/******************************************************************************* * Copyright (c) 2015 Voyager Search and MITRE * All rights reserved. This program and the accompanying materials * are made available under the terms of the Apache License, Version 2.0 which * accompanies this distribution and is available at * http://www.apache.org/licenses/LICENSE-2.0.txt ******************************************************************************/ package org.locationtech.spatial4j.io.jts; import org.locationtech.spatial4j.context.jts.JtsSpatialContext; import org.locationtech.spatial4j.context.jts.JtsSpatialContextFactory; import org.locationtech.spatial4j.distance.DistanceUtils; import org.locationtech.spatial4j.exception.InvalidShapeException; import org.locationtech.spatial4j.shape.Shape; import org.locationtech.spatial4j.shape.jts.JtsPoint; import org.locationtech.spatial4j.shape.jts.JtsShapeFactory; import com.vividsolutions.jts.geom.CoordinateSequence; import com.vividsolutions.jts.geom.CoordinateSequenceFilter; import com.vividsolutions.jts.geom.Geometry; import com.vividsolutions.jts.io.WKTReader; import java.text.ParseException; /** * This is an extension of Spatial4j's {@link org.locationtech.spatial4j.io.WKTReader} that processes the entire * string with JTS's {@link com.vividsolutions.jts.io.WKTReader}. Some differences: * <ul> * <li>No support for ENVELOPE and BUFFER</li> * <li>MULTI* shapes use JTS's {@link com.vividsolutions.jts.geom.GeometryCollection} subclasses, * not {@link org.locationtech.spatial4j.shape.ShapeCollection}</li> * <li>'Z' coordinates are saved into the geometry</li> * </ul> * */ @Deprecated public class JtsWKTReaderShapeParser extends org.locationtech.spatial4j.io.WKTReader { //Note: Historically, the code here originated from the defunct JtsShapeReadWriter. public JtsWKTReaderShapeParser(JtsSpatialContext ctx, JtsSpatialContextFactory factory) { super(ctx, factory); } @Override public Shape parseIfSupported(String wktString) throws ParseException { return parseIfSupported(wktString, new WKTReader(getShapeFactory().getGeometryFactory())); } private JtsShapeFactory getShapeFactory() { return ((JtsShapeFactory)shapeFactory); } /** * Reads WKT from the {@code str} via JTS's {@link com.vividsolutions.jts.io.WKTReader}. * @param str * @param reader <pre>new WKTReader(ctx.getGeometryFactory()))</pre> * @return Non-Null */ protected Shape parseIfSupported(String str, WKTReader reader) throws ParseException { try { Geometry geom = reader.read(str); //Normalizes & verifies coordinates checkCoordinates(geom); if (geom instanceof com.vividsolutions.jts.geom.Point) { com.vividsolutions.jts.geom.Point ptGeom = (com.vividsolutions.jts.geom.Point) geom; if (getShapeFactory().useJtsPoint()) return new JtsPoint(ptGeom, (JtsSpatialContext) ctx); else return getShapeFactory().pointXY(ptGeom.getX(), ptGeom.getY()); } else if (geom.isRectangle()) { return getShapeFactory().makeRectFromRectangularPoly(geom); } else { return getShapeFactory().makeShapeFromGeometry(geom); } } catch (InvalidShapeException e) { throw e; } catch (Exception e) { throw new InvalidShapeException("error reading WKT: "+e.toString(), e); } } protected void checkCoordinates(Geometry geom) { // note: JTS WKTReader has already normalized coords with the JTS PrecisionModel. geom.apply(new CoordinateSequenceFilter() { boolean changed = false; @Override public void filter(CoordinateSequence seq, int i) { double x = seq.getX(i); double y = seq.getY(i); //Note: we don't simply call ctx.normX & normY because // those methods use the precisionModel, but WKTReader already // used the precisionModel. It's be nice to turn that off somehow but alas. if (ctx.isGeo() && ctx.isNormWrapLongitude()) { double xNorm = DistanceUtils.normLonDEG(x); if (Double.compare(x, xNorm) != 0) {//handles NaN changed = true; seq.setOrdinate(i, CoordinateSequence.X, xNorm); } // double yNorm = DistanceUtils.normLatDEG(y); // if (y != yNorm) { // changed = true; // seq.setOrdinate(i,CoordinateSequence.Y,yNorm); // } } ctx.verifyX(x); ctx.verifyY(y); } @Override public boolean isDone() { return false; } @Override public boolean isGeometryChanged() { return changed; } }); } }