public void loadDataToGrafik() throws IOException {
DefaultCategoryDataset dataset = (DefaultCategoryDataset) this.generateData();
chart =
ChartFactory.createBarChart(
"Statistik Pendidikan Dosen",
"Prodi",
"Jumlah Dosen",
dataset,
PlotOrientation.HORIZONTAL,
true,
true,
false);
chart.setBackgroundPaint(new Color(0xCC, 0xFF, 0xCC));
final CategoryPlot plot = chart.getCategoryPlot();
plot.setDomainAxisLocation(AxisLocation.BOTTOM_OR_LEFT);
plot.setRangeAxisLocation(AxisLocation.TOP_OR_LEFT);
plot.getRangeAxis().setStandardTickUnits(NumberAxis.createIntegerTickUnits());
final CategoryItemRenderer renderer1 = plot.getRenderer();
renderer1.setSeriesPaint(0, Color.red);
renderer1.setSeriesPaint(1, Color.yellow);
renderer1.setSeriesPaint(2, Color.green);
BarRenderer br = (BarRenderer) renderer1;
br.setShadowVisible(false);
br.setShadowVisible(false);
BufferedImage bi = chart.createBufferedImage(900, 1500, BufferedImage.TRANSLUCENT, null);
byte[] bytes = EncoderUtil.encode(bi, ImageFormat.PNG, true);
AImage image = new AImage("Bar Chart", bytes);
chartImg.setContent(image);
btnExport.setDisabled(false);
}
public String creatchat(CategoryDataset cr, int ss) {
JFreeChart chart =
ChartFactory.createLineChart(
"先来先服务", "进程", "时间", cr, PlotOrientation.VERTICAL, true, true, false);
CategoryPlot ccc = (CategoryPlot) chart.getPlot();
// Plot plo=chart.getPlot();
// plo.setDrawingSupplier(getSupplier());
ValueAxis valueaxis = ccc.getRangeAxis(); // getRangeAxis();
// 数据为整型
valueaxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
// 设定显示范围,即总是显示1-10
if (ss == 1) {
Image image;
try {
image = ImageIO.read(new File("C:/wancheng.png"));
chart.setBackgroundImage(image);
chart.setBackgroundImageAlpha(1.0f);
chart.setBorderPaint(Color.white);
ccc.setBackgroundPaint(null);
} catch (IOException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
valueaxis.setLowerBound(-1);
valueaxis.setUpperBound(7);
} else {
valueaxis.setLowerBound(-1);
valueaxis.setUpperBound(7);
}
CategoryItemRenderer renderer = ccc.getRenderer();
renderer.setSeriesPaint(0, Color.YELLOW);
renderer.setSeriesPaint(1, Color.red);
renderer.setSeriesPaint(2, Color.green);
renderer.setSeriesPaint(3, Color.gray);
renderer.setSeriesPaint(4, Color.cyan);
renderer.setSeriesPaint(5, Color.magenta);
renderer.setSeriesPaint(6, Color.pink);
FileOutputStream fos_jpg = null;
try {
if (ss == 1) {
String chaername = "C:/jincheng.png";
fos_jpg = new FileOutputStream(chaername);
// 将报表保存为png文件
ChartUtilities.writeChartAsPNG(fos_jpg, chart, 500, 510);
return chaername;
} else {
String chaername = "C:/wancheng.png";
fos_jpg = new FileOutputStream(chaername);
// 将报表保存为png文件
ChartUtilities.writeChartAsPNG(fos_jpg, chart, 500, 510);
return chaername;
}
} catch (Exception e) {
e.printStackTrace();
return null;
} finally {
try {
fos_jpg.close();
System.out.println("create time-createTimeXYChar.");
} catch (Exception e) {
e.printStackTrace();
}
}
}