Java String Length Get LengthConversionFactor(String OldUnits)

Description

Length Conversion Factor

License

Open Source License

Declaration

public static float LengthConversionFactor(String OldUnits)

Method Source Code

//package com.java2s;
/*/*  w ww.j  a  v  a 2s  .c o m*/
 * File:  NxNodeUtils.java 
 *             
 * Copyright (C) 2001, Ruth Mikkelson
 *
 * This program 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 2
 * of the License, or (at your option) any later version.
 *
 * This program 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 this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
 *
 * Contact : Ruth Mikkelson <mikkelsonr@uwstout.edu>
 *           Department of Mathematics, Statistics and Computer Science
 *           University of Wisconsin-Stout
 *           Menomonie, WI 54751, USA
 *
 * This work was supported by the Intense Pulsed Neutron Source Division
 * of Argonne National Laboratory, Argonne, IL 60439-4845, USA.
 *
 * For further information, see <http://www.pns.anl.gov/ISAW/>
 *
 * Modified:
 *
 * $Log$
 * Revision 1.25  2007/08/26 23:55:44  rmikk
 * Changed package name for the NeXus package
 *
 * Revision 1.24  2005/02/03 08:18:07  kramer
 *
 * Fixed an error in the getISO8601String(Date date) method, the current date
 * was used instead of 'date'.
 *
 * Commented out the section that writes fractions of a second because
 * parseISO8601(String dateString) can't read a ISO8601 string written to a
 * fraction of a second.
 *
 * Revision 1.23  2005/02/03 06:36:50  kramer
 *
 * Added the parseISO8601(String dateString) and getISO8601String(Date date)
 * methods which get a Date from an String written in ISO8601 format and a
 * String written in ISO8601 format from a Date.
 *
 * Revision 1.22  2004/12/23 18:47:05  rmikk
 * Fixed indentation and added lines between code.
 *
 * Revision 1.21  2004/05/14 15:03:27  rmikk
 * Removed unused variables
 *
 * Revision 1.20  2004/03/15 03:36:01  dennis
 * Moved view components, math and utils to new source tree
 * gov.anl.ipns.*
 *
 * Revision 1.19  2004/02/16 02:15:55  bouzekc
 * Removed unused import statements.
 *
 * Revision 1.18  2003/10/19 20:01:57  rmikk
 * Added some documentation
 * Fixed new units for time to be us
 * Fixed error in calculating factor with a numeric prefix
 *
 * Revision 1.17  2003/10/15 03:05:44  bouzekc
 * Fixed javadoc errors.
 *
 * Revision 1.16  2003/09/14 16:35:34  rmikk
 * -incorporated leading factors like 100us for times and
 * lengths
 * -Finished incorporating the time units up to hours.
 *
 * Revision 1.15  2003/06/18 20:32:54  pfpeterson
 * Removed deprecated method.
 *
 * Revision 1.14  2003/06/18 19:38:55  pfpeterson
 * ShowW() now calls method in StringUtil.
 *
 * Revision 1.13  2002/11/27 23:28:17  pfpeterson
 * standardized header
 *
 * Revision 1.12  2002/11/20 16:14:50  pfpeterson
 * reformating
 *
 * Revision 1.11  2002/06/19 16:27:04  rmikk
 * Eliminated commented out code.
 * Eliminated reference to deprecated Date.getYear()
 * Fixed code alignment and spacing
 *
 * Revision 1.10  2002/06/19 15:55:22  rmikk
 * Fixed the order of Date formats so that the seconds, when
 * there, is found
 *
 * Revision 1.9  2002/04/01 20:45:41  rmikk
 * Fixed Date Format exception report in jdk1.4
 * Added some support for the Nexus NXChar type
 *
 * Revision 1.8  2002/02/26 15:46:41  rmikk
 * Fixed the utility Showw routine
 * Added a utility routine to getConversion factors
 *
 */

public class Main {
    public static float LengthConversionFactor(String OldUnits) { //base m
        int n = getNumericStart(OldUnits);
        float factor = 1;

        if (n > 0)
            try {
                factor = (new Float(OldUnits.substring(0, n))).floatValue();

            } catch (Exception ss) {
                factor = 1;
            }
        OldUnits = OldUnits.substring(n);
        if ("m;meter;met;".indexOf(OldUnits + ";") >= 0)
            return factor * 1;

        if ("cm;centim;centimeter;cmeter;cmet;100mm;100millim;100millimeter;"
                .indexOf(OldUnits + ";") >= 0)
            return factor * .01f;

        if ("mm;millim;millimeter;100um;100microm;".indexOf(OldUnits + ";") >= 0)
            return factor * .001f;

        if ("um;umet;umeter;umeters;".indexOf(OldUnits) >= 0)
            return factor * .000001f;

        if ("in;inch;".indexOf(OldUnits + ";") >= 0)
            return factor * (float) (1.0 / 254.0);

        if ("ft;foot;feet;".indexOf(OldUnits + ";") >= 0)
            return factor * (float) (12.0 / 254.0);

        return factor * 1.0f;

    }

    private static int getNumericStart(String S) {

        boolean decimalDone = false, expOn = false, leadSign = true;

        for (int i = 0; i < S.length(); i++) {
            char c = S.charAt(i);

            if (Character.isDigit(c)) {
                leadSign = false;
            } else if ((c == '.') && !decimalDone && !expOn) {
                leadSign = false;
                decimalDone = true;

            } else if (("+-".indexOf(c) >= 0) && leadSign)
                leadSign = false;

            else if (("Ee".indexOf(c) >= 0) && !expOn) {
                expOn = true;

                leadSign = true;
                decimalDone = true;

            } else
                return i;

        }
        return S.length();
    }
}

Java String Length Get LengthConversionFactor(String OldUnits)

Description

License

Declaration

Method Source Code

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