root / trunk / libraries / libFMap / src / com / iver / cit / gvsig / fmap / ViewPort.java @ 36203
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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 com.iver.cit.gvsig.fmap; |
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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 com.iver.cit.gvsig.fmap.crs.CRSFactory; |
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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 #setExtent(Rectangle2D)
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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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* 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>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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if (adjustable == adjustableExtent){
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return;
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} |
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adjustableExtent = adjustable; |
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this.updateDrawVersion();
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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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* <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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* <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) Math.round(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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*
|
| 437 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
| 438 |
*
|
| 439 |
* @see #fromMapPoint(Point2D)
|
| 440 |
* @see AffineTransform#transform(Point2D, Point2D)
|
| 441 |
*/
|
| 442 |
public Point2D fromMapPoint(double x, double y) { |
| 443 |
Point2D.Double pWorld = new Point2D.Double(x, y); |
| 444 |
Point2D.Double pScreen = new Point2D.Double(); |
| 445 |
|
| 446 |
try {
|
| 447 |
trans.transform(pWorld, pScreen); |
| 448 |
} catch (Exception e) { |
| 449 |
System.err.print(e.getMessage());
|
| 450 |
} |
| 451 |
|
| 452 |
return pScreen;
|
| 453 |
} |
| 454 |
|
| 455 |
/**
|
| 456 |
* <p>Converts and returns the 2D point argument, that is in <i>map
|
| 457 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using
|
| 458 |
* the affine transformation in the {@link #trans #trans} attribute.</p>
|
| 459 |
*
|
| 460 |
* @param point the 2D point in <i>map coordinates</i>
|
| 461 |
*
|
| 462 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
| 463 |
*
|
| 464 |
* @see #toMapPoint(Point2D)
|
| 465 |
* @see #fromMapPoint(double, double)
|
| 466 |
*/
|
| 467 |
public Point2D fromMapPoint(Point2D point) { |
| 468 |
return fromMapPoint(point.getX(), point.getY());
|
| 469 |
} |
| 470 |
|
| 471 |
/**
|
| 472 |
* <p>Converts and returns the 2D point <code>(x,y)</code>, that is in <i>screen coordinates</i>
|
| 473 |
* (pixels) to <i>map coordinates</i> using
|
| 474 |
* the affine transformation in the {@link #trans #trans} attribute.</p>
|
| 475 |
*
|
| 476 |
* @param x the <code>x</code> <i>screen coordinate</i> of a 2D point
|
| 477 |
* @param y the <code>y</code> <i>screen coordinate</i> of a 2D point
|
| 478 |
*
|
| 479 |
* @return 2D point equivalent in <i>map coordinates</i>
|
| 480 |
*
|
| 481 |
* @see #toMapPoint(Point2D)
|
| 482 |
* @see #fromMapPoint(double, double)
|
| 483 |
*/
|
| 484 |
public Point2D toMapPoint(int x, int y) { |
| 485 |
Point pScreen = new Point(x, y); |
| 486 |
|
| 487 |
return toMapPoint(pScreen);
|
| 488 |
} |
| 489 |
|
| 490 |
/**
|
| 491 |
* <p>Converts and returns the {@link Rectangle2D Rectangle2D}, that is in <i>screen
|
| 492 |
* coordinates</i> (pixels) to <i>map coordinates</i> using {@linkplain #toMapDistance(int)},
|
| 493 |
* and {@linkplain #toMapPoint(int, int)}.</p>
|
| 494 |
*
|
| 495 |
* @param r the 2D rectangle in <i>screen coordinates</i> (pixels)
|
| 496 |
* @return 2D rectangle equivalent in <i>map coordinates</i>
|
| 497 |
*
|
| 498 |
* @see #fromMapRectangle(Rectangle2D)
|
| 499 |
* @see #toMapDistance(int)
|
| 500 |
* @see #toMapPoint(int, int)
|
| 501 |
*/
|
| 502 |
public Rectangle2D toMapRectangle(Rectangle2D r){ |
| 503 |
Rectangle2D rect=new Rectangle2D.Double(); |
| 504 |
Point2D p1=toMapPoint((int)r.getX(),(int)r.getY()); |
| 505 |
Point2D p2=toMapPoint((int)r.getMaxX(),(int)r.getMaxY()); |
| 506 |
rect.setFrameFromDiagonal(p1,p2); |
| 507 |
return rect;
|
| 508 |
} |
| 509 |
|
| 510 |
/**
|
| 511 |
* <p>Converts and returns the distance <code>d</code>, that is in <i>screen
|
| 512 |
* coordinates</i> to <i>map coordinates</i> using the transformation affine information
|
| 513 |
* in the {@link #trans #trans} attribute.</p>
|
| 514 |
*
|
| 515 |
* @param d distance in pixels
|
| 516 |
*
|
| 517 |
* @return distance equivalent in <i>map coordinates</i>
|
| 518 |
*
|
| 519 |
* @see #fromMapDistance(double)
|
| 520 |
* @see AffineTransform
|
| 521 |
*/
|
| 522 |
public double toMapDistance(int d) { |
| 523 |
double dist = d / trans.getScaleX();
|
| 524 |
|
| 525 |
return dist;
|
| 526 |
} |
| 527 |
|
| 528 |
/**
|
| 529 |
* <p>Converts and returns the 2D point argument, that is in <i>screen coordinates</i>
|
| 530 |
* (pixels) to <i>map coordinates</i> using the
|
| 531 |
* inverse affine transformation of the {@link #trans #trans} attribute.</p>
|
| 532 |
*
|
| 533 |
* @param pScreen the 2D point in <i>screen coordinates</i> (pixels)
|
| 534 |
*
|
| 535 |
* @return 2D point equivalent in <i>map coordinates</i>
|
| 536 |
*
|
| 537 |
* @see #toMapPoint(int, int)
|
| 538 |
* @see AffineTransform#createInverse()
|
| 539 |
* @see AffineTransform#transform(Point2D, Point2D)
|
| 540 |
*/
|
| 541 |
public Point2D toMapPoint(Point2D pScreen) { |
| 542 |
Point2D.Double pWorld = new Point2D.Double(); |
| 543 |
AffineTransform at;
|
| 544 |
|
| 545 |
try {
|
| 546 |
at = trans.createInverse(); |
| 547 |
at.transform(pScreen, pWorld); |
| 548 |
} catch (NoninvertibleTransformException e) { |
| 549 |
throw new RuntimeException("Non invertible transform Exception",e); |
| 550 |
} |
| 551 |
|
| 552 |
return pWorld;
|
| 553 |
} |
| 554 |
|
| 555 |
/**
|
| 556 |
* <p>Returns the real distance (in <i>world coordinates</i>) at the graphic layers of two 2D points
|
| 557 |
* (in <i>map coordinates</i>) of the plane where is selected the <i>extent</i>.</p>
|
| 558 |
* <p>If the projection of this view is UTM, considers the Earth curvature.</p>
|
| 559 |
*
|
| 560 |
* @param pt1 a 2D point in <i>map coordinates</i>
|
| 561 |
* @param pt2 another 2D point in <i>map coordinates</i>
|
| 562 |
*
|
| 563 |
* @return the distance in meters between the two points 2D
|
| 564 |
*
|
| 565 |
* @see GeoCalc#distanceVincenty(Point2D, Point2D)
|
| 566 |
*/
|
| 567 |
public double distanceWorld(Point2D pt1, Point2D pt2) { |
| 568 |
double dist = -1; |
| 569 |
dist = pt1.distance(pt2); |
| 570 |
|
| 571 |
if ((proj != null) && !(proj.isProjected())) { |
| 572 |
dist = new GeoCalc(proj).distanceVincenty(proj.toGeo(pt1),
|
| 573 |
proj.toGeo(pt2)); |
| 574 |
return dist;
|
| 575 |
} |
| 576 |
return (dist*MapContext.getDistanceTrans2Meter()[getMapUnits()]);
|
| 577 |
} |
| 578 |
|
| 579 |
/**
|
| 580 |
* <p>Sets as extent and adjusted extent of this view port, the previous. Recalculating
|
| 581 |
* its parameters.</p>
|
| 582 |
*
|
| 583 |
* @see #getExtents()
|
| 584 |
* @see #calculateAffineTransform()
|
| 585 |
*/
|
| 586 |
public void setPreviousExtent() { |
| 587 |
this.updateDrawVersion();
|
| 588 |
extent = extents.removePrev(); |
| 589 |
|
| 590 |
//Calcula la transformaci?n af?n
|
| 591 |
calculateAffineTransform(); |
| 592 |
|
| 593 |
// Lanzamos los eventos de extent cambiado
|
| 594 |
callExtentChanged(getAdjustedExtent()); |
| 595 |
} |
| 596 |
|
| 597 |
/**
|
| 598 |
* <p>Gets the area selected by user using some tool.</p>
|
| 599 |
*
|
| 600 |
* <p>When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom out</i> tools,
|
| 601 |
* but also zooming to a selected feature or shape) the extent that covers that
|
| 602 |
* area is the value returned by this method. It is not the actual area shown
|
| 603 |
* because it doesn't care about the aspect ratio of the image size of the view. However, any
|
| 604 |
* part of the real world contained in this extent is shown in the view.</p>
|
| 605 |
*
|
| 606 |
* <p>If you are looking for the complete extent currently shown, you must use the
|
| 607 |
* {@linkplain #getAdjustedExtent()} method.</p>
|
| 608 |
*
|
| 609 |
* @return the current extent
|
| 610 |
*
|
| 611 |
* @see #setExtent(Rectangle2D)
|
| 612 |
* @see #getAdjustedExtent()
|
| 613 |
* @see #setPreviousExtent()
|
| 614 |
* @see #getExtents()
|
| 615 |
*/
|
| 616 |
public Rectangle2D getExtent() { |
| 617 |
return extent;
|
| 618 |
} |
| 619 |
|
| 620 |
/**
|
| 621 |
* <p>Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
| 622 |
* <ul>
|
| 623 |
* <li>Stores the previous extent.
|
| 624 |
* <li>Calculates the new extent using <code>r</code>:
|
| 625 |
* <pre>extent = new Rectangle2D.Double(r.getMinX() - 0.1, r.getMinY() - 0.1, r.getWidth() + 0.2, r.getHeight() + 0.2);</pre>
|
| 626 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new scale, adjusted extent, affine transformation between
|
| 627 |
* map and screen coordinates, the real world coordinates equivalent to 1 pixel, and the real world coordinates equivalent to 3 pixels.
|
| 628 |
* <li>Notifies all {@link ViewPortListener ViewPortListener} registered that the extent has changed.
|
| 629 |
* </ul>
|
| 630 |
* </p>
|
| 631 |
*
|
| 632 |
* @param r the new extent
|
| 633 |
*
|
| 634 |
* @see #getExtent()
|
| 635 |
* @see #getExtents()
|
| 636 |
* @see #calculateAffineTransform()
|
| 637 |
* @see #setPreviousExtent()
|
| 638 |
*/
|
| 639 |
public void setExtent(Rectangle2D r) { |
| 640 |
Rectangle2D newExtent=null; |
| 641 |
|
| 642 |
//Esto comprueba que el extent no es de anchura o altura = "0"
|
| 643 |
//y si es as? lo redimensiona.
|
| 644 |
if (r!=null &&((r.getWidth() == 0) || (r.getHeight() == 0))) { |
| 645 |
newExtent = new Rectangle2D.Double(r.getMinX() - 0.1, |
| 646 |
r.getMinY() - 0.1, r.getWidth() + 0.2, r.getHeight() + 0.2); |
| 647 |
} else {
|
| 648 |
newExtent = r; |
| 649 |
} |
| 650 |
if (this.extent != null && this.extent.equals(newExtent)){ |
| 651 |
return;
|
| 652 |
} |
| 653 |
if (extent != null) { |
| 654 |
extents.put(extent); |
| 655 |
} |
| 656 |
this.updateDrawVersion();
|
| 657 |
this.extent = newExtent;
|
| 658 |
|
| 659 |
//Calcula la transformaci?n af?n
|
| 660 |
calculateAffineTransform(); |
| 661 |
|
| 662 |
// Lanzamos los eventos de extent cambiado
|
| 663 |
callExtentChanged(getAdjustedExtent()); |
| 664 |
} |
| 665 |
|
| 666 |
/**
|
| 667 |
* <p>Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
| 668 |
* <ul>
|
| 669 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new scale, adjusted extent, affine transformation between
|
| 670 |
* map and screen coordinates, the real world coordinates equivalent to 1 pixel, and the real world coordinates equivalent to 3 pixels.
|
| 671 |
* <li>Notifies to all {@link ViewPortListener ViewPortListener} registered that the extent has changed.
|
| 672 |
* </ul>
|
| 673 |
* </p>
|
| 674 |
*
|
| 675 |
* @see #setExtent(Rectangle2D)
|
| 676 |
* @see #calculateAffineTransform()
|
| 677 |
*/
|
| 678 |
public void refreshExtent() { |
| 679 |
//this.scale = scale;
|
| 680 |
|
| 681 |
//Calcula la transformaci?n af?n
|
| 682 |
calculateAffineTransform(); |
| 683 |
|
| 684 |
// Lanzamos los eventos de extent cambiado
|
| 685 |
callExtentChanged(getAdjustedExtent()); |
| 686 |
} |
| 687 |
|
| 688 |
/**
|
| 689 |
* <p>Calculates and returns using the current projection of this view port, the scale that
|
| 690 |
* is the extent in <i>screen coordinates</i> from the image in <i>map coordinates</i>.</p>
|
| 691 |
*
|
| 692 |
* @return the scale <i>extent / image size</i> projected by this view port
|
| 693 |
*
|
| 694 |
* @deprecated since 07/09/07, use {@linkplain MapContext#getScaleView()}
|
| 695 |
*/
|
| 696 |
public double getScale() { |
| 697 |
return proj.getScale(extent.getMinX(), extent.getMaxX(),
|
| 698 |
imageSize.getWidth(), dpi); |
| 699 |
} |
| 700 |
|
| 701 |
/**
|
| 702 |
* <p>Affine transformation between <i>map 2D coordinates</i> to <i>screen 2D coordinates</i> (pixels),
|
| 703 |
* preserving the "straightness" and "parallelism" of the lines.</p>
|
| 704 |
*
|
| 705 |
* @return the affine transformation
|
| 706 |
*
|
| 707 |
* @see #setAffineTransform(AffineTransform)
|
| 708 |
* @see #calculateAffineTransform()
|
| 709 |
*/
|
| 710 |
public AffineTransform getAffineTransform() { |
| 711 |
return trans;
|
| 712 |
} |
| 713 |
|
| 714 |
/**
|
| 715 |
* <p>Returns the size of the image projected.</p>
|
| 716 |
*
|
| 717 |
* @return the image size
|
| 718 |
*
|
| 719 |
* @see #setImageSize(Dimension)
|
| 720 |
* @see #getImageHeight()
|
| 721 |
* @see #getImageWidth()
|
| 722 |
*/
|
| 723 |
public Dimension getImageSize() { |
| 724 |
return imageSize;
|
| 725 |
} |
| 726 |
|
| 727 |
/**
|
| 728 |
* <p>Sets the size of the image projected, recalculating the parameters of this view port.</p>
|
| 729 |
*
|
| 730 |
* @param imageSize the image size
|
| 731 |
*
|
| 732 |
* @see #getImageSize()
|
| 733 |
* @see #calculateAffineTransform()
|
| 734 |
*/
|
| 735 |
public void setImageSize(Dimension imageSize) { |
| 736 |
if (this.imageSize == null || (!this.imageSize.equals(imageSize))){ |
| 737 |
this.updateDrawVersion();
|
| 738 |
this.imageSize = imageSize;
|
| 739 |
calculateAffineTransform(); |
| 740 |
} |
| 741 |
} |
| 742 |
|
| 743 |
/**
|
| 744 |
* <p>Notifies to all view port listeners registered, that the adjusted extent of this view port
|
| 745 |
* has changed.</p>
|
| 746 |
*
|
| 747 |
* @param newRect the new adjusted extend
|
| 748 |
*
|
| 749 |
* @see #refreshExtent()
|
| 750 |
* @see #setExtent(Rectangle2D)
|
| 751 |
* @see #setPreviousExtent()
|
| 752 |
* @see ExtentEvent
|
| 753 |
* @see ViewPortListener
|
| 754 |
*/
|
| 755 |
protected void callExtentChanged(Rectangle2D newRect) { |
| 756 |
ExtentEvent ev = ExtentEvent.createExtentEvent(newRect); |
| 757 |
|
| 758 |
for (int i = 0; i < listeners.size(); i++) { |
| 759 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
| 760 |
listener.extentChanged(ev); |
| 761 |
} |
| 762 |
} |
| 763 |
|
| 764 |
/**
|
| 765 |
* <p>Notifies to all view port listeners registered, that the background color of this view port
|
| 766 |
* has changed.</p>
|
| 767 |
*
|
| 768 |
* @param c the new background color
|
| 769 |
*
|
| 770 |
* @see #setBackColor(Color)
|
| 771 |
* @see ColorEvent
|
| 772 |
* @see ViewPortListener
|
| 773 |
*/
|
| 774 |
private void callColorChanged(Color c) { |
| 775 |
ColorEvent ce = ColorEvent.createColorEvent(c); |
| 776 |
|
| 777 |
for (int i = 0; i < listeners.size(); i++) { |
| 778 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
| 779 |
listener.backColorChanged(ce); |
| 780 |
} |
| 781 |
} |
| 782 |
|
| 783 |
/**
|
| 784 |
* <p>Notifies to all view port listeners registered, that the projection of this view port
|
| 785 |
* has changed.</p>
|
| 786 |
*
|
| 787 |
* @param projection the new projection
|
| 788 |
*
|
| 789 |
* @see #setProjection(IProjection)
|
| 790 |
* @see ProjectionEvent
|
| 791 |
* @see ViewPortListener
|
| 792 |
*/
|
| 793 |
private void callProjectionChanged(IProjection projection) { |
| 794 |
ProjectionEvent ev = ProjectionEvent.createProjectionEvent(projection); |
| 795 |
|
| 796 |
for (int i = 0; i < listeners.size(); i++) { |
| 797 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
| 798 |
listener.projectionChanged(ev); |
| 799 |
} |
| 800 |
} |
| 801 |
|
| 802 |
/**
|
| 803 |
* <p>Calculates the affine transformation between the {@link #extent extent} in <i>map 2D coordinates</i> to
|
| 804 |
* the image area in the screen, in <i>screen 2D coordinates</i> (pixels).</p>
|
| 805 |
*
|
| 806 |
* <p>This process recalculates some parameters of this view port:<br>
|
| 807 |
*
|
| 808 |
* <ul>
|
| 809 |
* <li>The new {@link #scale scale} .
|
| 810 |
* <li>The new {@link #adjustedExtent adjustedExtent} .
|
| 811 |
* <li>The new {@link #trans trans} .
|
| 812 |
* <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
| 813 |
* <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
| 814 |
* </ul>
|
| 815 |
* </p>
|
| 816 |
*
|
| 817 |
* @see #getAffineTransform()
|
| 818 |
* @see #setAffineTransform(AffineTransform)
|
| 819 |
* @see #refreshExtent()
|
| 820 |
* @see #setExtent(Rectangle2D)
|
| 821 |
* @see #setImageSize(Dimension)
|
| 822 |
* @see #setPreviousExtent()
|
| 823 |
* @see #createFromXML(XMLEntity)
|
| 824 |
* @see AffineTransform
|
| 825 |
*/
|
| 826 |
private void calculateAffineTransform() { |
| 827 |
if ((imageSize == null) || (extent == null) || |
| 828 |
(imageSize.getWidth() <= 0) || (imageSize.getHeight() <= 0)) { |
| 829 |
return;
|
| 830 |
} |
| 831 |
|
| 832 |
AffineTransform escalado = new AffineTransform(); |
| 833 |
AffineTransform translacion = new AffineTransform(); |
| 834 |
|
| 835 |
double escalaX;
|
| 836 |
double escalaY;
|
| 837 |
|
| 838 |
escalaX = imageSize.getWidth() / extent.getWidth(); |
| 839 |
escalaY = imageSize.getHeight() / extent.getHeight(); |
| 840 |
|
| 841 |
double xCenter = extent.getCenterX();
|
| 842 |
double yCenter = extent.getCenterY();
|
| 843 |
double newHeight;
|
| 844 |
double newWidth;
|
| 845 |
|
| 846 |
adjustedExtent = new Rectangle2D.Double(); |
| 847 |
|
| 848 |
if (adjustableExtent) {
|
| 849 |
if (escalaX < escalaY) {
|
| 850 |
scale = escalaX; |
| 851 |
newHeight = imageSize.getHeight() / scale; |
| 852 |
adjustedExtent.setRect(xCenter - (extent.getWidth() / 2.0),
|
| 853 |
yCenter - (newHeight / 2.0), extent.getWidth(), newHeight);
|
| 854 |
} else {
|
| 855 |
scale = escalaY; |
| 856 |
newWidth = imageSize.getWidth() / scale; |
| 857 |
adjustedExtent.setRect(xCenter - (newWidth / 2.0),
|
| 858 |
yCenter - (extent.getHeight() / 2.0), newWidth,
|
| 859 |
extent.getHeight()); |
| 860 |
} |
| 861 |
escalado.setToScale(scale, -scale); |
| 862 |
} |
| 863 |
else { // adjusted is same as extent |
| 864 |
scale = escalaX; |
| 865 |
adjustedExtent.setFrame(extent); |
| 866 |
escalado.setToScale(escalaX, -escalaY); |
| 867 |
} |
| 868 |
|
| 869 |
translacion.setToTranslation(-getAdjustedExtent().getX(), |
| 870 |
-getAdjustedExtent().getY() - getAdjustedExtent().getHeight()); |
| 871 |
|
| 872 |
AffineTransform offsetTrans = new AffineTransform(); |
| 873 |
offsetTrans.setToTranslation(offset.getX(), offset.getY()); |
| 874 |
|
| 875 |
trans.setToIdentity(); |
| 876 |
trans.concatenate(offsetTrans); |
| 877 |
trans.concatenate(escalado); |
| 878 |
|
| 879 |
trans.concatenate(translacion); |
| 880 |
|
| 881 |
// Calculamos las distancias de 1 pixel y 3 pixel con esa transformaci?n
|
| 882 |
// de coordenadas, de forma que est?n precalculadas para cuando las necesitemos
|
| 883 |
AffineTransform at;
|
| 884 |
|
| 885 |
try {
|
| 886 |
at = trans.createInverse(); |
| 887 |
|
| 888 |
java.awt.Point pPixel = new java.awt.Point(1, 1); |
| 889 |
Point2D.Float pProv = new Point2D.Float(); |
| 890 |
at.deltaTransform(pPixel, pProv); |
| 891 |
|
| 892 |
dist1pixel = pProv.x; |
| 893 |
dist3pixel = 3 * pProv.x;
|
| 894 |
} catch (NoninvertibleTransformException e) { |
| 895 |
System.err.println("transformada afin = " + trans.toString()); |
| 896 |
System.err.println("extent = " + extent.toString() + |
| 897 |
" imageSize= " + imageSize.toString());
|
| 898 |
throw new RuntimeException("Non invertible transform Exception",e); |
| 899 |
} |
| 900 |
} |
| 901 |
|
| 902 |
/**
|
| 903 |
* <p>Sets the offset.</p>
|
| 904 |
* <p>The offset is the position where start drawing the map.</p>
|
| 905 |
*
|
| 906 |
* @param p 2D point that represents the offset in pixels
|
| 907 |
*
|
| 908 |
* @see #getOffset()
|
| 909 |
*/
|
| 910 |
public void setOffset(Point2D p) { |
| 911 |
if (!offset.equals(p)){
|
| 912 |
this.updateDrawVersion();
|
| 913 |
offset = p; |
| 914 |
} |
| 915 |
} |
| 916 |
|
| 917 |
/**
|
| 918 |
* <p>Gets the offset.</p>
|
| 919 |
* <p>The offset is the position where start drawing the map.</p>
|
| 920 |
*
|
| 921 |
* @return 2D point that represents the offset in pixels
|
| 922 |
*
|
| 923 |
* @see #setOffset(Point2D)
|
| 924 |
*/
|
| 925 |
public Point2D getOffset() { |
| 926 |
return offset;
|
| 927 |
} |
| 928 |
|
| 929 |
/**
|
| 930 |
* <p>Sets the background color.</p>
|
| 931 |
*
|
| 932 |
* @param c the new background color
|
| 933 |
*
|
| 934 |
* @see #getBackColor()
|
| 935 |
*/
|
| 936 |
public void setBackColor(Color c) { |
| 937 |
if (!c.equals(this.backColor)){ |
| 938 |
this.updateDrawVersion();
|
| 939 |
backColor = c; |
| 940 |
callColorChanged(backColor); |
| 941 |
} |
| 942 |
} |
| 943 |
|
| 944 |
/**
|
| 945 |
* <p>Gets the background color.</p>
|
| 946 |
*
|
| 947 |
* @return the background color of the view
|
| 948 |
*
|
| 949 |
* @see #setBackColor(Color)
|
| 950 |
*/
|
| 951 |
public Color getBackColor() { |
| 952 |
return backColor;
|
| 953 |
} |
| 954 |
|
| 955 |
/**
|
| 956 |
* <p>Returns the extent currently covered by the view adjusted (scaled) to the image size aspect.</p>
|
| 957 |
*
|
| 958 |
* @return extent of the view adjusted to the image size aspect
|
| 959 |
*
|
| 960 |
* @see #setAdjustable(boolean)
|
| 961 |
*/
|
| 962 |
public Rectangle2D getAdjustedExtent() { |
| 963 |
if (cliprect!=null){ |
| 964 |
return adjustedExtent.createIntersection(cliprect);
|
| 965 |
} |
| 966 |
return adjustedExtent;
|
| 967 |
} |
| 968 |
|
| 969 |
/**
|
| 970 |
* <p>Returns the measurement unit of this view port used for measuring distances and displaying information.</p>
|
| 971 |
*
|
| 972 |
* @return the measurement unit of this view used for measuring distances and displaying information
|
| 973 |
*
|
| 974 |
* @see #setDistanceUnits(int)
|
| 975 |
*/
|
| 976 |
public int getDistanceUnits() { |
| 977 |
return distanceUnits;
|
| 978 |
} |
| 979 |
/**
|
| 980 |
* <p>Returns the measurement unit of this view port used for measuring areas and displaying information.</p>
|
| 981 |
*
|
| 982 |
* @return the measurement unit of this view used for measuring areas and displaying information
|
| 983 |
*
|
| 984 |
* @see #setDistanceUnits(int)
|
| 985 |
*/
|
| 986 |
public int getDistanceArea() { |
| 987 |
return distanceArea;
|
| 988 |
} |
| 989 |
/**
|
| 990 |
* <p>Sets the measurement unit of this view port used for measuring distances and displaying information.</p>
|
| 991 |
*
|
| 992 |
* @param distanceUnits the measurement unit of this view used for measuring distances and displaying information
|
| 993 |
*
|
| 994 |
* @see #getDistanceUnits()
|
| 995 |
*/
|
| 996 |
public void setDistanceUnits(int distanceUnits) { |
| 997 |
this.distanceUnits = distanceUnits;
|
| 998 |
} |
| 999 |
/**
|
| 1000 |
* <p>Sets the measurement unit of this view port used for measuring areas and displaying information.</p>
|
| 1001 |
*
|
| 1002 |
* @param distanceUnits the measurement unit of this view used for measuring areas and displaying information
|
| 1003 |
*
|
| 1004 |
* @see #getDistanceUnits()
|
| 1005 |
*/
|
| 1006 |
public void setDistanceArea(int distanceArea) { |
| 1007 |
this.distanceArea = distanceArea;
|
| 1008 |
} |
| 1009 |
/**
|
| 1010 |
* <p>Gets the measurement unit used by this view port for the map.</p>
|
| 1011 |
*
|
| 1012 |
* @return Returns the current map measure unit
|
| 1013 |
*
|
| 1014 |
* @see #setMapUnits(int)
|
| 1015 |
*/
|
| 1016 |
public int getMapUnits() { |
| 1017 |
return mapUnits;
|
| 1018 |
} |
| 1019 |
|
| 1020 |
/**
|
| 1021 |
* <p>Sets the measurement unit used by this view port for the map.</p>
|
| 1022 |
*
|
| 1023 |
* @param mapUnits the new map measure unit
|
| 1024 |
*
|
| 1025 |
* @see #getMapUnits()
|
| 1026 |
*/
|
| 1027 |
public void setMapUnits(int mapUnits) { |
| 1028 |
this.mapUnits = mapUnits;
|
| 1029 |
} |
| 1030 |
|
| 1031 |
/**
|
| 1032 |
* <p>Gets the width in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
|
| 1033 |
* <p>Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
| 1034 |
*
|
| 1035 |
* <ul>
|
| 1036 |
* <li>The new {@link #scale scale} .
|
| 1037 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
| 1038 |
* <li>The new {@link #trans trans} .
|
| 1039 |
* <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
| 1040 |
* <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
| 1041 |
* </ul>
|
| 1042 |
* </p>
|
| 1043 |
*
|
| 1044 |
* @see #getImageHeight()
|
| 1045 |
* @see #getImageSize()
|
| 1046 |
* @see #setImageSize(Dimension)
|
| 1047 |
*/
|
| 1048 |
public int getImageWidth() { |
| 1049 |
return imageSize.width;
|
| 1050 |
} |
| 1051 |
|
| 1052 |
/**
|
| 1053 |
* <p>Gets the height in <i>screen coordinates</i> of the rectangle where the image is displayed.</p>
|
| 1054 |
* <p>Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
| 1055 |
*
|
| 1056 |
* <ul>
|
| 1057 |
* <li>The new {@link #scale scale} .
|
| 1058 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
| 1059 |
* <li>The new {@link #trans trans} .
|
| 1060 |
* <li>The new real world coordinates equivalent to 1 pixel ({@link #dist1pixel dist1pixel}) .
|
| 1061 |
* <li>The new real world coordinates equivalent to 3 pixels ({@link #dist3pixel dist3pixel}) .
|
| 1062 |
* </ul>
|
| 1063 |
* </p>
|
| 1064 |
*
|
| 1065 |
* @see #getImageWidth()
|
| 1066 |
* @see #getImageSize()
|
| 1067 |
* @see #setImageSize(Dimension)
|
| 1068 |
*/
|
| 1069 |
public int getImageHeight() { |
| 1070 |
return imageSize.height;
|
| 1071 |
} |
| 1072 |
|
| 1073 |
/**
|
| 1074 |
* <p>Gets the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</p>
|
| 1075 |
*
|
| 1076 |
* @return the distance
|
| 1077 |
*
|
| 1078 |
* @see #setDist1pixel(double)
|
| 1079 |
*/
|
| 1080 |
public double getDist1pixel() { |
| 1081 |
return dist1pixel;
|
| 1082 |
} |
| 1083 |
|
| 1084 |
/**
|
| 1085 |
* <p>Sets the distance in <i>world coordinates</i> equivalent to 1 pixel in the view with the current extent.</p>
|
| 1086 |
*
|
| 1087 |
* @param dist1pixel the distance
|
| 1088 |
*
|
| 1089 |
* @see #getDist1pixel()
|
| 1090 |
*/
|
| 1091 |
public void setDist1pixel(double dist1pixel) { |
| 1092 |
if (dist1pixel == this.dist1pixel){ |
| 1093 |
return;
|
| 1094 |
} |
| 1095 |
this.updateDrawVersion();
|
| 1096 |
this.dist1pixel = dist1pixel;
|
| 1097 |
} |
| 1098 |
|
| 1099 |
/**
|
| 1100 |
* <p>Gets the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</p>
|
| 1101 |
*
|
| 1102 |
* @return the distance
|
| 1103 |
*
|
| 1104 |
* @see #setDist3pixel(double)
|
| 1105 |
*/
|
| 1106 |
public double getDist3pixel() { |
| 1107 |
return dist3pixel;
|
| 1108 |
} |
| 1109 |
|
| 1110 |
/**
|
| 1111 |
* <p>Sets the distance in <i>world coordinates</i> equivalent to 3 pixels in the view with the current extent.</p>
|
| 1112 |
*
|
| 1113 |
* @param dist3pixel the distance
|
| 1114 |
*
|
| 1115 |
* @see #getDist3pixel()
|
| 1116 |
*/
|
| 1117 |
public void setDist3pixel(double dist3pixel) { |
| 1118 |
if (this.dist3pixel == dist3pixel){ |
| 1119 |
return;
|
| 1120 |
} |
| 1121 |
this.updateDrawVersion();
|
| 1122 |
this.dist3pixel = dist3pixel;
|
| 1123 |
} |
| 1124 |
|
| 1125 |
/**
|
| 1126 |
* <p>Returns the last previous extents of this view port.</p>
|
| 1127 |
*
|
| 1128 |
* @return the last previous extents of this view port
|
| 1129 |
*
|
| 1130 |
* @see #setPreviousExtent()
|
| 1131 |
*/
|
| 1132 |
public ExtentHistory getExtents() {
|
| 1133 |
return extents;
|
| 1134 |
} |
| 1135 |
|
| 1136 |
/**
|
| 1137 |
* <p>Gets the projection used in this view port.</p>
|
| 1138 |
*
|
| 1139 |
* @return projection used in this view port
|
| 1140 |
*
|
| 1141 |
* @see #setProjection(IProjection)
|
| 1142 |
*/
|
| 1143 |
public IProjection getProjection() {
|
| 1144 |
return proj;
|
| 1145 |
} |
| 1146 |
|
| 1147 |
/**
|
| 1148 |
* <p>Sets the projection to this view port.</p>
|
| 1149 |
*
|
| 1150 |
* @param proj the new projection
|
| 1151 |
*
|
| 1152 |
* @see #getProjection()
|
| 1153 |
*/
|
| 1154 |
public void setProjection(IProjection proj) { |
| 1155 |
if(this.proj == null || !this.proj.getAbrev().equals(proj.getAbrev())) { |
| 1156 |
this.updateDrawVersion();
|
| 1157 |
this.proj = proj;
|
| 1158 |
callProjectionChanged(proj); |
| 1159 |
} |
| 1160 |
} |
| 1161 |
|
| 1162 |
// -----------------------------------------------------------------------------------------------------------
|
| 1163 |
// NOTA PARA DESARROLLADORES SOBRE EL M?TODO "public void setAffineTransform(AffineTransform at)"
|
| 1164 |
// ==============================================================================================
|
| 1165 |
// Only used for print, should be removed, redefining the {@link RasterAdapter RasterAdapter} interface,
|
| 1166 |
// allowing it to receive a {@link ViewPortData ViewPortData} .
|
| 1167 |
// -----------------------------------------------------------------------------------------------------------
|
| 1168 |
|
| 1169 |
/**
|
| 1170 |
* <p>Sets only the affine transform to this view port, without updating dependent attributes.</p>
|
| 1171 |
* <p><b><i>This method could be problematic!</i></b></p>
|
| 1172 |
*
|
| 1173 |
* @param at the affine transform to set
|
| 1174 |
*
|
| 1175 |
* @see #getAffineTransform()
|
| 1176 |
* @see #calculateAffineTransform()
|
| 1177 |
*/
|
| 1178 |
public void setAffineTransform(AffineTransform at) |
| 1179 |
{
|
| 1180 |
this.trans = at;
|
| 1181 |
} |
| 1182 |
|
| 1183 |
/**
|
| 1184 |
* <p>Returns an XML entity that represents this view port instance:<br>
|
| 1185 |
* <ul>
|
| 1186 |
* <li>Properties:
|
| 1187 |
* <ul>
|
| 1188 |
* <li><i>className</i>: name of this class.
|
| 1189 |
* <li>If defined, the adjusted extent:
|
| 1190 |
* <ul>
|
| 1191 |
* <li><i>adjustedExtentX</i>: X coordinate of the adjusted extent.
|
| 1192 |
* <li><i>adjustedExtentY</i>: Y coordinate of the adjusted extent.
|
| 1193 |
* <li><i>adjustedExtentW</i>: width of the adjusted extent.
|
| 1194 |
* <li><i>adjustedExtentH</i>: height of the adjusted extent.
|
| 1195 |
* </ul>
|
| 1196 |
* <li>If defined, the background color:
|
| 1197 |
* <ul>
|
| 1198 |
* <li><i>backColor</i>: background color.
|
| 1199 |
* </ul>
|
| 1200 |
* <li>If defined, the clip:
|
| 1201 |
* <ul>
|
| 1202 |
* <li><i>clipX</i>: X coordinate of the clip.
|
| 1203 |
* <li><i>clipY</i>: Y coordinate of clip.
|
| 1204 |
* <li><i>clipW</i>: width of the clip.
|
| 1205 |
* <li><i>clipH</i>: height of the clip.
|
| 1206 |
* </ul>
|
| 1207 |
* <li><i>dist1pixel</i>: the distance in world coordinates equivalent to 1 pixel in the view.
|
| 1208 |
* <li><i>dist3pixel</i>: the distance in world coordinates equivalent to 3 pixels in the view.
|
| 1209 |
* <li><i>distanceUnits</i>: the distance measurement unit.
|
| 1210 |
* <li>If defined, the extent:
|
| 1211 |
* <ul>
|
| 1212 |
* <li><i>extentX</i>: X coordinate of the extent.
|
| 1213 |
* <li><i>extentY</i>: Y coordinate of the extent.
|
| 1214 |
* <li><i>extentW</i>: width of the extent.
|
| 1215 |
* <li><i>extentH</i>: height of the extent.
|
| 1216 |
* </ul>
|
| 1217 |
* <li><i>mapUnits</i>: the map measurement unit.
|
| 1218 |
* <li><i>offsetX</i>: X coordinate of the offset.
|
| 1219 |
* <li><i>offsetY</i>: Y coordinate of the offset.
|
| 1220 |
* <li>If defined, the projection:
|
| 1221 |
* <ul>
|
| 1222 |
* <li>If its defined, the projection:
|
| 1223 |
* <ul>
|
| 1224 |
* <li><i>proj</i>: the projection.</li>
|
| 1225 |
* </ul>
|
| 1226 |
* </ul>
|
| 1227 |
* <li><i>scale</i>: ratio between the size of <code>imageSize</code> and <code>extent</code>.
|
| 1228 |
* </ul>
|
| 1229 |
* <li>Child branches:
|
| 1230 |
* <ul>
|
| 1231 |
* <li>XML entity of the internal {@link ExtentHistory ExtentHistory} .
|
| 1232 |
* </ul>
|
| 1233 |
* </ul>
|
| 1234 |
*
|
| 1235 |
* @return the XML entity
|
| 1236 |
*
|
| 1237 |
* @see #createFromXML(XMLEntity)
|
| 1238 |
*/
|
| 1239 |
public XMLEntity getXMLEntity() {
|
| 1240 |
XMLEntity xml = new XMLEntity();
|
| 1241 |
xml.putProperty("className",this.getClass().getName()); |
| 1242 |
|
| 1243 |
if (adjustedExtent != null) { |
| 1244 |
xml.putProperty("adjustedExtentX", adjustedExtent.getX());
|
| 1245 |
xml.putProperty("adjustedExtentY", adjustedExtent.getY());
|
| 1246 |
xml.putProperty("adjustedExtentW", adjustedExtent.getWidth());
|
| 1247 |
xml.putProperty("adjustedExtentH", adjustedExtent.getHeight());
|
| 1248 |
} |
| 1249 |
|
| 1250 |
if (backColor != null) |
| 1251 |
xml.putProperty("backColor", StringUtilities.color2String(backColor));
|
| 1252 |
|
| 1253 |
if (clip != null) { |
| 1254 |
xml.putProperty("clipX", clip.getX());
|
| 1255 |
xml.putProperty("clipY", clip.getY());
|
| 1256 |
xml.putProperty("clipW", clip.getWidth());
|
| 1257 |
xml.putProperty("clipH", clip.getHeight());
|
| 1258 |
} |
| 1259 |
|
| 1260 |
xml.putProperty("dist1pixel", dist1pixel);
|
| 1261 |
xml.putProperty("dist3pixel", dist3pixel);
|
| 1262 |
xml.putProperty("distanceUnits", distanceUnits);
|
| 1263 |
|
| 1264 |
if (extent != null) { |
| 1265 |
xml.putProperty("extentX", extent.getX());
|
| 1266 |
xml.putProperty("extentY", extent.getY());
|
| 1267 |
xml.putProperty("extentW", extent.getWidth());
|
| 1268 |
xml.putProperty("extentH", extent.getHeight());
|
| 1269 |
} |
| 1270 |
|
| 1271 |
xml.addChild(extents.getXMLEntity()); |
| 1272 |
xml.putProperty("mapUnits", mapUnits);
|
| 1273 |
xml.putProperty("offsetX", offset.getX());
|
| 1274 |
xml.putProperty("offsetY", offset.getY());
|
| 1275 |
|
| 1276 |
if (proj != null) { |
| 1277 |
xml.putProperty("proj", proj.getAbrev());
|
| 1278 |
} |
| 1279 |
|
| 1280 |
xml.putProperty("scale", scale);
|
| 1281 |
xml.putProperty("zoomFactor", getZoomFactor());
|
| 1282 |
|
| 1283 |
return xml;
|
| 1284 |
} |
| 1285 |
|
| 1286 |
/**
|
| 1287 |
* <p>Creates a new <code>ViewPort</code> from an XML entity.</p>
|
| 1288 |
*
|
| 1289 |
* @param xml an XML entity
|
| 1290 |
*
|
| 1291 |
* @return the new <code>ViewPort</code>
|
| 1292 |
*
|
| 1293 |
* @see #getXMLEntity()
|
| 1294 |
* @see #createFromXML(XMLEntity)
|
| 1295 |
*/
|
| 1296 |
public static ViewPort createFromXML03(XMLEntity xml) { |
| 1297 |
ViewPort vp = new ViewPort(null); |
| 1298 |
|
| 1299 |
if (xml.contains("adjustedExtentX")) { |
| 1300 |
vp.adjustedExtent = new Rectangle2D.Double(xml.getDoubleProperty( |
| 1301 |
"adjustedExtentX"),
|
| 1302 |
xml.getDoubleProperty("adjustedExtentY"),
|
| 1303 |
xml.getDoubleProperty("adjustedExtentW"),
|
| 1304 |
xml.getDoubleProperty("adjustedExtentH"));
|
| 1305 |
} |
| 1306 |
|
| 1307 |
if (xml.contains("backColor")) { |
| 1308 |
vp.setBackColor(StringUtilities.string2Color(xml.getStringProperty( |
| 1309 |
"backColor")));
|
| 1310 |
} |
| 1311 |
|
| 1312 |
if (xml.contains("clipX")) { |
| 1313 |
vp.clip = new Rectangle2D.Double(xml.getDoubleProperty("clipX"), |
| 1314 |
xml.getDoubleProperty("clipY"),
|
| 1315 |
xml.getDoubleProperty("clipW"),
|
| 1316 |
xml.getDoubleProperty("clipH"));
|
| 1317 |
} |
| 1318 |
|
| 1319 |
vp.setDist1pixel(xml.getDoubleProperty("dist1pixel"));
|
| 1320 |
vp.setDist3pixel(xml.getDoubleProperty("dist3pixel"));
|
| 1321 |
vp.setDistanceUnits(xml.getIntProperty("distanceUnits"));
|
| 1322 |
vp.extents = ExtentHistory.createFromXML03(xml.getChild(0));
|
| 1323 |
|
| 1324 |
if (xml.contains("extentX")) { |
| 1325 |
vp.setExtent(new Rectangle2D.Double(xml.getDoubleProperty("extentX"), |
| 1326 |
xml.getDoubleProperty("extentY"),
|
| 1327 |
xml.getDoubleProperty("extentW"),
|
| 1328 |
xml.getDoubleProperty("extentH")));
|
| 1329 |
|
| 1330 |
//Calcula la transformaci?n af?n
|
| 1331 |
vp.calculateAffineTransform(); |
| 1332 |
|
| 1333 |
// Lanzamos los eventos de extent cambiado
|
| 1334 |
// vp.callExtentListeners(vp.adjustedExtent);
|
| 1335 |
} |
| 1336 |
|
| 1337 |
vp.setMapUnits(xml.getIntProperty("mapUnits"));
|
| 1338 |
vp.setOffset(new Point2D.Double(xml.getDoubleProperty("offsetX"), |
| 1339 |
xml.getDoubleProperty("offsetY")));
|
| 1340 |
|
| 1341 |
if (xml.contains("proj")) { |
| 1342 |
vp.proj = CRSFactory.getCRS(xml.getStringProperty("proj"));
|
| 1343 |
} |
| 1344 |
|
| 1345 |
//vp.setScale(xml.getDoubleProperty("scale"));
|
| 1346 |
vp.refreshExtent(); |
| 1347 |
return vp;
|
| 1348 |
} |
| 1349 |
|
| 1350 |
/**
|
| 1351 |
* <p>Creates a new <code>ViewPort</code> from an XML entity.</p>
|
| 1352 |
*
|
| 1353 |
* @param xml an XML entity
|
| 1354 |
*
|
| 1355 |
* @return the new <code>ViewPort</code>
|
| 1356 |
*
|
| 1357 |
* @see #getXMLEntity()
|
| 1358 |
* @see #createFromXML03(XMLEntity)
|
| 1359 |
*/
|
| 1360 |
public static ViewPort createFromXML(XMLEntity xml) { |
| 1361 |
ViewPort vp = new ViewPort(null); |
| 1362 |
|
| 1363 |
if (xml.contains("adjustedExtentX")) { |
| 1364 |
vp.adjustedExtent = new Rectangle2D.Double(xml.getDoubleProperty( |
| 1365 |
"adjustedExtentX"),
|
| 1366 |
xml.getDoubleProperty("adjustedExtentY"),
|
| 1367 |
xml.getDoubleProperty("adjustedExtentW"),
|
| 1368 |
xml.getDoubleProperty("adjustedExtentH"));
|
| 1369 |
} |
| 1370 |
|
| 1371 |
if (xml.contains("backColor")) { |
| 1372 |
vp.setBackColor(StringUtilities.string2Color(xml.getStringProperty( |
| 1373 |
"backColor")));
|
| 1374 |
}else {
|
| 1375 |
vp.setBackColor(Color.white);
|
| 1376 |
} |
| 1377 |
|
| 1378 |
if (xml.contains("clipX")) { |
| 1379 |
vp.clip = new Rectangle2D.Double(xml.getDoubleProperty("clipX"), |
| 1380 |
xml.getDoubleProperty("clipY"),
|
| 1381 |
xml.getDoubleProperty("clipW"),
|
| 1382 |
xml.getDoubleProperty("clipH"));
|
| 1383 |
} |
| 1384 |
|
| 1385 |
vp.setDist1pixel(xml.getDoubleProperty("dist1pixel"));
|
| 1386 |
vp.setDist3pixel(xml.getDoubleProperty("dist3pixel"));
|
| 1387 |
vp.setDistanceUnits(xml.getIntProperty("distanceUnits"));
|
| 1388 |
if (xml.contains("distanceArea")){ |
| 1389 |
vp.setDistanceArea(xml.getIntProperty("distanceArea"));
|
| 1390 |
}else{
|
| 1391 |
vp.setDistanceArea(xml.getIntProperty("distanceUnits"));
|
| 1392 |
} |
| 1393 |
vp.extents = ExtentHistory.createFromXML(xml.getChild(0));
|
| 1394 |
|
| 1395 |
if (xml.contains("extentX")) { |
| 1396 |
vp.setExtent(new Rectangle2D.Double(xml.getDoubleProperty("extentX"), |
| 1397 |
xml.getDoubleProperty("extentY"),
|
| 1398 |
xml.getDoubleProperty("extentW"),
|
| 1399 |
xml.getDoubleProperty("extentH")));
|
| 1400 |
|
| 1401 |
//Calcula la transformaci?n af?n
|
| 1402 |
vp.calculateAffineTransform(); |
| 1403 |
|
| 1404 |
// Lanzamos los eventos de extent cambiado
|
| 1405 |
// vp.callExtentListeners(vp.adjustedExtent);
|
| 1406 |
} |
| 1407 |
|
| 1408 |
vp.setMapUnits(xml.getIntProperty("mapUnits"));
|
| 1409 |
vp.setOffset(new Point2D.Double(xml.getDoubleProperty("offsetX"), |
| 1410 |
xml.getDoubleProperty("offsetY")));
|
| 1411 |
|
| 1412 |
if (xml.contains("proj")) { |
| 1413 |
vp.proj = CRSFactory.getCRS(xml.getStringProperty("proj"));
|
| 1414 |
} |
| 1415 |
|
| 1416 |
if (xml.contains("zoomFactor")) { |
| 1417 |
vp.setZoomFactor(xml.getDoubleProperty("zoomFactor"));
|
| 1418 |
} |
| 1419 |
|
| 1420 |
//vp.setScale(xml.getDoubleProperty("scale"));
|
| 1421 |
vp.refreshExtent(); |
| 1422 |
return vp;
|
| 1423 |
} |
| 1424 |
|
| 1425 |
/**
|
| 1426 |
* <p>Fast clone implementation: creates and returns a clone of this view port using XML entities.</p>
|
| 1427 |
* <p>Isn't a <i>deepclone</i> to avoid unnecessary memory consumption.</p>
|
| 1428 |
*
|
| 1429 |
* @return the new view port
|
| 1430 |
*
|
| 1431 |
* @see #createFromXML(XMLEntity)
|
| 1432 |
*/
|
| 1433 |
public ViewPort cloneViewPort() {
|
| 1434 |
return createFromXML(getXMLEntity());
|
| 1435 |
} |
| 1436 |
|
| 1437 |
/**
|
| 1438 |
* <p>Returns a <code>String</code> representation of the main values of this view port: <code>{@linkplain #extent}</code>,
|
| 1439 |
* <code>{@linkplain #adjustedExtent}</code>, <code>{@linkplain #imageSize}</code>, <code>{@linkplain #scale}</code>, and <code>{@linkplain #trans}</code>.</p>
|
| 1440 |
*
|
| 1441 |
* @return a <code>string</code> representation of the main values of this view port
|
| 1442 |
*/
|
| 1443 |
public String toString() { |
| 1444 |
|
| 1445 |
String str;
|
| 1446 |
str = "Datos del viewPort:\nExtent=" + extent + "\nadjustedExtent=" + |
| 1447 |
adjustedExtent + "\nimageSize=" + imageSize + "\nescale=" + scale + |
| 1448 |
"\ntrans=" + trans;
|
| 1449 |
|
| 1450 |
return str;
|
| 1451 |
} |
| 1452 |
|
| 1453 |
/**
|
| 1454 |
* <p>Sets the position and size of the clipping rectangle.</p>
|
| 1455 |
*
|
| 1456 |
* @param rectView the clipping rectangle to set
|
| 1457 |
*/
|
| 1458 |
public void setClipRect(Rectangle2D rectView) { |
| 1459 |
this.updateDrawVersion();
|
| 1460 |
cliprect=rectView; |
| 1461 |
} |
| 1462 |
|
| 1463 |
/**
|
| 1464 |
* <p>Converts and returns the {@link Rectangle2D Rectangle2D}, that is in <i>map
|
| 1465 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using an <i>inverse transform</i> with
|
| 1466 |
* the transformation affine information in the {@link #trans #trans} attribute.</p>
|
| 1467 |
*
|
| 1468 |
* @param r the 2D rectangle in <i>map coordinates</i>
|
| 1469 |
* @return 2D rectangle equivalent in <i>screen coordinates</i> (pixels)
|
| 1470 |
*
|
| 1471 |
* @see #toMapRectangle(Rectangle2D)
|
| 1472 |
* @see #fromMapDistance(double)
|
| 1473 |
* @see #fromMapPoint(Point2D)
|
| 1474 |
*/
|
| 1475 |
public Rectangle2D fromMapRectangle(Rectangle2D r) { |
| 1476 |
Rectangle2D rect=new Rectangle2D.Double(); |
| 1477 |
Point2D p1=fromMapPoint((int)r.getX(),(int)r.getY()); |
| 1478 |
Point2D p2=fromMapPoint((int)r.getMaxX(),(int)r.getMaxY()); |
| 1479 |
rect.setFrameFromDiagonal(p1,p2); |
| 1480 |
return rect;
|
| 1481 |
} |
| 1482 |
|
| 1483 |
/**
|
| 1484 |
* <p>Recalculates the current <code>{@linkplain #extent}</code> using an scale. It's necessary execute {@linkplain #refreshExtent()} after.</p>
|
| 1485 |
*
|
| 1486 |
* @param s the scale to set
|
| 1487 |
*
|
| 1488 |
* @deprecated since 07/09/07, use {@linkplain MapContext#setScaleView(long)}
|
| 1489 |
*/
|
| 1490 |
public void setScale(long s){ |
| 1491 |
double x=extent.getX();
|
| 1492 |
double y=extent.getY();
|
| 1493 |
double escalaX = imageSize.getWidth() / extent.getWidth();
|
| 1494 |
double w=imageSize.getWidth() / s;
|
| 1495 |
double h=imageSize.getHeight() / s;
|
| 1496 |
double difw = escalaX/s;
|
| 1497 |
|
| 1498 |
double x1 = (-x * difw) -
|
| 1499 |
x+ |
| 1500 |
extent.getWidth()/2;
|
| 1501 |
double y1 = (-y * difw) -
|
| 1502 |
y + |
| 1503 |
extent.getHeight()/2;
|
| 1504 |
double w1=extent.getWidth()*difw;
|
| 1505 |
double h1=extent.getHeight()*difw;
|
| 1506 |
extent.setRect(-x1,-y1,w1,h1); |
| 1507 |
} |
| 1508 |
|
| 1509 |
|
| 1510 |
public long getDrawVersion() { |
| 1511 |
return this.drawVersion; |
| 1512 |
} |
| 1513 |
|
| 1514 |
protected void updateDrawVersion(){ |
| 1515 |
this.drawVersion++;
|
| 1516 |
} |
| 1517 |
|
| 1518 |
|
| 1519 |
private double zoomFactor = 1d; |
| 1520 |
|
| 1521 |
public double getZoomFactor() { |
| 1522 |
return zoomFactor;
|
| 1523 |
} |
| 1524 |
|
| 1525 |
public void setZoomFactor(double z) { |
| 1526 |
this.zoomFactor = z;
|
| 1527 |
} |
| 1528 |
|
| 1529 |
|
| 1530 |
} |