/*
* KMLCoordinates.java
*
* Copyright (c) 2002-2015 Alexei Drummond, Andrew Rambaut and Marc Suchard
*
* This file is part of BEAST.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* BEAST 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; either version 2
* of the License, or (at your option) any later version.
*
* BEAST 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.
*
* You should have received a copy of the GNU Lesser General Public
* License along with BEAST; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package dr.geo;
import dr.xml.*;
import org.jdom.Element;
import java.util.Arrays;
import java.util.StringTokenizer;
/**
* @author Marc A. Suchard
*/
public class KMLCoordinates {
public static final String COORDINATES = "coordinates";
public static final String FORMAT = "%7.5f";
public static final String SEPARATOR = ",";
public static final String NEWLINE = "\n";
public static final String POINT_SEPARATORS = NEWLINE + " ";
public KMLCoordinates(double[] x, double[] y) {
this(x, y, 0.0);
}
public KMLCoordinates(double[] x, double[] y, double z) {
this.x = x;
this.y = y;
if (x.length != y.length)
throw new RuntimeException("Cannot create coordinate system with unbalanced entries");
this.z = new double[x.length];
Arrays.fill(this.z, z);
}
public KMLCoordinates(double[] x, double[] y, double[] z) {
this.x = x;
this.y = y;
this.z = z;
if (x.length != y.length && x.length != z.length)
throw new RuntimeException("Cannot create coordinate system with unbalanced entries");
length = x.length;
}
public void switchXY() {
double[] tempX = x;
x = y;
y = tempX;
}
public Element toXML() {
Element thisElement = new Element(COORDINATES);
StringBuffer bf = new StringBuffer();
bf.append(POINT_SEPARATORS);
for (int i = 0; i < x.length; i++) {
bf.append(String.format(FORMAT, x[i])).append(SEPARATOR);
bf.append(String.format(FORMAT, y[i])).append(SEPARATOR);
bf.append(String.format(FORMAT, z[i])).append(POINT_SEPARATORS);
}
thisElement.addContent(bf.toString());
return thisElement;
}
public static XMLObjectParser COORDINATESPARSER = new AbstractXMLObjectParser() {
public String getParserName() {
return COORDINATES;
}
public Object parseXMLObject(XMLObject xo) throws XMLParseException {
String value = (String) xo.getChild(0);
StringTokenizer st1 = new StringTokenizer(value, POINT_SEPARATORS);
int count = st1.countTokens();
double[] x = new double[count];
double[] y = new double[count];
double[] z = new double[count];
for (int i = 0; i < count; i++) {
String line = st1.nextToken();
StringTokenizer st2 = new StringTokenizer(line, SEPARATOR);
if (st2.countTokens() != 3)
throw new XMLParseException("All KML coordinates must contain (X,Y,Z) values. Three dimensions not found in element '" + line + "'");
x[i] = Double.valueOf(st2.nextToken());
y[i] = Double.valueOf(st2.nextToken());
z[i] = Double.valueOf(st2.nextToken());
}
return new KMLCoordinates(x, y, z);
}
//************************************************************************
// AbstractXMLObjectParser implementation
//************************************************************************
public String getParserDescription() {
return "This element represents a set of (X,Y,Z) coordinates in KML format";
}
public Class getReturnType() {
return KMLCoordinates.class;
}
public XMLSyntaxRule[] getSyntaxRules() {
return rules;
}
private XMLSyntaxRule[] rules = new XMLSyntaxRule[]{
// AttributeRule.newDoubleRule(TIME,true),
new ElementRule(String.class)
};
};
public double[] x;
public double[] y;
public double[] z;
public int length;
}