svn-gvsig-desktop / branches / v10 / applications / appgvSIG / src / com / iver / cit / gvsig / project / documents / view / toolListeners / AreaListener.java @ 20100
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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.project.documents.view.toolListeners; |
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import java.awt.geom.Point2D; |
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import java.text.NumberFormat; |
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import com.iver.andami.PluginServices; |
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import com.iver.andami.ui.mdiFrame.MainFrame; |
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import com.iver.cit.gvsig.fmap.MapContext; |
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import com.iver.cit.gvsig.fmap.MapControl; |
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import com.iver.cit.gvsig.fmap.ViewPort; |
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import com.iver.cit.gvsig.fmap.tools.AreaListenerImpl; |
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import com.iver.cit.gvsig.fmap.tools.Events.MeasureEvent; |
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/**
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* <p>Listener for calculating the area of a polygon, defined in the associated {@link MapControl MapControl}
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* object.</p>
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* <p>Moves the extent of the associated {@link MapControl MapControl} object
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* according the movement between the initial and final points of the line determined by the movement
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* dragged with the third button of the mouse.</p>
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*
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* <p>Updates the status bar of the main frame of the application with the current area.</p>
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*
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* @see AreaListenerImpl
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*
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* @author Vicente Caballero Navarro
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*/
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public class AreaListener extends AreaListenerImpl { |
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/**
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* <p>Creates a new listener for calculating the area of a polygon and displaying it at the status bar
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* of the main frame of the application.</p>
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*
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* @param mc the <code>MapControl</code> where is calculated the area
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*/
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public AreaListener(MapControl mc) {
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super(mc);
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} |
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/*
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* (non-Javadoc)
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* @see com.iver.cit.gvsig.fmap.tools.AreaListenerImpl#points(com.iver.cit.gvsig.fmap.tools.Events.MeasureEvent)
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*/
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public void points(MeasureEvent event) { |
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this.event = event;
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double dist = 0; |
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double distAll = 0; |
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ViewPort vp = mapCtrl.getMapContext().getViewPort(); |
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for (int i = 0; i < (event.getXs().length - 1); i++) { |
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dist = 0;
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Point2D p = new Point2D.Double(event.getXs()[i].doubleValue(), event.getYs()[i].doubleValue());//vp.toMapPoint(new Point(event.getXs()[i].intValue(), event.getYs()[i].intValue())); |
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Point2D p2 = new Point2D.Double(event.getXs()[i + 1].doubleValue(), event.getYs()[i + 1].doubleValue());//vp.toMapPoint(new Point(event.getXs()[i + 1].intValue(), event.getYs()[i + 1].intValue())); |
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///dist = vp.toMapDistance((int) p.distance(p2));
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dist = vp.distanceWorld(p,p2); |
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System.out.println("distancia parcial = "+dist); |
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distAll += dist; |
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} |
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// System.out.println("Per?metro = " + distAll + " ?rea = " +
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// (returnArea(vp.toMapPoint(
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// new Point2D.Double(
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// event.getXs()[event.getXs().length - 2].doubleValue(),
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// event.getYs()[event.getYs().length - 2].doubleValue())))));
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NumberFormat nf = NumberFormat.getInstance(); |
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nf.setMaximumFractionDigits(2);
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MainFrame mF = PluginServices.getMainFrame(); |
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if (mF != null) |
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{ |
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int distanceUnits=mapCtrl.getViewPort().getDistanceUnits();
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mF.getStatusBar().setMessage("4",
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"P:" + nf.format(distAll/MapContext.CHANGEM[distanceUnits]) + ""); |
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mF.getStatusBar().setMessage("5",
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///"A:" + nf.format(returnArea(vp.toMapPoint(
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/// new Point2D.Double(
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/// event.getXs()[event.getXs().length - 2].doubleValue(),
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/// event.getYs()[event.getYs().length - 2].doubleValue())))/FMap.CHANGEM[mapCtrl.getViewPort().getDistanceUnits()]) + "");
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"A:" + nf.format(returnArea(
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new Point2D.Double( |
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event.getXs()[event.getXs().length - 2].doubleValue(),
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event.getYs()[event.getYs().length - 2].doubleValue()))/Math.pow(MapContext.CHANGEM[distanceUnits],2)) + ""); |
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} |
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} |
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} |