如何在股票条形图上绘制十字准线

嗨，我想在这个barchar上绘制十字线。可以给我一个帮助。我想要十字线打印X和y坐在我的鼠标指向或点击的地方。我很好，即使十字线打印X和Y坐在上面console。这是我的代码

import java.awt.Color; import java.awt.Dimension; import java.io.BufferedReader; import java.io.FileReader; import java.text.DateFormat; import java.text.DecimalFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.StringTokenizer; import javax.swing.JPanel; import org.jfree.chart.ChartColor; import org.jfree.chart.ChartPanel; import org.jfree.chart.ChartUtilities; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.labels.StandardXYToolTipGenerator; import org.jfree.chart.plot.CombinedDomainXYPlot; import org.jfree.chart.plot.Marker; import org.jfree.chart.plot.ValueMarker; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.HighLowRenderer; import org.jfree.chart.renderer.xy.StandardXYBarPainter; import org.jfree.chart.renderer.xy.XYBarRenderer; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.data.time.Day; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.time.ohlc.OHLCSeries; import org.jfree.data.time.ohlc.OHLCSeriesCollection; import org.jfree.data.xy.IntervalXYDataset; import org.jfree.data.xy.OHLCDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; public class PriceVolumeChart2 extends ApplicationFrame { final static String filename = "D:\\CL.txt"; /** * Default constructor */ public PriceVolumeChart2(String title) { super(title); JPanel panel = createDemoPanel(); panel.setPreferredSize(new Dimension(1200, 800)); setContentPane(panel); } private static OHLCDataset createPriceDataset(String filename) { // the following data is taken from http://finance.yahoo.com/ // for demo purposes... OHLCSeries s1 = new OHLCSeries(filename); try { BufferedReader in = new BufferedReader(new FileReader(filename)); DateFormat df = new SimpleDateFormat("MM/dd/yyyy"); String inputLine; in.readLine(); while ((inputLine = in.readLine()) != null) { StringTokenizer st = new StringTokenizer(inputLine, ","); Date date = df.parse(st.nextToken()); double open = Double.parseDouble(st.nextToken()); double high = Double.parseDouble(st.nextToken()); double low = Double.parseDouble(st.nextToken()); double close = Double.parseDouble(st.nextToken()); s1.add(new Day(date), open, high, low, close); //t1.add(new Day(date), close); } in.close(); } catch (Exception e) { e.printStackTrace(); } OHLCSeriesCollection dataset = new OHLCSeriesCollection(); dataset.addSeries(s1); return dataset; } private static JFreeChart createCombinedChart() { OHLCDataset data1 = createPriceDataset(filename); System.out.println(data1.getItemCount(0)); HighLowRenderer renderer1 = new HighLowRenderer(); renderer1.setTickLength(3); renderer1.setBaseToolTipGenerator(new StandardXYToolTipGenerator (StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT, new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00"))); renderer1.setSeriesPaint(0, Color.blue); DateAxis domainAxis = new DateAxis("Date"); NumberAxis rangeAxis = new NumberAxis("Price"); rangeAxis.setNumberFormatOverride(new DecimalFormat("$0.00")); rangeAxis.setAutoRange(true); rangeAxis.setAutoRangeIncludesZero(false); ChartColor chartColor=new ChartColor(0, 0, 0); XYPlot plot1 = new XYPlot(data1, domainAxis, rangeAxis, renderer1); plot1.getRangeCrosshairPaint(); plot1.setRangePannable(true); JFreeChart chart = new JFreeChart("NSE NIFTY", JFreeChart.DEFAULT_TITLE_FONT, plot1, false); //ChartUtilities.applyCurrentTheme(chart); return chart; } // create a panel public static JPanel createDemoPanel() { JFreeChart chart = createCombinedChart(); return new ChartPanel(chart); } public static void main(String[] args) { // TODO code application logic here PriceVolumeChart2 demo = new PriceVolumeChart2("JFreeChart"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } // Download data from web } 

这是我的输出。我希望十字线根据X轴和Y轴的给定值告诉我x和y坐标

Answer 1

您可以启用跟踪function以跟随鼠标，如此处所示。 您可以添加ChartMouseListener以查看鼠标下的ChartEntity ，如此处所示。

附录：鉴于这些情况，

 JFreeChart chart = new JFreeChart(…); chartPanel = new ChartPanel(chart); 

此完整示例启用跟踪：

 chartPanel.setHorizontalAxisTrace(true); chartPanel.setVerticalAxisTrace(true); 

这个完整的示例添加了ChartMouseListener ：

 chartPanel.addChartMouseListener(new ChartMouseListener() { @Override public void chartMouseClicked(ChartMouseEvent e) { final ChartEntity entity = e.getEntity(); System.out.println(entity + " " + entity.getArea()); } @Override public void chartMouseMoved(ChartMouseEvent e) { } }); 

Answer 2

嘿家伙我找到了答案..谢谢trashgod帮助我..以下代码有助于绘制一个带有移动十字线的条形图，y坐标显示在JLabel上.CL.txt文件只包含日期，开，关，高，低（都是双值）。

 import java.awt.Color; import java.awt.Point; import java.awt.geom.Point2D; import java.awt.geom.Rectangle2D; import java.io.BufferedReader; import java.io.FileReader; import java.text.DateFormat; import java.text.DecimalFormat; import java.text.SimpleDateFormat; import java.util.Date; import java.util.StringTokenizer; import javax.swing.JLabel; import org.jfree.chart.ChartColor; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartMouseEvent; import org.jfree.chart.ChartMouseListener; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.labels.StandardXYToolTipGenerator; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.HighLowRenderer; import org.jfree.data.time.Day; import org.jfree.data.time.ohlc.OHLCSeries; import org.jfree.data.time.ohlc.OHLCSeriesCollection; import org.jfree.data.xy.OHLCDataset; import org.jfree.data.xy.XYDataset; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RectangleEdge; import org.jfree.ui.RefineryUtilities; /** * An example showing how to convert the mouse location to chart coordinates. */ public class MouseListenerDemo4 extends ApplicationFrame implements ChartMouseListener { private JFreeChart chart; private ChartPanel chartPanel; private JLabel priceLabel; public MouseListenerDemo4(String title) { super(title); priceLabel=new JLabel(""); priceLabel.setBounds(5000, 5, 50, 20); String chartTitle = "Mouse Listener Demo 4"; String file="D:\\CL.txt"; OHLCDataset data2 = createPriceDataset(file); System.out.println(data2.getItemCount(0)); HighLowRenderer renderer1 = new HighLowRenderer(); renderer1.setTickLength(3); renderer1.setBaseToolTipGenerator(new StandardXYToolTipGenerator (StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT, new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00"))); renderer1.setSeriesPaint(0, Color.blue); DateAxis domainAxis = new DateAxis("Date"); NumberAxis rangeAxis = new NumberAxis("Price"); rangeAxis.setNumberFormatOverride(new DecimalFormat("$0.00")); rangeAxis.setAutoRange(true); rangeAxis.setAutoRangeIncludesZero(false); ChartColor chartColor=new ChartColor(0, 0, 0); XYPlot plot1 = new XYPlot(data2, domainAxis, rangeAxis, renderer1); plot1.getRangeCrosshairPaint(); plot1.setBackgroundPaint(Color.white); plot1.setDomainGridlinePaint(Color.magenta); plot1.setRangeGridlinePaint(Color.magenta); plot1.setRangePannable(true); plot1.setRangeCrosshairVisible(true); plot1.setRangeCrosshairValue(4000, true); plot1.setRangeCrosshairLockedOnData(true); plot1.setRangeCrosshairVisible(true); this.chart = new JFreeChart("", JFreeChart.DEFAULT_TITLE_FONT, plot1, false); chartPanel = new ChartPanel(this.chart); chartPanel.setPreferredSize(new java.awt.Dimension(1000, 500)); chartPanel.setMouseZoomable(true, false); chartPanel.addChartMouseListener(this); setContentPane(chartPanel); priceLabel.setBackground(Color.cyan); chartPanel.add(priceLabel); priceLabel.setVisible(true); priceLabel.setText(""); } private static OHLCDataset createPriceDataset(String filename) { // the following data is taken from http://finance.yahoo.com/ // for demo purposes... OHLCSeries s1 = new OHLCSeries(filename); try { BufferedReader in = new BufferedReader(new FileReader(filename)); DateFormat df = new SimpleDateFormat("MM/dd/yyyy"); String inputLine; in.readLine(); while ((inputLine = in.readLine()) != null) { StringTokenizer st = new StringTokenizer(inputLine, ","); Date date = df.parse(st.nextToken()); double open = Double.parseDouble(st.nextToken()); double high = Double.parseDouble(st.nextToken()); double low = Double.parseDouble(st.nextToken()); double close = Double.parseDouble(st.nextToken()); double volume = Double.parseDouble(st.nextToken()); s1.add(new Day(date), open, high, low, close); //t1.add(new Day(date), close); } in.close(); } catch (Exception e) { e.printStackTrace(); } OHLCSeriesCollection dataset = new OHLCSeriesCollection(); dataset.addSeries(s1); return dataset; } /** * Creates a sample dataset. * * @return The dataset. */ /** * Receives chart mouse click events. * * @param event the event. */ public void chartMouseClicked(ChartMouseEvent event) { int mouseX = event.getTrigger().getX(); int mouseY = event.getTrigger().getY(); System.out.println("x = " + mouseX + ", y = " + mouseY); Point2D p = chartPanel.translateScreenToJava2D( new Point(mouseX, mouseY)); XYPlot plot = (XYPlot) chart.getPlot(); Rectangle2D plotArea = this.chartPanel.getChartRenderingInfo().getPlotInfo().getDataArea(); ValueAxis domainAxis = plot.getDomainAxis(); RectangleEdge domainAxisEdge = plot.getDomainAxisEdge(); ValueAxis rangeAxis = plot.getRangeAxis(); RectangleEdge rangeAxisEdge = plot.getRangeAxisEdge(); double chartX = domainAxis.java2DToValue(p.getX(), plotArea, domainAxisEdge); double chartY = rangeAxis.java2DToValue(p.getY(), plotArea, rangeAxisEdge); this.chartPanel.setHorizontalAxisTrace(true); this.chartPanel.setVerticalAxisTrace(true); System.out.println("Chart: x = " + chartX + ", y = " + (int)chartY); priceLabel.setText(""+(int)chartY); } /** * Receives chart mouse moved events. * * @param event the event. */ public void chartMouseMoved(ChartMouseEvent event) { // ignore } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(String[] args) { MouseListenerDemo4 demo = new MouseListenerDemo4( "Mouse Listener Demo 4"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } 

}