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Merge pull request #1392 from ebocher/h2_jts_update
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72
h2gis-functions/src/main/java/org/h2gis/functions/spatial/predicates/ST_CoveredBy.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,72 @@ | ||
| /** | ||
| * H2GIS is a library that brings spatial support to the H2 Database Engine | ||
| * <a href="http://www.h2database.com">http://www.h2database.com</a>. H2GIS is developed by CNRS | ||
| * <a href="http://www.cnrs.fr/">http://www.cnrs.fr/</a>. | ||
| * | ||
| * This code is part of the H2GIS project. H2GIS is free software; | ||
| * you can redistribute it and/or modify it under the terms of the GNU | ||
| * Lesser General Public License as published by the Free Software Foundation; | ||
| * version 3.0 of the License. | ||
| * | ||
| * H2GIS is distributed in the hope that it will be useful, but | ||
| * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License | ||
| * for more details <http://www.gnu.org/licenses/>. | ||
| * | ||
| * | ||
| * For more information, please consult: <a href="http://www.h2gis.org/">http://www.h2gis.org/</a> | ||
| * or contact directly: info_at_h2gis.org | ||
| */ | ||
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| package org.h2gis.functions.spatial.predicates; | ||
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| import org.h2gis.api.DeterministicScalarFunction; | ||
| import org.locationtech.jts.geom.Geometry; | ||
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| import java.sql.SQLException; | ||
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| /** | ||
| * ST_CoveredBy returns true if no point in geometry B is outside geometry A. | ||
| * | ||
| * @author Erwan Bocher | ||
| */ | ||
| public class ST_CoveredBy extends DeterministicScalarFunction { | ||
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| public ST_CoveredBy() { | ||
| addProperty(PROP_REMARKS, "Returns true if this geomA is covered by geomB according the definitions : \n" + | ||
| "Every point of this geometry is a point of the other geometry.\n" + | ||
| "The DE-9IM Intersection Matrix for the two geometries matches\n" + | ||
| " at least one of the following patterns:\n" + | ||
| " [T*F**F***]\n" + | ||
| " [*TF**F***]\n" + | ||
| " [**FT*F***]\n" + | ||
| " [**F*TF***]\n"); | ||
| } | ||
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| @Override | ||
| public String getJavaStaticMethod() { | ||
| return "execute"; | ||
| } | ||
|
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| /** | ||
| * Returns true if this geomA is covered by geomB | ||
| * | ||
| * @param geomA Geometry A | ||
| * @param geomB Geometry B | ||
| * @return if this geomA is covered by geomB | ||
| * @throws SQLException | ||
| */ | ||
| public static Boolean execute(Geometry geomA, Geometry geomB) throws SQLException { | ||
| if(geomA == null||geomB == null){ | ||
| return null; | ||
| } | ||
| if(geomA.isEmpty() || geomB.isEmpty()){ | ||
| return false; | ||
| } | ||
|
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| if(geomA.getSRID()!=geomB.getSRID()){ | ||
| throw new SQLException("Operation on mixed SRID geometries not supported"); | ||
| } | ||
| return geomA.coveredBy(geomB); | ||
| } | ||
| } |
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