public static ChartResult drawChart(HttpServletRequest request, ChartInfo chartInfo)
throws Exception {
ChartResult chartResult = new ChartResult();
// 创建图标
XYChart c = new XYChart(chartInfo.chartWidth, chartInfo.chartHeight, 0xeeeeff, 0x000000, 2);
// c.setBackground(c.linearGradientColor(0, 0, 0, 100, 0x99ccff, 0xffffff), 0x888888);
c.setRoundedFrame();
c.setDropShadow();
// 图标标题
c.addTitle(
chartInfo.getChartTitle(), chartInfo.chartTitleFontType, chartInfo.chartTitleFontSize)
.setMargin2(0, 0, 10, 0);
// Set the plotarea at (60, 80) and of 510 x 275 pixels in size. Use transparent
// border and dark grey (444444) dotted grid lines
// 创建一个框，放在(60, 80)
PlotArea plotArea =
c.setPlotArea(
70,
80,
c.getWidth() - 55 * 2,
c.getHeight() - 80 * 2,
-1,
-1,
Chart.Transparent,
c.dashLineColor(0x444444, 0x0101),
-1);
// 线的说明框
LegendBox legendBox =
c.addLegend(plotArea.getLeftX(), 45, false, chartInfo.lineFontType, chartInfo.lineFontSize);
// legendBox.setAlignment(Chart.TopRight);
legendBox.setBackground(Chart.Transparent, Chart.Transparent);
// xy轴的密度
// c.yAxis().setTickDensity(plotArea.getHeight() / 20);
// c.xAxis().setTickDensity(chartInfo.xDensity);
// xy轴颜色，默认设置成透明
c.xAxis().setColors(Chart.Transparent);
c.yAxis().setColors(Chart.Transparent);
// Set the x-axis margins to 15 pixels, so that the horizontal grid lines can extend
// beyond the leftmost and rightmost vertical grid lines
c.xAxis().setMargin(10, 10);
// 设置xy轴节点的字体和大小
c.xAxis().setLabelStyle(chartInfo.xAxisFontType, chartInfo.xAxisFontSize);
c.yAxis().setLabelStyle(chartInfo.yAxisFontType, chartInfo.yAxisFontSize);
// c.yAxis2().setLabelStyle("Arial Bold", 8);
// 设置y轴说明
c.yAxis().setTitle(chartInfo.getyTitle(), chartInfo.yTitleFontType, chartInfo.yTitleFontSize);
// 设置x轴数据，并设置x轴文子的角度
if (chartInfo.getxLabel() == null) {
throw new Exception("没有图表的x轴数据，请设置(xLabel)");
} else {
c.xAxis().setLabels(chartInfo.getxLabel()).setFontAngle(chartInfo.xLableFontAngle);
c.xAxis().setLabelStyle(chartInfo.xAxisFontType, chartInfo.xAxisFontSize).setFontAngle(45);
c.yAxis().setLabelFormat("{value|,}");
}
/*Mark mark = c.xAxis2().addMark(5, 0x809933ff, "今天", "华文楷体");*/
/*// Set the mark line width to 2 pixels
mark.setLineWidth(2);
mark.setValue(5);
//mark.setMargin(10,0,0,0);
// Set the mark label font color to purple (0x9933ff)
mark.setFontColor(0x9933ff);*/
// 设置y轴
Layer layer = c.addLineLayer2();
for (ChartDataSet dataSet : chartInfo.getChartDataList()) {
// 如果数据集中的数据位空，则跳过
if (dataSet == null || dataSet.getyData() == null) {
continue;
}
// 数据集中的x轴为空则x轴为默认，
// 如果有设置x轴数据，则表示线的开始和结束有变化需要重新开一个layer
if (dataSet.getxDataStart() != null) {
layer = c.addLineLayer2();
}
// 设定Y周数据、 颜色（-1是自动分配颜色）、标题，并设置节点形状和大小
layer
.addDataSet(dataSet.getyData(), -1, dataSet.getTitle())
.setDataSymbol(Chart.CircleShape, 8);
// 如果有x轴的数据则要设置x轴
layer.setXData2(
dataSet.getxDataStart() == null ? 0 : dataSet.getxDataStart(),
dataSet.getxDataEnd() == null ? c.xAxis().getMaxValue() : dataSet.getxDataEnd());
// 设施线的粗细
layer.setLineWidth(2);
}
// Output the chart
if (StringUtils.isEmpty(chartInfo.getChartName())) {
throw new Exception("没有图表的名称，请设置(chartName)");
}
String chartURL = c.makeSession(request, chartInfo.getChartName());
// Include tool tip for the chart
String imageMap = c.getHTMLImageMap("", "", "title='" + chartInfo.getAlertTitle() + "'");
chartResult.setChartURL(chartURL);
chartResult.setImageMap(imageMap);
chartResult.setChartName(chartInfo.getChartName());
return chartResult;
}
