root / branches / v2_0_0_prep / libraries / libFMap_mapcontext / src / org / gvsig / fmap / mapcontext / ViewPort.java @ 33613
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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.Toolkit; |
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import java.awt.color.ColorSpace; |
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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 java.util.Iterator; |
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import org.cresques.cts.GeoCalc; |
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import org.cresques.cts.IProjection; |
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import org.cresques.cts.UTM; |
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import org.gvsig.compat.CompatLocator; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.GeometryManager; |
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import org.gvsig.fmap.geom.Geometry.SUBTYPES; |
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import org.gvsig.fmap.geom.exception.CreateEnvelopeException; |
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import org.gvsig.fmap.geom.primitive.Envelope; |
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import org.gvsig.fmap.mapcontext.events.ColorEvent; |
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import org.gvsig.fmap.mapcontext.events.ExtentEvent; |
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import org.gvsig.fmap.mapcontext.events.ProjectionEvent; |
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import org.gvsig.fmap.mapcontext.events.listeners.ViewPortListener; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.dynobject.DynStruct; |
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import org.gvsig.tools.persistence.PersistenceManager; |
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import org.gvsig.tools.persistence.Persistent; |
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import org.gvsig.tools.persistence.PersistentState; |
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import org.gvsig.tools.persistence.exception.PersistenceException; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.tools.lang.Cloneable; |
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/**
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* <p>
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* <code>ViewPort</code> class represents the logic needed to transform a
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* rectangular area of a map to the available area in screen to display it.
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* </p>
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*
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* <p>
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* Includes an affine transformation, between the rectangular area selected of
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* the external map, in its own <i>map coordinates</i>, to the rectangular area
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* available of a view in <i>screen coordinates</i>.
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* </p>
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*
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* <p>
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* Elements:
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* <ul>
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* <li><i>extent</i>: the area selected of the map, in <i>map coordinates</i>.
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* <li><i>imageSize</i>: width and height in pixels (<i>screen coordinates</i>)
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* of the area available in screen to display the area selected of the map.
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* <li><i>adjustedExtent</i>: the area selected must be an scale of
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* <i>imageSize</i>.<br>
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* This implies adapt the extent, preserving and centering it, and adding around
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* the needed area to fill all the image size. That added area will be extracted
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* from the original map, wherever exists, and filled with the background color
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* wherever not.
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* <li><i>scale</i>: the scale between the adjusted extent and the image size.
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* <li><i>backColor</i>: the default background color in the view, if there is
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* no map.
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* <li><i>trans</i>: the affine transformation.
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* <li><i>proj</i>: map projection used in this view.
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* <li><i>distanceUnits</i>: distance measurement units, of data in screen.
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* <li><i>mapUnits</i>: measurement units, of data in map.
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* <li><i>extents</i>: an {@link ExtentHistory ExtentHistory} with the last
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* previous extents.
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* <li><i>offset</i>: position in pixels of the available rectangular area,
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* where start drawing the map.
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* <li><i>dist1pixel</i>: the distance in <i>world coordinates</i> equivalent to
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* 1 pixel in the view with the current extent.
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* <li><i>dist3pixel</i>: the distance in <i>world coordinates</i> equivalent to
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* 3 pixels in the view with the current extent.
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* <li><i>listeners</i>: list with the {@link ViewPortListener ViewPortListener}
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* registered.
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* </ul>
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* </p>
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*
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* @author Vicente Caballero Navarro
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*/
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public class ViewPort implements Persistent, Cloneable { |
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private static final String FIELD_DISTANCE_AREA = "distanceArea"; |
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private static final String FIELD_IMAGE_SIZE = "imageSize"; |
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private static final String FIELD_PROJ = "proj"; |
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private static final String FIELD_OFFSET = "offset"; |
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private static final String FIELD_MAP_UNITS = "mapUnits"; |
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private static final String FIELD_EXTENT = "extent"; |
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private static final String FIELD_EXTENTS = "extents"; |
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private static final String FIELD_DISTANCE_UNITS = "distanceUnits"; |
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private static final String FIELD_DIST3PIXEL = "dist3pixel"; |
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private static final String FIELD_DIST1PIXEL = "dist1pixel"; |
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private static final String FIELD_CLIP = "clip"; |
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private static final String FIELD_BACK_COLOR = "backColor"; |
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private static final String FIELD_ADJUSTED_EXTENT = "adjustedExtent"; |
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private static final GeometryManager geomManager = |
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GeometryLocator.getGeometryManager(); |
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private static final Logger logger = |
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LoggerFactory.getLogger(ViewPort.class); |
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/**
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* <p>
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* Screen resolution in <i>dots-per-inch</i>. Useful to calculate the
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* geographic scale of the view.
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* </p>
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*
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* @see Toolkit#getScreenResolution()
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* @see #getScale()
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*/
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private static int dpi = java.awt.Toolkit.getDefaultToolkit() |
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.getScreenResolution(); |
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/**
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* <p>
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* Area selected by user using some tool.
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* </p>
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*
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* <p>
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* When the zoom changes (for instance when using the zoom in or zoom out
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* tools, but also zooming to a selected feature or shape) the extent that
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* covers that area is the value returned by this method. It is not the
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* actual area shown in the view because it does not care about the aspect
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* ratio of the available area. However, any part of the real world
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* contained in this extent is shown in the view.
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* </p>
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* <p>
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* Probably this is not what you are looking for. If you are looking for the
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* complete extent currently shown, you must use
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* {@linkplain #getAdjustedExtent()} method which returns the extent that
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* contains this one but regarding the current view's aspect ratio.
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* </p>
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*
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* @see #getExtent()
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* @see #setEnvelope(Envelope)
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*/
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protected Rectangle2D extent; |
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/**
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* <p>
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* Location and dimensions of the extent adjusted to the image size.
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* </p>
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*
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* @see #getAdjustedExtent()
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*/
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protected Rectangle2D adjustedExtent; |
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/**
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* Draw version of the context. It's used for know when de componend has
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* changed any visualization property
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*
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* @see getDrawVersion
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* @see updateDrawVersion
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*/
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private long drawVersion = 0L; |
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/**
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* <p>
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* History with the last extents of the view.
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* </p>
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*
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* @see #setPreviousExtent()
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* @see #getExtents()
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*/
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protected ExtentHistory extents = new ExtentHistory(); |
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/**
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* <p>
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* Size in <i>screen coordinates</i> of the rectangle where the image is
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* displayed.
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* </p>
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* <p>
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* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
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*
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* <ul>
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* <li>The new {@link #scale scale} .
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* <li>The new {@link #adjustedExtent adjustableExtent} .
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* <li>The new {@link #trans trans} .
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* <li>The new real world coordinates equivalent to 1 pixel (
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* {@link #dist1pixel dist1pixel}) .
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* <li>The new real world coordinates equivalent to 3 pixels (
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* {@link #dist3pixel dist3pixel}) .
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* </ul>
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* </p>
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*
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* @see #getImageSize()
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* @see #getImageHeight()
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* @see #getImageWidth()
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* @see #setImageSize(Dimension)
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*/
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private Dimension imageSize; |
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/**
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* <p>
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* the affine transformation between the {@link #extent extent} in <i>map 2D
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* coordinates</i> to the image area in the screen, in <i>screen 2D
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* coordinates</i> (pixels).
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* </p>
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*
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* @see AffineTransform
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*
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* @see #getAffineTransform()
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* @see #setAffineTransform(AffineTransform)
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* @see #calculateAffineTransform()
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*/
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private AffineTransform trans = new AffineTransform(); |
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/**
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* <p>
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* Measurement unit used for measuring distances and displaying information.
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* </p>
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*
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* @see #getDistanceUnits()
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* @see #setDistanceUnits(int)
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*/
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private int distanceUnits = 1; |
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/**
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* <p>
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* Measurement unit used for measuring areas and displaying information.
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* </p>
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*
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* @see #getDistanceArea()
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* @see #setDistanceArea(int)
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*/
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private int distanceArea = 1; |
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/**
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* <p>
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* Measurement unit used by this view port for the map.
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* </p>
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*
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* @see #getMapUnits()
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* @see #setMapUnits(int)
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*/
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private int mapUnits = 1; |
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/**
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* <p>
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* Array with the {@link ViewPortListener ViewPortListener}s registered to
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* this view port.
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* </p>
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*
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* @see #addViewPortListener(ViewPortListener)
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* @see #removeViewPortListener(ViewPortListener)
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*/
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private ArrayList listeners = new ArrayList(); |
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/**
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* <p>
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* The offset is the position where start drawing the map.
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* </p>
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* <p>
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* The offset of a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
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* <i>View</i> is always (0, 0) because the drawing area fits with the full
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* window area. But in a <a href="http://www.gvsig.gva.es/">gvSIG</a>'s
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* <i>Layout</i> it's up to the place where the <code>FFrameView</code> is
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* located.
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* </p>
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*
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* @see #getOffset()
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* @see #setOffset(Point2D)
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*/
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private Point2D offset = new Point2D.Double(0, 0); |
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/**
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* <p>
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* Clipping area.
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* </p>
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*/
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// private Rectangle2D clip;
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/**
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* <p>
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* Background color of this view.
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* </p>
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*
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* @see #getBackColor()
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* @see #setBackColor(Color)
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*/
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private Color backColor = null; // Color.WHITE; |
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/**
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* <p>
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* Information about the map projection used in this view.
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* </p>
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*
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* @see #getProjection()
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* @see #setProjection(IProjection)
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*/
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private IProjection proj;
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/**
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* <p>
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* Represents the distance in <i>world coordinates</i> equivalent to 1 pixel
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* in the view with the current extent.
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* </p>
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*
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* @see #getDist1pixel()
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* @see #setDist1pixel(double)
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*/
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private double dist1pixel; |
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/**
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* <p>
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* Represents the distance in <i>world coordinates</i> equivalent to 3
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* pixels in the view with the current extent.
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* </p>
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*
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* @see #getDist3pixel()
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* @see #setDist3pixel(double)
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*/
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private double dist3pixel; |
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/**
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* <p>
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* Ratio between the size of <code>imageSize</code> and <code>extent</code>:
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* <br>
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* <i>
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*
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* <pre>
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* min{(imageSize.getHeight()/extent.getHeight(), imageSize.getWidth()/extent.getWidth())}
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* </pre>
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*
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* </i>
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* </p>
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*/
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private double scale; |
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/**
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* <p>
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* Clipping area.
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* </p>
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*
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* @see #setClipRect(Rectangle2D)
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*/
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private Rectangle2D cliprect; |
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/**
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* <p>
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* Enables or disables the <i>"adjustable extent"</i> mode.
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* </p>
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*
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* <p>
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* When calculates the affine transform, if
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* <ul>
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* <li><i>enabled</i>: the new <code>adjustedExtent</code> will have the (X,
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* Y) coordinates of the <code>extent</code> and an area that will be an
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* scale of the image size. That area will have different height or width
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* (not both) of the extent according the least ratio (height or width) in
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*
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* <pre>
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* image.size/extent.size"
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* </pre>.
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* <li><i>disabled</i>: the new <code>adjustedExtent</code> will be like
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* <code>extent</code>.
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* </ul>
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* </p>
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*
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* @see #setAdjustable(boolean)
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*/
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private boolean adjustableExtent = true; |
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public ViewPort() {
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} |
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/**
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* <p>
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* Creates a new view port with the information of the projection in
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* <code>proj</code> argument, and default configuration:
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* </p>
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* <p>
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* <ul>
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* <li><i><code>distanceUnits</code></i> = meters
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* <li><i><code>mapUnits</code></i> = meters
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* <li><i><code>backColor</code></i> = <i>undefined</i>
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* <li><i><code>offset</code></i> = <code>new Point2D.Double(0, 0);</code>
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* </ul>
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* </p>
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*
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* @param proj
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* information of the projection for this view port
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*/
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public ViewPort(IProjection proj) {
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// Por defecto
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this.proj = proj;
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} |
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/**
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* <p>
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* Changes the status of the <i>"adjustable extent"</i> option to enabled or
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* disabled.
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* </p>
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*
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* <p>
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* If view port isn't adjustable, won't bear in mind the aspect ratio of the
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* available rectangular area to calculate the affine transform from the
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* original map in real coordinates. (Won't scale the image to adapt it to
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* the available rectangular area).
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* </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>
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* Appends the specified {@link ViewPortListener ViewPortListener} listener
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* if weren't.
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* </p>
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*
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* @param arg0
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* 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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} |
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return false; |
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} |
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|
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/**
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* <p>
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* Removes the specified {@link ViewPortListener ViewPortListener} listener,
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* if existed.
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* </p>
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*
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* @param arg0
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* 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>
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* 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
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* transform</i> with the transformation affine information in the
|
496 |
* {@link #trans #trans} attribute.
|
497 |
* </p>
|
498 |
*
|
499 |
* @param d
|
500 |
* distance in <i>map coordinates</i>
|
501 |
*
|
502 |
* @return distance equivalent in <i>screen coordinates</i>
|
503 |
*
|
504 |
* @see #toMapDistance(int)
|
505 |
* @see AffineTransform#deltaTransform(Point2D, Point2D)S
|
506 |
*/
|
507 |
public int fromMapDistance(double d) { |
508 |
Point2D.Double pWorld = new Point2D.Double(1, 1); |
509 |
Point2D.Double pScreen = new Point2D.Double(); |
510 |
|
511 |
try {
|
512 |
trans.deltaTransform(pWorld, pScreen); |
513 |
} catch (Exception e) { |
514 |
System.err.print(e.getMessage());
|
515 |
} |
516 |
|
517 |
return (int) (d * pScreen.x); |
518 |
} |
519 |
|
520 |
/**
|
521 |
* <p>
|
522 |
* Converts and returns the 2D point <code>(x,y)</code>, that is in <i>map
|
523 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
524 |
* transformation in the {@link #trans #trans} attribute.
|
525 |
* </p>
|
526 |
*
|
527 |
* @param x
|
528 |
* the <code>x</code> <i>map coordinate</i> of a 2D point
|
529 |
* @param y
|
530 |
* the <code>y</code> <i>map coordinate</i> of a 2D point
|
531 |
*
|
532 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
533 |
*
|
534 |
* @see #fromMapPoint(Point2D)
|
535 |
* @see AffineTransform#transform(Point2D, Point2D)
|
536 |
*/
|
537 |
public Point2D fromMapPoint(double x, double y) { |
538 |
Point2D.Double pWorld = new Point2D.Double(x, y); |
539 |
Point2D.Double pScreen = new Point2D.Double(); |
540 |
|
541 |
try {
|
542 |
trans.transform(pWorld, pScreen); |
543 |
} catch (Exception e) { |
544 |
System.err.print(e.getMessage());
|
545 |
} |
546 |
|
547 |
return pScreen;
|
548 |
} |
549 |
|
550 |
/**
|
551 |
* <p>
|
552 |
* Converts and returns the 2D point argument, that is in <i>map
|
553 |
* coordinates</i> to <i>screen coordinates</i> (pixels) using the affine
|
554 |
* transformation in the {@link #trans #trans} attribute.
|
555 |
* </p>
|
556 |
*
|
557 |
* @param point
|
558 |
* the 2D point in <i>map coordinates</i>
|
559 |
*
|
560 |
* @return 2D point equivalent in <i>screen coordinates</i> (pixels)
|
561 |
*
|
562 |
* @see #toMapPoint(Point2D)
|
563 |
* @see #fromMapPoint(double, double)
|
564 |
*/
|
565 |
public Point2D fromMapPoint(Point2D point) { |
566 |
return fromMapPoint(point.getX(), point.getY());
|
567 |
} |
568 |
|
569 |
/**
|
570 |
* <p>
|
571 |
* Converts and returns the 2D point <code>(x,y)</code>, that is in
|
572 |
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using the
|
573 |
* affine transformation in the {@link #trans #trans} attribute.
|
574 |
* </p>
|
575 |
*
|
576 |
* @param x
|
577 |
* the <code>x</code> <i>screen coordinate</i> of a 2D point
|
578 |
* @param y
|
579 |
* the <code>y</code> <i>screen coordinate</i> of a 2D point
|
580 |
*
|
581 |
* @return 2D point equivalent in <i>map coordinates</i>
|
582 |
*
|
583 |
* @see #toMapPoint(Point2D)
|
584 |
* @see #fromMapPoint(double, double)
|
585 |
*/
|
586 |
public Point2D toMapPoint(int x, int y) { |
587 |
Point2D pScreen = new Point2D.Double(x, y); |
588 |
|
589 |
return toMapPoint(pScreen);
|
590 |
} |
591 |
|
592 |
/**
|
593 |
* <p>
|
594 |
* Converts and returns the {@link Rectangle2D Rectangle2D}, that is in
|
595 |
* <i>screen coordinates</i> (pixels) to <i>map coordinates</i> using
|
596 |
* {@linkplain #toMapDistance(int)}, and {@linkplain #toMapPoint(int, int)}.
|
597 |
* </p>
|
598 |
*
|
599 |
* @param r
|
600 |
* the 2D rectangle in <i>screen coordinates</i> (pixels)
|
601 |
* @return 2D rectangle equivalent in <i>map coordinates</i>
|
602 |
*
|
603 |
* @see #fromMapRectangle(Rectangle2D)
|
604 |
* @see #toMapDistance(int)
|
605 |
* @see #toMapPoint(int, int)
|
606 |
*/
|
607 |
public Rectangle2D toMapRectangle(Rectangle2D r) { |
608 |
Rectangle2D rect = new Rectangle2D.Double(); |
609 |
Point2D p1 = toMapPoint((int) r.getX(), (int) r.getY()); |
610 |
Point2D p2 = toMapPoint((int) r.getMaxX(), (int) r.getMaxY()); |
611 |
rect.setFrameFromDiagonal(p1, p2); |
612 |
return rect;
|
613 |
} |
614 |
|
615 |
/**
|
616 |
* <p>
|
617 |
* Converts and returns the distance <code>d</code>, that is in <i>screen
|
618 |
* coordinates</i> to <i>map coordinates</i> using the transformation affine
|
619 |
* information in the {@link #trans #trans} attribute.
|
620 |
* </p>
|
621 |
*
|
622 |
* @param d
|
623 |
* distance in pixels
|
624 |
*
|
625 |
* @return distance equivalent in <i>map coordinates</i>
|
626 |
*
|
627 |
* @see #fromMapDistance(double)
|
628 |
* @see AffineTransform
|
629 |
*/
|
630 |
public double toMapDistance(int d) { |
631 |
double dist = d / trans.getScaleX();
|
632 |
|
633 |
return dist;
|
634 |
} |
635 |
|
636 |
/**
|
637 |
* <p>
|
638 |
* Converts and returns the 2D point argument, that is in <i>screen
|
639 |
* coordinates</i> (pixels) to <i>map coordinates</i> using the inverse
|
640 |
* affine transformation of the {@link #trans #trans} attribute.
|
641 |
* </p>
|
642 |
*
|
643 |
* @param pScreen
|
644 |
* the 2D point in <i>screen coordinates</i> (pixels)
|
645 |
*
|
646 |
* @return 2D point equivalent in <i>map coordinates</i>
|
647 |
*
|
648 |
* @see #toMapPoint(int, int)
|
649 |
* @see AffineTransform#createInverse()
|
650 |
* @see AffineTransform#transform(Point2D, Point2D)
|
651 |
*/
|
652 |
public Point2D toMapPoint(Point2D pScreen) { |
653 |
Point2D.Double pWorld = new Point2D.Double(); |
654 |
AffineTransform at;
|
655 |
|
656 |
try {
|
657 |
at = trans.createInverse(); |
658 |
at.transform(pScreen, pWorld); |
659 |
} catch (NoninvertibleTransformException e) { |
660 |
throw new RuntimeException("Non invertible transform Exception", e); |
661 |
} |
662 |
|
663 |
return pWorld;
|
664 |
} |
665 |
|
666 |
/**
|
667 |
* <p>
|
668 |
* Returns the real distance (in <i>world coordinates</i>) at the graphic
|
669 |
* layers of two 2D points (in <i>map coordinates</i>) of the plane where is
|
670 |
* selected the <i>extent</i>.
|
671 |
* </p>
|
672 |
* <p>
|
673 |
* If the projection of this view is UTM, considers the Earth curvature.
|
674 |
* </p>
|
675 |
*
|
676 |
* @param pt1
|
677 |
* a 2D point in <i>map coordinates</i>
|
678 |
* @param pt2
|
679 |
* another 2D point in <i>map coordinates</i>
|
680 |
*
|
681 |
* @return the distance in meters between the two points 2D
|
682 |
*
|
683 |
* @see GeoCalcImpl#distanceVincenty(Point2D, Point2D)
|
684 |
*/
|
685 |
public double distanceWorld(Point2D pt1, Point2D pt2) { |
686 |
double dist = -1; |
687 |
dist = pt1.distance(pt2); |
688 |
|
689 |
if ((proj != null) && !(proj instanceof UTM)) { |
690 |
dist = |
691 |
new GeoCalc(proj).distanceVincenty(proj.toGeo(pt1),
|
692 |
proj.toGeo(pt2)); |
693 |
return dist;
|
694 |
} |
695 |
return (dist * MapContext.getDistanceTrans2Meter()[getMapUnits()]);
|
696 |
} |
697 |
|
698 |
/**
|
699 |
* <p>
|
700 |
* Sets as extent and adjusted extent of this view port, the previous.
|
701 |
* Recalculating its parameters.
|
702 |
* </p>
|
703 |
*
|
704 |
* @see #getExtents()
|
705 |
* @see #calculateAffineTransform()
|
706 |
* @deprecated use {@link ViewPort#setPreviousEnvelope()}
|
707 |
*/
|
708 |
public void setPreviousExtent() { |
709 |
setPreviousEnvelope(); |
710 |
} |
711 |
|
712 |
/**
|
713 |
* <p>
|
714 |
* Sets as envelope and adjusted envelope of this view port, the previous.
|
715 |
* Recalculating its parameters.
|
716 |
* </p>
|
717 |
*
|
718 |
* @see #getExtents()
|
719 |
* @see #calculateAffineTransform()
|
720 |
*/
|
721 |
public void setPreviousEnvelope() { |
722 |
this.updateDrawVersion();
|
723 |
extent = extents.removePrev(); |
724 |
|
725 |
// Calcula la transformaci?n af?n
|
726 |
calculateAffineTransform(); |
727 |
|
728 |
// Lanzamos los eventos de extent cambiado
|
729 |
callExtentChanged(getAdjustedExtent()); |
730 |
} |
731 |
|
732 |
/**
|
733 |
* <p>
|
734 |
* Gets the area selected by user using some tool.
|
735 |
* </p>
|
736 |
*
|
737 |
* <p>
|
738 |
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
739 |
* out</i> tools, but also zooming to a selected feature or shape) the
|
740 |
* extent that covers that area is the value returned by this method. It is
|
741 |
* not the actual area shown because it doesn't care about the aspect ratio
|
742 |
* of the image size of the view. However, any part of the real world
|
743 |
* contained in this extent is shown in the view.
|
744 |
* </p>
|
745 |
*
|
746 |
* <p>
|
747 |
* If you are looking for the complete extent currently shown, you must use
|
748 |
* the {@linkplain #getAdjustedExtent()} method.
|
749 |
* </p>
|
750 |
*
|
751 |
* @return the current extent
|
752 |
*
|
753 |
* @see #setEnvelope(Envelope)
|
754 |
* @see #getAdjustedExtent()
|
755 |
* @see #setPreviousExtent()
|
756 |
* @see #getExtents()
|
757 |
*
|
758 |
* @deprecated use {@link ViewPort#getEnvelope()}
|
759 |
*/
|
760 |
public Rectangle2D getExtent() { |
761 |
return extent;
|
762 |
} |
763 |
|
764 |
/**
|
765 |
* <p>
|
766 |
* Gets the envelope selected by user using some tool.
|
767 |
* </p>
|
768 |
*
|
769 |
* <p>
|
770 |
* When the zoom changes (for instance using the <i>zoom in</i> or <i>zoom
|
771 |
* out</i> tools, but also zooming to a selected feature or shape) the
|
772 |
* envelope that covers that area is the value returned by this method. It
|
773 |
* is not the actual envelope shown because it doesn't care about the aspect
|
774 |
* ratio of the image size of the view. However, any part of the real world
|
775 |
* contained in this envelope is shown in the view.
|
776 |
* </p>
|
777 |
*
|
778 |
* <p>
|
779 |
* If you are looking for the complete extent currently shown, you must use
|
780 |
* the {@linkplain #getAdjustedEnvelope()} method.
|
781 |
* </p>
|
782 |
*
|
783 |
* @return the current envelope
|
784 |
*
|
785 |
* @see #setEnvelope(Envelope)
|
786 |
* @see #getAdjustedEnvelope()
|
787 |
* @see #setPreviousEnvelope()
|
788 |
* @see #getEnvelopes()
|
789 |
*/
|
790 |
public Envelope getEnvelope() {
|
791 |
if (this.extent == null) { |
792 |
return null; |
793 |
} |
794 |
try {
|
795 |
return geomManager.createEnvelope(extent.getMinX(),
|
796 |
extent.getMinY(), |
797 |
extent.getMaxX(), |
798 |
extent.getMaxY(), |
799 |
SUBTYPES.GEOM2D); |
800 |
// This class has to use Envelope instead of Rectangle2D. This catch
|
801 |
// will disappear
|
802 |
} catch (CreateEnvelopeException e) {
|
803 |
logger.error("Error creating the envelope");
|
804 |
} |
805 |
return null; |
806 |
} |
807 |
|
808 |
/**
|
809 |
* <p>
|
810 |
* Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
811 |
* <ul>
|
812 |
* <li>Stores the previous extent.
|
813 |
* <li>Calculates the new extent using <code>r</code>:
|
814 |
*
|
815 |
* <pre>
|
816 |
* extent =
|
817 |
* new Rectangle2D.Double(r.getMinX() - 0.1,
|
818 |
* r.getMinY() - 0.1,
|
819 |
* r.getWidth() + 0.2,
|
820 |
* r.getHeight() + 0.2);
|
821 |
* </pre>
|
822 |
*
|
823 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new
|
824 |
* scale, adjusted extent, affine transformation between map and screen
|
825 |
* coordinates, the real world coordinates equivalent to 1 pixel, and the
|
826 |
* real world coordinates equivalent to 3 pixels.
|
827 |
* <li>Notifies all {@link ViewPortListener ViewPortListener} registered
|
828 |
* that the extent has changed.
|
829 |
* </ul>
|
830 |
* </p>
|
831 |
*
|
832 |
* @param r
|
833 |
* the new extent
|
834 |
*
|
835 |
* @see #getExtent()
|
836 |
* @see #getExtents()
|
837 |
* @see #calculateAffineTransform()
|
838 |
* @see #setPreviousExtent()
|
839 |
*/
|
840 |
public void setEnvelope(Envelope r) { |
841 |
Rectangle2D newExtent = null; |
842 |
// Esto comprueba que el extent no es de anchura o altura = "0"
|
843 |
// y si es as? lo redimensiona.
|
844 |
if (r != null) { |
845 |
if ((r.getMaximum(0) - r.getMinimum(0) == 0) |
846 |
|| (r.getMaximum(1) - r.getMinimum(1) == 0)) { |
847 |
newExtent = |
848 |
new Rectangle2D.Double(r.getMinimum(0) - 0.1, |
849 |
r.getMinimum(1) - 0.1, |
850 |
r.getMaximum(0) - r.getMinimum(0) + 0.2, |
851 |
r.getMaximum(1) - r.getMinimum(1) + 0.2); |
852 |
} else {
|
853 |
newExtent = |
854 |
new Rectangle2D.Double(r.getMinimum(0), |
855 |
r.getMinimum(1),
|
856 |
Math.abs(r.getMaximum(0) - r.getMinimum(0)), |
857 |
Math.abs(r.getMaximum(1) - r.getMinimum(1))); |
858 |
} |
859 |
} |
860 |
|
861 |
if (this.extent != null && this.extent.equals(newExtent)) { |
862 |
return;
|
863 |
} |
864 |
if (extent != null) { |
865 |
extents.put(extent); |
866 |
} |
867 |
this.updateDrawVersion();
|
868 |
this.extent = newExtent;
|
869 |
|
870 |
// Calcula la transformaci?n af?n
|
871 |
calculateAffineTransform(); |
872 |
|
873 |
// Lanzamos los eventos de extent cambiado
|
874 |
callExtentChanged(getAdjustedExtent()); |
875 |
} |
876 |
|
877 |
/**
|
878 |
* <p>
|
879 |
* Changes the <i>extent</i> and <i>adjusted extent</i> of this view port:<br>
|
880 |
* <ul>
|
881 |
* <li>Executes {@linkplain #calculateAffineTransform()}: getting the new
|
882 |
* scale, adjusted extent, affine transformation between map and screen
|
883 |
* coordinates, the real world coordinates equivalent to 1 pixel, and the
|
884 |
* real world coordinates equivalent to 3 pixels.
|
885 |
* <li>Notifies to all {@link ViewPortListener ViewPortListener} registered
|
886 |
* that the extent has changed.
|
887 |
* </ul>
|
888 |
* </p>
|
889 |
*
|
890 |
* @see #setEnvelope(Envelope)
|
891 |
* @see #calculateAffineTransform()
|
892 |
*/
|
893 |
public void refreshExtent() { |
894 |
// this.scale = scale;
|
895 |
|
896 |
// Calcula la transformaci?n af?n
|
897 |
calculateAffineTransform(); |
898 |
|
899 |
// Lanzamos los eventos de extent cambiado
|
900 |
callExtentChanged(getAdjustedExtent()); |
901 |
} |
902 |
|
903 |
/**
|
904 |
* <p>
|
905 |
* Calculates and returns using the current projection of this view port,
|
906 |
* the scale that is the extent in <i>screen coordinates</i> from the image
|
907 |
* in <i>map coordinates</i>.
|
908 |
* </p>
|
909 |
*
|
910 |
* @return the scale <i>extent / image size</i> projected by this view port
|
911 |
*
|
912 |
* @deprecated since 07/09/07, use {@linkplain MapContext#getScaleView()}
|
913 |
*/
|
914 |
public double getScale() { |
915 |
return proj.getScale(extent.getMinX(),
|
916 |
extent.getMaxX(), |
917 |
imageSize.width, |
918 |
dpi); |
919 |
} |
920 |
|
921 |
/**
|
922 |
* <p>
|
923 |
* Affine transformation between <i>map 2D coordinates</i> to <i>screen 2D
|
924 |
* coordinates</i> (pixels), preserving the "straightness" and "parallelism"
|
925 |
* of the lines.
|
926 |
* </p>
|
927 |
*
|
928 |
* @return the affine transformation
|
929 |
*
|
930 |
* @see #setAffineTransform(AffineTransform)
|
931 |
* @see #calculateAffineTransform()
|
932 |
*/
|
933 |
public AffineTransform getAffineTransform() { |
934 |
return trans;
|
935 |
} |
936 |
|
937 |
/**
|
938 |
* <p>
|
939 |
* Returns the size of the image projected.
|
940 |
* </p>
|
941 |
*
|
942 |
* @return the image size
|
943 |
*
|
944 |
* @see #setImageSize(Dimension)
|
945 |
* @see #getImageHeight()
|
946 |
* @see #getImageWidth()
|
947 |
*/
|
948 |
public Dimension getImageSize() { |
949 |
return imageSize;
|
950 |
} |
951 |
|
952 |
/**
|
953 |
* <p>
|
954 |
* Sets the size of the image projected, recalculating the parameters of
|
955 |
* this view port.
|
956 |
* </p>
|
957 |
*
|
958 |
* @param imageSize
|
959 |
* the image size
|
960 |
*
|
961 |
* @see #getImageSize()
|
962 |
* @see #calculateAffineTransform()
|
963 |
*/
|
964 |
public void setImageSize(Dimension imageSize) { |
965 |
|
966 |
if (this.imageSize == null || (!this.imageSize.equals(imageSize))) { |
967 |
this.updateDrawVersion();
|
968 |
this.imageSize = imageSize;
|
969 |
calculateAffineTransform(); |
970 |
} |
971 |
} |
972 |
|
973 |
/**
|
974 |
* <p>
|
975 |
* Notifies to all view port listeners registered, that the adjusted extent
|
976 |
* of this view port has changed.
|
977 |
* </p>
|
978 |
*
|
979 |
* @param newRect
|
980 |
* the new adjusted extend
|
981 |
*
|
982 |
* @see #refreshExtent()
|
983 |
* @see #setEnvelope(Envelope)
|
984 |
* @see #setPreviousExtent()
|
985 |
* @see ExtentEvent
|
986 |
* @see ViewPortListener
|
987 |
*/
|
988 |
protected void callExtentChanged(Envelope newRect) { |
989 |
ExtentEvent ev = ExtentEvent.createExtentEvent(newRect); |
990 |
|
991 |
for (int i = 0; i < listeners.size(); i++) { |
992 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
993 |
listener.extentChanged(ev); |
994 |
} |
995 |
} |
996 |
|
997 |
/**
|
998 |
* <p>
|
999 |
* Notifies to all view port listeners registered, that the background color
|
1000 |
* of this view port has changed.
|
1001 |
* </p>
|
1002 |
*
|
1003 |
* @param c
|
1004 |
* the new background color
|
1005 |
*
|
1006 |
* @see #setBackColor(Color)
|
1007 |
* @see ColorEvent
|
1008 |
* @see ViewPortListener
|
1009 |
*/
|
1010 |
private void callColorChanged(Color c) { |
1011 |
ColorEvent ce = ColorEvent.createColorEvent(c); |
1012 |
|
1013 |
for (int i = 0; i < listeners.size(); i++) { |
1014 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
1015 |
listener.backColorChanged(ce); |
1016 |
} |
1017 |
} |
1018 |
|
1019 |
/**
|
1020 |
* <p>
|
1021 |
* Notifies to all view port listeners registered, that the projection of
|
1022 |
* this view port has changed.
|
1023 |
* </p>
|
1024 |
*
|
1025 |
* @param projection
|
1026 |
* the new projection
|
1027 |
*
|
1028 |
* @see #setProjection(IProjection)
|
1029 |
* @see ProjectionEvent
|
1030 |
* @see ViewPortListener
|
1031 |
*/
|
1032 |
private void callProjectionChanged(IProjection projection) { |
1033 |
ProjectionEvent ev = ProjectionEvent.createProjectionEvent(projection); |
1034 |
|
1035 |
for (int i = 0; i < listeners.size(); i++) { |
1036 |
ViewPortListener listener = (ViewPortListener) listeners.get(i); |
1037 |
listener.projectionChanged(ev); |
1038 |
} |
1039 |
} |
1040 |
|
1041 |
/**
|
1042 |
* <p>
|
1043 |
* Calculates the affine transformation between the {@link #extent extent}
|
1044 |
* in <i>map 2D coordinates</i> to the image area in the screen, in
|
1045 |
* <i>screen 2D coordinates</i> (pixels).
|
1046 |
* </p>
|
1047 |
*
|
1048 |
* <p>
|
1049 |
* This process recalculates some parameters of this view port:<br>
|
1050 |
*
|
1051 |
* <ul>
|
1052 |
* <li>The new {@link #scale scale} .
|
1053 |
* <li>The new {@link #adjustedExtent adjustedExtent} .
|
1054 |
* <li>The new {@link #trans trans} .
|
1055 |
* <li>The new real world coordinates equivalent to 1 pixel (
|
1056 |
* {@link #dist1pixel dist1pixel}) .
|
1057 |
* <li>The new real world coordinates equivalent to 3 pixels (
|
1058 |
* {@link #dist3pixel dist3pixel}) .
|
1059 |
* </ul>
|
1060 |
* </p>
|
1061 |
*
|
1062 |
* @see #getAffineTransform()
|
1063 |
* @see #setAffineTransform(AffineTransform)
|
1064 |
* @see #refreshExtent()
|
1065 |
* @see #setEnvelope(Envelope)
|
1066 |
* @see #setImageSize(Dimension)
|
1067 |
* @see #setPreviousExtent()
|
1068 |
* @see #createFromXML(XMLEntity)
|
1069 |
* @see AffineTransform
|
1070 |
*/
|
1071 |
private void calculateAffineTransform() { |
1072 |
if ((imageSize == null) || (extent == null) || (imageSize.width <= 0) |
1073 |
|| (imageSize.height <= 0)) {
|
1074 |
return;
|
1075 |
} |
1076 |
|
1077 |
AffineTransform escalado = new AffineTransform(); |
1078 |
AffineTransform translacion = new AffineTransform(); |
1079 |
|
1080 |
double escalaX;
|
1081 |
double escalaY;
|
1082 |
|
1083 |
escalaX = imageSize.width / extent.getWidth(); |
1084 |
escalaY = imageSize.height / extent.getHeight(); |
1085 |
|
1086 |
double xCenter = extent.getCenterX();
|
1087 |
double yCenter = extent.getCenterY();
|
1088 |
double newHeight;
|
1089 |
double newWidth;
|
1090 |
|
1091 |
adjustedExtent = new Rectangle2D.Double(); |
1092 |
|
1093 |
if (adjustableExtent) {
|
1094 |
if (escalaX < escalaY) {
|
1095 |
scale = escalaX; |
1096 |
newHeight = imageSize.height / scale; |
1097 |
adjustedExtent.setRect(xCenter - (extent.getWidth() / 2.0),
|
1098 |
yCenter - (newHeight / 2.0),
|
1099 |
extent.getWidth(), |
1100 |
newHeight); |
1101 |
} else {
|
1102 |
scale = escalaY; |
1103 |
newWidth = imageSize.width / scale; |
1104 |
adjustedExtent.setRect(xCenter - (newWidth / 2.0), yCenter
|
1105 |
- (extent.getHeight() / 2.0), newWidth, extent.getHeight());
|
1106 |
} |
1107 |
escalado.setToScale(scale, -scale); |
1108 |
} else { // adjusted is same as extent |
1109 |
scale = escalaX; |
1110 |
adjustedExtent.setFrame(extent); |
1111 |
escalado.setToScale(escalaX, -escalaY); |
1112 |
} |
1113 |
Envelope env = getAdjustedExtent(); |
1114 |
if (env == null) { |
1115 |
return;
|
1116 |
} |
1117 |
translacion.setToTranslation(-env.getMinimum(0), -env.getMinimum(1) |
1118 |
- getAdjustedExtent().getLength(1));
|
1119 |
|
1120 |
AffineTransform offsetTrans = new AffineTransform(); |
1121 |
offsetTrans.setToTranslation(offset.getX(), offset.getY()); |
1122 |
|
1123 |
trans.setToIdentity(); |
1124 |
trans.concatenate(offsetTrans); |
1125 |
trans.concatenate(escalado); |
1126 |
|
1127 |
trans.concatenate(translacion); |
1128 |
|
1129 |
// Calculamos las distancias de 1 pixel y 3 pixel con esa
|
1130 |
// transformaci?n
|
1131 |
// de coordenadas, de forma que est?n precalculadas para cuando las
|
1132 |
// necesitemos
|
1133 |
AffineTransform at;
|
1134 |
|
1135 |
try {
|
1136 |
at = trans.createInverse(); |
1137 |
|
1138 |
Point2D pPixel = new Point2D.Float(1, 1); |
1139 |
|
1140 |
Point2D.Float pProv = new Point2D.Float(); |
1141 |
at.deltaTransform(pPixel, pProv); |
1142 |
|
1143 |
dist1pixel = pProv.x; |
1144 |
dist3pixel = 3 * pProv.x;
|
1145 |
} catch (NoninvertibleTransformException e) { |
1146 |
System.err.println("transformada afin = " + trans.toString()); |
1147 |
System.err.println("extent = " + extent.toString() + " imageSize= " |
1148 |
+ imageSize.toString()); |
1149 |
throw new RuntimeException("Non invertible transform Exception", e); |
1150 |
} |
1151 |
} |
1152 |
|
1153 |
/**
|
1154 |
* <p>
|
1155 |
* Sets the offset.
|
1156 |
* </p>
|
1157 |
* <p>
|
1158 |
* The offset is the position where start drawing the map.
|
1159 |
* </p>
|
1160 |
*
|
1161 |
* @param p
|
1162 |
* 2D point that represents the offset in pixels
|
1163 |
*
|
1164 |
* @see #getOffset()
|
1165 |
*/
|
1166 |
public void setOffset(Point2D p) { |
1167 |
if (!offset.equals(p)) {
|
1168 |
this.updateDrawVersion();
|
1169 |
offset = p; |
1170 |
} |
1171 |
} |
1172 |
|
1173 |
/**
|
1174 |
* <p>
|
1175 |
* Gets the offset.
|
1176 |
* </p>
|
1177 |
* <p>
|
1178 |
* The offset is the position where start drawing the map.
|
1179 |
* </p>
|
1180 |
*
|
1181 |
* @return 2D point that represents the offset in pixels
|
1182 |
*
|
1183 |
* @see #setOffset(Point2D)
|
1184 |
*/
|
1185 |
public Point2D getOffset() { |
1186 |
return offset;
|
1187 |
} |
1188 |
|
1189 |
/**
|
1190 |
* <p>
|
1191 |
* Sets the background color.
|
1192 |
* </p>
|
1193 |
*
|
1194 |
* @param c
|
1195 |
* the new background color
|
1196 |
*
|
1197 |
* @see #getBackColor()
|
1198 |
*/
|
1199 |
public void setBackColor(Color c) { |
1200 |
if (!c.equals(this.backColor)) { |
1201 |
this.updateDrawVersion();
|
1202 |
backColor = c; |
1203 |
callColorChanged(backColor); |
1204 |
} |
1205 |
} |
1206 |
|
1207 |
/**
|
1208 |
* <p>
|
1209 |
* Gets the background color.
|
1210 |
* </p>
|
1211 |
*
|
1212 |
* @return the background color of the view
|
1213 |
*
|
1214 |
* @see #setBackColor(Color)
|
1215 |
*/
|
1216 |
public Color getBackColor() { |
1217 |
return backColor;
|
1218 |
} |
1219 |
|
1220 |
/**
|
1221 |
* <p>
|
1222 |
* Returns the extent currently covered by the view adjusted (scaled) to the
|
1223 |
* image size aspect.
|
1224 |
* </p>
|
1225 |
*
|
1226 |
* @return extent of the view adjusted to the image size aspect
|
1227 |
*
|
1228 |
* @see #setAdjustable(boolean)
|
1229 |
* @deprecated use {@link ViewPort#getAdjustedEnvelope()} instead
|
1230 |
*/
|
1231 |
public Envelope getAdjustedExtent() {
|
1232 |
return getAdjustedEnvelope();
|
1233 |
} |
1234 |
|
1235 |
/**
|
1236 |
* <p>
|
1237 |
* Returns the envelope currently covered by the view adjusted (scaled) to
|
1238 |
* the image size aspect.
|
1239 |
* </p>
|
1240 |
*
|
1241 |
* @return envelope of the view adjusted to the image size aspect
|
1242 |
*
|
1243 |
* @see #setAdjustable(boolean)
|
1244 |
*/
|
1245 |
public Envelope getAdjustedEnvelope() {
|
1246 |
if (cliprect != null) { |
1247 |
Rectangle2D r = adjustedExtent.createIntersection(cliprect);
|
1248 |
try {
|
1249 |
return geomManager.createEnvelope(r.getX(),
|
1250 |
r.getY(), |
1251 |
r.getMaxX(), |
1252 |
r.getMaxY(), |
1253 |
SUBTYPES.GEOM2D); |
1254 |
} catch (CreateEnvelopeException e) {
|
1255 |
e.printStackTrace(); |
1256 |
logger.error("Error adjusting the extent", e);
|
1257 |
} |
1258 |
} |
1259 |
if (adjustedExtent != null) { |
1260 |
try {
|
1261 |
return geomManager.createEnvelope(adjustedExtent.getX(),
|
1262 |
adjustedExtent.getY(), |
1263 |
adjustedExtent.getMaxX(), |
1264 |
adjustedExtent.getMaxY(), |
1265 |
SUBTYPES.GEOM2D); |
1266 |
} catch (CreateEnvelopeException e) {
|
1267 |
e.printStackTrace(); |
1268 |
logger.error("Error adjusting the extent", e);
|
1269 |
} |
1270 |
} |
1271 |
return null; |
1272 |
} |
1273 |
|
1274 |
/**
|
1275 |
* <p>
|
1276 |
* Returns the measurement unit of this view port used for measuring
|
1277 |
* distances and displaying information.
|
1278 |
* </p>
|
1279 |
*
|
1280 |
* @return the measurement unit of this view used for measuring distances
|
1281 |
* and displaying information
|
1282 |
*
|
1283 |
* @see #setDistanceUnits(int)
|
1284 |
*/
|
1285 |
public int getDistanceUnits() { |
1286 |
return distanceUnits;
|
1287 |
} |
1288 |
|
1289 |
/**
|
1290 |
* <p>
|
1291 |
* Returns the measurement unit of this view port used for measuring areas
|
1292 |
* and displaying information.
|
1293 |
* </p>
|
1294 |
*
|
1295 |
* @return the measurement unit of this view used for measuring areas and
|
1296 |
* displaying information
|
1297 |
*
|
1298 |
* @see #setDistanceUnits(int)
|
1299 |
*/
|
1300 |
public int getDistanceArea() { |
1301 |
return distanceArea;
|
1302 |
} |
1303 |
|
1304 |
/**
|
1305 |
* <p>
|
1306 |
* Sets the measurement unit of this view port used for measuring distances
|
1307 |
* and displaying information.
|
1308 |
* </p>
|
1309 |
*
|
1310 |
* @param distanceUnits
|
1311 |
* the measurement unit of this view used for measuring distances
|
1312 |
* and displaying information
|
1313 |
*
|
1314 |
* @see #getDistanceUnits()
|
1315 |
*/
|
1316 |
public void setDistanceUnits(int distanceUnits) { |
1317 |
this.distanceUnits = distanceUnits;
|
1318 |
} |
1319 |
|
1320 |
/**
|
1321 |
* <p>
|
1322 |
* Sets the measurement unit of this view port used for measuring areas and
|
1323 |
* displaying information.
|
1324 |
* </p>
|
1325 |
*
|
1326 |
* @param distanceUnits
|
1327 |
* the measurement unit of this view used for measuring areas and
|
1328 |
* displaying information
|
1329 |
*
|
1330 |
* @see #getDistanceUnits()
|
1331 |
*/
|
1332 |
public void setDistanceArea(int distanceArea) { |
1333 |
this.distanceArea = distanceArea;
|
1334 |
} |
1335 |
|
1336 |
/**
|
1337 |
* <p>
|
1338 |
* Gets the measurement unit used by this view port for the map.
|
1339 |
* </p>
|
1340 |
*
|
1341 |
* @return Returns the current map measure unit
|
1342 |
*
|
1343 |
* @see #setMapUnits(int)
|
1344 |
*/
|
1345 |
public int getMapUnits() { |
1346 |
return mapUnits;
|
1347 |
} |
1348 |
|
1349 |
/**
|
1350 |
* <p>
|
1351 |
* Sets the measurement unit used by this view port for the map.
|
1352 |
* </p>
|
1353 |
*
|
1354 |
* @param mapUnits
|
1355 |
* the new map measure unit
|
1356 |
*
|
1357 |
* @see #getMapUnits()
|
1358 |
*/
|
1359 |
public void setMapUnits(int mapUnits) { |
1360 |
this.mapUnits = mapUnits;
|
1361 |
} |
1362 |
|
1363 |
/**
|
1364 |
* <p>
|
1365 |
* Gets the width in <i>screen coordinates</i> of the rectangle where the
|
1366 |
* image is displayed.
|
1367 |
* </p>
|
1368 |
* <p>
|
1369 |
* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
1370 |
*
|
1371 |
* <ul>
|
1372 |
* <li>The new {@link #scale scale} .
|
1373 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
1374 |
* <li>The new {@link #trans trans} .
|
1375 |
* <li>The new real world coordinates equivalent to 1 pixel (
|
1376 |
* {@link #dist1pixel dist1pixel}) .
|
1377 |
* <li>The new real world coordinates equivalent to 3 pixels (
|
1378 |
* {@link #dist3pixel dist3pixel}) .
|
1379 |
* </ul>
|
1380 |
* </p>
|
1381 |
*
|
1382 |
* @see #getImageHeight()
|
1383 |
* @see #getImageSize()
|
1384 |
* @see #setImageSize(Dimension)
|
1385 |
*/
|
1386 |
public int getImageWidth() { |
1387 |
return imageSize.width;
|
1388 |
} |
1389 |
|
1390 |
/**
|
1391 |
* <p>
|
1392 |
* Gets the height in <i>screen coordinates</i> of the rectangle where the
|
1393 |
* image is displayed.
|
1394 |
* </p>
|
1395 |
* <p>
|
1396 |
* Used by {@linkplain #calculateAffineTransform()} to calculate:<br>
|
1397 |
*
|
1398 |
* <ul>
|
1399 |
* <li>The new {@link #scale scale} .
|
1400 |
* <li>The new {@link #adjustedExtent adjustableExtent} .
|
1401 |
* <li>The new {@link #trans trans} .
|
1402 |
* <li>The new real world coordinates equivalent to 1 pixel (
|
1403 |
* {@link #dist1pixel dist1pixel}) .
|
1404 |
* <li>The new real world coordinates equivalent to 3 pixels (
|
1405 |
* {@link #dist3pixel dist3pixel}) .
|
1406 |
* </ul>
|
1407 |
* </p>
|
1408 |
*
|
1409 |
* @see #getImageWidth()
|
1410 |
* @see #getImageSize()
|
1411 |
* @see #setImageSize(Dimension)
|
1412 |
*/
|
1413 |
public int getImageHeight() { |
1414 |
return imageSize.height;
|
1415 |
} |
1416 |
|
1417 |
/**
|
1418 |
* <p>
|
1419 |
* Gets the distance in <i>world coordinates</i> equivalent to 1 pixel in
|
1420 |
* the view with the current extent.
|
1421 |
* </p>
|
1422 |
*
|
1423 |
* @return the distance
|
1424 |
*
|
1425 |
* @see #setDist1pixel(double)
|
1426 |
*/
|
1427 |
public double getDist1pixel() { |
1428 |
return dist1pixel;
|
1429 |
} |
1430 |
|
1431 |
/**
|
1432 |
* <p>
|
1433 |
* Sets the distance in <i>world coordinates</i> equivalent to 1 pixel in
|
1434 |
* the view with the current extent.
|
1435 |
* </p>
|
1436 |
*
|
1437 |
* @param dist1pixel
|
1438 |
* the distance
|
1439 |
*
|
1440 |
* @see #getDist1pixel()
|
1441 |
*/
|
1442 |
public void setDist1pixel(double dist1pixel) { |
1443 |
if (dist1pixel == this.dist1pixel) { |
1444 |
return;
|
1445 |
} |
1446 |
this.updateDrawVersion();
|
1447 |
this.dist1pixel = dist1pixel;
|
1448 |
} |
1449 |
|
1450 |
/**
|
1451 |
* <p>
|
1452 |
* Gets the distance in <i>world coordinates</i> equivalent to 3 pixels in
|
1453 |
* the view with the current extent.
|
1454 |
* </p>
|
1455 |
*
|
1456 |
* @return the distance
|
1457 |
*
|
1458 |
* @see #setDist3pixel(double)
|
1459 |
*/
|
1460 |
public double getDist3pixel() { |
1461 |
return dist3pixel;
|
1462 |
} |
1463 |
|
1464 |
/**
|
1465 |
* <p>
|
1466 |
* Sets the distance in <i>world coordinates</i> equivalent to 3 pixels in
|
1467 |
* the view with the current extent.
|
1468 |
* </p>
|
1469 |
*
|
1470 |
* @param dist3pixel
|
1471 |
* the distance
|
1472 |
*
|
1473 |
* @see #getDist3pixel()
|
1474 |
*/
|
1475 |
public void setDist3pixel(double dist3pixel) { |
1476 |
if (this.dist3pixel == dist3pixel) { |
1477 |
return;
|
1478 |
} |
1479 |
this.updateDrawVersion();
|
1480 |
this.dist3pixel = dist3pixel;
|
1481 |
} |
1482 |
|
1483 |
/**
|
1484 |
* <p>
|
1485 |
* Returns the last previous extents of this view port.
|
1486 |
* </p>
|
1487 |
*
|
1488 |
* @return the last previous extents of this view port
|
1489 |
*
|
1490 |
* @see #setPreviousExtent()
|
1491 |
* @deprecated use {@link ViewPort#getEnvelopes()}
|
1492 |
*/
|
1493 |
public ExtentHistory getExtents() {
|
1494 |
return getEnvelopes();
|
1495 |
} |
1496 |
|
1497 |
/**
|
1498 |
* <p>
|
1499 |
* Returns the last previous extents of this view port.
|
1500 |
* </p>
|
1501 |
*
|
1502 |
* @return the last previous extents of this view port
|
1503 |
*
|
1504 |
* @see #setPreviousExtent()
|
1505 |
*/
|
1506 |
public ExtentHistory getEnvelopes() {
|
1507 |
return extents;
|
1508 |
} |
1509 |
|
1510 |
/**
|
1511 |
* <p>
|
1512 |
* Gets the projection used in this view port.
|
1513 |
* </p>
|
1514 |
*
|
1515 |
* @return projection used in this view port
|
1516 |
*
|
1517 |
* @see #setProjection(IProjection)
|
1518 |
*/
|
1519 |
public IProjection getProjection() {
|
1520 |
return proj;
|
1521 |
} |
1522 |
|
1523 |
/**
|
1524 |
* <p>
|
1525 |
* Sets the projection to this view port.
|
1526 |
* </p>
|
1527 |
*
|
1528 |
* @param proj
|
1529 |
* the new projection
|
1530 |
*
|
1531 |
* @see #getProjection()
|
1532 |
*/
|
1533 |
public void setProjection(IProjection proj) { |
1534 |
if (this.proj == null || !this.proj.getAbrev().equals(proj.getAbrev())) { |
1535 |
this.updateDrawVersion();
|
1536 |
this.proj = proj;
|
1537 |
callProjectionChanged(proj); |
1538 |
} |
1539 |
} |
1540 |
|
1541 |
// -----------------------------------------------------------------------------------------------------------
|
1542 |
// NOTA PARA DESARROLLADORES SOBRE EL M?TODO
|
1543 |
// "public void setAffineTransform(AffineTransform at)"
|
1544 |
// ==============================================================================================
|
1545 |
// Only used for print, should be removed, redefining the {@link
|
1546 |
// RasterAdapter RasterAdapter} interface,
|
1547 |
// allowing it to receive a {@link ViewPortData ViewPortData} .
|
1548 |
// -----------------------------------------------------------------------------------------------------------
|
1549 |
|
1550 |
/**
|
1551 |
* <p>
|
1552 |
* Sets only the affine transform to this view port, without updating
|
1553 |
* dependent attributes.
|
1554 |
* </p>
|
1555 |
* <p>
|
1556 |
* <b><i>This method could be problematic!</i></b>
|
1557 |
* </p>
|
1558 |
*
|
1559 |
* @param at
|
1560 |
* the affine transform to set
|
1561 |
*
|
1562 |
* @see #getAffineTransform()
|
1563 |
* @see #calculateAffineTransform()
|
1564 |
*/
|
1565 |
public void setAffineTransform(AffineTransform at) { |
1566 |
this.trans = at;
|
1567 |
} |
1568 |
|
1569 |
/**
|
1570 |
* <p>
|
1571 |
* Returns an XML entity that represents this view port instance:<br>
|
1572 |
* <ul>
|
1573 |
* <li>Properties:
|
1574 |
* <ul>
|
1575 |
* <li><i>className</i>: name of this class.
|
1576 |
* <li>If defined, the adjusted extent:
|
1577 |
* <ul>
|
1578 |
* <li><i>adjustedExtentX</i>: X coordinate of the adjusted extent.
|
1579 |
* <li><i>adjustedExtentY</i>: Y coordinate of the adjusted extent.
|
1580 |
* <li><i>adjustedExtentW</i>: width of the adjusted extent.
|
1581 |
* <li><i>adjustedExtentH</i>: height of the adjusted extent.
|
1582 |
* </ul>
|
1583 |
* <li>If defined, the background color:
|
1584 |
* <ul>
|
1585 |
* <li><i>backColor</i>: background color.
|
1586 |
* </ul>
|
1587 |
* <li>If defined, the clip:
|
1588 |
* <ul>
|
1589 |
* <li><i>clipX</i>: X coordinate of the clip.
|
1590 |
* <li><i>clipY</i>: Y coordinate of clip.
|
1591 |
* <li><i>clipW</i>: width of the clip.
|
1592 |
* <li><i>clipH</i>: height of the clip.
|
1593 |
* </ul>
|
1594 |
* <li><i>dist1pixel</i>: the distance in world coordinates equivalent to 1
|
1595 |
* pixel in the view.
|
1596 |
* <li><i>dist3pixel</i>: the distance in world coordinates equivalent to 3
|
1597 |
* pixels in the view.
|
1598 |
* <li><i>distanceUnits</i>: the distance measurement unit.
|
1599 |
* <li>If defined, the extent:
|
1600 |
* <ul>
|
1601 |
* <li><i>extentX</i>: X coordinate of the extent.
|
1602 |
* <li><i>extentY</i>: Y coordinate of the extent.
|
1603 |
* <li><i>extentW</i>: width of the extent.
|
1604 |
* <li><i>extentH</i>: height of the extent.
|
1605 |
* </ul>
|
1606 |
* <li><i>mapUnits</i>: the map measurement unit.
|
1607 |
* <li><i>offsetX</i>: X coordinate of the offset.
|
1608 |
* <li><i>offsetY</i>: Y coordinate of the offset.
|
1609 |
* <li>If defined, the projection:
|
1610 |
* <ul>
|
1611 |
* <li>If its defined, the projection:
|
1612 |
* <ul>
|
1613 |
* <li><i>proj</i>: the projection.</li>
|
1614 |
* </ul>
|
1615 |
* </ul>
|
1616 |
* <li><i>scale</i>: ratio between the size of <code>imageSize</code> and
|
1617 |
* <code>extent</code>.
|
1618 |
* </ul>
|
1619 |
* <li>Child branches:
|
1620 |
* <ul>
|
1621 |
* <li>XML entity of the internal {@link ExtentHistory ExtentHistory} .
|
1622 |
* </ul>
|
1623 |
* </ul>
|
1624 |
*
|
1625 |
* @return the XML entity
|
1626 |
*
|
1627 |
* @see #createFromXML(XMLEntity)
|
1628 |
*/
|
1629 |
public void saveToState(PersistentState state) throws PersistenceException { |
1630 |
|
1631 |
state.set(FIELD_ADJUSTED_EXTENT, adjustedExtent); |
1632 |
state.set(FIELD_BACK_COLOR, backColor); |
1633 |
state.set(FIELD_CLIP, cliprect); |
1634 |
state.set(FIELD_DIST1PIXEL, dist1pixel); |
1635 |
state.set(FIELD_DIST3PIXEL, dist3pixel); |
1636 |
state.set(FIELD_DISTANCE_UNITS, distanceUnits); |
1637 |
state.set(FIELD_DISTANCE_AREA, distanceArea); |
1638 |
|
1639 |
state.set(FIELD_EXTENT, extent); |
1640 |
state.set(FIELD_EXTENTS, extents); |
1641 |
|
1642 |
state.set(FIELD_MAP_UNITS, mapUnits); |
1643 |
state.set(FIELD_OFFSET, offset); |
1644 |
|
1645 |
state.set(FIELD_PROJ, proj); |
1646 |
|
1647 |
state.set(FIELD_IMAGE_SIZE, imageSize); |
1648 |
} |
1649 |
|
1650 |
public static void registerPersistent() { |
1651 |
PersistenceManager manager = ToolsLocator.getPersistenceManager(); |
1652 |
DynStruct definition = |
1653 |
manager.addDefinition(ViewPort.class, |
1654 |
"ViewPort",
|
1655 |
"ViewPort Persistence definition",
|
1656 |
null,
|
1657 |
null);
|
1658 |
|
1659 |
definition.addDynFieldObject(FIELD_ADJUSTED_EXTENT) |
1660 |
.setClassOfValue(Rectangle2D.class)
|
1661 |
.setMandatory(false);
|
1662 |
|
1663 |
definition.addDynFieldObject(FIELD_BACK_COLOR) |
1664 |
.setClassOfValue(Color.class)
|
1665 |
.setMandatory(false);
|
1666 |
|
1667 |
definition.addDynFieldObject(FIELD_CLIP) |
1668 |
.setClassOfValue(Rectangle2D.class)
|
1669 |
.setMandatory(false);
|
1670 |
|
1671 |
definition.addDynFieldDouble(FIELD_DIST1PIXEL).setMandatory(true);
|
1672 |
|
1673 |
definition.addDynFieldDouble(FIELD_DIST3PIXEL).setMandatory(true);
|
1674 |
|
1675 |
definition.addDynFieldInt(FIELD_DISTANCE_UNITS).setMandatory(true);
|
1676 |
|
1677 |
definition.addDynFieldInt(FIELD_DISTANCE_AREA).setMandatory(false);
|
1678 |
|
1679 |
definition.addDynFieldObject(FIELD_EXTENT) |
1680 |
.setClassOfValue(Rectangle2D.class)
|
1681 |
.setMandatory(false);
|
1682 |
|
1683 |
definition.addDynFieldObject(FIELD_EXTENTS) |
1684 |
.setClassOfValue(ExtentHistory.class) |
1685 |
.setMandatory(true);
|
1686 |
|
1687 |
definition.addDynFieldInt(FIELD_MAP_UNITS).setMandatory(true);
|
1688 |
|
1689 |
definition.addDynFieldDouble(FIELD_OFFSET) |
1690 |
.setClassOfValue(Point2D.class)
|
1691 |
.setMandatory(false);
|
1692 |
|
1693 |
definition.addDynFieldObject(FIELD_PROJ) |
1694 |
.setClassOfValue(IProjection.class) |
1695 |
.setMandatory(true);
|
1696 |
|
1697 |
definition.addDynFieldInt(FIELD_IMAGE_SIZE) |
1698 |
.setClassOfValue(Dimension.class)
|
1699 |
.setMandatory(false);
|
1700 |
} |
1701 |
|
1702 |
public void loadFromState(PersistentState state) throws PersistenceException { |
1703 |
|
1704 |
adjustedExtent = (Rectangle2D) state.get(FIELD_ADJUSTED_EXTENT);
|
1705 |
backColor = (Color) state.get(FIELD_BACK_COLOR);
|
1706 |
cliprect = (Rectangle2D) state.get(FIELD_CLIP);
|
1707 |
dist1pixel = state.getDouble(FIELD_DIST1PIXEL); |
1708 |
dist3pixel = state.getDouble(FIELD_DIST3PIXEL); |
1709 |
distanceUnits = state.getInt(FIELD_DISTANCE_UNITS); |
1710 |
extents = (ExtentHistory) state.get(FIELD_EXTENTS); |
1711 |
extent = (Rectangle2D) state.get(FIELD_EXTENT);
|
1712 |
mapUnits = state.getInt(FIELD_MAP_UNITS); |
1713 |
offset = (Point2D) state.get(FIELD_OFFSET);
|
1714 |
proj = (IProjection) state.get(FIELD_PROJ); |
1715 |
imageSize = (Dimension) state.get(FIELD_IMAGE_SIZE);
|
1716 |
distanceArea = state.getInt(FIELD_DISTANCE_AREA); |
1717 |
|
1718 |
refreshExtent(); |
1719 |
} |
1720 |
|
1721 |
/**
|
1722 |
* Clone the view port without clone the listeners nor the extent history.
|
1723 |
*
|
1724 |
* @return the cloned view port
|
1725 |
*/
|
1726 |
public Object clone() throws CloneNotSupportedException { |
1727 |
|
1728 |
ViewPort clonedViewPort = (ViewPort) super.clone();
|
1729 |
clonedViewPort.listeners = new ArrayList(); |
1730 |
clonedViewPort.extents = new ExtentHistory();
|
1731 |
|
1732 |
if (this.adjustedExtent!=null){ |
1733 |
clonedViewPort.adjustedExtent = |
1734 |
(Rectangle2D) this.adjustedExtent.clone(); |
1735 |
} |
1736 |
|
1737 |
if (this.cliprect!=null){ |
1738 |
clonedViewPort.cliprect = (Rectangle2D) this.cliprect.clone(); |
1739 |
} |
1740 |
|
1741 |
if (this.extent!=null) { |
1742 |
clonedViewPort.extent = (Rectangle2D) this.extent.clone(); |
1743 |
} |
1744 |
if (this.imageSize!=null){ |
1745 |
clonedViewPort.imageSize = (Dimension) this.imageSize.clone(); |
1746 |
} |
1747 |
|
1748 |
if (this.offset!=null){ |
1749 |
clonedViewPort.offset = (Point2D) this.offset.clone(); |
1750 |
} |
1751 |
if (proj!=null){ |
1752 |
clonedViewPort.proj = (IProjection) this.proj.clone();
|
1753 |
} |
1754 |
|
1755 |
clonedViewPort.trans = (AffineTransform) this.trans.clone(); |
1756 |
|
1757 |
return clonedViewPort;
|
1758 |
} |
1759 |
|
1760 |
/**
|
1761 |
* <p>
|
1762 |
* Returns a <code>String</code> representation of the main values of this
|
1763 |
* view port: <code>{@linkplain #extent}</code>,
|
1764 |
* <code>{@linkplain #adjustedExtent}</code>,
|
1765 |
* <code>{@linkplain #imageSize}</code>, <code>{@linkplain #scale}</code>,
|
1766 |
* and <code>{@linkplain #trans}</code>.
|
1767 |
* </p>
|
1768 |
*
|
1769 |
* @return a <code>string</code> representation of the main values of this
|
1770 |
* view port
|
1771 |
*/
|
1772 |
public String toString() { |
1773 |
|
1774 |
String str;
|
1775 |
str = |
1776 |
"Datos del viewPort:\nExtent=" + extent + "\nadjustedExtent=" |
1777 |
+ adjustedExtent + "\nimageSize=" + imageSize + "\nescale=" |
1778 |
+ scale + "\ntrans=" + trans;
|
1779 |
|
1780 |
return str;
|
1781 |
} |
1782 |
|
1783 |
/**
|
1784 |
* <p>
|
1785 |
* Sets the position and size of the clipping rectangle.
|
1786 |
* </p>
|
1787 |
*
|
1788 |
* @param rectView
|
1789 |
* the clipping rectangle to set
|
1790 |
*/
|
1791 |
public void setClipRect(Rectangle2D rectView) { |
1792 |
this.updateDrawVersion();
|
1793 |
cliprect = rectView; |
1794 |
} |
1795 |
|
1796 |
/**
|
1797 |
* <p>
|
1798 |
* Converts and returns the {@link Rectangle2D Rectangle2D}, that is in
|
1799 |
* <i>map coordinates</i> to <i>screen coordinates</i> (pixels) using an
|
1800 |
* <i>inverse transform</i> with the transformation affine information in
|
1801 |
* the {@link #trans #trans} attribute.
|
1802 |
* </p>
|
1803 |
*
|
1804 |
* @param r
|
1805 |
* the 2D rectangle in <i>map coordinates</i>
|
1806 |
* @return 2D rectangle equivalent in <i>screen coordinates</i> (pixels)
|
1807 |
*
|
1808 |
* @see #toMapRectangle(Rectangle2D)
|
1809 |
* @see #fromMapDistance(double)
|
1810 |
* @see #fromMapPoint(Point2D)
|
1811 |
*/
|
1812 |
public Rectangle2D fromMapRectangle(Rectangle2D r) { |
1813 |
Rectangle2D rect = new Rectangle2D.Double(); |
1814 |
Point2D p1 = fromMapPoint((int) r.getX(), (int) r.getY()); |
1815 |
Point2D p2 = fromMapPoint((int) r.getMaxX(), (int) r.getMaxY()); |
1816 |
rect.setFrameFromDiagonal(p1, p2); |
1817 |
return rect;
|
1818 |
} |
1819 |
|
1820 |
/**
|
1821 |
* <p>
|
1822 |
* Recalculates the current <code>{@linkplain #extent}</code> using an
|
1823 |
* scale. It's necessary execute {@linkplain #refreshExtent()} after.
|
1824 |
* </p>
|
1825 |
*
|
1826 |
* @param s
|
1827 |
* the scale to set
|
1828 |
*
|
1829 |
* @deprecated since 07/09/07, use
|
1830 |
* {@linkplain MapContext#setScaleView(long)}
|
1831 |
*/
|
1832 |
public void setScale(long s) { |
1833 |
double x = extent.getX();
|
1834 |
double y = extent.getY();
|
1835 |
double escalaX = imageSize.width / extent.getWidth();
|
1836 |
// double w = imageSize.width / s;
|
1837 |
// double h = imageSize.height / s;
|
1838 |
double difw = escalaX / s;
|
1839 |
|
1840 |
double x1 = (-x * difw) - x + extent.getWidth() / 2; |
1841 |
double y1 = (-y * difw) - y + extent.getHeight() / 2; |
1842 |
double w1 = extent.getWidth() * difw;
|
1843 |
double h1 = extent.getHeight() * difw;
|
1844 |
extent.setRect(-x1, -y1, w1, h1); |
1845 |
} |
1846 |
|
1847 |
public long getDrawVersion() { |
1848 |
return this.drawVersion; |
1849 |
} |
1850 |
|
1851 |
protected void updateDrawVersion() { |
1852 |
this.drawVersion++;
|
1853 |
} |
1854 |
|
1855 |
/**
|
1856 |
* Obtiene la representaci?n de un color como String
|
1857 |
*
|
1858 |
* @param c
|
1859 |
* Color
|
1860 |
*
|
1861 |
* @return String
|
1862 |
*/
|
1863 |
public static String color2String(Color c) { |
1864 |
if (c == null) |
1865 |
return null; |
1866 |
return c.getRed() + "," + c.getGreen() + "," + c.getBlue() + "," |
1867 |
+ c.getAlpha(); |
1868 |
} |
1869 |
|
1870 |
/**
|
1871 |
* Obtiene el color de un string generado con color2String
|
1872 |
*
|
1873 |
* @param stringColor
|
1874 |
* string
|
1875 |
*
|
1876 |
* @return Color
|
1877 |
*/
|
1878 |
public static Color string2Color(String stringColor) { |
1879 |
if (stringColor == null || stringColor.equals("null")) |
1880 |
return null; |
1881 |
String[] ints = new String[4]; |
1882 |
|
1883 |
ints = CompatLocator.getStringUtils().split(stringColor, ",");
|
1884 |
|
1885 |
int[] ret = new int[4]; |
1886 |
|
1887 |
for (int i = 0; i < ret.length; i++) { |
1888 |
ret[i] = new Integer(ints[i]).intValue(); |
1889 |
} |
1890 |
|
1891 |
return new Color(ret[0], ret[1], ret[2], ret[3]); |
1892 |
|
1893 |
/*
|
1894 |
* long color = new Long(stringColor).longValue();
|
1895 |
* long alpha = color / 16777216;
|
1896 |
* color = color % 16777216;
|
1897 |
*
|
1898 |
* long red = color / 65536;
|
1899 |
* color = color % 65536;
|
1900 |
* long green = color / 256;
|
1901 |
* color = color % 256;
|
1902 |
* long blue = color;
|
1903 |
* return new Color(red, green, blue, alpha);
|
1904 |
*/
|
1905 |
} |
1906 |
|
1907 |
} |