Search found 50 matches
- Wed Apr 02, 2008 9:13 pm
- Forum: JFreeChart
- Topic: Array of Charts?
- Replies: 2
- Views: 3042
Array of Charts?
I am plotting data in two dimensions, to get a sense of the distribution and correlation of values. I have two benchmark series for which I get the same kind of data. The real objective is to be able to compare the distribution of values for the object of interest against the distributions of the va...
- Thu Mar 13, 2008 10:05 pm
- Forum: JFreeChart
- Topic: How do I control the width of the bars in a bar chart?
- Replies: 2
- Views: 3213
- Thu Mar 13, 2008 9:00 pm
- Forum: JFreeChart
- Topic: How do I control the width of the bars in a bar chart?
- Replies: 2
- Views: 3213
- Thu Mar 13, 2008 8:49 pm
- Forum: JFreeChart
- Topic: How do I control the width of the bars in a bar chart?
- Replies: 2
- Views: 3213
How do I control the width of the bars in a bar chart?
I "successfully" created a bar chart, based on three time series. However, the time series span a period of 8 years, and the series in question include one observation each per quarter. The bars produced appear as paper thin lines over the date of the beginning of the quarter. How do I get the three...
- Mon Mar 10, 2008 9:32 pm
- Forum: JFreeChart
- Topic: NullPointerException in renderer
- Replies: 0
- Views: 1567
NullPointerException in renderer
I am using the latest version of jFreeChart, in a servlet. For quite a while, all has been well. But now, i am trying something a little different and am thwarted by this exception. Here is the relevant part of the trace (from the Tomcat 6 log): SEVERE: Servlet.service() for servlet ChartMaker threw...
- Fri Jan 11, 2008 2:10 am
- Forum: JFreeChart
- Topic: inheritance hierarchy for dataset classes
- Replies: 4
- Views: 9511
OK, I found the problem, and there is a logical capability missing from TimeTableXYDataset. Consider the following from the manual (53.21 TableXYDataset); "This interface is an extension of the XYDataset interface. By implementing this interface, a dataset is declaring that all series share a common...
- Thu Jan 10, 2008 11:43 pm
- Forum: JFreeChart
- Topic: inheritance hierarchy for dataset classes
- Replies: 4
- Views: 9511
inheritance hierarchy for dataset classes
I just got hit by the following exception: java.lang.ClassCastException: org.jfree.data.time.TimeSeriesCollection cannot be cast to org.jfree.data.xy.TableXYDataset Is there a reason org.jfree.data.time.TimeSeriesCollection is not derived from org.jfree.data.xy.TableXYDataset? I would have expected ...
- Thu Jan 10, 2008 6:33 pm
- Forum: JFreeChart
- Topic: How do I manage a legend in a combined chart?
- Replies: 3
- Views: 3016
- Thu Jan 10, 2008 5:36 pm
- Forum: JFreeChart
- Topic: How do I manage a legend in a combined chart?
- Replies: 3
- Views: 3016
How do I manage a legend in a combined chart?
I am creating a combined chart (for time series data) that will use several stacked area charts (like that in StackedXYAreaChartDemo1) and a step chart (like XYStepRendererDemo1). But the values in the different charts are related. The first series in chart one is connected to the first series in al...
- Sun Jan 06, 2008 6:54 pm
- Forum: JFreeChart
- Topic: What jars need to be included in a web application project?
- Replies: 4
- Views: 3953
- Sun Jan 06, 2008 2:17 pm
- Forum: JFreeChart
- Topic: What jars need to be included in a web application project?
- Replies: 4
- Views: 3953
- Sun Jan 06, 2008 6:51 am
- Forum: JFreeChart
- Topic: What jars need to be included in a web application project?
- Replies: 4
- Views: 3953
What jars need to be included in a web application project?
I ran into some problems, I'd assumed were NetBeans related, but on investigation I learned at least part of the problem is the jars distributed with jFreeChart. I'd simply added all the jars in the jFreeChart 'lib' directory to the project. That worked fine with standalone programs, but that direct...
- Tue Dec 04, 2007 8:25 pm
- Forum: JFreeChart
- Topic: How best to improve zooming capability in time series chart
- Replies: 3
- Views: 2989
Thanks David. Trial and error shows me I can shrink the domain. But I am having a little trouble expanding it after I contracted it. I don't know if it is my chart code or my JSpinner code. But when I go to expand the domain, the spinner stops responding. Here is my spinner code: javax.swing.Spinner...
- Tue Dec 04, 2007 6:09 pm
- Forum: JFreeChart
- Topic: How best to improve zooming capability in time series chart
- Replies: 3
- Views: 2989
How best to improve zooming capability in time series chart
I am finding the current interface for zooming insufficient. What I want to do is add a pair of JSpinner controls to a form, with bounds set to the maximum and minimum dates in the time series (collection). The aim is to zoom the TSchart so that the lower and upper dates displayed in the chart corre...
- Tue Dec 04, 2007 5:56 pm
- Forum: JFreeChart
- Topic: jFreeCharts with JSF
- Replies: 5
- Views: 7657
1) You don't have to use Chart Creator. It is best seen as an example of what to do. 2) take a look at ICEfaces, from ICEsoft. They support charts (and their library is an excellent extension of JSF technology anyway). They have also provided an example, based on chartcreator, you could learn from. ...