svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.jts / src / main / java / org / gvsig / fmap / geom / jts / util / JTSUtils.java @ 45910
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/* gvSIG. Desktop Geographic Information System.
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*
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* Copyright ? 2007-2015 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.jts.util; |
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import java.util.ArrayList; |
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import java.util.List; |
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import com.vividsolutions.jts.geom.Coordinate; |
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import com.vividsolutions.jts.geom.CoordinateSequence; |
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import com.vividsolutions.jts.geom.GeometryCollection; |
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import com.vividsolutions.jts.geom.LineSegment; |
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import com.vividsolutions.jts.geom.LineString; |
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import com.vividsolutions.jts.geom.LinearRing; |
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import com.vividsolutions.jts.geom.MultiLineString; |
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import com.vividsolutions.jts.geom.MultiPoint; |
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import com.vividsolutions.jts.geom.MultiPolygon; |
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import com.vividsolutions.jts.geom.Triangle; |
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import com.vividsolutions.jts.operation.buffer.BufferParameters; |
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import com.vividsolutions.jts.operation.buffer.OffsetCurveBuilder; |
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import com.vividsolutions.jts.util.GeometricShapeFactory; |
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import org.cresques.cts.IProjection; |
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import org.hibernate.spatial.jts.mgeom.MCoordinateSequence; |
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import org.hibernate.spatial.jts.mgeom.MGeometryFactory; |
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import org.slf4j.Logger; |
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import org.slf4j.LoggerFactory; |
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import org.gvsig.fmap.geom.Geometry; |
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import static org.gvsig.fmap.geom.Geometry.JOIN_STYLE_BEVEL; |
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import static org.gvsig.fmap.geom.Geometry.JOIN_STYLE_MITRE; |
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import static org.gvsig.fmap.geom.Geometry.JOIN_STYLE_ROUND; |
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import org.gvsig.fmap.geom.GeometryException; |
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import org.gvsig.fmap.geom.aggregate.MultiPrimitive; |
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import org.gvsig.fmap.geom.exception.CreateGeometryException; |
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import org.gvsig.fmap.geom.jts.GeometryJTS; |
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import org.gvsig.fmap.geom.jts.MCoordinate; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiLine2D; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiLine2DM; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiLine3D; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiLine3DM; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPoint2D; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPoint2DM; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPoint3D; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPoint3DM; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPolygon2D; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPolygon2DM; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPolygon3D; |
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import org.gvsig.fmap.geom.jts.aggregate.MultiPolygon3DM; |
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import org.gvsig.fmap.geom.jts.complex.DefaultComplex; |
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import org.gvsig.fmap.geom.jts.primitive.curve.line.Line2D; |
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import org.gvsig.fmap.geom.jts.primitive.curve.line.Line2DM; |
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import org.gvsig.fmap.geom.jts.primitive.curve.line.Line3D; |
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import org.gvsig.fmap.geom.jts.primitive.curve.line.Line3DM; |
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import org.gvsig.fmap.geom.jts.primitive.point.Point2D; |
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import org.gvsig.fmap.geom.jts.primitive.point.Point2DM; |
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import org.gvsig.fmap.geom.jts.primitive.point.Point3D; |
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import org.gvsig.fmap.geom.jts.primitive.point.Point3DM; |
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import org.gvsig.fmap.geom.jts.primitive.point.PointJTS; |
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import org.gvsig.fmap.geom.jts.primitive.ring.Ring2D; |
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import org.gvsig.fmap.geom.jts.primitive.ring.Ring2DM; |
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import org.gvsig.fmap.geom.jts.primitive.ring.Ring3D; |
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import org.gvsig.fmap.geom.jts.primitive.ring.Ring3DM; |
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import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon2D; |
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import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon2DM; |
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import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon3D; |
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import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon3DM; |
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import org.gvsig.fmap.geom.primitive.Line; |
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import org.gvsig.fmap.geom.primitive.Point; |
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import org.gvsig.fmap.geom.primitive.Polygon; |
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import org.gvsig.fmap.geom.primitive.Primitive; |
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import org.gvsig.fmap.geom.primitive.Ring; |
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import org.gvsig.fmap.geom.type.GeometryType; |
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/**
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* @author fdiaz
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*
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*/
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public class JTSUtils { |
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public static final Logger logger = LoggerFactory.getLogger(JTSUtils.class); |
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private static class MyMGeometryFactory extends org.hibernate.spatial.jts.mgeom.MGeometryFactory { |
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/**
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*
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*/
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private static final long serialVersionUID = -8174926092714691479L; |
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public com.vividsolutions.jts.geom.Point createPoint(CoordinateSequence coordinates) {
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if(!(coordinates instanceof MCoordinateSequence)){ |
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if (coordinates != null) { |
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coordinates = new MCoordinateSequence(coordinates);
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} |
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} |
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return (com.vividsolutions.jts.geom.Point) new com.vividsolutions.jts.geom.Point(coordinates, this); |
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} |
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public LinearRing createLinearRing(CoordinateSequence coordinates) {
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if(!(coordinates instanceof MCoordinateSequence)){ |
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if (coordinates != null) { |
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coordinates = new MCoordinateSequence(coordinates);
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} |
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} |
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return super.createLinearRing(coordinates); |
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} |
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@Override
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public LineString createLineString(CoordinateSequence coordinates) {
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if(!(coordinates instanceof MCoordinateSequence)){ |
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if (coordinates != null) { |
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coordinates = new MCoordinateSequence(coordinates);
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} |
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} |
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return super.createLineString(coordinates); |
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} |
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public MultiPoint createMultiPoint(CoordinateSequence coordinates) {
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if(!(coordinates instanceof MCoordinateSequence)){ |
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if (coordinates != null) { |
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coordinates = new MCoordinateSequence(coordinates);
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} |
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} |
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return super.createMultiPoint(coordinates); |
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} |
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} |
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private static final com.vividsolutions.jts.geom.GeometryFactory factory = |
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new com.vividsolutions.jts.geom.GeometryFactory();
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private static final com.vividsolutions.jts.geom.GeometryFactory mfactory = new MyMGeometryFactory(); |
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public static Point createPoint(GeometryType type, IProjection proj, Coordinate coordinate) throws CreateGeometryException { |
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Point p;
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switch (type.getSubType()) {
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case Geometry.SUBTYPES.GEOM2D:
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p = new Point2D(proj, coordinate); |
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break;
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case Geometry.SUBTYPES.GEOM2DM:
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p = new Point2DM(proj, coordinate);
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break;
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case Geometry.SUBTYPES.GEOM3D:
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p = new Point3D(proj, coordinate);
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break;
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case Geometry.SUBTYPES.GEOM3DM:
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p = new Point3DM(proj, coordinate);
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break;
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default:
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p = (Point) type.create();
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for (int i = 0; i < p.getDimension(); i++) { |
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p.setCoordinateAt(i, coordinate.getOrdinate(i)); |
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} |
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p.setProjection(proj); |
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break;
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} |
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return p;
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} |
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public static com.vividsolutions.jts.geom.GeometryFactory getFactory(CoordinateSequence coordinates){ |
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com.vividsolutions.jts.geom.GeometryFactory factory = JTSUtils.factory; |
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if(coordinates.size()>0 && coordinates.getCoordinate(0) instanceof org.hibernate.spatial.jts.mgeom.MCoordinate){ |
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factory = mfactory; |
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} |
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return factory;
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} |
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public static com.vividsolutions.jts.geom.GeometryFactory getFactory(Coordinate coordinate) { |
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com.vividsolutions.jts.geom.GeometryFactory factory = JTSUtils.factory; |
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if(coordinate instanceof org.hibernate.spatial.jts.mgeom.MCoordinate){ |
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factory = mfactory; |
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} |
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return factory;
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} |
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public static com.vividsolutions.jts.geom.GeometryFactory getFactory(Coordinate[] coordinates) { |
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com.vividsolutions.jts.geom.GeometryFactory factory = JTSUtils.factory; |
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if(coordinates.length>0 && coordinates[0] instanceof org.hibernate.spatial.jts.mgeom.MCoordinate){ |
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factory = mfactory; |
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} |
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return factory;
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} |
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public static LineString createJTSLineString(CoordinateSequence coordinates) { |
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return getFactory(coordinates).createLineString(coordinates);
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} |
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public static LinearRing createJTSLinearRing(CoordinateSequence coordinates) { |
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return getFactory(coordinates).createLinearRing(coordinates);
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} |
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public static MultiPoint createJTSMultiPoint(CoordinateSequence coordinates) { |
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return getFactory(coordinates).createMultiPoint(coordinates);
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} |
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public static Geometry createGeometry(IProjection proj, com.vividsolutions.jts.geom.Geometry jtsGeom) { |
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if (jtsGeom instanceof com.vividsolutions.jts.geom.Point) { |
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Coordinate coordinate = jtsGeom.getCoordinate(); |
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if (jtsGeom.getFactory() instanceof MyMGeometryFactory) { |
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if (Double.isNaN(coordinate.z)) { |
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return new Point2DM(proj, coordinate); |
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} else {
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return new Point3DM(proj, coordinate); |
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} |
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} else {
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if (Double.isNaN(coordinate.z)) { |
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return new Point2D(proj, coordinate); |
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} else {
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return new Point3D(proj, coordinate); |
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} |
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} |
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} |
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if (jtsGeom instanceof com.vividsolutions.jts.geom.LineString) { |
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Coordinate[] coordinates = jtsGeom.getCoordinates();
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Coordinate coordinate = jtsGeom.getCoordinate(); |
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com.vividsolutions.jts.geom.LineString lineString = (com.vividsolutions.jts.geom.LineString) jtsGeom; |
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if (!lineString.isEmpty()) {
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Line line;
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if (jtsGeom.getFactory() instanceof MGeometryFactory) { |
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if (coordinate!=null && Double.isNaN(coordinate.z)) { |
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line = new Line2DM(coordinates);
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} else {
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line = new Line3DM(coordinates);
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} |
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} else {
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if (coordinate!=null && Double.isNaN(coordinate.z)) { |
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line = new Line2D(coordinates); |
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} else {
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line = new Line3D(coordinates);
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} |
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} |
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line.setProjection(proj); |
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return line;
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} |
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} |
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if (jtsGeom instanceof com.vividsolutions.jts.geom.Polygon && !jtsGeom.isEmpty()) { |
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Polygon polygon;
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com.vividsolutions.jts.geom.Polygon polygonJTS = (com.vividsolutions.jts.geom.Polygon)jtsGeom; |
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Coordinate[] coordinates = polygonJTS.getExteriorRing().getCoordinates();
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Coordinate coordinate = jtsGeom.getCoordinate(); |
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if (jtsGeom.getFactory() instanceof MyMGeometryFactory) { |
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if (Double.isNaN(coordinate.z)) { |
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polygon = new Polygon2DM(coordinates);
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} else {
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polygon = new Polygon3DM(coordinates);
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} |
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} else {
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if (Double.isNaN(coordinate.z)) { |
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polygon = new Polygon2D(coordinates);
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} else {
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polygon = new Polygon3D(coordinates);
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} |
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} |
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polygon.setProjection(proj); |
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for(int i = 0; i<polygonJTS.getNumInteriorRing(); i++){ |
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LineString ringJTS = polygonJTS.getInteriorRingN(i); |
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coordinates = ringJTS.getCoordinates(); |
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coordinate = ringJTS.getCoordinate(); |
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Ring ring; |
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if (jtsGeom.getFactory() instanceof MyMGeometryFactory) { |
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if (Double.isNaN(coordinate.z)) { |
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ring = new Ring2DM(coordinates);
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} else {
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ring = new Ring3DM(coordinates);
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} |
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} else {
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if (Double.isNaN(coordinate.z)) { |
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ring = new Ring2D(coordinates);
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} else {
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ring = new Ring3D(coordinates);
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} |
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} |
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ring.setProjection(proj); |
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polygon.addInteriorRing(ring); |
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} |
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return polygon;
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} |
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if (jtsGeom instanceof com.vividsolutions.jts.geom.GeometryCollection) { |
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GeometryCollection collection = (com.vividsolutions.jts.geom.GeometryCollection)jtsGeom; |
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Coordinate coordinate = collection.getCoordinate(); |
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MultiPrimitive multiprimitive = null;
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if (jtsGeom instanceof MultiLineString) { |
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if (jtsGeom.getFactory() instanceof MyMGeometryFactory) { |
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if (Double.isNaN(coordinate.z)) { |
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multiprimitive = new MultiLine2DM();
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} else {
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multiprimitive = new MultiLine3DM();
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} |
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} else {
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if (Double.isNaN(coordinate.z)) { |
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multiprimitive = new MultiLine2D();
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} else {
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multiprimitive = new MultiLine3D();
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} |
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} |
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} else if (jtsGeom instanceof MultiPolygon) { |
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if (jtsGeom.getFactory() instanceof MyMGeometryFactory) { |
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if (Double.isNaN(coordinate.z)) { |
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multiprimitive = new MultiPolygon2DM();
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} else {
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multiprimitive = new MultiPolygon3DM();
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} |
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} else {
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if (Double.isNaN(coordinate.z)) { |
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multiprimitive = new MultiPolygon2D();
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} else {
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multiprimitive = new MultiPolygon3D();
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} |
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} |
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} else if (jtsGeom instanceof MultiPoint) { |
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if (jtsGeom.getFactory() instanceof MyMGeometryFactory) { |
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if (Double.isNaN(coordinate.z)) { |
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multiprimitive = new MultiPoint2DM();
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} else {
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multiprimitive = new MultiPoint3DM();
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} |
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} else {
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if (Double.isNaN(coordinate.z)) { |
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multiprimitive = new MultiPoint2D();
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} else {
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multiprimitive = new MultiPoint3D();
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} |
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} |
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} |
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if (multiprimitive != null) { |
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for (int i = 0; i < collection.getNumGeometries(); i++) { |
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com.vividsolutions.jts.geom.Geometry geometry = collection.getGeometryN(i); |
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multiprimitive.addPrimitive((Primitive) createGeometry(proj, geometry)); |
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} |
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multiprimitive.setProjection(proj); |
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return multiprimitive;
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} else {
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int subtype;
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if (jtsGeom.getFactory() instanceof MyMGeometryFactory) { |
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if (Double.isNaN(coordinate.z)) { |
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subtype = Geometry.SUBTYPES.GEOM2DM; |
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} else {
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subtype = Geometry.SUBTYPES.GEOM3DM; |
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} |
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} else {
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if (Double.isNaN(coordinate.z)) { |
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subtype = Geometry.SUBTYPES.GEOM2D; |
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} else {
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subtype = Geometry.SUBTYPES.GEOM3D; |
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} |
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} |
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DefaultComplex complex = new DefaultComplex(subtype);
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for (int i = 0; i < collection.getNumGeometries(); i++) { |
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com.vividsolutions.jts.geom.Geometry geometry = collection.getGeometryN(i); |
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complex.addPrimitive((Primitive) createGeometry(proj, geometry)); |
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} |
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complex.setProjection(proj); |
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return complex;
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} |
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} |
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return null; |
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} |
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/**
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* This function is called when the we need force types, that is the
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* destination
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* type does not match with the input geometry type
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*
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* @param g
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* @param sourceType
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* @param destinationType
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* @return
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*/
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public static com.vividsolutions.jts.geom.Geometry convertTypes(com.vividsolutions.jts.geom.Geometry g, |
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int sourceType, int destinationType) { |
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com.vividsolutions.jts.geom.GeometryFactory factory = g.getFactory(); |
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if ((sourceType == Geometry.TYPES.CURVE || sourceType == Geometry.TYPES.SPLINE
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|| sourceType == Geometry.TYPES.ARC || sourceType == Geometry.TYPES.ELLIPTICARC |
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|| sourceType == Geometry.TYPES.CIRCUMFERENCE || sourceType == Geometry.TYPES.PERIELLIPSE) |
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&& destinationType == Geometry.TYPES.MULTISURFACE) {
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if (g instanceof MultiLineString) { |
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com.vividsolutions.jts.geom.Polygon[] poly = new com.vividsolutions.jts.geom.Polygon[((MultiLineString) g).getNumGeometries()]; |
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for (int i = 0; i < ((MultiLineString) g).getNumGeometries(); i++) { |
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com.vividsolutions.jts.geom.Geometry lineString = ((MultiLineString) g).getGeometryN(i); |
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poly[i] = convertLineStringToPolygon((LineString) lineString); |
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} |
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return factory.createMultiPolygon(poly);
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} else {
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return convertLineStringToPolygon((LineString) g);
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} |
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} |
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if ((sourceType == Geometry.TYPES.CIRCLE || sourceType == Geometry.TYPES.ELLIPSE
|
| 417 |
|| sourceType == Geometry.TYPES.ELLIPTICARC || sourceType == Geometry.TYPES.FILLEDSPLINE) |
| 418 |
&& destinationType == Geometry.TYPES.MULTICURVE) {
|
| 419 |
if (g instanceof com.vividsolutions.jts.geom.Polygon) { |
| 420 |
com.vividsolutions.jts.geom.Polygon poly = (com.vividsolutions.jts.geom.Polygon) g; |
| 421 |
LineString lineString = factory.createLinearRing(poly.getCoordinates()); |
| 422 |
return factory.createMultiLineString(new LineString[] { lineString }); |
| 423 |
} |
| 424 |
} |
| 425 |
return g;
|
| 426 |
} |
| 427 |
|
| 428 |
private static com.vividsolutions.jts.geom.Polygon convertLineStringToPolygon(LineString line) { |
| 429 |
Coordinate[] coordinates = line.getCoordinates();
|
| 430 |
com.vividsolutions.jts.geom.GeometryFactory factory = line.getFactory(); |
| 431 |
LinearRing shell = factory.createLinearRing(coordinates); |
| 432 |
com.vividsolutions.jts.geom.Polygon pol = factory.createPolygon(shell, null);
|
| 433 |
return pol;
|
| 434 |
} |
| 435 |
|
| 436 |
public static MCoordinate createMCoordinate(double x, double y, double m) { |
| 437 |
return MCoordinate.create2dWithMeasure(x, y, m);
|
| 438 |
} |
| 439 |
|
| 440 |
public static MCoordinate createMCoordinate(double x, double y, double z, double m) { |
| 441 |
return MCoordinate.create3dWithMeasure(x, y, z, m);
|
| 442 |
} |
| 443 |
|
| 444 |
/**
|
| 445 |
* @param init
|
| 446 |
* @param middle
|
| 447 |
* @param end
|
| 448 |
* @return
|
| 449 |
*/
|
| 450 |
public static Coordinate getCircumcentre(Point init, Point middle, Point end) { |
| 451 |
Triangle triangle = |
| 452 |
new Triangle(((PointJTS) init).getJTSCoordinate(),
|
| 453 |
((PointJTS) middle).getJTSCoordinate(), |
| 454 |
((PointJTS) end).getJTSCoordinate()); |
| 455 |
return triangle.circumcentre();
|
| 456 |
} |
| 457 |
|
| 458 |
public static LineString createJTSLineStringFromArcPoints(Point centre, double radius, double startAngle, double endAngle){ |
| 459 |
GeometricShapeFactory shapeFactory = new GeometricShapeFactory();
|
| 460 |
shapeFactory.setCentre(((PointJTS)centre).getJTSCoordinate()); |
| 461 |
shapeFactory.setSize(radius*2);
|
| 462 |
return shapeFactory.createArc(startAngle, endAngle);
|
| 463 |
} |
| 464 |
|
| 465 |
public static MultiLineString createJTSMultiLineString(LineString[] lineStrings) { |
| 466 |
com.vividsolutions.jts.geom.GeometryFactory factory = JTSUtils.factory; |
| 467 |
if(lineStrings.length>0){ |
| 468 |
factory = lineStrings[0].getFactory();
|
| 469 |
} |
| 470 |
return factory.createMultiLineString(lineStrings);
|
| 471 |
} |
| 472 |
|
| 473 |
/**
|
| 474 |
* @param coordinates
|
| 475 |
* @param interiorRings
|
| 476 |
* @return
|
| 477 |
* @throws GeometryException
|
| 478 |
*/
|
| 479 |
public static com.vividsolutions.jts.geom.Polygon createJTSPolygon(ArrayListCoordinateSequence coordinates, |
| 480 |
List<Ring> interiorRings) {
|
| 481 |
com.vividsolutions.jts.geom.GeometryFactory factory = getFactory(coordinates); |
| 482 |
|
| 483 |
LinearRing shell = factory.createLinearRing(coordinates); |
| 484 |
LinearRing[] holes = new LinearRing[interiorRings.size()]; |
| 485 |
for(int i=0; i<interiorRings.size(); i++){ |
| 486 |
Ring ring = interiorRings.get(i); |
| 487 |
holes[i] = (LinearRing) ((GeometryJTS) ring).getJTS(); |
| 488 |
} |
| 489 |
return factory.createPolygon(shell, holes);
|
| 490 |
} |
| 491 |
|
| 492 |
|
| 493 |
/**
|
| 494 |
* @param coordinates
|
| 495 |
* @return
|
| 496 |
* @throws GeometryException
|
| 497 |
*/
|
| 498 |
public static com.vividsolutions.jts.geom.Polygon createJTSPolygon(ArrayListCoordinateSequence coordinates) { |
| 499 |
com.vividsolutions.jts.geom.GeometryFactory factory = getFactory(coordinates); |
| 500 |
|
| 501 |
LinearRing shell = factory.createLinearRing(coordinates); |
| 502 |
return factory.createPolygon(shell);
|
| 503 |
} |
| 504 |
|
| 505 |
public static com.vividsolutions.jts.geom.MultiPolygon createJTSMultiPolygon(com.vividsolutions.jts.geom.Polygon[] polygons){ |
| 506 |
com.vividsolutions.jts.geom.GeometryFactory factory = JTSUtils.factory; |
| 507 |
if(polygons.length>0){ |
| 508 |
factory = polygons[0].getFactory();
|
| 509 |
} |
| 510 |
return factory.createMultiPolygon(polygons);
|
| 511 |
} |
| 512 |
|
| 513 |
/**
|
| 514 |
* Returns the intersection point between an ellipse and her minor axis.
|
| 515 |
*
|
| 516 |
* @param init
|
| 517 |
* @param middle
|
| 518 |
* @param end
|
| 519 |
* @return
|
| 520 |
*/
|
| 521 |
public static Coordinate getPointAtYAxisInEllipse(Point init, Point end, Double ydist) { |
| 522 |
|
| 523 |
LineSegment segment = new LineSegment(((PointJTS) init).getJTSCoordinate(),
|
| 524 |
((PointJTS) end).getJTSCoordinate()); |
| 525 |
Coordinate middle = segment.midPoint(); |
| 526 |
|
| 527 |
LineSegment midSegment = new LineSegment(middle, ((PointJTS) end).getJTSCoordinate());
|
| 528 |
double modulus = midSegment.getLength();
|
| 529 |
|
| 530 |
//Mayor semi-axis unitary vector
|
| 531 |
Coordinate uni = new Coordinate((end.getX()-middle.x)/modulus, (end.getY()-middle.y)/modulus);
|
| 532 |
|
| 533 |
//Minor axis unitary vector
|
| 534 |
Coordinate perpUni = new Coordinate(-uni.y,uni.x);
|
| 535 |
|
| 536 |
Coordinate point = new Coordinate(middle.x+(perpUni.x*ydist), middle.y+(perpUni.y*ydist));
|
| 537 |
|
| 538 |
return point;
|
| 539 |
} |
| 540 |
|
| 541 |
/**
|
| 542 |
* Returns the middle point between two points.
|
| 543 |
*
|
| 544 |
* @param init
|
| 545 |
* @param middle
|
| 546 |
* @param end
|
| 547 |
* @return
|
| 548 |
*/
|
| 549 |
public static Coordinate getMidPoint(Point init, Point end) { |
| 550 |
|
| 551 |
LineSegment segment = new LineSegment(((PointJTS) init).getJTSCoordinate(),
|
| 552 |
((PointJTS) end).getJTSCoordinate()); |
| 553 |
Coordinate middle = segment.midPoint(); |
| 554 |
return middle;
|
| 555 |
} |
| 556 |
|
| 557 |
/**
|
| 558 |
* @param coordinate
|
| 559 |
* @return
|
| 560 |
*/
|
| 561 |
public static com.vividsolutions.jts.geom.Geometry createJTSPoint(Coordinate coordinate) { |
| 562 |
return getFactory(coordinate).createPoint(coordinate);
|
| 563 |
} |
| 564 |
|
| 565 |
/**
|
| 566 |
* @param coord
|
| 567 |
* @return
|
| 568 |
*/
|
| 569 |
public static com.vividsolutions.jts.geom.Geometry createJTSPolygon(Coordinate[] coordinates) { |
| 570 |
return getFactory(coordinates).createPolygon(coordinates);
|
| 571 |
} |
| 572 |
|
| 573 |
public static BufferParameters getBufferParameters(){ |
| 574 |
BufferParameters bufParams = new BufferParameters();
|
| 575 |
bufParams.setSingleSided(true);
|
| 576 |
bufParams.setEndCapStyle(BufferParameters.CAP_FLAT); |
| 577 |
bufParams.setJoinStyle(BufferParameters.CAP_ROUND); |
| 578 |
return bufParams;
|
| 579 |
} |
| 580 |
|
| 581 |
public static BufferParameters getBufferParameters(int joinStyle, int endCapStyle){ |
| 582 |
BufferParameters bufParams = new BufferParameters();
|
| 583 |
bufParams.setSingleSided(true);
|
| 584 |
bufParams.setEndCapStyle(endCapStyle); |
| 585 |
bufParams.setJoinStyle(joinStyle); |
| 586 |
bufParams.setQuadrantSegments(calculateQuadrantSegments(joinStyle)); |
| 587 |
return bufParams;
|
| 588 |
} |
| 589 |
|
| 590 |
public static int calculateQuadrantSegments(int joinStyle) throws IllegalArgumentException { |
| 591 |
int quadrantSegments = BufferParameters.DEFAULT_QUADRANT_SEGMENTS;
|
| 592 |
switch(joinStyle){
|
| 593 |
case JOIN_STYLE_ROUND:
|
| 594 |
quadrantSegments = BufferParameters.DEFAULT_QUADRANT_SEGMENTS; |
| 595 |
break;
|
| 596 |
case JOIN_STYLE_MITRE:
|
| 597 |
quadrantSegments = - (int) BufferParameters.DEFAULT_MITRE_LIMIT;
|
| 598 |
break;
|
| 599 |
case JOIN_STYLE_BEVEL:
|
| 600 |
quadrantSegments = 0;
|
| 601 |
break;
|
| 602 |
default:
|
| 603 |
throw new IllegalArgumentException("Invalid jointStyle "+joinStyle); |
| 604 |
} |
| 605 |
return quadrantSegments;
|
| 606 |
} |
| 607 |
|
| 608 |
/**
|
| 609 |
* Creates a offset from a closed line at a distance
|
| 610 |
*
|
| 611 |
* @param proj
|
| 612 |
* @param coordinates
|
| 613 |
* @param distance
|
| 614 |
* @return
|
| 615 |
*/
|
| 616 |
public static Geometry offsetClosedLine(IProjection proj, ArrayListCoordinateSequence coordinates, double distance) { |
| 617 |
com.vividsolutions.jts.geom.Geometry jtsGeom = JTSUtils.createJTSPolygon(coordinates); |
| 618 |
com.vividsolutions.jts.geom.Geometry geomJTS = jtsGeom.buffer(distance); |
| 619 |
return jtsPolygonToJtsMultiLineString(geomJTS, proj);
|
| 620 |
} |
| 621 |
|
| 622 |
/**
|
| 623 |
* Creates a offset from a closed line at a distance
|
| 624 |
*
|
| 625 |
* @param proj
|
| 626 |
* @param coordinates
|
| 627 |
* @param joinStyle
|
| 628 |
* @param distance
|
| 629 |
* @return
|
| 630 |
*/
|
| 631 |
public static Geometry offsetClosedLine(IProjection proj, ArrayListCoordinateSequence coordinates, int joinStyle, double distance) { |
| 632 |
com.vividsolutions.jts.geom.Geometry jtsGeom = JTSUtils.createJTSPolygon(coordinates); |
| 633 |
com.vividsolutions.jts.geom.Geometry geomJTS = jtsGeom.buffer(distance, calculateQuadrantSegments(joinStyle), BufferParameters.CAP_FLAT); |
| 634 |
return jtsPolygonToJtsMultiLineString(geomJTS, proj);
|
| 635 |
} |
| 636 |
|
| 637 |
protected static Geometry jtsPolygonToJtsMultiLineString(com.vividsolutions.jts.geom.Geometry geomJTS, IProjection proj) { |
| 638 |
if (geomJTS instanceof com.vividsolutions.jts.geom.Polygon) { |
| 639 |
com.vividsolutions.jts.geom.Polygon polygonJTS = (com.vividsolutions.jts.geom.Polygon) geomJTS; |
| 640 |
LineString shell = polygonJTS.getExteriorRing(); |
| 641 |
int numHoles = polygonJTS.getNumInteriorRing();
|
| 642 |
if (numHoles > 0) { |
| 643 |
LineString[] lineStrings = new LineString[numHoles + 1]; |
| 644 |
lineStrings[0] = shell;
|
| 645 |
for (int i = 0; i < numHoles; i++) { |
| 646 |
LineString hole = polygonJTS.getInteriorRingN(i); |
| 647 |
lineStrings[i + 1] = hole;
|
| 648 |
} |
| 649 |
return JTSUtils.createGeometry(proj, JTSUtils.createJTSMultiLineString(lineStrings));
|
| 650 |
} |
| 651 |
return JTSUtils.createGeometry(proj, shell);
|
| 652 |
} else if (geomJTS instanceof com.vividsolutions.jts.geom.MultiPolygon) { |
| 653 |
MultiPolygon multiPolygonJTS = (com.vividsolutions.jts.geom.MultiPolygon) geomJTS; |
| 654 |
List<LineString> lineStringList = new ArrayList<>(); |
| 655 |
for (int i = 0; i < multiPolygonJTS.getNumGeometries(); i++) { |
| 656 |
com.vividsolutions.jts.geom.Polygon polygonJTS = |
| 657 |
(com.vividsolutions.jts.geom.Polygon) multiPolygonJTS.getGeometryN(i); |
| 658 |
lineStringList.add(polygonJTS.getExteriorRing()); |
| 659 |
int numHoles = polygonJTS.getNumInteriorRing();
|
| 660 |
if (numHoles > 0) { |
| 661 |
for (int h = 0; h < numHoles; h++) { |
| 662 |
LineString hole = polygonJTS.getInteriorRingN(i); |
| 663 |
lineStringList.add(hole); |
| 664 |
} |
| 665 |
} |
| 666 |
} |
| 667 |
return JTSUtils.createGeometry(proj, JTSUtils.createJTSMultiLineString(lineStringList.toArray(new LineString[lineStringList.size()]))); |
| 668 |
} |
| 669 |
//No deber?a pasar por aqu?
|
| 670 |
logger.warn("offsetClosedLine does not return or Polygon JTS or MultiPolygon JTS");
|
| 671 |
return null; |
| 672 |
} |
| 673 |
|
| 674 |
/**
|
| 675 |
* Creates a raw offset of a open line at a distance.
|
| 676 |
*
|
| 677 |
* @param coordinates
|
| 678 |
* @param distance
|
| 679 |
* @return
|
| 680 |
*/
|
| 681 |
public static Geometry offsetRawOpenLine(IProjection proj, ArrayListCoordinateSequence coordinates, double distance) { |
| 682 |
com.vividsolutions.jts.geom.GeometryFactory factory = getFactory(coordinates); |
| 683 |
|
| 684 |
BufferParameters bufParams = JTSUtils.getBufferParameters(); |
| 685 |
LineString jtsGeom = JTSUtils.createJTSLineString(coordinates); |
| 686 |
|
| 687 |
OffsetCurveBuilder ocb = new
|
| 688 |
OffsetCurveBuilder(factory.getPrecisionModel(), bufParams); |
| 689 |
Coordinate[] coords = ocb.getOffsetCurve(jtsGeom.getCoordinates(), distance);
|
| 690 |
CoordinateSequence coordSequence = factory.getCoordinateSequenceFactory().create(coords); |
| 691 |
com.vividsolutions.jts.geom.Geometry offsetGeom = JTSUtils.createJTSLineString(coordSequence); |
| 692 |
|
| 693 |
return JTSUtils.createGeometry(proj, offsetGeom);
|
| 694 |
} |
| 695 |
|
| 696 |
/*
|
| 697 |
*
|
| 698 |
*/
|
| 699 |
public static double straightLineThroughTwoPointsEquation(double x1, double x2, double y1, double y2, double x) { |
| 700 |
if (x2 - x1 == 0.0) { |
| 701 |
return Double.POSITIVE_INFINITY; |
| 702 |
} |
| 703 |
return ((y2 - y1) * (x - x1) / (x2 - x1)) + y1;
|
| 704 |
} |
| 705 |
|
| 706 |
} |