jfreechart

[b]一． 下载与环境配置[/b] 此最新版本为 1.0.13 解压jfreechart-1.0.13.zip 将lib目录下的jfreechart-1.0.13.jar 、jcommon-1.0.16.jar 复制到工程 WEB-INF\lib 文件夹中 [b]二． 配置[/b] 我是用Struts1.2开发的。 在工程的web.xml 文件中添加 <servlet> <servlet-name>DisplayChart</servlet-name> <servlet-class>org.jfree.chart.servlet.DisplayChart</servlet-class> </servlet> <servlet-mapping> <servlet-name>DisplayChart</servlet-name> <url-pattern>/DisplayChart</url-pattern> </servlet-mapping> [b]三． 生成柱形图[/b] 新建个Action 最好是继承DispatchAction public ActionForward toBarPic(ActionMapping mapping, ActionForm form, HttpServletRequest request, HttpServletResponse response

After adding the Maven jFree dependency to my existing application, I'm not able to execute the created jar. The only error message I get is the following: java -jar target/com.company.product-1.0.0-SNAPSHOT.jar Error: Invalid or corrupt jarfile target/com. company.product-1.0.0-SNAPSHOT.jar The complete pom.xml looks like this: <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0<

I am trying to make a chart that is embedded specifically in a panel on a JInternalFrame ; it is a pie chart from the library JFreeChart . I want to embed the chart on a panel which goes by the variable name jpPaneles , but it has proven to be impossible. This is really crucial for my project, so if anyone has the time to help me out, I would greatly appreciate it. I am working in NetBeans GUI editor. Here is the code and you can see I try to add frame1 to a panel. import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartFrame; import org.jfree.chart.JFreeChart; import org.jfree.chart

I am trying to through a linear regression line through individual separate clusters of data that share the same slope. However, though I have successfully plotted differing colors for the points themselves and graphed those successfully, my attempt at the line is not working. Earlier I tried a hashset that ran through calling out the clusters by colors but that caused issues with the order in which the lines came in. In this attempt, I tried to link the clusters through a number attachment and then call the lines based on that. The first part of the code isn't really relevant as I didn't

Here is code based on @trashgod's example about real time plotting: import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.text.SimpleDateFormat; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.Timer; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.data.time.DynamicTimeSeriesCollection; import org.jfree.data.time.Second; /** * @see https://stackoverflow.com/a

I have the following chart: Now my problem is I want to open a new chart containing the information for Linux OS when a user clicks on Linux portion of chart, shown in red. I have tried this: //check if Linux OS is clicked on chart... if("Linux".equals(chartMouseEvent.getEntity().getToolTipText())) { //open new chart having the information for Linux } But I think there may be some better alternate to do the same job. So please help if you know how to achieve this. ChartEntity is a good choice, but getToolTipText() is not the only resource available. The getURLText() method is also handy, using

How can i draw scatter plot of datas in mysql database table using jfreechart in java. I have used swing library. Any link would be helpful. I searched google but couldnot find a understanding solution. If you have got code just provide me. Actually i did do barchart and plot it using jfreechart. The code i used for my barchart is here. Here display3 function displays the barchart. How can i modify it to display scatter plot? public void display3() throws SQLException, ClassNotFoundException{ DefaultCategoryDataset dataset = new DefaultCategoryDataset(); String JDBC_DRIVER="com.mysql.jdbc