Mercurial > dive4elements > river
view artifacts/src/main/java/org/dive4elements/river/jfree/DoubleBounds.java @ 7514:69138ab4a942
Added tag 3.0.17 for changeset 607246315009
author | Sascha L. Teichmann <teichmann@intevation.de> |
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date | Mon, 04 Nov 2013 11:24:30 +0100 |
parents | af13ceeba52a |
children | ac7cb15e1946 |
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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.jfree; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.axis.LogarithmicAxis; import org.jfree.data.Range; /** * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> */ public class DoubleBounds implements Bounds { protected double lower; protected double upper; /** * Default constructor. <b>A DoubleBounds has always set lower < * upper!</b> */ public DoubleBounds(double lower, double upper) { this.lower = Math.min(lower, upper); this.upper = Math.max(lower, upper); } @Override public Number getLower() { return Double.valueOf(lower); } @Override public Number getUpper() { return Double.valueOf(upper); } @Override public void applyBounds(ValueAxis axis) { axis.setRange(new Range(lower, upper)); } /** * Set extended range to ValueAxis. * @param percent how many percent to extend (in each direction, * thus 10 percent on [0,100] -> [-10,110]. */ @Override public void applyBounds(ValueAxis axis, int percent) { double space = (upper - lower) / 100 * percent; if (axis instanceof LogarithmicAxis) { axis.setRange(new Range(Math.max(lower-space, 0.0001), Math.max(upper+space, 0.0002))); } else { axis.setRange(new Range(lower-space, upper+space)); } } @Override public Bounds combine(Bounds bounds) { if (bounds == null) { return this; } DoubleBounds other = (DoubleBounds) bounds; double otherLower = other.getLower().doubleValue(); double otherUpper = other.getUpper().doubleValue(); return new DoubleBounds( otherLower < lower ? otherLower : lower, otherUpper > upper ? otherUpper : upper); } @Override public String toString() { return "DoubleBounds=[" + lower + " ; " + upper + "]"; } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf8 :