import com.xeiam.xchart.StyleManager.ChartType; //导入依赖的package包/类
/**
 * Creates a frequency bar diagram based on the frequency map.
 *
 * @param freqMap
 *            frequency map
 * @param seriesName
 *            name of the series
 * @return chart
 */
private static Chart makeBarChart(final Map<String, Integer> freqMap,
		final String seriesName) {
	final int frameWidth = 800;
	final int frameHeight = 600;
	// Convert input data for processing
	ArrayList<String> labels = new ArrayList<String>(freqMap.keySet());
	ArrayList<Integer> frequency = new ArrayList<Integer>(freqMap.values());

	// Create Chart
	Chart chart = new ChartBuilder().chartType(ChartType.Bar)
			.width(frameWidth).height(frameHeight).title("Score Histogram")
			.xAxisTitle(seriesName).yAxisTitle("Frequency").build();

	chart.addSeries(seriesName, new ArrayList<String>(labels),
			new ArrayList<Integer>(frequency));

	// Customize Chart
	chart.getStyleManager().setLegendPosition(LegendPosition.InsideNW);

	return chart;
}
 

import com.xeiam.xchart.StyleManager.ChartType; //导入依赖的package包/类
public static Chart createChart(String title, int minX, int maxX, LegendPosition position) {
    Chart chart = new ChartBuilder().width(235).height(200).build();

    // Customize Chart
    chart.setChartTitle(title);
    chart.getStyleManager().setChartTitleVisible(true);
    chart.getStyleManager().setChartTitleFont(new Font("Arial", Font.PLAIN, 10));
    chart.getStyleManager().setLegendPosition(position);
    chart.getStyleManager().setLegendVisible(true);
    chart.getStyleManager().setLegendFont(new Font("Arial", Font.PLAIN, 10));
    chart.getStyleManager().setLegendPadding(6);
    chart.getStyleManager().setLegendSeriesLineLength(6);
    chart.getStyleManager().setAxisTickLabelsFont(new Font("Arial", Font.PLAIN, 9));
    
    chart.getStyleManager().setXAxisMin(minX);
    chart.getStyleManager().setXAxisMax(maxX);
    chart.getStyleManager().setChartBackgroundColor(Color.white);
    chart.getStyleManager().setChartPadding(4);
    
    chart.getStyleManager().setChartType(ChartType.Line);
    return chart;
}
 

import com.xeiam.xchart.StyleManager.ChartType; //导入依赖的package包/类
public static Chart createChart(String title, int width, int height,
                                LegendPosition position, boolean legendVisible) {
    Chart chart = new ChartBuilder().width(width).height(height).build();

    // Customize Chart
    chart.setChartTitle(title);
    chart.getStyleManager().setChartTitleVisible(true);
    chart.getStyleManager().setChartTitleFont(new Font("Arial", Font.PLAIN, 12));
    chart.getStyleManager().setLegendPosition(position);
    chart.getStyleManager().setLegendVisible(legendVisible);
    chart.getStyleManager().setLegendFont(new Font("Arial", Font.PLAIN, 12));
    chart.getStyleManager().setLegendPadding(6);
    chart.getStyleManager().setLegendSeriesLineLength(10);
    chart.getStyleManager().setAxisTickLabelsFont(new Font("Arial", Font.PLAIN, 10));
    
    chart.getStyleManager().setChartBackgroundColor(Color.white);
    chart.getStyleManager().setChartPadding(4);
    
    chart.getStyleManager().setChartType(ChartType.Line);
    return chart;
}
 

import com.xeiam.xchart.StyleManager.ChartType; //导入依赖的package包/类
public static Chart createChart(String title, LegendPosition position) {
    Chart chart = new ChartBuilder().width(650).height(450).build();

    // Customize Chart
    chart.setChartTitle(title);
    chart.getStyleManager().setChartTitleVisible(true);
    chart.getStyleManager().setChartTitleFont(new Font("Arial", Font.PLAIN, 12));
    chart.getStyleManager().setLegendPosition(position);
    chart.getStyleManager().setLegendVisible(true);
    chart.getStyleManager().setLegendFont(new Font("Arial", Font.PLAIN, 12));
    chart.getStyleManager().setLegendPadding(6);
    chart.getStyleManager().setLegendSeriesLineLength(10);
    chart.getStyleManager().setAxisTickLabelsFont(new Font("Arial", Font.PLAIN, 10));
    
    chart.getStyleManager().setChartBackgroundColor(Color.white);
    chart.getStyleManager().setChartPadding(4);
    
    chart.getStyleManager().setChartType(ChartType.Line);
    return chart;
}
 

import com.xeiam.xchart.StyleManager.ChartType; //导入依赖的package包/类
public static Chart createWeeklySubmissionChart( SortedMap<Date,Integer> input, boolean bar) {
	SortedMap<Date,Integer> filledIn = Util.fillInMissing(input, new WeekIncrementer(), 0);
	List<Date> weeks = new ArrayList<Date>();
	List<Number> submissionCounts = new ArrayList<Number>();
	for (Date date : filledIn.keySet()) {
		weeks.add(date);
		submissionCounts.add(filledIn.get(date));
	}

	// Create Chart
	ChartBuilder chartBuilder = new ChartBuilder().
			width(1000).height(300).
			xAxisTitle("Week").yAxisTitle("Submission Count").
			theme(ChartTheme.GGPlot2);
	if (bar) chartBuilder = chartBuilder.chartType(ChartType.Bar);
	Chart chart = chartBuilder.build();

	chart.addSeries("Submission Count", weeks, submissionCounts);

	return chart;
}
 

import com.xeiam.xchart.StyleManager.ChartType; //导入依赖的package包/类
private static ChartType chartType(final PlotType type) {
    switch (type) {
        case AREA:                  return ChartType.Area;
        case BAR:                   return ChartType.Bar;
        case GRID:
        case SCATTER:               return ChartType.Scatter;
        case SCATTER_WITH_TREND:
        case GRID_WITH_TREND:
        case LINE:
        default:                    return ChartType.Line;
    }
}