svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.operation / src / main / java / org / gvsig / fmap / geom / operation / relationship / Touches.java @ 40596
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1 | 40559 | jjdelcerro | /**
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2 | * gvSIG. Desktop Geographic Information System.
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3 | 40435 | jjdelcerro | *
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4 | 40559 | jjdelcerro | * Copyright (C) 2007-2013 gvSIG Association.
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5 | 40435 | jjdelcerro | *
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6 | * This program is free software; you can redistribute it and/or
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7 | * modify it under the terms of the GNU General Public License
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8 | 40559 | jjdelcerro | * as published by the Free Software Foundation; either version 3
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9 | 40435 | jjdelcerro | * of the License, or (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | * MA 02110-1301, USA.
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20 | *
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21 | 40559 | jjdelcerro | * For any additional information, do not hesitate to contact us
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22 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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23 | 40435 | jjdelcerro | */
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24 | package org.gvsig.fmap.geom.operation.relationship; |
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25 | |||
26 | import org.gvsig.fmap.geom.Geometry; |
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27 | import org.gvsig.fmap.geom.GeometryLocator; |
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28 | import org.gvsig.fmap.geom.operation.GeometryOperation; |
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29 | import org.gvsig.fmap.geom.operation.GeometryOperationContext; |
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30 | import org.gvsig.fmap.geom.operation.GeometryOperationException; |
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31 | import org.gvsig.fmap.geom.operation.GeometryOperationNotSupportedException; |
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32 | import org.gvsig.fmap.geom.operation.tojts.ToJTS; |
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33 | import org.gvsig.fmap.geom.primitive.impl.DefaultNullGeometry; |
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34 | |||
35 | /**
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36 | *
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37 | * @author Vicente Caballero Navarro
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38 | *
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39 | */
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40 | public class Touches extends GeometryOperation { |
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41 | public static final String NAME = "touches"; |
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42 | public static final int CODE = GeometryLocator.getGeometryManager(). |
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43 | getGeometryOperationCode(NAME); |
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44 | |||
45 | /*
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46 | * (non-Javadoc)
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47 | *
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48 | * @see org.gvsig.fmap.geom.operation.GeometryOperation#getOperationIndex()
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49 | */
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50 | public int getOperationIndex() { |
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51 | return CODE;
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52 | } |
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53 | |||
54 | /*
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55 | * (non-Javadoc)
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56 | *
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57 | * @see org.gvsig.fmap.geom.operation.GeometryOperation#invoke(org.gvsig.fmap.geom.Geometry,
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58 | * org.gvsig.fmap.geom.operation.GeometryOperationContext)
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59 | */
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60 | public Object invoke(Geometry geom, GeometryOperationContext ctx) |
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61 | throws GeometryOperationException {
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62 | Geometry otherGeom = (Geometry) ctx.getAttribute("geom");
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63 | if (otherGeom instanceof DefaultNullGeometry || geom instanceof DefaultNullGeometry ){ |
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64 | return new Boolean(false); |
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65 | } |
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66 | // TODO optimizar esto para los rectangulos (envelope)
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67 | com.vividsolutions.jts.geom.Geometry jtsGeom = null;
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68 | com.vividsolutions.jts.geom.Geometry otherJtsGeom = null;
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69 | try {
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70 | jtsGeom = (com.vividsolutions.jts.geom.Geometry) geom |
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71 | .invokeOperation(ToJTS.CODE, null);
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72 | } catch (GeometryOperationNotSupportedException e) {
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73 | throw new GeometryOperationException(geom.getType(), CODE, e); |
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74 | } |
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75 | try {
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76 | |||
77 | otherJtsGeom = (com.vividsolutions.jts.geom.Geometry) otherGeom |
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78 | .invokeOperation(ToJTS.CODE, null);
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79 | } catch (GeometryOperationNotSupportedException e) {
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80 | throw new GeometryOperationException(otherGeom.getType(), CODE, e); |
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81 | } |
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82 | if (jtsGeom!=null && otherJtsGeom!=null) |
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83 | return new Boolean(jtsGeom.touches(otherJtsGeom)); |
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84 | return new Boolean(false); |
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85 | } |
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86 | |||
87 | } |