/** Replaces the chart's dataset and then checks that the new dataset is OK. */
public void testReplaceDataset() {
// create a dataset...
Number[][] data =
new Integer[][] {
{new Integer(-30), new Integer(-20)},
{new Integer(-10), new Integer(10)},
{new Integer(20), new Integer(30)}
};
CategoryDataset newData = DatasetUtilities.createCategoryDataset("S", "C", data);
LocalListener l = new LocalListener();
this.chart.addChangeListener(l);
CategoryPlot plot = (CategoryPlot) this.chart.getPlot();
plot.setDataset(newData);
assertEquals(true, l.flag);
ValueAxis axis = plot.getRangeAxis();
Range range = axis.getRange();
assertTrue(
"Expecting the lower bound of the range to be around -30: " + range.getLowerBound(),
range.getLowerBound() <= -30);
assertTrue(
"Expecting the upper bound of the range to be around 30: " + range.getUpperBound(),
range.getUpperBound() >= 30);
}
/**
* Return the range of z-values in the specified dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
*/
public Range findZBounds(XYZDataset dataset) {
if (dataset != null) {
return DatasetUtilities.findZBounds(dataset);
} else {
return null;
}
}
/**
* Returns the range of the values in this dataset's domain.
*
* @param includeInterval a flag that determines whether or not the x-interval is taken into
* account.
* @return The range.
*/
public Range getDomainBounds(boolean includeInterval) {
if (includeInterval) {
return this.intervalDelegate.getDomainBounds(includeInterval);
} else {
return DatasetUtilities.iterateDomainBounds(this, includeInterval);
}
}
/**
* Returns the range of values the renderer requires to display all the items from the specified
* dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
*/
@Override
public Range findRangeBounds(XYDataset dataset) {
if (dataset != null) {
return DatasetUtilities.findRangeBounds(dataset, true);
} else {
return null;
}
}
/* (non-Javadoc)
* @see com.feilong.tools.jfreechart.xy.FeiLongBaseXYChartEntity#setChildDefaultNumberAxisAttributes()
*/
protected void setChildDefaultNumberAxisAttributes() {
CategoryDataset categoryDataset = categoryPlot.getDataset();
// 数据轴的数据标签 可以只显示整数标签，需要将AutoTickUnitSelection设false
// numberAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
double fudong = 0.5;
NumberAxis numberAxis = getNumberAxis();
// 设置最大值
numberAxis.setUpperBound(
DatasetUtilities.findMaximumRangeValue(categoryDataset).doubleValue() + fudong);
// 设置最小值
numberAxis.setLowerBound(
DatasetUtilities.findMinimumRangeValue(categoryDataset).doubleValue() - fudong);
// 设置坐标轴的最小值，默认的是0.00000001
// numberAxis.setAutoRangeMinimumSize(1);
// 是否强制在自动选择的数据范围中包含0
numberAxis.setAutoRangeIncludesZero(false);
// 纵轴显示范围
// numberAxis.setRange(85, 100.5);
}
/**
* Create a bar chart with sample data in the range -3 to +3.
*
* @return The chart.
*/
private static JFreeChart createBarChart() {
Number[][] data =
new Integer[][] {
{new Integer(-3), new Integer(-2)},
{new Integer(-1), new Integer(1)},
{new Integer(2), new Integer(3)}
};
CategoryDataset dataset = DatasetUtilities.createCategoryDataset("S", "C", data);
return ChartFactory.createBarChart("Bar Chart", "Domain", "Range", dataset);
}
/**
* Displays a signal (using the JFreeChart package).
*
* @param useChart if set to true, the signal is displaied as a bar chart (this is used for
* histograms).
*/
public void display(boolean useChart) {
JFreeChart chart;
int nbSamples = getNbSamples();
if (useChart) {
String[] categories = new String[nbSamples];
for (int i = 0; i < nbSamples; i++) {
categories[i] = data.getX(i).toString();
}
String[] categoryNames = {"Histogram"};
double[][] categoryData = new double[1][nbSamples];
for (int i = 0; i < nbSamples; i++) {
categoryData[0][i] = data.getY(i).doubleValue();
}
CategoryDataset categoryDataset =
DatasetUtilities.createCategoryDataset(categoryNames, categories, categoryData);
chart =
ChartFactory.createBarChart(
"Histogram", // Title
"Data Value", // X axis label
"Number of Elements", // Y axis label
categoryDataset, // dataset
PlotOrientation.VERTICAL, // orientation
true, // legends
true, // tool tips
true);
} else {
XYDataset xyDataSet = new XYSeriesCollection(this.data);
chart =
ChartFactory.createXYLineChart(
"Example Dataset", // Title
"Abscissa", // X axis label
"Ordinate", // Y axis label
xyDataSet, // dataset
PlotOrientation.VERTICAL, // orientation
true, // legends
true, // tool tips
true); // urls
XYPlot plot = (XYPlot) chart.getPlot();
XYItemRenderer r = plot.getRenderer();
if (r instanceof XYLineAndShapeRenderer) {
XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r;
renderer.setSeriesShapesVisible(0, true);
renderer.setSeriesShapesFilled(0, true);
}
}
ChartFrame frame = new ChartFrame("Frame Title", chart);
frame.setVisible(true);
frame.setSize(512, 512);
}
/**
* Returns the range of values the renderer requires to display all the items from the specified
* dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
*/
public Range findRangeBounds(XYDataset dataset) {
if (dataset != null) {
if (this.renderAsPercentages) {
return new Range(0.0, 1.0);
} else {
return DatasetUtilities.findStackedRangeBounds((TableXYDataset) dataset);
}
} else {
return null;
}
}
/**
* Returns the lower and upper bounds (range) of the x-values in the specified dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
* @see #findRangeBounds(XYDataset)
*/
public Range findDomainBounds(XYDataset dataset) {
if (dataset == null) {
return null;
}
Range r = DatasetUtilities.findDomainBounds(dataset, false);
if (r == null) {
return null;
}
return new Range(
r.getLowerBound() + this.xOffset, r.getUpperBound() + this.blockWidth + this.xOffset);
}
/**
* Returns the range of values the renderer requires to display all the items from the specified
* dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
*/
public Range findRangeBounds(XYDataset dataset) {
if (dataset == null) {
return null;
}
Range r = DatasetUtilities.findRangeBounds(dataset, false);
if (r == null) {
return null;
}
double offset = 0; // TODO getSeriesShape(n).getBounds().height / 2;
return new Range(r.getLowerBound() + offset, r.getUpperBound() + offset);
}
/**
* 创建一个数据集
*
* @return
*/
private CategoryDataset getCategoryDataset() {
DefaultKeyedValues keyedValues = new DefaultKeyedValues();
keyedValues.addValue("1月", 310);
keyedValues.addValue("2月", 489);
keyedValues.addValue("3月", 512);
keyedValues.addValue("4月", 589);
keyedValues.addValue("5月", 359);
keyedValues.addValue("6月", 402);
CategoryDataset dataset = DatasetUtilities.createCategoryDataset("java book", keyedValues);
return dataset;
}
/**
* Returns the range of the values in the dataset's domain, including or excluding the interval
* around each x-value as specified.
*
* @param includeInterval a flag that determines whether or not the x-interval should be taken
* into account.
* @return The range.
*/
@Override
public Range getDomainBounds(boolean includeInterval) {
// first get the range without the interval, then expand it for the
// interval width
Range range = DatasetUtilities.findDomainBounds(this.dataset, false);
if (includeInterval && range != null) {
double lowerAdj = getIntervalWidth() * getIntervalPositionFactor();
double upperAdj = getIntervalWidth() - lowerAdj;
range = new Range(range.getLowerBound() - lowerAdj, range.getUpperBound() + upperAdj);
}
return range;
}
/**
* Creates a sample dataset.
*
* @return A sample dataset.
*/
private CategoryDataset createDataset() {
final double[][] data =
new double[][] {
{3.0, 4.0, 3.0, 5.0},
{5.0, 7.0, 6.0, 8.0},
{5.0, 7.0, 3.0, 8.0},
{1.0, 2.0, 3.0, 4.0},
{2.0, 3.0, 2.0, 3.0}
};
final CategoryDataset dataset =
DatasetUtilities.createCategoryDataset("Region ", "Sales/Q", data);
return dataset;
}
/**
* Returns the range of values the renderer requires to display all the items from the specified
* dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (<code>null</code> if the dataset is <code>null</code> or empty).
* @see #findDomainBounds(XYDataset)
*/
public Range findRangeBounds(XYDataset dataset) {
if (dataset != null) {
Range r = DatasetUtilities.findRangeBounds(dataset, false);
if (r == null) {
return null;
} else {
return new Range(
r.getLowerBound() + this.yOffset, r.getUpperBound() + this.blockHeight + this.yOffset);
}
} else {
return null;
}
}
/**
* 创建一个数据集
*
* @return
*/
private CategoryDataset getCategoryDataset() {
DefaultKeyedValues keyedValues = new DefaultKeyedValues();
keyedValues.addValue("1", 310);
keyedValues.addValue("2", 489);
keyedValues.addValue("3", 512);
keyedValues.addValue("4", 589);
keyedValues.addValue("5", 359);
keyedValues.addValue("6", 402);
// 排序
keyedValues.sortByValues(SortOrder.ASCENDING);
CategoryDataset dataset = DatasetUtilities.createCategoryDataset("JAVA图书", keyedValues);
return dataset;
}
private XYIntervalSeries computeAcceptableDeviationData(double lowerBound, double upperBound) {
final XYSeries identity =
DatasetUtilities.sampleFunction2DToSeries(x -> x, lowerBound, upperBound, 100, "1:1 line");
final XYIntervalSeries xyIntervalSeries = new XYIntervalSeries(identity.getKey());
for (int i = 0; i < identity.getItemCount(); i++) {
XYDataItem item = identity.getDataItem(i);
final double x = item.getXValue();
final double y = item.getYValue();
if (scatterPlotModel.showAcceptableDeviation) {
final double acceptableDeviation = scatterPlotModel.acceptableDeviationInterval;
final double xOff = acceptableDeviation * x / 100;
final double yOff = acceptableDeviation * y / 100;
xyIntervalSeries.add(x, x - xOff, x + xOff, y, y - yOff, y + yOff);
} else {
xyIntervalSeries.add(x, x, x, y, y, y);
}
}
return xyIntervalSeries;
}
private XYIntervalSeries computeRegressionData(double xStart, double xEnd) {
if (scatterpointsDataset.getItemCount(0) > 1) {
final double[] coefficients = Regression.getOLSRegression(scatterpointsDataset, 0);
final Function2D curve = new LineFunction2D(coefficients[0], coefficients[1]);
final XYSeries regressionData =
DatasetUtilities.sampleFunction2DToSeries(curve, xStart, xEnd, 100, "regression line");
final XYIntervalSeries xyIntervalRegression = new XYIntervalSeries(regressionData.getKey());
for (int i = 0; i < regressionData.getItemCount(); i++) {
XYDataItem item = regressionData.getDataItem(i);
final double x = item.getXValue();
final double y = item.getYValue();
xyIntervalRegression.add(x, x, x, y, y, y);
}
return xyIntervalRegression;
} else {
JOptionPane.showMessageDialog(
this,
"Unable to compute regression line.\n"
+ "At least 2 values are needed to compute regression coefficients.");
return null;
}
}
/**
* Create a bar chart with sample data in the range -3 to +3.
*
* @return The chart.
*/
private static JFreeChart createWaterfallChart() {
// create a dataset...
Number[][] data =
new Integer[][] {
{new Integer(-3), new Integer(-2)},
{new Integer(-1), new Integer(1)},
{new Integer(2), new Integer(3)}
};
CategoryDataset dataset = DatasetUtilities.createCategoryDataset("S", "C", data);
// create the chart...
return ChartFactory.createWaterfallChart(
"Waterfall Chart",
"Domain",
"Range",
dataset,
PlotOrientation.HORIZONTAL,
true, // include legend
true,
true);
}
/**
* Starting point for the demo.
*
* @param args ignored.
*/
public static void main(final String[] args) {
// create a chart
final double[][] data =
new double[][] {
{56.0, -12.0, 34.0, 76.0, 56.0, 100.0, 67.0, 45.0},
{37.0, 45.0, 67.0, 25.0, 34.0, 34.0, 100.0, 53.0},
{43.0, 54.0, 34.0, 34.0, 87.0, 64.0, 73.0, 12.0}
};
final CategoryDataset dataset =
DatasetUtilities.createCategoryDataset("Series ", "Type ", data);
JFreeChart chart = null;
final boolean drilldown = true;
if (drilldown) {
final CategoryAxis categoryAxis = new CategoryAxis("Category");
final ValueAxis valueAxis = new NumberAxis("Value");
final BarRenderer renderer = new BarRenderer();
renderer.setToolTipGenerator(new StandardCategoryToolTipGenerator());
renderer.setItemURLGenerator(new StandardCategoryURLGenerator("bar_chart_detail.jsp"));
final CategoryPlot plot = new CategoryPlot(dataset, categoryAxis, valueAxis, renderer);
plot.setOrientation(PlotOrientation.VERTICAL);
chart = new JFreeChart("Bar Chart", JFreeChart.DEFAULT_TITLE_FONT, plot, true);
} else {
chart =
ChartFactory.createBarChart(
"Vertical Bar Chart", // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL,
true, // include legend
true,
false);
}
chart.setBackgroundPaint(java.awt.Color.white);
// ****************************************************************************
// * JFREECHART DEVELOPER GUIDE *
// * The JFreeChart Developer Guide, written by David Gilbert, is available *
// * to purchase from Object Refinery Limited: *
// * *
// * http://www.object-refinery.com/jfreechart/guide.html *
// * *
// * Sales are used to provide funding for the JFreeChart project - please *
// * support us so that we can continue developing free software. *
// ****************************************************************************
// save it to an image
try {
final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection());
final File file1 = new File("barchart100.png");
ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, info);
// write an HTML page incorporating the image with an image map
final File file2 = new File("barchart100.html");
final OutputStream out = new BufferedOutputStream(new FileOutputStream(file2));
final PrintWriter writer = new PrintWriter(out);
writer.println("<HTML>");
writer.println("<HEAD><TITLE>JFreeChart Image Map Demo</TITLE></HEAD>");
writer.println("<BODY>");
ChartUtilities.writeImageMap(writer, "chart", info, true);
writer.println(
"<IMG SRC=\"barchart100.png\" "
+ "WIDTH=\"600\" HEIGHT=\"400\" BORDER=\"0\" USEMAP=\"#chart\">");
writer.println("</BODY>");
writer.println("</HTML>");
writer.close();
} catch (IOException e) {
System.out.println(e.toString());
}
}
/**
* Draws the plot on a Java 2D graphics device (such as the screen or a printer).
*
* @param g2 the graphics device.
* @param area the area within which the plot should be drawn.
* @param anchor the anchor point (<code>null</code> permitted).
* @param parentState the state from the parent plot, if there is one.
* @param info collects info about the drawing.
*/
public void draw(
Graphics2D g2,
Rectangle2D area,
Point2D anchor,
PlotState parentState,
PlotRenderingInfo info) {
// adjust the drawing area for the plot insets (if any)...
RectangleInsets insets = getInsets();
insets.trim(area);
drawBackground(g2, area);
drawOutline(g2, area);
// check that there is some data to display...
if (DatasetUtilities.isEmptyOrNull(getDataset())) {
drawNoDataMessage(g2, area);
return;
}
int pieCount = 0;
if (getDataExtractOrder() == TableOrder.BY_ROW) {
pieCount = getDataset().getRowCount();
} else {
pieCount = getDataset().getColumnCount();
}
// the columns variable is always >= rows
int displayCols = (int) Math.ceil(Math.sqrt(pieCount));
int displayRows = (int) Math.ceil((double) pieCount / (double) displayCols);
// swap rows and columns to match plotArea shape
if (displayCols > displayRows && area.getWidth() < area.getHeight()) {
int temp = displayCols;
displayCols = displayRows;
displayRows = temp;
}
prefetchSectionPaints();
int x = (int) area.getX();
int y = (int) area.getY();
int width = ((int) area.getWidth()) / displayCols;
int height = ((int) area.getHeight()) / displayRows;
int row = 0;
int column = 0;
int diff = (displayRows * displayCols) - pieCount;
int xoffset = 0;
Rectangle rect = new Rectangle();
for (int pieIndex = 0; pieIndex < pieCount; pieIndex++) {
rect.setBounds(x + xoffset + (width * column), y + (height * row), width, height);
String title = null;
if (getDataExtractOrder() == TableOrder.BY_ROW) {
title = getDataset().getRowKey(pieIndex).toString();
} else {
title = getDataset().getColumnKey(pieIndex).toString();
}
getPieChart().setTitle(title);
PieDataset piedataset = null;
PieDataset dd = new CategoryToPieDataset(getDataset(), getDataExtractOrder(), pieIndex);
if (getLimit() > 0.0) {
piedataset =
DatasetUtilities.createConsolidatedPieDataset(dd, getAggregatedItemsKey(), getLimit());
} else {
piedataset = dd;
}
PiePlot piePlot = (PiePlot) getPieChart().getPlot();
piePlot.setDataset(piedataset);
piePlot.setPieIndex(pieIndex);
// update the section colors to match the global colors...
for (int i = 0; i < piedataset.getItemCount(); i++) {
Comparable key = piedataset.getKey(i);
Paint p;
if (key.equals(getAggregatedItemsKey())) {
p = getAggregatedItemsPaint();
} else {
p = (Paint) this.sectionPaints.get(key);
}
piePlot.setSectionPaint(key, p);
}
ChartRenderingInfo subinfo = null;
if (info != null) {
subinfo = new ChartRenderingInfo();
}
getPieChart().draw(g2, rect, subinfo);
if (info != null) {
info.getOwner().getEntityCollection().addAll(subinfo.getEntityCollection());
info.addSubplotInfo(subinfo.getPlotInfo());
}
++column;
if (column == displayCols) {
column = 0;
++row;
if (row == displayRows - 1 && diff != 0) {
xoffset = (diff * width) / 2;
}
}
}
}
/**
* Returns the range of values the renderer requires to display all the items from the specified
* dataset.
*
* @param dataset the dataset (<code>null</code> permitted).
* @return The range (or <code>null</code> if the dataset is <code>null</code> or empty).
*/
public Range findRangeBounds(CategoryDataset dataset) {
return DatasetUtilities.findRangeBounds(dataset);
}
protected void onDataChange() {
XYPlot plot = chartPanel.getChart().getXYPlot();
if (data != DEFAULT_DATA) {
DescriptiveStatistics stats = new DescriptiveStatistics(new DataBlock(data));
double m = 0, M = 0, dv = 1;
if (adjustDistribution && distribution != DEFAULT_DISTRIBUTION) {
m = stats.getAverage();
M = distribution.getExpectation();
double v = stats.getVar();
double V = distribution.getVariance();
dv = Math.sqrt(v / V);
}
final double xmin = stats.getMin() < lBound ? stats.getMin() : lBound;
final double xmax = stats.getMax() > rBound ? stats.getMax() : rBound;
final int n = hCount != 0 ? hCount : (int) Math.ceil(Math.sqrt(stats.getObservationsCount()));
final double xstep = (xmax - xmin) / n;
// distribution >
if (distribution != DEFAULT_DISTRIBUTION) {
Function2D density =
new Function2D() {
@Override
public double getValue(double x) {
return distribution.getDensity(x);
}
};
final double zmin =
distribution.hasLeftBound() != BoundaryType.None
? distribution.getLeftBound()
: ((xmin - xstep - m) / dv + M);
final double zmax =
distribution.hasRightBound() != BoundaryType.None
? distribution.getRightBound()
: ((xmax + xstep - m) / dv + M);
// TODO: create IDistribution#getName() method
String name = distribution.getClass().getSimpleName();
((XYLineAndShapeRenderer) plot.getRenderer(DISTRIBUTION_INDEX))
.setLegendItemToolTipGenerator(getTooltipGenerator(distribution));
plot.setDataset(
DISTRIBUTION_INDEX, DatasetUtilities.sampleFunction2D(density, zmin, zmax, n, name));
} else {
plot.setDataset(DISTRIBUTION_INDEX, Charts.emptyXYDataset());
}
// < distribution
// histogram >
XYSeries hSeries = new XYSeries("");
double nobs = stats.getObservationsCount();
for (int i = 0; i <= n; ++i) {
double x0 = xmin + i * xstep;
double x1 = x0 + xstep;
double y = stats.countBetween(x0, x1) / (nobs * xstep / dv);
hSeries.add(((x0 + x1) / 2 - m) / dv + M, y);
}
plot.setDataset(
HISTOGRAM_INDEX, new XYBarDataset(new XYSeriesCollection(hSeries), xstep / dv + M));
// < histogram
} else {
plot.setDataset(HISTOGRAM_INDEX, Charts.emptyXYDataset());
plot.setDataset(DISTRIBUTION_INDEX, Charts.emptyXYDataset());
}
onColorSchemeChange();
}
public static String getSimpleBarChart(Map dataSource, String objectName, HttpSession session)
throws Throwable {
Element chartObject =
XMLHandler.getElementByAttribute(getChartObjectList(), "name", objectName);
List invokeFields = chartObject.getChild("InvokeFields").getChildren("Field");
double[][] data = new double[invokeFields.size()][dataSource.size()];
String[] rowKeys = new String[invokeFields.size()];
String[] columnKeys = new String[dataSource.size()];
String columnLabel = chartObject.getChildText("ColumnLabel");
for (int i = 0; i < dataSource.size(); i++) {
Map rec = (Map) dataSource.get("ROW" + i);
columnKeys[i] = DataFilter.show(rec, columnLabel);
for (int j = 0; j < invokeFields.size(); j++) {
data[j][i] =
Double.parseDouble(
rec.get(((Element) invokeFields.get(j)).getAttributeValue("name")).toString());
}
}
for (int i = 0; i < invokeFields.size(); i++) {
rowKeys[i] = ((Element) invokeFields.get(i)).getAttributeValue("label");
}
CategoryDataset dataset = DatasetUtilities.createCategoryDataset(rowKeys, columnKeys, data);
PlotOrientation plotOrientation =
chartObject.getAttributeValue("plotOrientation").equalsIgnoreCase("VERTICAL")
? PlotOrientation.VERTICAL
: PlotOrientation.HORIZONTAL;
JFreeChart chart =
ChartFactory.createBarChart3D(
chartObject.getAttributeValue("title"),
chartObject.getAttributeValue("categoryAxisLabel"),
chartObject.getAttributeValue("valueAxisLabel"),
dataset,
plotOrientation,
chartObject.getAttribute("showLegend").getBooleanValue(),
chartObject.getAttribute("showToolTips").getBooleanValue(),
chartObject.getAttribute("urls").getBooleanValue());
CategoryPlot C3dplot = (CategoryPlot) chart.getPlot();
if (chartObject.getAttribute("alpha") != null) {
C3dplot.setForegroundAlpha(chartObject.getAttribute("alpha").getFloatValue());
}
BarRenderer3D barrenderer = (BarRenderer3D) C3dplot.getRenderer();
barrenderer.setLabelGenerator(new StandardCategoryLabelGenerator());
barrenderer.setItemLabelsVisible(true);
barrenderer.setPositiveItemLabelPosition(
new ItemLabelPosition(ItemLabelAnchor.OUTSIDE1, TextAnchor.BASELINE_CENTER));
int width, height;
if (chartObject.getAttributeValue("width").equalsIgnoreCase("auto")) {
width = (50 * dataSource.size()) * invokeFields.size() + 100;
} else {
width = Integer.parseInt(chartObject.getAttributeValue("width"));
}
if (chartObject.getAttributeValue("height").equalsIgnoreCase("auto")) {
height = (50 * dataSource.size()) * invokeFields.size() + 100;
} else {
height = Integer.parseInt(chartObject.getAttributeValue("height"));
}
return ServletUtilities.saveChartAsPNG(chart, width, height, session);
}
public static String getBarSeries(Map dataSource, String objectName, HttpSession session)
throws Exception {
DefaultKeyedValues barValues = new DefaultKeyedValues();
DefaultKeyedValues seriesValues = new DefaultKeyedValues();
Element chartObject =
XMLHandler.getElementByAttribute(getChartObjectList(), "name", objectName);
Element barField = chartObject.getChild("BarFields").getChild("Field");
Element seriesField = chartObject.getChild("SeriesFields").getChild("Field");
for (int i = 0; i < dataSource.size(); i++) {
Map rec = (Map) dataSource.get("ROW" + i);
barValues.addValue(
DataFilter.show(rec, chartObject.getChildText("ColumnLabel")),
Double.parseDouble(rec.get(barField.getAttributeValue("name")).toString()));
seriesValues.addValue(
DataFilter.show(rec, chartObject.getChildText("ColumnLabel")),
Double.parseDouble(rec.get(seriesField.getAttributeValue("name")).toString()));
}
CategoryDataset dataset =
DatasetUtilities.createCategoryDataset(barField.getAttributeValue("label"), barValues);
PlotOrientation plotOrientation =
chartObject.getAttributeValue("plotOrientation").equalsIgnoreCase("VERTICAL")
? PlotOrientation.VERTICAL
: PlotOrientation.HORIZONTAL;
JFreeChart chart =
ChartFactory.createBarChart3D(
chartObject.getAttributeValue("title"),
chartObject.getAttributeValue("categoryAxisLabel"),
chartObject.getAttributeValue("valueAxisLabel"),
dataset,
plotOrientation,
chartObject.getAttribute("showLegend").getBooleanValue(),
chartObject.getAttribute("showToolTips").getBooleanValue(),
chartObject.getAttribute("urls").getBooleanValue());
CategoryPlot categoryplot = chart.getCategoryPlot();
LineRenderer3D lineRenderer = new LineRenderer3D();
CategoryDataset datasetSeries =
DatasetUtilities.createCategoryDataset(
seriesField.getAttributeValue("label"), seriesValues);
categoryplot.setDataset(1, datasetSeries);
categoryplot.setRangeAxis(1, new NumberAxis3D(seriesField.getAttributeValue("label")));
categoryplot.setRenderer(1, lineRenderer);
categoryplot.mapDatasetToRangeAxis(1, 1);
BarRenderer3D barrenderer = (BarRenderer3D) categoryplot.getRenderer();
barrenderer.setLabelGenerator(new StandardCategoryLabelGenerator());
barrenderer.setItemLabelsVisible(true);
barrenderer.setPositiveItemLabelPosition(
new ItemLabelPosition(ItemLabelAnchor.OUTSIDE1, TextAnchor.BASELINE_CENTER));
// lineRenderer.setLabelGenerator(new StandardCategoryLabelGenerator());
// lineRenderer.setItemLabelsVisible(true);
// lineRenderer.setPositiveItemLabelPosition(
// new ItemLabelPosition(ItemLabelAnchor.OUTSIDE10, TextAnchor.CENTER));
float alpha = 0.7F;
if (chartObject.getAttribute("alpha") != null) {
alpha = chartObject.getAttribute("alpha").getFloatValue();
}
categoryplot.setForegroundAlpha(alpha);
int width, height;
if (chartObject.getAttributeValue("width").equalsIgnoreCase("auto")) {
width = (50 * dataSource.size()) + 100;
} else {
width = Integer.parseInt(chartObject.getAttributeValue("width"));
}
if (chartObject.getAttributeValue("height").equalsIgnoreCase("auto")) {
height = (50 * dataSource.size()) + 100;
} else {
height = Integer.parseInt(chartObject.getAttributeValue("height"));
}
return ServletUtilities.saveChartAsPNG(chart, width, height, session);
}
/**
* Draws the visual representation of a single data item.
*
* @param g2 the graphics device.
* @param state the renderer state.
* @param dataArea the area within which the plot is being drawn.
* @param info collects information about the drawing.
* @param plot the plot (can be used to obtain standard color information etc).
* @param domainAxis the domain axis.
* @param rangeAxis the range axis.
* @param dataset the dataset.
* @param series the series index (zero-based).
* @param item the item index (zero-based).
* @param crosshairState crosshair information for the plot (<code>null</code> permitted).
* @param pass the pass index.
*/
public void drawItem(
Graphics2D g2,
XYItemRendererState state,
Rectangle2D dataArea,
PlotRenderingInfo info,
XYPlot plot,
ValueAxis domainAxis,
ValueAxis rangeAxis,
XYDataset dataset,
int series,
int item,
CrosshairState crosshairState,
int pass) {
if (!(dataset instanceof IntervalXYDataset && dataset instanceof TableXYDataset)) {
String message = "dataset (type " + dataset.getClass().getName() + ") has wrong type:";
boolean and = false;
if (!IntervalXYDataset.class.isAssignableFrom(dataset.getClass())) {
message += " it is no IntervalXYDataset";
and = true;
}
if (!TableXYDataset.class.isAssignableFrom(dataset.getClass())) {
if (and) {
message += " and";
}
message += " it is no TableXYDataset";
}
throw new IllegalArgumentException(message);
}
IntervalXYDataset intervalDataset = (IntervalXYDataset) dataset;
double value = intervalDataset.getYValue(series, item);
if (Double.isNaN(value)) {
return;
}
// if we are rendering the values as percentages, we need to calculate
// the total for the current item. Unfortunately here we end up
// repeating the calculation more times than is strictly necessary -
// hopefully I'll come back to this and find a way to add the
// total(s) to the renderer state. The other problem is we implicitly
// assume the dataset has no negative values...perhaps that can be
// fixed too.
double total = 0.0;
if (this.renderAsPercentages) {
total = DatasetUtilities.calculateStackTotal((TableXYDataset) dataset, item);
value = value / total;
}
double positiveBase = 0.0;
double negativeBase = 0.0;
for (int i = 0; i < series; i++) {
double v = dataset.getYValue(i, item);
if (!Double.isNaN(v)) {
if (this.renderAsPercentages) {
v = v / total;
}
if (v > 0) {
positiveBase = positiveBase + v;
} else {
negativeBase = negativeBase + v;
}
}
}
double translatedBase;
double translatedValue;
RectangleEdge edgeR = plot.getRangeAxisEdge();
if (value > 0.0) {
translatedBase = rangeAxis.valueToJava2D(positiveBase, dataArea, edgeR);
translatedValue = rangeAxis.valueToJava2D(positiveBase + value, dataArea, edgeR);
} else {
translatedBase = rangeAxis.valueToJava2D(negativeBase, dataArea, edgeR);
translatedValue = rangeAxis.valueToJava2D(negativeBase + value, dataArea, edgeR);
}
RectangleEdge edgeD = plot.getDomainAxisEdge();
double startX = intervalDataset.getStartXValue(series, item);
if (Double.isNaN(startX)) {
return;
}
double translatedStartX = domainAxis.valueToJava2D(startX, dataArea, edgeD);
double endX = intervalDataset.getEndXValue(series, item);
if (Double.isNaN(endX)) {
return;
}
double translatedEndX = domainAxis.valueToJava2D(endX, dataArea, edgeD);
double translatedWidth = Math.max(1, Math.abs(translatedEndX - translatedStartX));
double translatedHeight = Math.abs(translatedValue - translatedBase);
if (getMargin() > 0.0) {
double cut = translatedWidth * getMargin();
translatedWidth = translatedWidth - cut;
translatedStartX = translatedStartX + cut / 2;
}
Rectangle2D bar = null;
PlotOrientation orientation = plot.getOrientation();
if (orientation == PlotOrientation.HORIZONTAL) {
bar =
new Rectangle2D.Double(
Math.min(translatedBase, translatedValue),
Math.min(translatedEndX, translatedStartX),
translatedHeight,
translatedWidth);
} else if (orientation == PlotOrientation.VERTICAL) {
bar =
new Rectangle2D.Double(
Math.min(translatedStartX, translatedEndX),
Math.min(translatedBase, translatedValue),
translatedWidth,
translatedHeight);
}
boolean positive = (value > 0.0);
boolean inverted = rangeAxis.isInverted();
RectangleEdge barBase;
if (orientation == PlotOrientation.HORIZONTAL) {
if (positive && inverted || !positive && !inverted) {
barBase = RectangleEdge.RIGHT;
} else {
barBase = RectangleEdge.LEFT;
}
} else {
if (positive && !inverted || !positive && inverted) {
barBase = RectangleEdge.BOTTOM;
} else {
barBase = RectangleEdge.TOP;
}
}
if (pass == 0) {
if (getShadowsVisible()) {
getBarPainter().paintBarShadow(g2, this, series, item, bar, barBase, false);
}
} else if (pass == 1) {
getBarPainter().paintBar(g2, this, series, item, bar, barBase);
// add an entity for the item...
if (info != null) {
EntityCollection entities = info.getOwner().getEntityCollection();
if (entities != null) {
addEntity(entities, bar, dataset, series, item, bar.getCenterX(), bar.getCenterY());
}
}
} else if (pass == 2) {
// handle item label drawing, now that we know all the bars have
// been drawn...
if (isItemLabelVisible(series, item)) {
XYItemLabelGenerator generator = getItemLabelGenerator(series, item);
drawItemLabel(g2, dataset, series, item, plot, generator, bar, value < 0.0);
}
}
}