svn-gvsig-desktop / trunk / extSymbology / src / org / gvsig / symbology / fmap / labeling / placements / PolygonPlacementOnCentroid.java @ 18755
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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) 2005 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.symbology.fmap.labeling.placements; |
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import java.util.ArrayList; |
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import com.iver.cit.gvsig.fmap.core.FPoint2D; |
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import com.iver.cit.gvsig.fmap.core.FShape; |
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import com.iver.cit.gvsig.fmap.core.v02.FConverter; |
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import com.iver.cit.gvsig.fmap.rendering.styling.labeling.IPlacementConstraints; |
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import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelClass; |
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import com.iver.cit.gvsig.fmap.rendering.styling.labeling.LabelLocationMetrics; |
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import com.iver.utiles.swing.threads.Cancellable; |
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import com.vividsolutions.jts.geom.Geometry; |
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import com.vividsolutions.jts.geom.Point; |
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public class PolygonPlacementOnCentroid extends MarkerCenteredAtPoint implements ILabelPlacement { |
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public ArrayList<LabelLocationMetrics> guess(LabelClass lc, FShape shp, |
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IPlacementConstraints placementConstraints, |
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double cartographicSymbolSize, Cancellable cancel) {
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if (cancel.isCanceled()) return CannotPlaceLabel.NO_PLACES; |
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Geometry geo = FConverter.java2d_to_jts(shp); |
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if (geo == null) { |
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return CannotPlaceLabel.NO_PLACES;
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} |
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Point pJTS = geo.getCentroid();
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return super.guess(lc, new FPoint2D(pJTS.getX(), pJTS.getY()), placementConstraints, cartographicSymbolSize, cancel); |
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} |
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public boolean isSuitableFor(IPlacementConstraints placementConstraints, |
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int shapeType) {
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if (shapeType == FShape.POLYGON) {
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return placementConstraints.isHorizontal();
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} |
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return false; |
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} |
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} |