org.mycore.common.MCRGeoUtilities Maven / Gradle / Ivy
/*
* This file is part of *** M y C o R e ***
* See http://www.mycore.de/ for details.
*
* MyCoRe is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* MyCoRe 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with MyCoRe. If not, see .
*/
package org.mycore.common;
import java.text.MessageFormat;
import java.util.Locale;
/**
* @author shermann
*
*/
public class MCRGeoUtilities {
/**
* Converts coordinates to decimal degree (as used by google maps).
*
*/
public static double toDecimalDegrees(int degree, int minutes, double seconds) {
return (((seconds / 60) + minutes) / 60) + degree;
}
/**
* Converts coordinates in pica format to decimal degree (as used by google maps).
*
* @return the decimal degree representation of the coordinates
*/
public static double toDecimalDegrees(String picaValue) {
if (picaValue == null || picaValue.length() == 0 || (!isValid(picaValue))) {
return 0d;
}
String[] strings = picaValue.split(" ");
if (strings.length < 3) {
return 0d;
}
int degree = Integer.valueOf(strings[1]);
int minutes = Integer.valueOf(strings[2]);
double seconds = 0d;
if (strings.length >= 4) {
seconds = Double.valueOf(strings[3]);
}
int factor = "W".equals(strings[0]) || "S".equals(strings[0]) ? -1 : 1;
return ((((seconds / 60) + minutes) / 60) + degree) * factor;
}
/**
* Converts decimal degree to ordinary coordinates.
*
*/
public static String toDegreeMinuteSecond(double inDecimalDegree) {
int degree = (int) inDecimalDegree;
int minutes = (int) ((inDecimalDegree - degree) * 60);
double seconds = ((inDecimalDegree - degree) * 60 - minutes) * 60;
return new MessageFormat("{0}° {1}'' {2}", Locale.ROOT).format(
new Object[] { degree, minutes, Math.round(seconds * 100d / 100d) });
}
/**
* @param picaValue the value as stored in opac/pica
* @return a human readable form like 38° 22′ S
*
* @see #toDegreeMinuteSecond(double)
*/
public static String toDegreeMinuteSecond(String picaValue) {
if (picaValue == null || picaValue.length() == 0 || (!isValid(picaValue))) {
return null;
}
String[] strings = picaValue.split(" ");
if (strings.length < 3) {
return null;
}
double seconds = 0d;
if (strings.length >= 4) {
seconds = Double.valueOf(strings[3]);
}
return new MessageFormat("{0}° {1}'' {2} {3}", Locale.ROOT).format(
new Object[] { Integer.valueOf(strings[1]), Integer.valueOf(strings[2]), Math.round(seconds * 100d / 100d),
strings[0] });
}
/**
* @param picaValue
* @return
*/
private static boolean isValid(String picaValue) {
String regex = "[EWSN]{1}\\s[0-9]{3}\\s[0-9]{2}(\\s[0-9]*)*";
return picaValue.matches(regex);
}
}