svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.operation.jts / src / main / java / org / gvsig / fmap / geom / operation / ensureOrientation / EnsureOrientation.java @ 42280
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/**
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* gvSIG. Desktop Geographic Information System.
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*
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* Copyright (C) 2007-2013 gvSIG Association.
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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 3
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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., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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* For any additional information, do not hesitate to contact us
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* at info AT gvsig.com, or visit our website www.gvsig.com.
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*/
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package org.gvsig.fmap.geom.operation.ensureOrientation; |
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import org.gvsig.fmap.geom.Geometry; |
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import org.gvsig.fmap.geom.GeometryLocator; |
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import org.gvsig.fmap.geom.jts.GeometryJTS; |
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import org.gvsig.fmap.geom.operation.GeometryOperation; |
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import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
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import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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/**
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* Use this function class to ensure you get real polygons or holes
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* En JTS, con bCCW = false obtienes un poligono exterior.
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* Nota: Solo se le da la vuelta (si es que lo necesita) al
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* poligono exterior. El resto, por ahora, no se tocan.
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* Si se necesita tenerlos en cuenta, habr?a que mirar
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* si est?n dentro del otro, y entonces revisar que tiene
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* un CCW contrario al exterior.
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* @param bCCW true if you want the GeneralPath in CCW order
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* @return true si se le ha dado la vuelta. (true if flipped)
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* TODO: TERMINAR ESTO!! NO EST? COMPLETO!! NO sirve para multipoligonos
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*/
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/**
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* @author Carlos S?nchez Peri??n <a href = "mailto:csanchez@prodevelop.es"> e-mail </a>
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*/
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public class EnsureOrientation extends GeometryOperation{ |
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public static final String NAME = "ensureOrientation"; |
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public static final int CODE = GeometryLocator.getGeometryManager(). |
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getGeometryOperationCode(NAME); |
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private Boolean bCCW; |
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public int getOperationIndex() { |
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return CODE;
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} |
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public Object invoke(Geometry geom, GeometryOperationContext ctx)throws GeometryOperationException { |
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bCCW = (Boolean) ctx.getAttribute("bCCW"); |
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if (bCCW==null) |
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throw new GeometryOperationException(new Exception("The function Parameter hasn't been passed or is null.")); |
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try {
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return new Boolean(((GeometryJTS)geom).ensureOrientation(bCCW.booleanValue())); |
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} catch (GeometryOperationNotSupportedException e) {
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throw new GeometryOperationException(e); |
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} |
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} |
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} |