Mercurial > dive4elements > river
comparison artifacts/src/main/java/org/dive4elements/river/jfree/AxisDataset.java @ 7034:557cb3a3d772 generator-refactoring
Combine AxisDataset implementations and remove / simplify handling code.
Tested with longitudinal section and hist. discharges should be
ok.
| author | Andre Heinecke <aheinecke@intevation.de> |
|---|---|
| date | Wed, 18 Sep 2013 10:12:47 +0200 |
| parents | |
| children | 59e477500a50 |
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| 7033:0d91a6598a89 | 7034:557cb3a3d772 |
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| 1 /* Copyright (C) 2013 by Bundesanstalt für Gewässerkunde | |
| 2 * Software engineering by Intevation GmbH | |
| 3 * | |
| 4 * XYDatasethis file is Free Software under the GNU AGPL (>=v3) | |
| 5 * and comes with ABSOLUXYDatasetELY NO WARRANTY! Check out the | |
| 6 * documentation coming with Dive4Elements River for details. | |
| 7 */ | |
| 8 | |
| 9 package org.dive4elements.river.jfree; | |
| 10 | |
| 11 import java.util.List; | |
| 12 import java.util.ArrayList; | |
| 13 import java.lang.Math; | |
| 14 | |
| 15 import org.jfree.data.Range; | |
| 16 import org.jfree.data.RangeInfo; | |
| 17 import org.jfree.data.xy.XYDataset; | |
| 18 import org.jfree.data.xy.XYSeries; | |
| 19 import org.jfree.data.xy.XYSeriesCollection; | |
| 20 import org.jfree.data.time.TimeSeriesCollection; | |
| 21 | |
| 22 import org.apache.log4j.Logger; | |
| 23 | |
| 24 /** | |
| 25 * Axis datasets. | |
| 26 */ | |
| 27 public class AxisDataset | |
| 28 { | |
| 29 private static Logger logger = Logger.getLogger(AxisDataset.class); | |
| 30 | |
| 31 /** Symbolic integer, but also coding the priority (0 goes first). */ | |
| 32 protected int axisSymbol; | |
| 33 | |
| 34 /** List of assigned datasets (in order). */ | |
| 35 protected List<XYDataset> datasets; | |
| 36 | |
| 37 /** Range to use to include all given datasets. */ | |
| 38 protected Range range; | |
| 39 | |
| 40 /** Index of axis in plot. */ | |
| 41 protected int plotAxisIndex; | |
| 42 | |
| 43 protected boolean rangeDirty; | |
| 44 | |
| 45 /** Create AxisDataset. */ | |
| 46 public AxisDataset(int symb) { | |
| 47 axisSymbol = symb; | |
| 48 datasets = new ArrayList<XYDataset>(); | |
| 49 } | |
| 50 | |
| 51 /** Add a dataset to internal list for this axis. */ | |
| 52 public void addDataset(XYDataset dataset) { | |
| 53 datasets.add(dataset); | |
| 54 rangeDirty = true; | |
| 55 } | |
| 56 | |
| 57 /** Add a dataset. */ | |
| 58 public void addDataset(XYSeries series) { | |
| 59 addDataset(new XYSeriesCollection(series)); | |
| 60 } | |
| 61 | |
| 62 public void setRange(Range val) { | |
| 63 range = val; | |
| 64 } | |
| 65 | |
| 66 /** Get Range for the range axis of this dataset. */ | |
| 67 public Range getRange() { | |
| 68 if (range != null && !rangeDirty) { | |
| 69 return range; | |
| 70 } | |
| 71 /* Calculate the min / max of all series */ | |
| 72 for (XYDataset dataset: datasets) { | |
| 73 Range newRange = null; | |
| 74 if (dataset instanceof StyledAreaSeriesCollection) { | |
| 75 /* We do not include areas in the range calculation because | |
| 76 * they are used with very large / small values to draw areas | |
| 77 * with axis boundaries */ | |
| 78 continue; | |
| 79 } else if (dataset instanceof RangeInfo) { | |
| 80 /* The usual case for most series */ | |
| 81 newRange = ((RangeInfo) dataset).getRangeBounds(false); | |
| 82 } else if (dataset instanceof TimeSeriesCollection) { | |
| 83 /* Lalala <3 Jfreechart's class hirarchy */ | |
| 84 newRange = ((TimeSeriesCollection) dataset).getRangeBounds(false); | |
| 85 } | |
| 86 | |
| 87 /* Now we only expand as we also only add new data */ | |
| 88 if (range == null) { | |
| 89 range = newRange; | |
| 90 } else { | |
| 91 range = Range.combineIgnoringNaN(range, newRange); | |
| 92 } | |
| 93 } | |
| 94 rangeDirty = false; | |
| 95 return range; | |
| 96 } | |
| 97 | |
| 98 /** Get Array of Datasets. */ | |
| 99 public XYDataset[] getDatasets() { | |
| 100 return datasets.toArray(new XYDataset[datasets.size()]); | |
| 101 } | |
| 102 | |
| 103 /** True if to be rendered as area. */ | |
| 104 public boolean isArea(XYDataset series) { | |
| 105 return (series instanceof StyledAreaSeriesCollection); | |
| 106 } | |
| 107 | |
| 108 /** True if no datasets given. */ | |
| 109 public boolean isEmpty() { | |
| 110 return datasets.isEmpty(); | |
| 111 } | |
| 112 | |
| 113 /** Set the 'real' axis index that this axis is mapped to. */ | |
| 114 public void setPlotAxisIndex(int axisIndex) { | |
| 115 plotAxisIndex = axisIndex; | |
| 116 } | |
| 117 | |
| 118 /** Get the 'real' axis index that this axis is mapped to. */ | |
| 119 public int getPlotAxisIndex() { | |
| 120 return plotAxisIndex; | |
| 121 } | |
| 122 | |
| 123 /** Add a Dataset that describes an area. */ | |
| 124 public void addArea(StyledAreaSeriesCollection series) { | |
| 125 addDataset(series); | |
| 126 } | |
| 127 | |
| 128 } |