How to display volume in the domain crosshair and set the crosshair programmatically?
来源： https://stackoverflow.com/questions/64148281/how-to-display-volume-in-the-domain-crosshair-and-set-the-crosshair-programmatic
jfreechart
JFreechart chart with Time from SQL Database
来源： https://stackoverflow.com/questions/63917976/jfreechart-chart-with-time-from-sql-database
How to show cross lines and red color for price drop in JFreeChart?
来源： https://stackoverflow.com/questions/64106159/how-to-show-cross-lines-and-red-color-for-price-drop-in-jfreechart
Query executed twice (by error) in Java with unwanted values
来源： https://stackoverflow.com/questions/63956674/query-executed-twice-by-error-in-java-with-unwanted-values
Bar chart with exact value printed on top of each bar
问题 Is there a way to accomplish the following in JFreeChart? I am specifically asking about the elegantly printed numbers at the top of each bar. In this particular specimen it is easy to guess the values but such a feature would be useful if the y-axis run in the thousands or more. In such a case, the length of the bar wouldn't much help to discover the exact value. 回答1: Yes, it is possible. You need to specify ItemLabelPosition in CategoryItemLabelGenerator . For example: renderer
Bar chart with exact value printed on top of each bar
问题 Is there a way to accomplish the following in JFreeChart? I am specifically asking about the elegantly printed numbers at the top of each bar. In this particular specimen it is easy to guess the values but such a feature would be useful if the y-axis run in the thousands or more. In such a case, the length of the bar wouldn't much help to discover the exact value. 回答1: Yes, it is possible. You need to specify ItemLabelPosition in CategoryItemLabelGenerator . For example: renderer
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JFreeChart is plotting data but not drawing linear regression
问题 I have used JFreeChart to represent my array of x and y . These arrays get plotted just fine, however theregression line is broken and never gets drawn. All the functions work such as plotting values except drawinputpoint and drawregressionline function. Somehow these two never work. I don't mind drawwinginputpoint a lot, but I like to be able to drawregressionline . My array has correct data, so not sure what is the issue. I am importing my arrays data into dataset in createDateSetFromFile
How to create “please wait” Swing dialog while component paints
问题 Still relatively new to Swing but after a couple of hours of search, I couldn't find the answer online, hence this post (sorry if already answered and I overlooked it). I'm using JFreeChart in a Swing application. Some charts are relatively heavy (180k data points) and the JFreeChart's ChartPanel needs ~6 seconds to do its first paintComponent(). Hence I would like to show a "Please wait" message in a dialog while the component paints (no need to show progress with a SwingWorker). I tried to
How can I run jfree chart as applet?
问题 I dont have much understanding in java but want the following code to run as applet. Request sincere help on this. Can anyone help me running this code as applet? This is Jfree chart and i want to run it as an applet. Suggestion please. package org.jfree.chart.demo; import java.awt.Color; import java.text.SimpleDateFormat; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart