Mercurial > dive4elements > gnv-client

annotate gnv-artifacts/src/main/java/de/intevation/gnv/chart/DefaultHistogram.java @ 1089:1dc08501a1be

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Implemented necessary classes (artifact, output state) used for a new product 'Achsenparalleler Vertikalschnitt. gnv-artifacts/trunk@1203 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author Ingo Weinzierl <ingo.weinzierl@intevation.de>
date Sat, 12 Jun 2010 12:59:48 +0000
parents bb2679624c6a
children 86ca3c10523f
rev   line source
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
1 package de.intevation.gnv.chart;
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
2
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
3 import java.util.Map;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
4
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
5 import org.apache.log4j.Logger;
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
6
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
7 import org.jfree.chart.ChartTheme;
623
65f09139e9b3 Fixed file handle leak when writing meta data.
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 617
diff changeset
8
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
9 import org.jfree.chart.plot.XYPlot;
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
10
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
11 /**
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
12 * Default implementation of {@link de.intevation.gnv.chart.AbstractHistogram}.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
13 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
14 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a>
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
15 */
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
16 public class DefaultHistogram
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
17 extends AbstractHistogram
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
18 {
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
19 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
20 * Default bin count.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
21 * TODO find a better default value
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
22 */
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
23 public static final int DEFAULT_BINS = 15;
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
24
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
25 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
26 * Constant field for limitating the number of bin in a single histogram.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
27 */
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
28 public static final int MAXIMAL_BINS = 20;
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
29
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
30 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
31 * Default key to retrieve the number of bins from {@link
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
32 * #requestParameter}.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
33 */
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
34 public static final String REQUEST_KEY_BIN_COUNT = "bincount";
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
35
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
36 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
37 * Default key to retrieve the width of a single bin from {@link
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
38 * #requestParameter}.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
39 */
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
40 public static final String REQUEST_KEY_BIN_WIDTH = "binwidth";
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
41
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
42 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
43 * Default key to retrieve the chart width from {@link #requestParameter}.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
44 */
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
45 public static final String REQUEST_KEY_CHART_WIDTH = "width";
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
46
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
47 /**
778
9a828e5a2390 Removed trailing whitespace
Sascha L. Teichmann <sascha.teichmann@intevation.de>
parents: 767
diff changeset
48 * Default key to retrieve the object from {@link #requestParameter}. It
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
49 * defines which value this chart has to be used for bin calculation. You
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
50 * can either adjust the number of bins or the width of a single bin.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
51 */
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
52 public static final String REQUEST_KEY_BIN_CHOICE = "bintype";
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
53
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
54 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
55 * Logger used for logging with log4j.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
56 */
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
57 private static Logger logger = Logger.getLogger(DefaultHistogram.class);
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
58
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
59 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
60 * Object storing some further parameter used for chart settings.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
61 */
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
62 protected Map requestParameter;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
63
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
64 protected double[] minmax = null;
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
65
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
66
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
67 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
68 * Constructor to create DefaultHistogram objects.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
69 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
70 * @param labels Labels to decorate this chart.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
71 * @param data Raw data to be displayed in histogram.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
72 * @param theme Theme used to adjust the chart look.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
73 * @param requestParameter Object which serves some further settings.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
74 */
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
75 public DefaultHistogram(
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
76 ChartLabels labels, Object[] data, ChartTheme theme, Map requestParameter
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
77 ) {
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
78 super(labels, data, theme);
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
79 this.requestParameter = requestParameter;
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
80 }
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
81
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
82
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
83 @Override
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
84 protected void applyDatasets() {
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
85 XYPlot plot = (XYPlot) chart.getPlot();
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
86
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
87 // prepare data and create add them to histogram dataset
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
88 String name = (String) data[0];
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
89 double[] values = toDouble((Double[]) data[1]);
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
90
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
91 double binWidth = getBinWidth(values);
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
92 int binCount = getBinCount();
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
93
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
94 AdvancedHistogramDataset dataset =
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
95 new AdvancedHistogramDataset(binCount, binWidth);
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
96 dataset.addSeries(name, values);
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
97
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
98 plot.setDataset(0, dataset);
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
99 }
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
100
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
101
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
102 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
103 * Method which scans the hole bunch of values and returns an array with
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
104 * contains min and max value. Min value is stored at position 0, max value
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
105 * is stored at position 1 in that array.
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
106 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
107 * @param values Array which contains all values
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
108 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
109 * @return Array which contains min and max value
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
110 */
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
111 protected double[] getMinMax(double[] values) {
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
112 if (minmax != null)
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
113 return minmax;
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
114
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
115 double[] minmax = new double[2];
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
116 minmax[0] = Double.MAX_VALUE;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
117 minmax[1] = Double.MIN_VALUE;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
118
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
119 int length = values.length;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
120 for (int i = 0; i < length; i++) {
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
121 minmax[0] = values[i] < minmax[0] ? values[i] : minmax[0];
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
122 minmax[1] = values[i] > minmax[1] ? values[i] : minmax[1];
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
123 }
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
124
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
125 this.minmax = minmax;
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
126
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
127 return minmax;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
128 }
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
129
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
130
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
131 /**
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
132 * Turn a Double[] into a double[].
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
133 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
134 * @param array Doube[]
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
135 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
136 * @return double[]
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
137 */
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
138 protected double[] toDouble(Double[] array) {
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
139 int length = array.length;
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
140 double[] values = new double[length];
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
141
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
142 for(int i = 0; i < length; i++) {
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
143 values[i] = array[i].doubleValue();
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
144 }
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
145
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
146 return values;
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
147 }
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
148
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
149
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
150 /**
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
151 * Method to retrieve the number of bins.
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
152 *
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
153 * @return the number of bins that is specified in <i>requestParameter</i>
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
154 * or -1 if the number of bins is not the dominant value to calculate the
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
155 * width of a single bin.
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
156 */
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
157 protected int getBinCount() {
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
158 // Return -1 to trigger a calculation of the number of bins in
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
159 // AdvancedHistogramDataset if the user chose the bin width as dominant
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
160 // value.
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
161 String choice = (String) requestParameter.get(REQUEST_KEY_BIN_CHOICE);
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
162 if (choice != null && choice.equalsIgnoreCase(REQUEST_KEY_BIN_WIDTH)) {
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
163 return -1;
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
164 }
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
165
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
166 int bins = -1;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
167 String param = (String) requestParameter.get(REQUEST_KEY_BIN_COUNT);
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
168
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
169 try {
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
170 bins = Integer.parseInt(param);
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
171 bins = bins <= 0 ? DEFAULT_BINS : bins;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
172 bins = bins > MAXIMAL_BINS ? MAXIMAL_BINS : bins;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
173
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
174 return bins;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
175 }
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
176 catch (NumberFormatException nfe) {
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
177 logger.warn("Invalid number of bins for histogram chart: " + param);
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
178 logger.warn("Return default bins: " + DEFAULT_BINS);
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
179
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
180 return DEFAULT_BINS;
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
181 }
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
182 }
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
183
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
184
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
185 /**
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
186 * Serves width of a single bin.
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
187 *
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
188 * @param values All values in this histogram
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
189 *
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
190 * @return The bin width that is given in <i>requestParameter</i> or -1 if
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
191 * the bin width is not the dominant value for calculating the number of
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
192 * bins in the histogram.
767
79401c871da4 Added and repaired javadoc in de.intevation.gnv.chart package.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 629
diff changeset
193 */
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
194 protected double getBinWidth(double[] values) {
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
195 // Return -1 to trigger a calculation of the bin width in
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
196 // AdvancedHistogramDataset if the user chose the number of bins as
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
197 // dominant value.
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
198 String choice = (String) requestParameter.get(REQUEST_KEY_BIN_CHOICE);
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
199 if (choice == null || !choice.equalsIgnoreCase(REQUEST_KEY_BIN_WIDTH)) {
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
200 return -1;
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
201 }
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
202
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
203 int bins = -1;
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
204 String param = (String) requestParameter.get(REQUEST_KEY_BIN_WIDTH);
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
205
1054
8430269ec73b Removed the parsing for double/integer values specifying the bin width or the number of bins in DefaultHistogram, because these inserted values are no longer i18n strings (issue289).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 815
diff changeset
206 double[] minmax = getMinMax(values);
8430269ec73b Removed the parsing for double/integer values specifying the bin width or the number of bins in DefaultHistogram, because these inserted values are no longer i18n strings (issue289).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 815
diff changeset
207 double totalWidth = minmax[1] - minmax[0];
8430269ec73b Removed the parsing for double/integer values specifying the bin width or the number of bins in DefaultHistogram, because these inserted values are no longer i18n strings (issue289).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 815
diff changeset
208 double binWidth = Double.parseDouble(param);
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
209
1054
8430269ec73b Removed the parsing for double/integer values specifying the bin width or the number of bins in DefaultHistogram, because these inserted values are no longer i18n strings (issue289).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 815
diff changeset
210 double tmpBins = totalWidth / binWidth;
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
211
1054
8430269ec73b Removed the parsing for double/integer values specifying the bin width or the number of bins in DefaultHistogram, because these inserted values are no longer i18n strings (issue289).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 815
diff changeset
212 bins = (int) Math.round(tmpBins);
8430269ec73b Removed the parsing for double/integer values specifying the bin width or the number of bins in DefaultHistogram, because these inserted values are no longer i18n strings (issue289).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 815
diff changeset
213 bins = bins <= 0 ? DEFAULT_BINS : bins;
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
214
1055
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
215 // the calculated number of bins with the given width exceed the maximum
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
216 // number of bins.
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
217 if (bins > MAXIMAL_BINS) {
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
218 return totalWidth / (MAXIMAL_BINS);
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
219 }
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
220
bb2679624c6a Implemented a new histogram dataset that takes the width of a single bin as well as the number of bins for the histogram (issue288).
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 1054
diff changeset
221 return binWidth;
629
d08b9ba148c5 Implemented logic to adjust number of bins corresponding to user input.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents: 623
diff changeset
222 }
617
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
223 }
3d13fa281a7e Added new ouput mode: histogram.
Ingo Weinzierl <ingo.weinzierl@intevation.de>
parents:
diff changeset
224 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
http://dive4elements.wald.intevation.org