Search found 14 matches
- Wed Aug 18, 2004 8:42 pm
- Forum: JFreeChart - Stockmarket
- Topic: how to create graph in real time for monitoring
- Replies: 1
- Views: 6908
If you have purchased the developer's guide, there is a dynamic chart example in chapter 9 that monitors the JVM memory usage in real time. In short, you have to set the history count of a TimeSeries that you use in the Chart, and keep adding new points to the TimeSeries. The notification system in ...
- Wed Aug 18, 2004 5:46 pm
- Forum: JFreeChart
- Topic: Error occured while deploying on coldfusion application
- Replies: 6
- Views: 5854
- Mon Aug 16, 2004 6:25 pm
- Forum: JFreeChart - Stockmarket
- Topic: Converting XYDataset to TimeSeries
- Replies: 1
- Views: 8668
If you XYDataset has more than one series, then you could extract each series as a TimeSeries and then aggregate them together as a TimeSeriesCollection. I am assuming that the Date is stored as a value representing Time in Milliseconds. You could try the following: XYDataset dataset = yourClass.get...
- Mon Aug 16, 2004 6:06 pm
- Forum: JFreeChart
- Topic: Want JDBCCategoryChartDemo.java and JDBCPieChartDemo.java
- Replies: 3
- Views: 3662
- Mon Aug 16, 2004 6:01 pm
- Forum: JFreeChart
- Topic: Y Axis name question
- Replies: 3
- Views: 3018
- Mon Aug 16, 2004 5:32 pm
- Forum: JFreeChart - Stockmarket
- Topic: Easy fix hopefully
- Replies: 1
- Views: 6694
See
http://www.jfree.org/phpBB2/viewtopic.php?t=9576
Use SimpleDateFormat, and override the domain axis of the plot.
http://www.jfree.org/phpBB2/viewtopic.php?t=9576
Use SimpleDateFormat, and override the domain axis of the plot.
- Mon Aug 16, 2004 5:31 pm
- Forum: JFreeChart - Stockmarket
- Topic: How do I change the date format for the axis in TimeSeries ?
- Replies: 1
- Views: 11974
You could try using java.text.SimpleDateFormat: String dateFormat = "yyyy/MM/dd HH:mm"; Or if you just want the date String dateFormat = "dd"; Then override the dataformat in the horizontal axis: XYPlot plot = chart.getXYPlot(); DateAxis axis = (DateAxis) plot.getDomainAxis(); axis.setDateFormatOver...
- Mon Aug 16, 2004 5:25 pm
- Forum: JFreeChart - Stockmarket
- Topic: Percentage y-ticks for yield-curve
- Replies: 1
- Views: 8428
- Mon Aug 16, 2004 5:19 pm
- Forum: JFreeChart - Stockmarket
- Topic: how to save chart ?
- Replies: 1
- Views: 6907
Normally applets cannot write to files on the client's computer due to security reasons, but signing the applet may work.
http://java.sun.com/sfaq/#read
Once you have access to write files, you could use ChartUtilities.saveChartAsJPEG or saveChartAsPNG.
http://java.sun.com/sfaq/#read
Once you have access to write files, you could use ChartUtilities.saveChartAsJPEG or saveChartAsPNG.
- Mon Aug 16, 2004 5:13 pm
- Forum: JFreeChart - Stockmarket
- Topic: scalability issues with server side chart generation
- Replies: 4
- Views: 17625
scalability issues with server side chart generation
Hi, I posted a similar thread on the general forum, but realized that stockmarket charting may actually be more likely to face the issues I am encountering. I am currently developing a web application that displays statistics of computers such as cpu and memory usage. The web application runs on a s...
- Mon Aug 16, 2004 4:48 pm
- Forum: JFreeChart
- Topic: server side pre-generation and caching of charts
- Replies: 0
- Views: 1905
server side pre-generation and caching of charts
Hi, I am currently developing a web application that displays statistics of computers such as cpu and memory usage. The web application runs on a server, and provides stats about many other computers by getting the information from a database. Users of the web app can choose to view the stats at dif...
- Wed Aug 11, 2004 6:06 pm
- Forum: JFreeChart
- Topic: order of series in the legend.
- Replies: 6
- Views: 6953
- Tue Aug 10, 2004 6:38 pm
- Forum: JFreeChart
- Topic: order of series in the legend.
- Replies: 6
- Views: 6953
order of series in the legend.
Currently when I use the StackedXYAreaChart, the area first series is displayed at the bottom of the chart, and the legend also shows the chart color of the first series on the left most position. Eg. Chart: C B A Legend: A B C Is there a way to make it such that the legned will start showing series...
- Tue Aug 10, 2004 6:33 pm
- Forum: JFreeChart
- Topic: StackedXYAreaRenderer + TimeSeriesCollection => Exception
- Replies: 9
- Views: 13656