Mercurial > dive4elements > gnv-client
changeset 629:d08b9ba148c5
Implemented logic to adjust number of bins corresponding to user input.
gnv-artifacts/trunk@706 c6561f87-3c4e-4783-a992-168aeb5c3f6f
| author | Ingo Weinzierl <ingo.weinzierl@intevation.de> |
|---|---|
| date | Wed, 24 Feb 2010 14:30:52 +0000 |
| parents | bfe33e658576 |
| children | a72ecacccc91 |
| files | gnv-artifacts/ChangeLog gnv-artifacts/src/main/java/de/intevation/gnv/chart/DefaultHistogram.java gnv-artifacts/src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesOutputState.java |
| diffstat | 3 files changed, 152 insertions(+), 3 deletions(-) [+] |
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--- a/gnv-artifacts/ChangeLog Tue Feb 23 15:50:15 2010 +0000 +++ b/gnv-artifacts/ChangeLog Wed Feb 24 14:30:52 2010 +0000 @@ -1,3 +1,24 @@ +2010-02-24 Ingo Weinzierl <ingo.weinzierl@intevation.de> + + * src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesOutputState.java: + Store request parameter in a map and put that map into other + classes/methods instead of putting each request parameter into an own + variable. + + * src/main/java/de/intevation/gnv/chart/DefaultHistogram.java: Implemented + logic to adjust number of bins in histogram charts. The user is able to + choose between the number of bins or the size of a single bin. + +2010-02-23 Ingo Weinzierl <ingo.weinzierl@intevation.de> + + * contrib/palette2polygonVM.xsl: New. XSLT transformation to transform a + palette file into a style definition template used for mapfile creation. + Usage: + + $ xsltproc contrib/palette2polygonVM.xsl \ + doc/conf/palette/water-temperature.xml \ + > water-temperature.vm + 2010-02-23 Ingo Weinzierl <ingo.weinzierl@intevation.de> * src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesOutputState.java:
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/chart/DefaultHistogram.java Tue Feb 23 15:50:15 2010 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/chart/DefaultHistogram.java Wed Feb 24 14:30:52 2010 +0000 @@ -1,5 +1,10 @@ package de.intevation.gnv.chart; +import java.text.NumberFormat; +import java.text.ParseException; +import java.util.Locale; +import java.util.Map; + import org.apache.log4j.Logger; import org.jfree.chart.ChartTheme; @@ -16,14 +21,23 @@ { // TODO take a better default value public static final int DEFAULT_BINS = 15; + public static final int MAXIMAL_BINS = 20; + public static final String REQUEST_KEY_BIN_COUNT = "bincount"; + public static final String REQUEST_KEY_BIN_WIDTH = "binwidth"; + public static final String REQUEST_KEY_CHART_WIDTH = "width"; + public static final String REQUEST_KEY_LOCALE = "locale"; + public static final String REQUEST_KEY_BIN_CHOICE = "bintype"; private static Logger logger = Logger.getLogger(DefaultHistogram.class); + protected Map requestParameter; + public DefaultHistogram( - ChartLabels labels, Object[] data, ChartTheme theme + ChartLabels labels, Object[] data, ChartTheme theme, Map requestParameter ) { super(labels, data, theme); + this.requestParameter = requestParameter; } @@ -33,14 +47,30 @@ // prepare data and create add them to histogram dataset String name = (String) data[0]; double[] values = toDouble((Double[]) data[1]); + int bins = getBinCount(values); HistogramDataset dataset = new HistogramDataset(); - dataset.addSeries(name, values, DEFAULT_BINS); + dataset.addSeries(name, values, bins); plot.setDataset(0, dataset); } + protected double[] getMinMax(double[] values) { + double[] minmax = new double[2]; + minmax[0] = Double.MAX_VALUE; + minmax[1] = Double.MIN_VALUE; + + int length = values.length; + for (int i = 0; i < length; i++) { + minmax[0] = values[i] < minmax[0] ? values[i] : minmax[0]; + minmax[1] = values[i] > minmax[1] ? values[i] : minmax[1]; + } + + return minmax; + } + + protected double[] toDouble(Double[] array) { int length = array.length; double[] values = new double[length]; @@ -51,5 +81,88 @@ return values; } + + + protected int getBinCount(double[] values) { + String param = (String) requestParameter.get(REQUEST_KEY_BIN_CHOICE); + + if (param != null && param.equalsIgnoreCase(REQUEST_KEY_BIN_WIDTH)) { + return getBinCountByWidth(values); + } + else { + return getBinCountByNumber(); + } + } + + + protected int getBinCountByNumber() { + int bins = -1; + String param = (String) requestParameter.get(REQUEST_KEY_BIN_COUNT); + + try { + bins = Integer.parseInt(param); + bins = bins <= 0 ? DEFAULT_BINS : bins; + bins = bins > MAXIMAL_BINS ? MAXIMAL_BINS : bins; + + return bins; + } + catch (NumberFormatException nfe) { + logger.warn("Invalid number of bins for histogram chart: " + param); + logger.warn("Return default bins: " + DEFAULT_BINS); + + return DEFAULT_BINS; + } + } + + + protected int getBinCountByWidth(double[] values) { + int bins = -1; + String param = (String) requestParameter.get(REQUEST_KEY_BIN_WIDTH); + Locale locale = (Locale) requestParameter.get(REQUEST_KEY_LOCALE); + NumberFormat format = NumberFormat.getInstance(locale); + + try { + double[] minmax = getMinMax(values); + double totalWidth = minmax[1] - minmax[0]; + Number number = format.parse(param); + double binWidth = -1d; + + if (number instanceof Double) { + binWidth = ((Double) number).doubleValue(); + } + else if (number instanceof Long) { + binWidth = ((Long) number).doubleValue(); + } + else if (number instanceof Integer) { + binWidth = ((Integer) number).doubleValue(); + } + else { + logger.warn("Invalid bin width for histogram chart: " + param); + logger.warn("Return default bins: " + DEFAULT_BINS); + + return DEFAULT_BINS; + } + + double tmpBins = totalWidth / binWidth; + + bins = (int) Math.round(tmpBins); + bins = bins <= 0 ? DEFAULT_BINS : bins; + bins = bins > MAXIMAL_BINS ? MAXIMAL_BINS : bins; + + return bins; + } + catch (ParseException pe) { + logger.warn("Invalid bin width for histogram chart: " + param); + logger.warn("Return default bins: " + DEFAULT_BINS); + + return DEFAULT_BINS; + } + catch (NumberFormatException nfe) { + logger.warn("Invalid bin width for histogram chart: " + param); + logger.warn("Return default bins: " + DEFAULT_BINS); + + return DEFAULT_BINS; + } + } } // vim:set ts=4 sw=4 si et sta sts=4 fenc=utf-8 :
--- a/gnv-artifacts/src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesOutputState.java Tue Feb 23 15:50:15 2010 +0000 +++ b/gnv-artifacts/src/main/java/de/intevation/gnv/state/timeseries/TimeSeriesOutputState.java Wed Feb 24 14:30:52 2010 +0000 @@ -67,9 +67,11 @@ import java.util.ArrayList; import java.util.Collection; +import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Locale; +import java.util.Map; import java.util.Vector; import org.apache.log4j.Logger; @@ -224,6 +226,10 @@ int chartWidth = 600; int chartHeight = 400; boolean sVisible = false; + int binCount = 0; + int binWidth = 0; + + Map requestParameter = new HashMap(); // lines are always visible. if lines should be configurable we need a // parameter in the user interface @@ -235,6 +241,8 @@ while (it.hasNext()) { InputData ip = it.next(); String optionName = ip.getName().trim(); + log.debug("FOUND [" + optionName + "] with value {"+ ip.getValue()+"}"); + requestParameter.put(optionName, ip.getValue()); if (optionName.equals("width")) { chartWidth = Integer.parseInt(ip.getValue()); @@ -305,6 +313,13 @@ Object[][] data = HistogramHelper.prepareHistogramData( results, parameters, measurements, dates); + PreferredLocale[] locales = callMeta.getLanguages(); + Locale[] serverLocales = + RessourceFactory.getInstance().getLocales(); + Locale locale = + callMeta.getPreferredLocale(serverLocales); + requestParameter.put("locale", locale); + int size = data.length; Chart[] histograms = new Chart[size]; @@ -315,7 +330,7 @@ ChartTheme theme = createStyle(callContext); histograms[i] = new DefaultHistogram( - labels, data[i], theme); + labels, data[i], theme, requestParameter); } ChartExportHelper.exportHistograms(