view artifacts/src/main/java/org/dive4elements/river/utils/DateAverager.java @ 6332:f5bb53106ae8

Remove createBarriersLayer and createBarriers The generated mapfiles did not work and were just confusing. This looks like historical cruft that was never deleted. The real barrier mapfiles are created in the Floodmap state
author Andre Heinecke <aheinecke@intevation.de>
date Thu, 13 Jun 2013 17:24:56 +0200
parents af13ceeba52a
children
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/* Copyright (C) 2011, 2012, 2013 by Bundesanstalt für Gewässerkunde
 * Software engineering by Intevation GmbH
 *
 * This file is Free Software under the GNU AGPL (>=v3)
 * and comes with ABSOLUTELY NO WARRANTY! Check out the
 * documentation coming with Dive4Elements River for details.
 */

package org.dive4elements.river.utils;

import gnu.trove.TLongArrayList;

import java.util.Date;

public class DateAverager
{
   protected TLongArrayList dates;

    public DateAverager() {
        dates = new TLongArrayList();
    }

    public void add(Date date) {
        dates.add(date.getTime());
    }

    public Date getAverage() {
        int N = dates.size();
        if (N == 0) {
            return null;
        }
        long min = dates.min();
        long sum = 0L;
        for (int i = 0; i < N; ++i) {
            sum += dates.getQuick(i) - min;
        }
        return new Date(min + (long)Math.round(sum/(double)N));
    }

    public void clear() {
        dates.resetQuick();
    }
}
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