
/**
|
688 |
* <p>Affine transformation between <i>map 2D coordinates</i> to <i>screen 2D coordinates</i> (pixels),
|
689 |
* preserving the "straightness" and "parallelism" of the lines.</p>
|
690 |
*
|
691 |
* @return the affine transformation
|
692 |
*
|
693 |
* @see #setAffineTransform(AffineTransform)
|
694 |
* @see #calculateAffineTransform()
|
695 |
*/
|
696 |
public AffineTransform getAffineTransform() { |
697 |
return trans;
|
698 |
} |
699 |
|
700 |
/**
|
701 |
* <p>Returns the size of the image projected.</p>
|
702 |
*
|
703 |
* @return the image size
|
704 |
*
|
705 |
* @see #setImageSize(Dimension)
|
706 |
* @see #getImageHeight()
|
707 |
* @see #getImageWidth()
|
708 |
*/
|
709 |
public Dimension getImageSize() { |
710 |
return imageSize;
|
711 |
} |
712 |
|
713 |
/**
|
714 |
* <p>Sets the size of the image projected, recalculating the parameters of this view port.</p>
|
715 |
*
|
716 |
* @param imageSize the image size
|
717 |
*
|
718 |
* @see #getImageSize()
|
719 |
* @see #calculateAffineTransform()
|
720 |
*/
|
721 |
public void setImageSize(Dimension imageSize) { |
722 |
this.imageSize = imageSize;
|
723 |
calculateAffineTransform(); |
724 |
} |
725 |
|
726 |
/**
|
727 |
* <p>Notifies to all view port listeners registered, that the adjusted extent of this view port
|
728 |
* has changed.</p>
|
729 |
*
|
730 |
* @param newRect the new adjusted extend
|
731 |
*
|
732 |
* @see #refreshExtent()
|
733 |
* @see #setEnvelope(Envelope)
|
734 |
* @see #setPreviousExtent()
|
735 |
* @see ExtentEvent
|
736 |
* @see ViewPortListener
|
737 |
*/
|
738 |
protected void callExtentChanged(Envelope newRect) { |
739 |
ExtentEvent ev = ExtentEvent.createExtentEvent(newRect); |
740 |
|
741 |
for (int i = 0; i < listeners.size(); i++) { |
742 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
743 |
listener.extentChanged(ev); |
744 |
} |
745 |
} |
746 |
|
747 |
/**
|
748 |
* <p>Notifies to all view port listeners registered, that the background color of this view port
|
749 |
* has changed.</p>
|
750 |
*
|
751 |
* @param c the new background color
|
752 |
*
|
753 |
* @see #setBackColor(Color)
|
754 |
* @see ColorEvent
|
755 |
* @see ViewPortListener
|
756 |
*/
|
757 |
private void callColorChanged(Color c) { |
758 |
ColorEvent ce = ColorEvent.createColorEvent(c); |
759 |
|
760 |
for (int i = 0; i < listeners.size(); i++) { |
761 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
762 |
listener.backColorChanged(ce); |
763 |
} |
764 |
} |
765 |
|
766 |
/**
|
767 |
* <p>Notifies to all view port listeners registered, that the projection of this view port
|
768 |
* has changed.</p>
|
769 |
*
|
770 |
* @param projection the new projection
|
771 |
*
|
772 |
* @see #setProjection(IProjection)
|
773 |
* @see ProjectionEvent
|
774 |
* @see ViewPortListener
|
775 |
*/
|
776 |
private void callProjectionChanged(IProjection projection) { |
777 |
ProjectionEvent ev = ProjectionEvent.createProjectionEvent(projection); |
778 |
|
779 |
for (int i = 0; i < listeners.size(); i++) { |
780 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
781 |
listener.projectionChanged(ev); |
782 |
} |
783 |
} |
784 |
|
785 |
/**
|
786 |
* <p>Calculates the affine transformation between the {@link #extent extent} in <i>map 2D coordinates</i> to
|
787 |
* the image area in the screen, in <i>screen 2D coordinates</i> (pixels).</p>
|
788 |
*
|
789 |
* <p>This process recalculates some parameters of this view port:<br>
|
790 |
*
|
791 |
* <ul>
|
792 |
* <li>The new {@link #scale scale} .
|
793 |
* <li>The new {@link #adjustedExtent adjustedExtent} .
|
794 |
* <li>The new {@link #trans trans} .
|
795 |
* <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
796 |
* <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
797 |
* </ul>
|
798 |
* </p>
|
799 |
*
|
800 |
* @see #getAffineTransform()
|
801 |
* @see #setAffineTransform(AffineTransform)
|
802 |
* @see #refreshExtent()
|
803 |
* @see #setEnvelope(Envelope)
|
804 |
* @see #setImageSize(Dimension)
|
805 |
* @see #setPreviousExtent()
|
806 |
* @see #createFromXML(XMLEntity)
|
807 |
* @see AffineTransform
|
808 |
*/
|
809 |
private void calculateAffineTransform() { |
810 |
if ((imageSize == null) || (extent == null) || |
811 |
(imageSize.getWidth() <= 0) || (imageSize.getHeight() <= 0)) { |
812 |
return;
|
813 |
} |
814 |
|
815 |
AffineTransform escalado = new AffineTransform(); |
816 |
AffineTransform translacion = new AffineTransform(); |
817 |
|
818 |
double escalaX;
|
819 |
double escalaY;
|
820 |
|
821 |
escalaX = imageSize.getWidth() / extent.getWidth(); |
822 |
escalaY = imageSize.getHeight() / extent.getHeight(); |
823 |
|
824 |
double xCenter = extent.getCenterX();
|
825 |
double yCenter = extent.getCenterY();
|
826 |
double newHeight;
|
827 |
double newWidth;
|
828 |
|
829 |
adjustedExtent = new Rectangle2D.Double(); |
830 |
|
831 |
if (adjustableExtent) {
|
832 |
if (escalaX < escalaY) {
|
833 |
scale = escalaX; |
834 |
newHeight = imageSize.getHeight() / scale; |
835 |
adjustedExtent.setRect(xCenter - (extent.getWidth() / 2.0),
|
836 |
yCenter - (newHeight / 2.0), extent.getWidth(), newHeight);
|
837 |
} else {
|
838 |
scale = escalaY; |
839 |
newWidth = imageSize.getWidth() / scale; |
840 |
adjustedExtent.setRect(xCenter - (newWidth / 2.0),
|
841 |
yCenter - (extent.getHeight() / 2.0), newWidth,
|
842 |
extent.getHeight()); |
843 |
} |
844 |
escalado.setToScale(scale, -scale); |
845 |
} |
846 |
else { // adjusted is same as extent |
847 |
scale = escalaX; |
848 |
adjustedExtent.setFrame(extent); |
849 |
escalado.setToScale(escalaX, -escalaY); |
850 |
} |
851 |
Envelope env=getAdjustedExtent(); |
852 |
if (env == null) |
853 |
return;
|
854 |
translacion.setToTranslation(-env.getMinimum(0),
|
855 |
-env.getMinimum(1) - getAdjustedExtent().getLength(1)); |
856 |
|
857 |
AffineTransform offsetTrans = new AffineTransform(); |
858 |
offsetTrans.setToTranslation(offset.getX(), offset.getY()); |
859 |
|
860 |
trans.setToIdentity(); |
861 |
trans.concatenate(offsetTrans); |
862 |
trans.concatenate(escalado); |
863 |
|
864 |
trans.concatenate(translacion); |
865 |
|
866 |
// Calculamos las distancias de 1 pixel y 3 pixel con esa transformaci?n
|
867 |
// de coordenadas, de forma que est?n precalculadas para cuando las necesitemos
|
868 |
AffineTransform at;
|
869 |
|
870 |
try {
|
871 |
at = trans.createInverse(); |
872 |
|
873 |
java.awt.Point pPixel = new java.awt.Point(1, 1); |
874 |
Point2D.Float pProv = new Point2D.Float(); |
875 |
at.deltaTransform(pPixel, pProv); |
876 |
|
877 |
dist1pixel = pProv.x; |
878 |
dist3pixel = 3 * pProv.x;
|
879 |
} catch (NoninvertibleTransformException e) { |
880 |
System.err.println("transformada afin = " + trans.toString()); |
881 |
System.err.println("extent = " + extent.toString() + |
882 |
" imageSize= " + imageSize.toString());
|
883 |
throw new RuntimeException("Non invertible transform Exception",e); |
884 |
} |
885 |
} |
886 |
|
887 |
/**
|
888 |
* <p>Sets the offset.</p>
|
889 |
* <p>The offset is the position where start drawing the map.</p>
|
890 |
*
|
891 |
* @param p 2D point that represents the offset in pixels
|
892 |
*
|
893 |
* @see #getOffset()
|
894 |
*/
|
895 |
public void setOffset(Point2D p) { |
896 |
offset = p; |
897 |
} |
898 |
|
899 |
/**
|
900 |
* <p>Gets the offset.</p>
|
901 |
* <p>The offset is the position where start drawing the map.</p>
|
902 |
*
|
903 |
* @return 2D point that represents the offset in pixels
|
904 |
*
|
905 |
* @see #setOffset(Point2D)
|
906 |
*/
|
907 |
public Point2D getOffset() { |
908 |
return offset;
|
909 |
} |
910 |
|
911 |
/**
|
912 |
* <p>Sets the background color.</p>
|
913 |
*
|
914 |
* @param c the new background color
|
915 |
*
|
916 |
* @see #getBackColor()
|
917 |
*/
|
918 |
public void setBackColor(Color c) { |
919 |
backColor = c; |
920 |
callColorChanged(backColor); |
921 |
} |
922 |
|
923 |
/**
|
924 |
* <p>Gets the background color.</p>
|
925 |
*
|
926 |
* @return the background color of the view
|
927 |
*
|
928 |
* @see #setBackColor(Color)
|
929 |
*/
|
930 |
public Color getBackColor() { |
931 |
return backColor;
|
932 |
} |
933 |
|
934 |
/**
|
935 |
* <p>Returns the extent currently covered by the view adjusted (scaled) to the image size aspect.</p>
|
936 |
*
|
937 |
* @return extent of the view adjusted to the image size aspect
|
938 |
*
|
939 |
* @see #setAdjustable(boolean)
|
940 |
*/
|
941 |
public Envelope getAdjustedExtent() {
|
942 |
if (cliprect!=null){ |
943 |
Rectangle2D r= adjustedExtent.createIntersection(cliprect);
|
944 |
return new DefaultEnvelope(2,new double[]{r.getX(),r.getY()},new double[]{r.getMaxX(),r.getMaxY()}); |
945 |
} |
946 |
if (adjustedExtent!=null) |
947 |
return new DefaultEnvelope(2,new double[]{adjustedExtent.getX(),adjustedExtent.getY()},new double[]{adjustedExtent.getMaxX(),adjustedExtent.getMaxY()}); |
948 |
return null; |
949 |
} |
950 |
|
951 |
/**
|
952 |
* <p>Returns the measurement unit of this view port used for measuring distances and displaying information.</p>
|
953 |
*
|
954 |
* @return the measurement unit of this view used for measuring distances and displaying information
|
955 |
*
|
956 |
* @see #setDistanceUnits(int)
|
957 |
*/
|
958 |
public int getDistanceUnits() { |
959 |
return distanceUnits;
|
960 |
} |
961 |
/**
|
962 |
* <p>Returns the measurement unit of this view port used for measuring areas and displaying information.</p>
|
963 |
*
|
964 |
* @return the measurement unit of this view used for measuring areas and displaying information
|
965 |
*
|
966 |
* @see #setDistanceUnits(int)
|
967 |
*/
|
968 |
public int getDistanceArea() { |
969 |
return distanceArea;
|
970 |
} |
971 |
/**
|
972 |
* <p>Sets the measurement unit of this view port used for measuring distances and displaying information.</p>
|
973 |
*
|
974 |
* @param distanceUnits the measurement unit of this view used for measuring distances and displaying information
|
975 |
*
|
976 |
* @see #getDistanceUnits()
|
977 |
*/
|
978 |
public void setDistanceUnits(int distanceUnits) { |
979 |
this.distanceUnits = distanceUnits;
|
980 |
} |
981 |
/**
|
982 |
* <p>Sets the measurement unit of this view port used for measuring areas and displaying information.</p>
|
983 |
*
|
984 |
* @param distanceUnits the measurement unit of this view used for measuring areas and displaying information
|
985 |
*
|
986 |
* @see #getDistanceUnits()
|
987 |
*/
|
988 |
public void setDistanceArea(int distanceArea) { |
989 |
this.distanceArea = distanceArea;
|
990 |
} |
991 |
/**
|
992 |
* <p>Gets the measurement unit used by this view port for the map.</p>
|
993 |
*
|
994 |
* @return Returns the current map measure unit
|
995 |
*
|
996 |
* @see #setMapUnits(int)
|
997 |
*/
|
998 |
public int getMapUnits() { |
999 |
return mapUnits;
|
1000 |
} |
1001 |
|
1002 |
/**
|
1003 |
* <p>Sets the measurement unit used by this view port for the map.</p>
|
1004 |
*
|
1005 |
* @param mapUnits the new map measure unit
|
1006 |
*
|
1007 |
* @see #getMapUnits()
|
1008 |
*/
|
1009 |
public void setMapUnits(int mapUnits) { |
1010 |
this.mapUnits = mapUnits;
|
1011 |
} |
1012 |
|
1013 |
/**
|
1014 |
* <p>Gets the width in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
|
1015 |
* <p>Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
1016 |
*
|
1017 |
* <ul>
|
1018 |
* <li>The new {@link #scale scale} .
|
1019 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
1020 |
* <li>The new {@link #trans trans} .
|
1021 |
* <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
1022 |
* <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
1023 |
* </ul>
|
1024 |
* </p>
|
1025 |
*
|
1026 |
* @see #getImageHeight()
|
1027 |
* @see #getImageSize()
|
1028 |
* @see #setImageSize(Dimension)
|
1029 |
*/
|
1030 |
public int getImageWidth() { |
1031 |
return imageSize.width;
|
1032 |
} |
1033 |
|
1034 |
/**
|
1035 |
* <p>Gets the height in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
|
1036 |
* <p>Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
1037 |
*
|
1038 |
* <ul>
|
1039 |
* <li>The new {@link #scale scale} .
|
1040 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
1041 |
* <li>The new {@link #trans trans} .
|
1042 |
* <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
1043 |
* <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
1044 |
* </ul>
|
1045 |
* </p>
|
1046 |
*
|
1047 |
* @see #getImageWidth()
|
1048 |
* @see #getImageSize()
|
1049 |
* @see #setImageSize(Dimension)
|
1050 |
*/
|
1051 |
public int getImageHeight() { |
1052 |
return imageSize.height;
|
1053 |
} |
1054 |
|
1055 |
/**
|
1056 |
* <p>Gets the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</p>
|
1057 |
*
|
1058 |
* @return the distance
|
1059 |
*
|
1060 |
* @see #setDist1pixel(double)
|
1061 |
*/
|
1062 |
public double getDist1pixel() { |
1063 |
return dist1pixel;
|
1064 |
} |
1065 |
|
1066 |
/**
|
1067 |
* <p>Sets the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</p>
|
1068 |
*
|
1069 |
* @param dist1pixel the distance
|
1070 |
*
|
1071 |
* @see #getDist1pixel()
|
1072 |
*/
|
1073 |
public void setDist1pixel(double dist1pixel) { |
1074 |
this.dist1pixel = dist1pixel;
|
1075 |
} |
1076 |
|
1077 |
/**
|
1078 |
* <p>Gets the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</p>
|
1079 |
*
|
1080 |
* @return the distance
|
1081 |
*
|
1082 |
* @see #setDist3pixel(double)
|
1083 |
*/
|
1084 |
public double getDist3pixel() { |
1085 |
return dist3pixel;
|
1086 |
} |
1087 |
|
1088 |
/**
|
1089 |
* <p>Sets the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</p>
|
1090 |
*
|
1091 |
* @param dist3pixel the distance
|
1092 |
*
|
1093 |
* @see #getDist3pixel()
|
1094 |
*/
|
1095 |
public void setDist3pixel(double dist3pixel) { |
1096 |
this.dist3pixel = dist3pixel;
|
1097 |
} |
1098 |
|
1099 |
/**
|
1100 |
* <p>Returns the last previous extents of this view port.</p>
|
1101 |
*
|
1102 |
* @return the last previous extents of this view port
|
1103 |
*
|
1104 |
* @see #setPreviousExtent()
|
1105 |
*/
|
1106 |
public ExtentHistory getExtents() {
|
1107 |
return extents;
|
1108 |
} |
1109 |
|
1110 |
/**
|
1111 |
* <p>Gets the projection used in this view port.</p>
|
1112 |
*
|
1113 |
* @return projection used in this view port
|
1114 |
*
|
1115 |
* @see #setProjection(IProjection)
|
1116 |
*/
|
1117 |
public IProjection getProjection() {
|
1118 |
return proj;
|
1119 |
} |
1120 |
|
1121 |
/**
|
1122 |
* <p>Sets the projection to this view port.</p>
|
1123 |
*
|
1124 |
* @param proj the new projection
|
1125 |
*
|
1126 |
* @see #getProjection()
|
1127 |
*/
|
1128 |
public void setProjection(IProjection proj) { |
1129 |
if(this.proj == null || !this.proj.getAbrev().equals(proj.getAbrev())) { |
1130 |
this.proj = proj;
|
1131 |
callProjectionChanged(proj); |
1132 |
} |
1133 |
} |
1134 |
|
1135 |
// -----------------------------------------------------------------------------------------------------------
|
1136 |
// NOTA PARA DESARROLLADORES SOBRE EL M?TODO "public void setAffineTransform(AffineTransform at)"
|
1137 |
// ==============================================================================================
|
1138 |
// Only used for print, should be removed, redefining the {@link RasterAdapter RasterAdapter} interface,
|
1139 |
// allowing it to receive a {@link ViewPortData ViewPortData} .
|
1140 |
// -----------------------------------------------------------------------------------------------------------
|
1141 |
|
1142 |
/**
|
1143 |
* <p>Sets only the affine transform to this view port, without updating dependent attributes.</p>
|
1144 |
* <p><b><i>This method could be problematic!</i></b></p>
|
1145 |
*
|
1146 |
* @param at the affine transform to set
|
1147 |
*
|
1148 |
* @see #getAffineTransform()
|
1149 |
* @see #calculateAffineTransform()
|
1150 |
*/
|
1151 |
public void setAffineTransform(AffineTransform at) |
1152 |
{ |
1153 |
this.trans = at;
|
1154 |
} |
1155 |
|
1156 |
/**
|
1157 |
* <p>Returns an XML entity that represents this view port instance:<br>
|
1158 |
* <ul>
|
1159 |
* <li>Properties:
|
1160 |
* <ul>
|
1161 |
* <li><i>className</i>: name of this class.
|
1162 |
* <li>If defined, the adjusted extent:
|
1163 |
* <ul>
|
1164 |
* <li><i>adjustedExtentX</i>: X coordinate of the adjusted extent.
|
1165 |
* <li><i>adjustedExtentY</i>: Y coordinate of the adjusted extent.
|
1166 |
* <li><i>adjustedExtentW</i>: width of the adjusted extent.
|
1167 |
* <li><i>adjustedExtentH</i>: height of the adjusted extent.
|
1168 |
* </ul>
|
1169 |
* <li>If defined, the background color:
|
1170 |
* <ul>
|
1171 |
* <li><i>backColor</i>: background color.
|
1172 |
* </ul>
|
1173 |
* <li>If defined, the clip:
|
1174 |
* <ul>
|
1175 |
* <li><i>clipX</i>: X coordinate of the clip.
|
1176 |
* <li><i>clipY</i>: Y coordinate of clip.
|
1177 |
* <li><i>clipW</i>: width of the clip.
|
1178 |
* <li><i>clipH</i>: height of the clip.
|
1179 |
* </ul>
|
1180 |
* <li><i>dist1pixel</i>: the distance in world coordinates equivalent to 1 pixel in the view.
|
1181 |
* <li><i>dist3pixel</i>: the distance in world coordinates equivalent to 3 pixels in the view.
|
1182 |
* <li><i>distanceUnits</i>: the distance measurement unit.
|
1183 |
* <li>If defined, the extent:
|
1184 |
* <ul>
|
1185 |
* <li><i>extentX</i>: X coordinate of the extent.
|
1186 |
* <li><i>extentY</i>: Y coordinate of the extent.
|
1187 |
* <li><i>extentW</i>: width of the extent.
|
1188 |
* <li><i>extentH</i>: height of the extent.
|
1189 |
* </ul>
|
1190 |
* <li><i>mapUnits</i>: the map measurement unit.
|
1191 |
* <li><i>offsetX</i>: X coordinate of the offset.
|
1192 |
* <li><i>offsetY</i>: Y coordinate of the offset.
|
1193 |
* <li>If defined, the projection:
|
1194 |
* <ul>
|
1195 |
* <li>If its defined, the projection:
|
1196 |
* <ul>
|
1197 |
* <li><i>proj</i>: the projection.</li>
|
1198 |
* </ul>
|
1199 |
* </ul>
|
1200 |
* <li><i>scale</i>: ratio between the size of <code>imageSize</code> and <code>extent</code>.
|
1201 |
* </ul>
|
1202 |
* <li>Child branches:
|
1203 |
* <ul>
|
1204 |
* <li>XML entity of the internal {@link ExtentHistory ExtentHistory} .
|
1205 |
* </ul>
|
1206 |
* </ul>
|
1207 |
*
|
1208 |
* @return the XML entity
|
1209 |
*
|
1210 |
* @see #createFromXML(XMLEntity)
|
1211 |
*/
|
1212 |
public XMLEntity getXMLEntity() {
|
1213 |
XMLEntity xml = new XMLEntity();
|
1214 |
xml.putProperty("className",this.getClass().getName()); |
1215 |
|
1216 |
if (adjustedExtent != null) { |
1217 |
xml.putProperty("adjustedExtentX", adjustedExtent.getX());
|
1218 |
xml.putProperty("adjustedExtentY", adjustedExtent.getY());
|
1219 |
xml.putProperty("adjustedExtentW", adjustedExtent.getWidth());
|
1220 |
xml.putProperty("adjustedExtentH", adjustedExtent.getHeight());
|
1221 |
} |
1222 |
|
1223 |
if (backColor != null) |
1224 |
xml.putProperty("backColor", StringUtilities.color2String(backColor));
|
1225 |
|
1226 |
if (clip != null) { |
1227 |
xml.putProperty("clipX", clip.getX());
|
1228 |
xml.putProperty("clipY", clip.getY());
|
1229 |
xml.putProperty("clipW", clip.getWidth());
|
1230 |
xml.putProperty("clipH", clip.getHeight());
|
1231 |
} |
1232 |
|
1233 |
xml.putProperty("dist1pixel", dist1pixel);
|
1234 |
xml.putProperty("dist3pixel", dist3pixel);
|
1235 |
xml.putProperty("distanceUnits", distanceUnits);
|
1236 |
|
1237 |
if (extent != null) { |
1238 |
xml.putProperty("extentX", extent.getX());
|
1239 |
xml.putProperty("extentY", extent.getY());
|
1240 |
xml.putProperty("extentW", extent.getWidth());
|
1241 |
xml.putProperty("extentH", extent.getHeight());
|
1242 |
} |
1243 |
|
1244 |
xml.addChild(extents.getXMLEntity()); |
1245 |
xml.putProperty("mapUnits", mapUnits);
|
1246 |
xml.putProperty("offsetX", offset.getX());
|
1247 |
xml.putProperty("offsetY", offset.getY());
|
1248 |
|
1249 |
if (proj != null) { |
1250 |
xml.putProperty("proj", proj.getAbrev());
|
1251 |
} |
1252 |
|
1253 |
xml.putProperty("scale", scale);
|
1254 |
|
1255 |
return xml;
|
1256 |
} |
1257 |
|
1258 |
|
1259 |
/**
|
1260 |
* <p>Creates a new <code>ViewPort</code> from an XML entity.</p>
|
1261 |
*
|
1262 |
* @param xml an XML entity
|
1263 |
*
|
1264 |
* @return the new <code>ViewPort</code>
|
1265 |
*
|
1266 |
* @see #getXMLEntity()
|
1267 |
* @see #createFromXML03(XMLEntity)
|
1268 |
*/
|
1269 |
public static ViewPort createFromXML(XMLEntity xml) { |
1270 |
ViewPort vp = new ViewPort(null); |
1271 |
|
1272 |
if (xml.contains("adjustedExtentX")) { |
1273 |
vp.adjustedExtent = new Rectangle2D.Double(xml.getDoubleProperty( |
1274 |
"adjustedExtentX"),
|
1275 |
xml.getDoubleProperty("adjustedExtentY"),
|
1276 |
xml.getDoubleProperty("adjustedExtentW"),
|
1277 |
xml.getDoubleProperty("adjustedExtentH"));
|
1278 |
} |
1279 |
|
1280 |
if (xml.contains("backColor")) { |
1281 |
vp.setBackColor(StringUtilities.string2Color(xml.getStringProperty( |
1282 |
"backColor")));
|
1283 |
}else {
|
1284 |
vp.setBackColor(Color.white);
|
1285 |
} |
1286 |
|
1287 |
if (xml.contains("clipX")) { |
1288 |
vp.clip = new Rectangle2D.Double(xml.getDoubleProperty("clipX"), |
1289 |
xml.getDoubleProperty("clipY"),
|
1290 |
xml.getDoubleProperty("clipW"),
|
1291 |
xml.getDoubleProperty("clipH"));
|
1292 |
} |
1293 |
|
1294 |
vp.setDist1pixel(xml.getDoubleProperty("dist1pixel"));
|
1295 |
vp.setDist3pixel(xml.getDoubleProperty("dist3pixel"));
|
1296 |
vp.setDistanceUnits(xml.getIntProperty("distanceUnits"));
|
1297 |
if (xml.contains("distanceArea")){ |
1298 |
vp.setDistanceArea(xml.getIntProperty("distanceArea"));
|
1299 |
}else{
|
1300 |
vp.setDistanceArea(xml.getIntProperty("distanceUnits"));
|
1301 |
} |
1302 |
vp.extents = ExtentHistory.createFromXML(xml.getChild(0));
|
1303 |
|
1304 |
if (xml.contains("extentX")) { |
1305 |
double x=xml.getDoubleProperty("extentX"); |
1306 |
double y=xml.getDoubleProperty("extentY"); |
1307 |
vp.setEnvelope(new DefaultEnvelope(2,new double[]{x,y}, |
1308 |
new double[]{x+xml.getDoubleProperty("extentW"),y+xml.getDoubleProperty("extentH")})); |
1309 |
|
1310 |
//Calcula la transformaci?n af?n
|
1311 |
vp.calculateAffineTransform(); |
1312 |
|
1313 |
// Lanzamos los eventos de extent cambiado
|
1314 |
// vp.callExtentListeners(vp.adjustedExtent);
|
1315 |
} |
1316 |
|
1317 |
vp.setMapUnits(xml.getIntProperty("mapUnits"));
|
1318 |
vp.setOffset(new Point2D.Double(xml.getDoubleProperty("offsetX"), |
1319 |
xml.getDoubleProperty("offsetY")));
|
1320 |
|
1321 |
if (xml.contains("proj")) { |
1322 |
vp.proj = CRSFactory.getCRS(xml.getStringProperty("proj"));
|
1323 |
} |
1324 |
|
1325 |
//vp.setScale(xml.getDoubleProperty("scale"));
|
1326 |
vp.refreshExtent(); |
1327 |
return vp;
|
1328 |
} |
1329 |
|
1330 |
/**
|
1331 |
* <p>Fast clone implementation: creates and returns a clone of this view port using XML entities.</p>
|
1332 |
* <p>Isn't a <i>deepclone</i> to avoid unnecessary memory consumption.</p>
|
1333 |
*
|
1334 |
* @return the new view port
|
1335 |
*
|
1336 |
* @see #createFromXML(XMLEntity)
|
1337 |
*/
|
1338 |
public ViewPort cloneViewPort() {
|
1339 |
return createFromXML(getXMLEntity());
|
1340 |
} |
1341 |
|
1342 |
/**
|
1343 |
* <p>Returns a <code>String</code> representation of the main values of this view port: <code>{@linkplain #extent}</code>,
|
1344 |
* <code>{@linkplain #adjustedExtent}</code>, <code>{@linkplain #imageSize}</code>, <code>{@linkplain #scale}</code>, and <code>{@linkplain #trans}</code>.</p>
|
1345 |
*
|
1346 |
* @return a <code>string</code> representation of the main values of this view port
|
1347 |
*/
|
1348 |
public String toString() { |
1349 |
|
1350 |
String str;
|
1351 |
str = "Datos del viewPort:\nExtent=" + extent + "\nadjustedExtent=" + |
1352 |
adjustedExtent + "\nimageSize=" + imageSize + "\nescale=" + scale + |
1353 |
"\ntrans=" + trans;
|
1354 |
|
1355 |
return str;
|
1356 |
} |
1357 |
|
1358 |
/**
|
1359 |
* <p>Sets the position and size of the clipping rectangle.</p>
|
1360 |
*
|
1361 |
* @param rectView the clipping rectangle to set
|
1362 |
*/
|
1363 |
public void setClipRect(Rectangle2D rectView) { |
1364 |
cliprect=rectView; |
1365 |
} |
1366 |
|
1367 |
/**
|
1368 |
* <p>Converts and returns the {@link Rectangle2D Rectangle2D}, that is in <i>map
|
1369 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using an <i>inverse transform</i> with
|
1370 |
* the transformation affine information in the {@link #trans #trans} attribute.</p>
|
1371 |
*
|
1372 |
* @param r the 2D rectangle in <i>map coordinates</i>
|
1373 |
* @return 2D rectangle equivalent in <i>screen coordinates</i> (pixels)
|
1374 |
*
|
1375 |
* @see #toMapRectangle(Rectangle2D)
|
1376 |
* @see #fromMapDistance(double)
|
1377 |
* @see #fromMapPoint(Point2D)
|
1378 |
*/
|
1379 |
public Rectangle2D fromMapRectangle(Rectangle2D r) { |
1380 |
Rectangle2D rect=new Rectangle2D.Double(); |
1381 |
Point2D p1=fromMapPoint((int)r.getX(),(int)r.getY()); |
1382 |
Point2D p2=fromMapPoint((int)r.getMaxX(),(int)r.getMaxY()); |
1383 |
rect.setFrameFromDiagonal(p1,p2); |
1384 |
return rect;
|
1385 |
} |
1386 |
|
1387 |
/**
|
1388 |
* <p>Recalculates the current <code>{@linkplain #extent}</code> using an scale. It's necessary execute {@linkplain #refreshExtent()} after.</p>
|
1389 |
*
|
1390 |
* @param s the scale to set
|
1391 |
*
|
1392 |
* @deprecated since 07/09/07, use {@linkplain MapContext#setScaleView(long)}
|
1393 |
*/
|
1394 |
public void setScale(long s){ |
1395 |
double x=extent.getX();
|
1396 |
double y=extent.getY();
|
1397 |
double escalaX = imageSize.getWidth() / extent.getWidth();
|
1398 |
double w=imageSize.getWidth() / s;
|
1399 |
double h=imageSize.getHeight() / s;
|
1400 |
double difw = escalaX/s;
|
1401 |
|
1402 |
double x1 = (-x * difw) -
|
1403 |
x+ |
1404 |
extent.getWidth()/2;
|
1405 |
double y1 = (-y * difw) -
|
1406 |
y + |
1407 |
extent.getHeight()/2;
|
1408 |
double w1=extent.getWidth()*difw;
|
1409 |
double h1=extent.getHeight()*difw;
|
1410 |
extent.setRect(-x1,-y1,w1,h1); |
1411 |
} |
1412 |
} |