svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.api / src / main / java / org / gvsig / fmap / geom / aggregate / Aggregate.java @ 40559
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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 | *
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6 | 40435 | jjdelcerro | * 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 | 40559 | jjdelcerro | *
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11 | 40435 | jjdelcerro | * 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 | 40559 | jjdelcerro | *
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16 | 40435 | jjdelcerro | * 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 | 40559 | jjdelcerro | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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19 | 40435 | jjdelcerro | * MA 02110-1301, USA.
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20 | 40559 | jjdelcerro | *
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21 | * 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 | /*
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25 | * AUTHORS (In addition to CIT):
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26 | * 2009 {Iver T.I.} {Task}
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27 | */
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28 | |||
29 | package org.gvsig.fmap.geom.aggregate; |
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30 | |||
31 | import org.gvsig.fmap.geom.Geometry; |
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32 | import org.gvsig.fmap.geom.primitive.Primitive; |
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33 | |||
34 | /**
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35 | * <p>
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36 | * This interface is equivalent to the GM_Aggregate specified in
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37 | * <a href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=26012">ISO 19107</a>.
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38 | * The aggregates gather geometric objects. Since they will often use orientation
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39 | * modification, the curve reference and surface references do not go directly to
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40 | * the {@link Curve} and {@link Surface}, but are directed to {@link OrientableCurve}
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41 | * and {@link OrientableSurface}.
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42 | * </p>
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43 | * <p>
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44 | * Most geometric objects are contained in features, and cannot be held in
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45 | * collections that are strong aggregations. For this reason, the collections
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46 | * described on this package are all weak aggregations, and shall use
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47 | * references to include geometric objects.
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48 | * </p>
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49 | * @see <a href="http://www.iso.org/iso/iso_catalogue/catalogue_tc/catalogue_detail.htm?csnumber=26012">ISO 19107</a>
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50 | * @author <a href="mailto:jpiera@gvsig.org">Jorge Piera</a>
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51 | */
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52 | public interface Aggregate extends Geometry{ |
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53 | |||
54 | /**
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55 | * Returns the number of {@link Primitive}'s that composes
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56 | * this multi geometry.
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57 | * @return the number of {@link Primitive}'s that composes
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58 | * this multi geometry.
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59 | */
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60 | public int getPrimitivesNumber(); |
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61 | |||
62 | /**
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63 | * Returns one of the {@link Primitive}'s that is in
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64 | * a concrete position.
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65 | * @param i
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66 | * Geometry position.
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67 | * @return
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68 | * A simple geometry.
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69 | */
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70 | public Primitive getPrimitiveAt(int i); |
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71 | |||
72 | } |