Example usage for org.jfree.chart.renderer.xy XYStepRenderer XYStepRenderer

List of usage examples for org.jfree.chart.renderer.xy XYStepRenderer XYStepRenderer

  1. HOME
  2. Java
  3. org.jfree
  4. org.jfree.chart.renderer.xy.*
  5. XYStepRenderer
  6. XYStepRenderer

Introduction

In this page you can find the example usage for org.jfree.chart.renderer.xy XYStepRenderer XYStepRenderer.

Prototype

public XYStepRenderer()

Source Link

Document

Constructs a new renderer with no tooltip or URL generation.

Usage

From source file:com.att.aro.ui.view.diagnostictab.CreateBarPlot.java

public XYPlot drawStepChartPlot() {
    XYStepRenderer renderer = new XYStepRenderer();
    renderer.setBaseShapesVisible(true);
    renderer.setSeriesStroke(0, new BasicStroke(2.0f));
    renderer.setSeriesStroke(1, new BasicStroke(2.0f));
    renderer.setDefaultEntityRadius(6);//from w ww .j a  v  a2s .c o  m
    XYPlot plot = new XYPlot(null, null, new NumberAxis(), renderer);
    plot.setDomainPannable(true);
    plot.setRangePannable(true);
    return plot;
}

From source file:org.optaplanner.benchmark.impl.statistic.single.constraintmatchtotalstepscore.ConstraintMatchTotalStepScoreSingleStatistic.java

@Override
public void writeGraphFiles(BenchmarkReport benchmarkReport) {
    List<Map<String, XYSeries>> constraintIdToWeightSeriesMapList = new ArrayList<Map<String, XYSeries>>(
            BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE);
    for (ConstraintMatchTotalStepScoreStatisticPoint point : getPointList()) {
        int scoreLevel = point.getScoreLevel();
        if (scoreLevel >= BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE) {
            continue;
        }//from  w ww.  java 2s. c  om
        while (scoreLevel >= constraintIdToWeightSeriesMapList.size()) {
            constraintIdToWeightSeriesMapList.add(new LinkedHashMap<String, XYSeries>());
        }
        Map<String, XYSeries> constraintIdToWeightSeriesMap = constraintIdToWeightSeriesMapList.get(scoreLevel);
        if (constraintIdToWeightSeriesMap == null) {
            constraintIdToWeightSeriesMap = new LinkedHashMap<String, XYSeries>();
            constraintIdToWeightSeriesMapList.set(scoreLevel, constraintIdToWeightSeriesMap);
        }
        String constraintId = point.getConstraintPackage() + ":" + point.getConstraintName();
        XYSeries weightSeries = constraintIdToWeightSeriesMap.get(constraintId);
        if (weightSeries == null) {
            weightSeries = new XYSeries(point.getConstraintName() + " weight");
            constraintIdToWeightSeriesMap.put(constraintId, weightSeries);
        }
        long timeMillisSpent = point.getTimeMillisSpent();
        weightSeries.add(timeMillisSpent, point.getWeightTotal());
    }
    graphFileList = new ArrayList<File>(constraintIdToWeightSeriesMapList.size());
    for (int scoreLevelIndex = 0; scoreLevelIndex < constraintIdToWeightSeriesMapList
            .size(); scoreLevelIndex++) {
        XYPlot plot = createPlot(benchmarkReport, scoreLevelIndex);
        // No direct ascending lines between 2 points, but a stepping line instead
        XYItemRenderer renderer = new XYStepRenderer();
        plot.setRenderer(renderer);
        XYSeriesCollection seriesCollection = new XYSeriesCollection();
        for (XYSeries series : constraintIdToWeightSeriesMapList.get(scoreLevelIndex).values()) {
            seriesCollection.addSeries(series);
        }
        plot.setDataset(seriesCollection);
        JFreeChart chart = new JFreeChart(singleBenchmarkResult.getName()
                + " constraint match total step score diff level " + scoreLevelIndex + " statistic",
                JFreeChart.DEFAULT_TITLE_FONT, plot, true);
        graphFileList.add(
                writeChartToImageFile(chart, "ConstraintMatchTotalStepScoreStatisticLevel" + scoreLevelIndex));
    }
}

From source file:msi.gama.outputs.layers.charts.ChartJFreeChartOutputScatter.java

@Override
protected AbstractRenderer createRenderer(final IScope scope, final String serieid) {
    final String style = this.getChartdataset().getDataSeries(scope, serieid).getStyle(scope);
    AbstractRenderer newr = new myXYErrorRenderer();
    switch (style) {
    case IKeyword.SPLINE: {
        newr = new XYSplineRenderer();
        break;/*from   w ww .  j a  v  a2s .co m*/
    }
    case IKeyword.STEP: {
        newr = new XYStepRenderer();
        break;
    }
    case IKeyword.DOT: {
        newr = new XYShapeRenderer();
        break;
    }
    case IKeyword.WHISKER: {
        newr = new XYBoxAndWhiskerRenderer();
        break;
    }
    case IKeyword.AREA: {
        newr = new XYAreaRenderer();
        break;
    }
    case IKeyword.BAR: {
        newr = new XYBarRenderer();
        break;
    }
    case IKeyword.THREE_D: {
        newr = new XYLine3DRenderer();
        break;
    }
    case IKeyword.STACK:
    case IKeyword.RING:
    case IKeyword.EXPLODED:
    default: {
        // newr = new FastXYItemRenderer();
        newr = new myXYErrorRenderer();
        ((myXYErrorRenderer) newr).setMyid(serieid);
        ((myXYErrorRenderer) newr).setOutput(this);
        break;

    }
    }
    return newr;
}

From source file:org.optaplanner.benchmark.impl.statistic.subsingle.constraintmatchtotalstepscore.ConstraintMatchTotalStepScoreSubSingleStatistic.java

@Override
public void writeGraphFiles(BenchmarkReport benchmarkReport) {
    List<Map<String, XYSeries>> constraintIdToWeightSeriesMapList = new ArrayList<Map<String, XYSeries>>(
            BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE);
    for (ConstraintMatchTotalStepScoreStatisticPoint point : getPointList()) {
        int scoreLevel = point.getScoreLevel();
        if (scoreLevel >= BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE) {
            continue;
        }/*  w w w.  j av a2s  .  c  o m*/
        while (scoreLevel >= constraintIdToWeightSeriesMapList.size()) {
            constraintIdToWeightSeriesMapList.add(new LinkedHashMap<String, XYSeries>());
        }
        Map<String, XYSeries> constraintIdToWeightSeriesMap = constraintIdToWeightSeriesMapList.get(scoreLevel);
        if (constraintIdToWeightSeriesMap == null) {
            constraintIdToWeightSeriesMap = new LinkedHashMap<String, XYSeries>();
            constraintIdToWeightSeriesMapList.set(scoreLevel, constraintIdToWeightSeriesMap);
        }
        String constraintId = point.getConstraintPackage() + ":" + point.getConstraintName();
        XYSeries weightSeries = constraintIdToWeightSeriesMap.get(constraintId);
        if (weightSeries == null) {
            weightSeries = new XYSeries(point.getConstraintName() + " weight");
            constraintIdToWeightSeriesMap.put(constraintId, weightSeries);
        }
        long timeMillisSpent = point.getTimeMillisSpent();
        weightSeries.add(timeMillisSpent, point.getWeightTotal());
    }
    graphFileList = new ArrayList<File>(constraintIdToWeightSeriesMapList.size());
    for (int scoreLevelIndex = 0; scoreLevelIndex < constraintIdToWeightSeriesMapList
            .size(); scoreLevelIndex++) {
        XYPlot plot = createPlot(benchmarkReport, scoreLevelIndex);
        // No direct ascending lines between 2 points, but a stepping line instead
        XYItemRenderer renderer = new XYStepRenderer();
        plot.setRenderer(renderer);
        XYSeriesCollection seriesCollection = new XYSeriesCollection();
        for (XYSeries series : constraintIdToWeightSeriesMapList.get(scoreLevelIndex).values()) {
            seriesCollection.addSeries(series);
        }
        plot.setDataset(seriesCollection);
        JFreeChart chart = new JFreeChart(subSingleBenchmarkResult.getName()
                + " constraint match total step score diff level " + scoreLevelIndex + " statistic",
                JFreeChart.DEFAULT_TITLE_FONT, plot, true);
        graphFileList.add(
                writeChartToImageFile(chart, "ConstraintMatchTotalStepScoreStatisticLevel" + scoreLevelIndex));
    }
}

From source file:org.drools.planner.benchmark.statistic.BestScoreStatistic.java

private CharSequence writeGraphStatistic(File solverStatisticFilesDirectory, String baseName) {
    XYSeriesCollection seriesCollection = new XYSeriesCollection();
    for (Map.Entry<String, BestScoreStatisticListener> listenerEntry : bestScoreStatisticListenerMap
            .entrySet()) {//from   w  w  w.j a  va 2  s .c  o m
        String configName = listenerEntry.getKey();
        XYSeries configSeries = new XYSeries(configName);
        List<BestScoreStatisticPoint> statisticPointList = listenerEntry.getValue()
                .getBestScoreStatisticPointList();
        for (BestScoreStatisticPoint statisticPoint : statisticPointList) {
            long timeMillisSpend = statisticPoint.getTimeMillisSpend();
            Score score = statisticPoint.getScore();
            Double scoreGraphValue = scoreDefinition.translateScoreToGraphValue(score);
            if (scoreGraphValue != null) {
                configSeries.add(timeMillisSpend, scoreGraphValue);
            }
        }
        seriesCollection.addSeries(configSeries);
    }
    NumberAxis xAxis = new NumberAxis("Time millis spend");
    xAxis.setNumberFormatOverride(new MillisecondsSpendNumberFormat());
    NumberAxis yAxis = new NumberAxis("Score");
    yAxis.setAutoRangeIncludesZero(false);
    XYItemRenderer renderer = new XYStepRenderer();
    XYPlot plot = new XYPlot(seriesCollection, xAxis, yAxis, renderer);
    plot.setOrientation(PlotOrientation.VERTICAL);
    JFreeChart chart = new JFreeChart(baseName + " best score statistic", JFreeChart.DEFAULT_TITLE_FONT, plot,
            true);
    BufferedImage chartImage = chart.createBufferedImage(1024, 768);
    File graphStatisticFile = new File(solverStatisticFilesDirectory, baseName + "Statistic.png");
    OutputStream out = null;
    try {
        out = new FileOutputStream(graphStatisticFile);
        ImageIO.write(chartImage, "png", out);
    } catch (IOException e) {
        throw new IllegalArgumentException("Problem writing graphStatisticFile: " + graphStatisticFile, e);
    } finally {
        IOUtils.closeQuietly(out);
    }
    return "  <img src=\"" + graphStatisticFile.getName() + "\"/>\n";
}

From source file:org.drools.planner.benchmark.statistic.bestscore.BestScoreStatistic.java

private CharSequence writeGraphStatistic(File solverStatisticFilesDirectory, String baseName) {
    NumberAxis xAxis = new NumberAxis("Time millis spend");
    xAxis.setNumberFormatOverride(new MillisecondsSpendNumberFormat());
    NumberAxis yAxis = new NumberAxis("Score");
    yAxis.setAutoRangeIncludesZero(false);
    XYPlot plot = new XYPlot(null, xAxis, yAxis, null);
    int seriesIndex = 0;
    for (Map.Entry<String, BestScoreStatisticListener> listenerEntry : bestScoreStatisticListenerMap
            .entrySet()) {//from w w  w. j a v a  2 s  .com
        String configName = listenerEntry.getKey();
        XYSeries series = new XYSeries(configName);
        List<BestScoreStatisticPoint> statisticPointList = listenerEntry.getValue().getStatisticPointList();
        for (BestScoreStatisticPoint statisticPoint : statisticPointList) {
            long timeMillisSpend = statisticPoint.getTimeMillisSpend();
            Score score = statisticPoint.getScore();
            Double scoreGraphValue = scoreDefinition.translateScoreToGraphValue(score);
            if (scoreGraphValue != null) {
                series.add(timeMillisSpend, scoreGraphValue);
            }
        }
        XYSeriesCollection seriesCollection = new XYSeriesCollection();
        seriesCollection.addSeries(series);
        plot.setDataset(seriesIndex, seriesCollection);
        XYItemRenderer renderer;
        // No direct lines between 2 points
        renderer = new XYStepRenderer();
        if (statisticPointList.size() <= 1) {
            // Workaround for https://sourceforge.net/tracker/?func=detail&aid=3387330&group_id=15494&atid=115494
            renderer = new StandardXYItemRenderer(StandardXYItemRenderer.SHAPES);
        }
        plot.setRenderer(seriesIndex, renderer);
        seriesIndex++;
    }
    plot.setOrientation(PlotOrientation.VERTICAL);
    JFreeChart chart = new JFreeChart(baseName + " best score statistic", JFreeChart.DEFAULT_TITLE_FONT, plot,
            true);
    BufferedImage chartImage = chart.createBufferedImage(1024, 768);
    File graphStatisticFile = new File(solverStatisticFilesDirectory, baseName + "BestScoreStatistic.png");
    OutputStream out = null;
    try {
        out = new FileOutputStream(graphStatisticFile);
        ImageIO.write(chartImage, "png", out);
    } catch (IOException e) {
        throw new IllegalArgumentException("Problem writing graphStatisticFile: " + graphStatisticFile, e);
    } finally {
        IOUtils.closeQuietly(out);
    }
    return "  <img src=\"" + graphStatisticFile.getName() + "\"/>\n";
}

From source file:org.optaplanner.benchmark.impl.statistic.single.constraintmatchtotalbestscore.ConstraintMatchTotalBestScoreSingleStatistic.java

@Override
public void writeGraphFiles(BenchmarkReport benchmarkReport) {
    List<Map<String, XYSeries>> constraintIdToWeightSeriesMapList = new ArrayList<Map<String, XYSeries>>(
            BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE);
    for (ConstraintMatchTotalBestScoreStatisticPoint point : getPointList()) {
        int scoreLevel = point.getScoreLevel();
        if (scoreLevel >= BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE) {
            continue;
        }/*from  ww w  . ja v a 2  s.c om*/
        while (scoreLevel >= constraintIdToWeightSeriesMapList.size()) {
            constraintIdToWeightSeriesMapList.add(new LinkedHashMap<String, XYSeries>());
        }
        Map<String, XYSeries> constraintIdToWeightSeriesMap = constraintIdToWeightSeriesMapList.get(scoreLevel);
        if (constraintIdToWeightSeriesMap == null) {
            constraintIdToWeightSeriesMap = new LinkedHashMap<String, XYSeries>();
            constraintIdToWeightSeriesMapList.set(scoreLevel, constraintIdToWeightSeriesMap);
        }
        String constraintId = point.getConstraintPackage() + ":" + point.getConstraintName();
        XYSeries weightSeries = constraintIdToWeightSeriesMap.get(constraintId);
        if (weightSeries == null) {
            weightSeries = new XYSeries(point.getConstraintName() + " weight");
            constraintIdToWeightSeriesMap.put(constraintId, weightSeries);
        }
        long timeMillisSpent = point.getTimeMillisSpent();
        weightSeries.add(timeMillisSpent, point.getWeightTotal());
    }
    graphFileList = new ArrayList<File>(constraintIdToWeightSeriesMapList.size());
    for (int scoreLevelIndex = 0; scoreLevelIndex < constraintIdToWeightSeriesMapList
            .size(); scoreLevelIndex++) {
        XYPlot plot = createPlot(benchmarkReport, scoreLevelIndex);
        // No direct ascending lines between 2 points, but a stepping line instead
        XYItemRenderer renderer = new XYStepRenderer();
        plot.setRenderer(renderer);
        XYSeriesCollection seriesCollection = new XYSeriesCollection();
        for (XYSeries series : constraintIdToWeightSeriesMapList.get(scoreLevelIndex).values()) {
            seriesCollection.addSeries(series);
        }
        plot.setDataset(seriesCollection);
        JFreeChart chart = new JFreeChart(singleBenchmarkResult.getName()
                + " constraint match total best score diff level " + scoreLevelIndex + " statistic",
                JFreeChart.DEFAULT_TITLE_FONT, plot, true);
        graphFileList.add(
                writeChartToImageFile(chart, "ConstraintMatchTotalBestScoreStatisticLevel" + scoreLevelIndex));
    }
}

From source file:msi.gama.outputs.layers.ChartDataStatement.java

/**
 * @throws GamaRuntimeException/*from  w  w w.j  a  v a 2  s. c  o  m*/
 * @param scope
 */
public ChartData createData(final IScope scope) throws GamaRuntimeException {
    ChartData data = new ChartData();
    String style = getLiteral(IKeyword.STYLE);
    if (style == null) {
        style = IKeyword.LINE;
    }

    GamaColor color = Cast.asColor(scope, getFacetValue(scope, IKeyword.COLOR, Cast.asColor(scope, "black")));
    boolean showMarkers = getFacetValue(scope, MARKER, true);
    boolean showLine = getFacetValue(scope, LINE_VISIBLE, true);
    boolean fillMarkers = getFacetValue(scope, FILL, true);
    String shapeMarker = getFacetValue(scope, MARKERSHAPE, null);

    AbstractRenderer r = null;
    if (style.equals(IKeyword.LINE)) {
        r = new XYLineAndShapeRenderer(true, showMarkers);
        r.setSeriesPaint(0, color);
        ((XYLineAndShapeRenderer) r).setBaseShapesFilled(fillMarkers);
        if (shapeMarker != null) {
            if (shapeMarker.equals(MARKER_SQUARE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[0]);
            } else if (shapeMarker.equals(MARKER_CIRCLE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[1]);
            } else if (shapeMarker.equals(MARKER_UP_TRIANGLE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[2]);
            } else if (shapeMarker.equals(MARKER_DIAMOND)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[3]);
            } else if (shapeMarker.equals(MARKER_HOR_RECTANGLE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[4]);
            } else if (shapeMarker.equals(MARKER_DOWN_TRIANGLE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[5]);
            } else if (shapeMarker.equals(MARKER_HOR_ELLIPSE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[6]);
            } else if (shapeMarker.equals(MARKER_RIGHT_TRIANGLE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[7]);
            } else if (shapeMarker.equals(MARKER_VERT_RECTANGLE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[8]);
            } else if (shapeMarker.equals(MARKER_LEFT_TRIANGLE)) {
                ((XYLineAndShapeRenderer) r).setSeriesShape(0, defaultmarkers[9]);
            } else if (shapeMarker.equals(MARKER_EMPTY)) {
                ((XYLineAndShapeRenderer) r).setSeriesShapesVisible(0, false);
            }

        }
        ((XYLineAndShapeRenderer) r).setSeriesLinesVisible(0, showLine);
    } else if (style.equals(IKeyword.AREA)) {
        r = new XYAreaRenderer();
        r.setSeriesPaint(0, color);
    } else if (style.equals(IKeyword.WHISKER)) {
        r = new BoxAndWhiskerRenderer();
        r.setSeriesPaint(0, color);
    } else if (style.equals(IKeyword.BAR)) {
        r = new BarRenderer();
        r.setSeriesPaint(0, color);
    } else if (style.equals(IKeyword.DOT)) {
        r = new XYDotRenderer();
        r = new XYShapeRenderer();
        r.setSeriesPaint(0, color);
    } else if (style.equals(IKeyword.SPLINE)) {
        r = new XYSplineRenderer();
        r.setSeriesPaint(0, color);
        ((XYSplineRenderer) r).setBaseShapesFilled(fillMarkers);
        ((XYSplineRenderer) r).setBaseShapesVisible(showMarkers);
    } else if (style.equals(IKeyword.STEP)) {
        r = new XYStepRenderer();
    } else if (style.equals(IKeyword.AREA_STACK)) {
        r = new StackedXYAreaRenderer2();
        r.setSeriesPaint(0, color);
    } else if (style.equals(IKeyword.STACK)) {
        r = new StackedBarRenderer();
        r.setSeriesPaint(0, color);
        // ((XYStepRenderer) r).setBaseShapesFilled(fillMarkers);
        // ((XYStepRenderer) r).setBaseShapesVisible(showMarkers);
    }
    data.renderer = r;

    data.name = Cast.asString(scope,
            getFacetValue(scope, IKeyword.LEGEND, getFacetValue(scope, IKeyword.NAME, "data" + dataNumber++)));
    data.color = color;
    // r.setSeriesPaint(0, data.color);
    // in order to "detach" the expression from the current definition scope
    data.value = getFacet(IKeyword.VALUE).resolveAgainst(scope);
    return data;
}

From source file:org.optaplanner.benchmark.impl.statistic.subsingle.constraintmatchtotalbestscore.ConstraintMatchTotalBestScoreSubSingleStatistic.java

@Override
public void writeGraphFiles(BenchmarkReport benchmarkReport) {
    List<Map<String, XYSeries>> constraintIdToWeightSeriesMapList = new ArrayList<Map<String, XYSeries>>(
            BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE);
    for (ConstraintMatchTotalBestScoreStatisticPoint point : getPointList()) {
        int scoreLevel = point.getScoreLevel();
        if (scoreLevel >= BenchmarkReport.CHARTED_SCORE_LEVEL_SIZE) {
            continue;
        }/*from  ww  w  .  j av  a2  s .c o  m*/
        while (scoreLevel >= constraintIdToWeightSeriesMapList.size()) {
            constraintIdToWeightSeriesMapList.add(new LinkedHashMap<String, XYSeries>());
        }
        Map<String, XYSeries> constraintIdToWeightSeriesMap = constraintIdToWeightSeriesMapList.get(scoreLevel);
        if (constraintIdToWeightSeriesMap == null) {
            constraintIdToWeightSeriesMap = new LinkedHashMap<String, XYSeries>();
            constraintIdToWeightSeriesMapList.set(scoreLevel, constraintIdToWeightSeriesMap);
        }
        String constraintId = point.getConstraintPackage() + ":" + point.getConstraintName();
        XYSeries weightSeries = constraintIdToWeightSeriesMap.get(constraintId);
        if (weightSeries == null) {
            weightSeries = new XYSeries(point.getConstraintName() + " weight");
            constraintIdToWeightSeriesMap.put(constraintId, weightSeries);
        }
        long timeMillisSpent = point.getTimeMillisSpent();
        weightSeries.add(timeMillisSpent, point.getWeightTotal());
    }
    graphFileList = new ArrayList<File>(constraintIdToWeightSeriesMapList.size());
    for (int scoreLevelIndex = 0; scoreLevelIndex < constraintIdToWeightSeriesMapList
            .size(); scoreLevelIndex++) {
        XYPlot plot = createPlot(benchmarkReport, scoreLevelIndex);
        // No direct ascending lines between 2 points, but a stepping line instead
        XYItemRenderer renderer = new XYStepRenderer();
        plot.setRenderer(renderer);
        XYSeriesCollection seriesCollection = new XYSeriesCollection();
        for (XYSeries series : constraintIdToWeightSeriesMapList.get(scoreLevelIndex).values()) {
            seriesCollection.addSeries(series);
        }
        plot.setDataset(seriesCollection);
        JFreeChart chart = new JFreeChart(subSingleBenchmarkResult.getName()
                + " constraint match total best score diff level " + scoreLevelIndex + " statistic",
                JFreeChart.DEFAULT_TITLE_FONT, plot, true);
        graphFileList.add(
                writeChartToImageFile(chart, "ConstraintMatchTotalBestScoreStatisticLevel" + scoreLevelIndex));
    }
}

From source file:uk.ac.ed.epcc.webapp.charts.jfreechart.JFreeTimeChartData.java

public TimeChartDataSet addLineGraph(TimeChartDataSet plot) throws InvalidArgument {
    TimeChartDataSet myplot = addTimeSeries(plot);
    if (use_bar || getItems() < STEP_THRESHOLD || use_step) {
        XYStepRenderer renderer = new XYStepRenderer();
        renderer.setAutoPopulateSeriesFillPaint(true);
        ((XYPlot) chart.getPlot()).setRenderer(myplot.getDatasetId(), renderer, false);
    } else {/*from  w w  w  . j av a 2 s  .  c  o  m*/
        XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(true, false);
        renderer.setAutoPopulateSeriesFillPaint(true);
        ((XYPlot) chart.getPlot()).setRenderer(myplot.getDatasetId(), renderer, false);
    }
    return myplot;
}