Example usage for org.jfree.chart.plot XYPlot setRangeGridlinePaint

List of usage examples for org.jfree.chart.plot XYPlot setRangeGridlinePaint

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Introduction

In this page you can find the example usage for org.jfree.chart.plot XYPlot setRangeGridlinePaint.

Prototype

public void setRangeGridlinePaint(Paint paint)

Source Link

Document

Sets the paint for the grid lines plotted against the range axis and sends a PlotChangeEvent to all registered listeners.

Usage

From source file:br.usp.icmc.gazetteer.SemanticSearchTest.Grafico.java

public ChartPanel criaGrafico() {

    // create the chart...  
    JFreeChart graf = ChartFactory.createXYLineChart("MAP ENTRE AS QUERYS", // chart title  
            "QUERY", // x axis label  
            "MAP", // y axis label  
            createDataset1(), // data  
            PlotOrientation.VERTICAL, true, // include legend  
            true, // tooltips  
            false // urls  
    );//from w ww. j  ava2 s  . c o m

    // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...  
    graf.setBackgroundPaint(Color.white);

    // get a reference to the plot for further customisation...  
    XYPlot plot = (XYPlot) graf.getPlot();
    plot.setDataset(1, createDataset2());
    plot.setBackgroundPaint(Color.lightGray);
    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);

    XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) plot.getRenderer();
    renderer.setShapesVisible(false);

    XYLineAndShapeRenderer renderer2 = new XYLineAndShapeRenderer(true, false);
    plot.setRenderer(1, renderer2);

    // change the auto tick unit selection to integer units only...  
    NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
    rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    // OPTIONAL CUSTOMISATION COMPLETED.  

    ChartPanel myChartPanel = new ChartPanel(graf, true);
    return myChartPanel;
}

From source file:charts.Chart.java

public static JFreeChart MultipleSplineLineChart(XYDataset[] datasets, String title, String x_axis_label,
        String y_axis_label, boolean showlegend, float maxvalue, float minvalue, boolean showchart) {

    ValueAxis domainAxis = new NumberAxis(x_axis_label);
    domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    ValueAxis rangeAxis = new NumberAxis(y_axis_label);
    rangeAxis.setStandardTickUnits(NumberAxis.createStandardTickUnits());

    if (minvalue == 0 && maxvalue == 0) {
        rangeAxis.setAutoRange(true);//from  w  w  w .  ja  v a2  s  .  c o  m
    } else {
        rangeAxis.setRange(minvalue, maxvalue);
    }

    //define o grafo combinado, determinando o label do eixo x.
    CombinedDomainXYPlot parent = new CombinedDomainXYPlot(domainAxis);

    for (int i = 0; i < datasets.length; i++) {
        XYSplineRenderer renderer = new XYSplineRenderer();
        renderer.setBaseStroke(new BasicStroke(2.0f));
        renderer.setBaseSeriesVisibleInLegend(showlegend);
        renderer.setShapesVisible(true);
        XYPlot subplot = new XYPlot(datasets[i], domainAxis, rangeAxis, renderer);
        subplot.setBackgroundPaint(Color.white);
        subplot.setRangeGridlinePaint(Color.black);
        subplot.setDomainGridlinesVisible(true);
        parent.add(subplot, 1);
    }
    JFreeChart jfreechart = new JFreeChart(title, parent);
    JPanel jpanel = new ChartPanel(jfreechart);
    jpanel.setPreferredSize(new Dimension(defaultwidth, defaultheight));

    if (showchart) {
        JFrame chartwindow = new JFrame(title);
        chartwindow.setContentPane(jpanel);
        chartwindow.pack();
        RefineryUtilities.centerFrameOnScreen(chartwindow);
        chartwindow.setVisible(true);
    }
    return jfreechart;
}

From source file:Applet.EmbeddedChart.java

/**
 * Creates a chart./*  w  w  w  .  jav a 2  s .co  m*/
 * 
 * @param dataset
 *            the data for the chart.
 * 
 * @return a chart.
 */
private JFreeChart createChart(final XYDataset dataset, String title, boolean gofr) {

    // create the chart...
    final JFreeChart chart = ChartFactory.createXYLineChart(null, // chart
            // title
            "Radial Distance,  r/\u03c3", // x axis label
            title, // y axis label
            dataset, // data
            PlotOrientation.VERTICAL, true, // include legend
            true, // tooltips
            false // urls
    );

    // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
    chart.setBackgroundPaint(Color.white);
    chart.getLegend().setPosition(RectangleEdge.RIGHT);

    // final StandardLegend legend = (StandardLegend) chart.getLegend();
    // legend.setDisplaySeriesShapes(true);

    // get a reference to the plot for further customisation...
    final XYPlot plot = chart.getXYPlot();
    plot.setBackgroundPaint(Color.lightGray);
    // plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));
    plot.setDomainGridlinePaint(Color.white);
    plot.setRangeGridlinePaint(Color.white);
    XYTitleAnnotation xyta = new XYTitleAnnotation(0.98, 0.98, chart.getLegend(), RectangleAnchor.TOP_RIGHT);
    chart.removeLegend();
    plot.addAnnotation(xyta);

    final XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(true, false);

    for (int i = 0; i < 2; i++) {
        renderer.setSeriesPaint(i * 6 + 0, new Color(255, 0, 0));
        renderer.setSeriesPaint(i * 6 + 1, new Color(0, 0, 255));
        renderer.setSeriesPaint(i * 6 + 2, new Color(0, 139, 0));
        renderer.setSeriesPaint(i * 6 + 3, new Color(255, 165, 0));
        renderer.setSeriesPaint(i * 6 + 4, new Color(255, 0, 255));
        renderer.setSeriesPaint(i * 6 + 5, new Color(0, 0, 0));

        renderer.setSeriesStroke(i * 6 + 0, new BasicStroke(1.3f, BasicStroke.CAP_SQUARE,
                BasicStroke.JOIN_MITER, 10.0f, new float[] { 10.0f }, 0.0f));
        renderer.setSeriesStroke(i * 6 + 1, new BasicStroke(1.3f, BasicStroke.CAP_SQUARE,
                BasicStroke.JOIN_MITER, 10.0f, new float[] { 50.0f, 2.0f }, 0.0f));
        renderer.setSeriesStroke(i * 6 + 2, new BasicStroke(1.3f, BasicStroke.JOIN_ROUND,
                BasicStroke.JOIN_MITER, 10.0f, new float[] { 30.0f, 1.0f, 1.0f }, 0.0f));
        renderer.setSeriesStroke(i * 6 + 3, new BasicStroke(1.3f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND,
                10.0f, new float[] { 1.0f, 3.0f }, 0.0f));
        renderer.setSeriesStroke(i * 6 + 4, new BasicStroke(1.3f, BasicStroke.CAP_SQUARE,
                BasicStroke.JOIN_MITER, 10.0f, new float[] { 1.0f, 2.0f, 3.0f, 4.0f }, 0.0f));
        renderer.setSeriesStroke(i * 6 + 5, new BasicStroke(1.3f, BasicStroke.CAP_SQUARE,
                BasicStroke.JOIN_MITER, 10.0f, new float[] { 5.0f, 1.0f, 20.0f, 1.0f }, 0.0f));
    }

    plot.setRenderer(renderer);

    return chart;

}

From source file:com.romraider.logger.ecu.ui.handler.graph.GraphUpdateHandler.java

private JFreeChart createXYLineChart(LoggerData loggerData, XYDataset dataset, boolean combined) {
    String title = combined ? "Combined Data" : loggerData.getName();
    String rangeAxisTitle = combined ? "Data" : buildRangeAxisTitle(loggerData);
    JFreeChart chart = ChartFactory.createXYLineChart(title, "Time (sec)", rangeAxisTitle, dataset, VERTICAL,
            false, true, false);/*from w w  w.j  ava 2s  . c  om*/
    chart.setBackgroundPaint(BLACK);
    chart.getTitle().setPaint(WHITE);
    XYPlot plot = chart.getXYPlot();
    plot.setBackgroundPaint(BLACK);
    plot.getDomainAxis().setLabelPaint(WHITE);
    plot.getRangeAxis().setLabelPaint(WHITE);
    plot.getDomainAxis().setTickLabelPaint(LIGHT_GREY);
    plot.getRangeAxis().setTickLabelPaint(LIGHT_GREY);
    plot.setDomainGridlinePaint(DARK_GREY);
    plot.setRangeGridlinePaint(DARK_GREY);
    plot.setOutlinePaint(DARK_GREY);
    return chart;
}

From source file:mekhq.gui.FinancesTab.java

private JFreeChart createAmountChart(XYDataset dataset) {
    JFreeChart chart = ChartFactory.createTimeSeriesChart("", // title
            resourceMap.getString("graphDate.text"), // x-axis label
            resourceMap.getString("graphCBills.text"), // y-axis label
            dataset);/*from  w  w  w. j a v  a 2 s .  c o  m*/

    chart.setBackgroundPaint(Color.WHITE);

    XYPlot plot = (XYPlot) chart.getPlot();
    plot.setBackgroundPaint(Color.LIGHT_GRAY);
    plot.setDomainGridlinePaint(Color.WHITE);
    plot.setRangeGridlinePaint(Color.WHITE);
    plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0));
    plot.setDomainCrosshairVisible(true);
    plot.setRangeCrosshairVisible(true);

    XYItemRenderer r = plot.getRenderer();
    if (r instanceof XYLineAndShapeRenderer) {
        XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r;
        renderer.setDefaultShapesVisible(true);
        renderer.setDefaultShapesFilled(true);
        renderer.setDrawSeriesLineAsPath(true);
    }

    DateAxis axis = (DateAxis) plot.getDomainAxis();
    axis.setDateFormatOverride(new SimpleDateFormat("MMM-yyyy"));

    chart.removeLegend();

    return chart;
}

From source file:GraphUI.java

/**
 * Creates new form GraphUI//  w  ww.j a  va 2 s. c o  m
 */
public GraphUI() {
    try {
        //graphPane is the jPanel in the jFrame
        //cp is the ChartPanel that needs to be held inside jPanel1
        initComponents();
        data = Pinwheel.getData();
        this.batch = data[0];

        //jPanel1 = createChartPanel();
        cp = createChartPanel();
        //cp = new ChartPanel(chart);
        cp.setMouseWheelEnabled(true);

        jPanel1.add(cp);

        XYPlot plot = chart.getXYPlot();

        XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer();

        renderer.setSeriesStroke(0, new BasicStroke(3.0f));
        renderer.setSeriesStroke(1, new BasicStroke(3.0f));

        plot.setBackgroundPaint(Color.DARK_GRAY);

        plot.setRangeGridlinesVisible(true);
        plot.setRangeGridlinePaint(Color.BLACK);

        plot.setDomainGridlinesVisible(true);
        plot.setDomainGridlinePaint(Color.BLACK);

        plot.setRenderer(renderer);

        this.addWindowListener(new java.awt.event.WindowAdapter() {
            @Override
            public void windowClosing(java.awt.event.WindowEvent windowEvent) {
                backBtn.doClick();
            }
        });

    } catch (SQLException ex) {
        Logger.getLogger(GraphUI.class.getName()).log(Level.SEVERE, null, ex);
    }
}

From source file:com.kodemore.freechart.KmSimpleLineChart.java

private JFreeChart createChart(XYDataset dataset) {
    PlotOrientation orientation = PlotOrientation.VERTICAL;

    boolean showsTooltips = false;
    boolean showsUrls = false;

    JFreeChart chart = ChartFactory.createXYLineChart(getTitle(), getAxisTitleX(), getAxisTitleY(), dataset,
            orientation, getShowsLegend(), showsTooltips, showsUrls);

    if (hasBackgroundColor())
        chart.setBackgroundPaint(getBackgroundColor());

    XYPlot plot;
    plot = chart.getXYPlot();//w w  w  .  j a va2s.  c o m

    if (hasPlotBackgroundColor())
        plot.setBackgroundPaint(getPlotBackgroundColor());

    if (hasPlotGridLineColor()) {
        Color color = getPlotGridLineColor();
        plot.setDomainGridlinePaint(color);
        plot.setRangeGridlinePaint(color);
    }

    XYLineAndShapeRenderer renderer;
    renderer = new XYLineAndShapeRenderer();

    KmList<KmSimpleLineChartGroup> groups = getGroups();
    int n = groups.size();
    for (int i = 0; i < n; i++) {
        KmSimpleLineChartGroup group = groups.getAt(i);

        renderer.setSeriesLinesVisible(i, group.getShowsLines());
        renderer.setSeriesShapesVisible(i, group.getShowsShapes());
    }

    plot.setRenderer(renderer);

    if (getIntegerUnitsX()) {
        NumberAxis rangeAxis;
        rangeAxis = (NumberAxis) plot.getRangeAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    }

    if (getIntegerUnitsY()) {
        NumberAxis rangeAxis;
        rangeAxis = (NumberAxis) plot.getDomainAxis();
        rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    }

    return chart;
}

From source file:it.eng.spagobi.engines.chart.bo.charttypes.XYCharts.BlockChart.java

/**
 * Creates a chart for the specified dataset.
 * /*  w  w  w.j  a  v a2  s  .co  m*/
 * @param dataset  the dataset.
 * 
 * @return A chart instance.
 */
public JFreeChart createChart(DatasetMap datasets) {
    XYZDataset dataset = (XYZDataset) datasets.getDatasets().get("1");
    //Creates the xAxis with its label and style
    NumberAxis xAxis = new NumberAxis(xLabel);
    xAxis.setLowerMargin(0.0);
    xAxis.setUpperMargin(0.0);
    xAxis.setLabel(xLabel);
    if (addLabelsStyle != null && addLabelsStyle.getFont() != null) {
        xAxis.setLabelFont(addLabelsStyle.getFont());
        xAxis.setLabelPaint(addLabelsStyle.getColor());
    }
    //Creates the yAxis with its label and style
    NumberAxis yAxis = new NumberAxis(yLabel);

    yAxis.setAutoRangeIncludesZero(false);
    yAxis.setInverted(false);
    yAxis.setLowerMargin(0.0);
    yAxis.setUpperMargin(0.0);
    yAxis.setTickLabelsVisible(true);
    yAxis.setLabel(yLabel);
    if (addLabelsStyle != null && addLabelsStyle.getFont() != null) {
        yAxis.setLabelFont(addLabelsStyle.getFont());
        yAxis.setLabelPaint(addLabelsStyle.getColor());
    }
    yAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    Color outboundCol = new Color(Integer.decode(outboundColor).intValue());

    //Sets the graph paint scale and the legend paintscale
    LookupPaintScale paintScale = new LookupPaintScale(zvalues[0], (new Double(zrangeMax)).doubleValue(),
            outboundCol);
    LookupPaintScale legendPaintScale = new LookupPaintScale(0.5, 0.5 + zvalues.length, outboundCol);

    for (int ke = 0; ke <= (zvalues.length - 1); ke++) {
        Double key = (new Double(zvalues[ke]));
        Color temp = (Color) colorRangeMap.get(key);
        paintScale.add(zvalues[ke], temp);
        legendPaintScale.add(0.5 + ke, temp);
    }
    //Configures the renderer
    XYBlockRenderer renderer = new XYBlockRenderer();
    renderer.setPaintScale(paintScale);
    double blockHeight = (new Double(blockH)).doubleValue();
    double blockWidth = (new Double(blockW)).doubleValue();
    renderer.setBlockWidth(blockWidth);
    renderer.setBlockHeight(blockHeight);

    //configures the plot with title, subtitle, axis ecc.
    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    plot.setBackgroundPaint(Color.white);
    plot.setDomainGridlinePaint(Color.black);
    plot.setRangeGridlinePaint(Color.black);
    plot.setDomainCrosshairPaint(Color.black);

    plot.setForegroundAlpha(0.66f);
    plot.setAxisOffset(new RectangleInsets(5, 5, 5, 5));
    JFreeChart chart = new JFreeChart(plot);
    TextTitle title = setStyleTitle(name, styleTitle);
    chart.setTitle(title);
    if (subName != null && !subName.equals("")) {
        TextTitle subTitle = setStyleTitle(subName, styleSubTitle);
        chart.addSubtitle(subTitle);
    }
    chart.removeLegend();
    chart.setBackgroundPaint(Color.white);

    //Sets legend labels
    SymbolAxis scaleAxis = new SymbolAxis(null, legendLabels);
    scaleAxis.setRange(0.5, 0.5 + zvalues.length);
    scaleAxis.setPlot(new PiePlot());
    scaleAxis.setGridBandsVisible(false);
    scaleAxis.setLabel(zLabel);
    //scaleAxis.setLabelAngle(3.14/2);
    scaleAxis.setLabelFont(addLabelsStyle.getFont());
    scaleAxis.setLabelPaint(addLabelsStyle.getColor());

    //draws legend as chart subtitle
    PaintScaleLegend psl = new PaintScaleLegend(legendPaintScale, scaleAxis);
    psl.setAxisOffset(2.0);
    psl.setPosition(RectangleEdge.RIGHT);
    psl.setMargin(new RectangleInsets(5, 1, 5, 1));
    chart.addSubtitle(psl);

    if (yLabels != null) {
        //Sets y legend labels
        LookupPaintScale legendPaintScale2 = new LookupPaintScale(0, (yLabels.length - 1), Color.white);

        for (int ke = 0; ke < yLabels.length; ke++) {
            Color temp = Color.white;
            legendPaintScale2.add(1 + ke, temp);
        }

        SymbolAxis scaleAxis2 = new SymbolAxis(null, yLabels);
        scaleAxis2.setRange(0, (yLabels.length - 1));
        scaleAxis2.setPlot(new PiePlot());
        scaleAxis2.setGridBandsVisible(false);

        //draws legend as chart subtitle
        PaintScaleLegend psl2 = new PaintScaleLegend(legendPaintScale2, scaleAxis2);
        psl2.setAxisOffset(5.0);
        psl2.setPosition(RectangleEdge.LEFT);
        psl2.setMargin(new RectangleInsets(8, 1, 40, 1));
        psl2.setStripWidth(0);
        psl2.setStripOutlineVisible(false);
        chart.addSubtitle(psl2);
    }

    return chart;
}

From source file:it.eng.spagobi.engines.chart.bo.charttypes.XYCharts.SimpleBlockChart.java

/**
 * Creates a chart for the specified dataset.
 * //  w  w w  . j  ava  2s. c  o  m
 * @param dataset  the dataset.
 * 
 * @return A chart instance.
 */
public JFreeChart createChart(DatasetMap datasets) {
    logger.debug("IN");
    XYZDataset dataset = (XYZDataset) datasets.getDatasets().get("1");

    JFreeChart chart = null;

    NumberAxis xAxis = new NumberAxis(xLabel);
    xAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());

    if (xLowerBound != null && xUpperBound != null) {
        xAxis.setLowerBound(xLowerBound);
        xAxis.setUpperBound(xUpperBound);
    } else {
        xAxis.setAutoRange(true);
    }
    xAxis.setAxisLinePaint(Color.white);
    xAxis.setTickMarkPaint(Color.white);

    if (addLabelsStyle != null && addLabelsStyle.getFont() != null) {
        xAxis.setLabelFont(addLabelsStyle.getFont());
        xAxis.setLabelPaint(addLabelsStyle.getColor());
    }

    NumberAxis yAxis = new NumberAxis(yLabel);
    yAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    if (yLowerBound != null && yUpperBound != null) {
        yAxis.setLowerBound(yLowerBound);
        yAxis.setUpperBound(yUpperBound);
    } else
        yAxis.setAutoRange(true);

    yAxis.setAxisLinePaint(Color.white);
    yAxis.setTickMarkPaint(Color.white);

    if (addLabelsStyle != null && addLabelsStyle.getFont() != null) {
        yAxis.setLabelFont(addLabelsStyle.getFont());
        yAxis.setLabelPaint(addLabelsStyle.getColor());
    }

    XYBlockRenderer renderer = new XYBlockRenderer();

    PaintScale paintScale = null;

    if (grayPaintScale) {
        paintScale = new GrayPaintScale(minScaleValue, maxScaleValue);
    } else {
        if (scaleLowerBound != null && scaleUpperBound != null) {
            paintScale = new LookupPaintScale(scaleLowerBound, scaleUpperBound, Color.gray);
        } else {
            paintScale = new LookupPaintScale(minScaleValue, maxScaleValue, Color.gray);
        }
        for (int i = 0; i < zRangeArray.length; i++) {
            ZRange zRange = zRangeArray[i];
            ((LookupPaintScale) paintScale).add(zRange.getValue().doubleValue(), zRange.getColor());

        }
    }

    renderer.setPaintScale(paintScale);

    XYPlot plot = new XYPlot(dataset, xAxis, yAxis, renderer);
    plot.setBackgroundPaint(Color.lightGray);
    plot.setDomainGridlinesVisible(false);
    plot.setRangeGridlinePaint(Color.white);
    plot.setAxisOffset(new RectangleInsets(5, 5, 5, 5));
    plot.setForegroundAlpha(0.66f);

    chart = new JFreeChart(plot);
    TextTitle title = setStyleTitle(name, styleTitle);
    chart.setTitle(title);
    if (subName != null && !subName.equals("")) {
        TextTitle subTitle = setStyleTitle(subName, styleSubTitle);
        chart.addSubtitle(subTitle);
    }

    chart.removeLegend();

    NumberAxis scaleAxis = new NumberAxis(zLabel);
    scaleAxis.setAxisLinePaint(Color.white);
    scaleAxis.setTickMarkPaint(Color.white);
    scaleAxis.setTickLabelFont(new Font("Dialog", Font.PLAIN, 7));
    if (scaleLowerBound != null && scaleUpperBound != null) {
        scaleAxis.setLowerBound(scaleLowerBound);
        scaleAxis.setUpperBound(scaleUpperBound);
    } else
        scaleAxis.setAutoRange(true);

    if (addLabelsStyle != null && addLabelsStyle.getFont() != null) {
        scaleAxis.setLabelFont(addLabelsStyle.getFont());
        scaleAxis.setLabelPaint(addLabelsStyle.getColor());
    }

    if (blockHeight != null && blockWidth != null) {
        renderer.setBlockWidth(blockWidth.doubleValue());
        renderer.setBlockHeight(blockHeight.doubleValue());
    }

    PaintScaleLegend legend = new PaintScaleLegend(paintScale, scaleAxis);
    legend.setAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
    legend.setAxisOffset(5.0);
    legend.setMargin(new RectangleInsets(5, 5, 5, 5));
    legend.setFrame(new BlockBorder(Color.black));
    legend.setPadding(new RectangleInsets(10, 10, 10, 10));
    legend.setStripWidth(10);
    legend.setPosition(RectangleEdge.RIGHT);
    legend.setBackgroundPaint(color);

    chart.addSubtitle(legend);

    //      chart.setBackgroundPaint(new Color(180, 180, 250));   
    chart.setBackgroundPaint(color);

    logger.debug("OUT");
    return chart;
}

From source file:charts.Chart.java

public static JFreeChart MultipleStepChartOverlayed(XYDataset[] datasets1, XYDataset[] datasets2, String title,
        String x_axis_label, String y_axis_label, boolean showlegend, float maxvalue, float minvalue,
        boolean showchart) {

    ValueAxis domainAxis = new NumberAxis(x_axis_label);
    domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
    ValueAxis rangeAxis = new NumberAxis(y_axis_label);
    rangeAxis.setStandardTickUnits(NumberAxis.createStandardTickUnits());

    if (minvalue == 0 && maxvalue == 0) {
        rangeAxis.setAutoRange(true);//from w ww  .ja  v  a  2 s .c om
    } else {
        rangeAxis.setRange(minvalue, maxvalue);
    }

    //define o grafo combinado, determinando o label do eixo x.
    CombinedDomainXYPlot parent = new CombinedDomainXYPlot(domainAxis);

    for (int i = 0; i < datasets1.length; i++) {
        XYItemRenderer renderer1 = new XYStepRenderer();
        renderer1.setBaseStroke(new BasicStroke(2.0f));
        renderer1.setBaseSeriesVisibleInLegend(showlegend);
        XYPlot subplot = new XYPlot(datasets1[i], domainAxis, rangeAxis, renderer1);
        subplot.setBackgroundPaint(Color.white);
        subplot.setRangeGridlinePaint(Color.black);
        subplot.setDomainGridlinesVisible(true);

        XYSplineRenderer renderer2 = new XYSplineRenderer();
        renderer2.setSeriesPaint(0, Color.LIGHT_GRAY);
        renderer2.setBaseStroke(new BasicStroke(2.0f));
        renderer2.setShapesVisible(true);
        renderer2.setBaseSeriesVisibleInLegend(false);
        subplot.setDataset(1, datasets2[i]);
        subplot.setRenderer(1, renderer2);
        parent.add(subplot, 1);
    }
    JFreeChart jfreechart = new JFreeChart(title, parent);
    JPanel jpanel = new ChartPanel(jfreechart);
    jpanel.setPreferredSize(new Dimension(defaultwidth, defaultheight));

    if (showchart) {
        JFrame chartwindow = new JFrame(title);
        chartwindow.setContentPane(jpanel);
        chartwindow.pack();
        RefineryUtilities.centerFrameOnScreen(chartwindow);
        chartwindow.setVisible(true);
    }
    return jfreechart;
}