Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/artifacts/sinfo/flowdepth/FlowDepthChartExtender.java @ 8893:ffebc94cf679
Flow-depth-axis and tkh-axis are now synchronized at 0. Show baseline for charts with tkhAxis
| author | gernotbelger |
|---|---|
| date | Thu, 15 Feb 2018 13:47:19 +0100 |
| parents | |
| children | 8596f95673b1 |
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| 8892:87a242425467 | 8893:ffebc94cf679 |
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| 1 /** Copyright (C) 2017 by Bundesanstalt für Gewässerkunde | |
| 2 * Software engineering by | |
| 3 * Björnsen Beratende Ingenieure GmbH | |
| 4 * Dr. Schumacher Ingenieurbüro für Wasser und Umwelt | |
| 5 * | |
| 6 * This file is Free Software under the GNU AGPL (>=v3) | |
| 7 * and comes with ABSOLUTELY NO WARRANTY! Check out the | |
| 8 * documentation coming with Dive4Elements River for details. | |
| 9 */ | |
| 10 package org.dive4elements.river.artifacts.sinfo.flowdepth; | |
| 11 | |
| 12 import java.awt.BasicStroke; | |
| 13 import java.awt.Stroke; | |
| 14 | |
| 15 import org.dive4elements.river.exports.ChartExtender; | |
| 16 import org.dive4elements.river.exports.DiagramGenerator; | |
| 17 import org.jfree.chart.axis.ValueAxis; | |
| 18 import org.jfree.chart.plot.XYPlot; | |
| 19 | |
| 20 /** | |
| 21 * @author Gernot Belger | |
| 22 */ | |
| 23 public class FlowDepthChartExtender implements ChartExtender { | |
| 24 /** | |
| 25 * Synchronizes the location of '0' on the flow-depth-axis with the tkh-axis, by extending the lower bound of the | |
| 26 * flow-depth-axis. | |
| 27 */ | |
| 28 @Override | |
| 29 public void afterAutoZoom(final DiagramGenerator generator) { | |
| 30 final ValueAxis axis1 = generator.getAxis("flowdepthAxis"); | |
| 31 final ValueAxis axis2 = generator.getAxis("tkhAxis"); | |
| 32 if (axis1 == null || axis2 == null) | |
| 33 return; | |
| 34 | |
| 35 final double axis2lb = axis2.getLowerBound(); | |
| 36 final double axis1ub = axis1.getUpperBound(); | |
| 37 final double axis2ub = axis2.getUpperBound(); | |
| 38 | |
| 39 final double ratio = axis2lb / (axis2ub - axis2lb); | |
| 40 final double axis1lbNew = axis1ub / (1 / ratio + 1); | |
| 41 | |
| 42 axis1.setLowerBound(axis1lbNew); | |
| 43 } | |
| 44 | |
| 45 @Override | |
| 46 public void afterGenerateChart(final DiagramGenerator generator, final XYPlot plot) { | |
| 47 | |
| 48 final ValueAxis tkhAxis = generator.getAxis("tkhAxis"); | |
| 49 if (tkhAxis != null) { | |
| 50 /* show baseline if tkhAxis is present */ | |
| 51 | |
| 52 // TODO: it would probably better to configure this via the ChartSettings, but currently no chart settings are loaded, | |
| 53 // so it is unclear if that feature still works. | |
| 54 final Stroke baselineStroke = new BasicStroke(2, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER); | |
| 55 plot.setRangeZeroBaselineStroke(baselineStroke); | |
| 56 plot.setRangeZeroBaselineVisible(true); | |
| 57 } | |
| 58 } | |
| 59 } |