Mercurial > dive4elements > gnv-client
comparison gnv-artifacts/src/main/java/de/intevation/gnv/chart/TimeSeriesVectorChart.java @ 1040:70653c29fc1d
Finished vector support for timeseriespoints (Issue27).
gnv-artifacts/trunk@1112 c6561f87-3c4e-4783-a992-168aeb5c3f6f
author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
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date | Wed, 19 May 2010 14:05:33 +0000 |
parents | |
children | f953c9a559d8 |
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1039:3be83ac4cfde | 1040:70653c29fc1d |
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1 package de.intevation.gnv.chart; | |
2 | |
3 import de.intevation.gnv.geobackend.base.Result; | |
4 import de.intevation.gnv.geobackend.base.ResultDescriptor; | |
5 | |
6 import java.util.Collection; | |
7 import java.util.Date; | |
8 import java.util.Iterator; | |
9 import java.util.Locale; | |
10 | |
11 import org.apache.log4j.Logger; | |
12 | |
13 import org.jfree.chart.ChartTheme; | |
14 import org.jfree.chart.plot.XYPlot; | |
15 | |
16 import org.jfree.data.time.Minute; | |
17 import org.jfree.data.time.TimeSeries; | |
18 import org.jfree.data.time.TimeSeriesCollection; | |
19 | |
20 | |
21 /** | |
22 * This class is used to create timeseries charts that contain components of a | |
23 * vector parameter. The domain axis contains multiple date/time objects. | |
24 * | |
25 * @author <a href="mailto:ingo.weinzierl@intevation.de">Ingo Weinzierl</a> | |
26 */ | |
27 public class TimeSeriesVectorChart extends TimeSeriesChart { | |
28 | |
29 private static Logger logger =Logger.getLogger(TimeSeriesVectorChart.class); | |
30 | |
31 public TimeSeriesVectorChart( | |
32 ChartLabels labels, | |
33 ChartTheme theme, | |
34 Collection parameters, | |
35 Collection measurements, | |
36 Collection dates, | |
37 Collection result, | |
38 Collection timeGaps, | |
39 Locale locale, | |
40 boolean linesVisible, | |
41 boolean shapesVisible | |
42 ) { | |
43 super(labels, theme, parameters, measurements, dates, result, | |
44 timeGaps, locale, linesVisible, shapesVisible); | |
45 } | |
46 | |
47 | |
48 @Override | |
49 protected void initData() { | |
50 logger.debug("init data for timeseries vector chart"); | |
51 | |
52 Iterator iter = resultSet.iterator(); | |
53 Result row = null; | |
54 String seriesName = null; | |
55 TimeSeries series = null; | |
56 | |
57 int idx = 0; | |
58 int startPos = 0; | |
59 int endPos = 0; | |
60 Date startDate = null; | |
61 Date endDate = null; | |
62 | |
63 ResultDescriptor rd = null; | |
64 int idxSeries = -1; | |
65 int idxX = -1; | |
66 int idxY = -1; | |
67 | |
68 Result[] results = | |
69 (Result[]) resultSet.toArray(new Result[resultSet.size()]); | |
70 | |
71 while (iter.hasNext()) { | |
72 row = (Result) iter.next(); | |
73 | |
74 if (rd == null) { | |
75 rd = row.getResultDescriptor(); | |
76 idxSeries = rd.getColumnIndex("SERIES"); | |
77 idxX = rd.getColumnIndex("XORDINATE"); | |
78 idxY = rd.getColumnIndex("YORDINATE"); | |
79 } | |
80 | |
81 // add current data to plot and prepare for next one | |
82 if (!row.getString(idxSeries).equals(seriesName)) { | |
83 logger.debug("prepare data/plot for next dataset"); | |
84 | |
85 if(series != null) { | |
86 // add gaps before adding series to chart | |
87 startDate = results[startPos].getDate(idxX); | |
88 endDate = results[endPos-1].getDate(idxX); | |
89 addGaps(results,series,startDate,endDate,startPos,endPos); | |
90 addSeries(series, seriesName, idx); | |
91 | |
92 startPos = endPos + 1; | |
93 } | |
94 | |
95 // prepare variables for next plot | |
96 seriesName = row.getString(idxSeries); | |
97 | |
98 logger.debug("next dataset is '" + seriesName + "'"); | |
99 series = new TimeSeries(seriesName, Minute.class); | |
100 } | |
101 | |
102 addValue(row, series); | |
103 storeMaxRange(ranges, row.getDouble(idxY), seriesName); | |
104 endPos++; | |
105 } | |
106 | |
107 if (startPos < results.length && endPos-1 < results.length) { | |
108 // add the last dataset if existing to plot and prepare its axis | |
109 startDate = results[startPos].getDate(idxX); | |
110 endDate = results[endPos-1].getDate(idxX); | |
111 addGaps(results, series, startDate, endDate, startPos, endPos); | |
112 addSeries(series, seriesName, idx); | |
113 } | |
114 | |
115 addDatasets(); | |
116 } | |
117 | |
118 | |
119 @Override | |
120 protected void addDatasets() { | |
121 XYPlot plot = chart.getXYPlot(); | |
122 int idx = 0; | |
123 | |
124 TimeSeriesCollection tsc = null; | |
125 Iterator iter = datasets.keySet().iterator(); | |
126 | |
127 while (iter.hasNext()) { | |
128 String key = (String) iter.next(); | |
129 tsc = (TimeSeriesCollection)datasets.get(key); | |
130 plot.setDataset(idx, tsc ); | |
131 logger.debug("Added " + key + " parameter to plot."); | |
132 prepareAxis(key, idx); | |
133 adjustRenderer( | |
134 idx++, | |
135 tsc.getSeriesCount(), | |
136 linesVisible, | |
137 shapesVisible | |
138 ); | |
139 } | |
140 } | |
141 } | |
142 // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 : |