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Why don't you just change them? You could either change the private members and methods to protected in TaskSeriesCollection.java, or you could simply incorporate the changes your talking about right into the class itself, without having to override or extend anything.

First of all, you will need to create a Gantt Chart from ChartFactory. But to do that, you will have to have a populated Task Series Collection, which has any number of Task Series, each of those which has Tasks themselves. My suggestion to you, since this is a school project and learning is encoura...

Well, here's a link to the javadoc:

http://www.jfree.org/jfreechart/javadoc/


which, IMO, is just as good.

It would be more useful to me if you post the actual code that creates the dataset. I believe that's where the problem can be found,

Yes, I've noticed this too. What I've done (which was quite a bit of work and included other things) was to get rid of the verticle axis labels, and to directly include the labels in the bar itself.

Post some code and we'll take a look. The subtask feature does work, so there must be something you're missing or doing incorrectly.

David- I guess that makes sense. Thanks for the help. To suite my needs, I changed the method getEndValue in TaskSeriesCollection like this (new code between /** ***/ comments): public Number getEndValue(Comparable rowKey, Comparable columnKey) { Number result = null; int row = getRowIndex(rowKey); ...

I've found a minor (but important) bug in the Gantt Chart: When a subtask is added that has a date out of range of any other regular, non-subtask task, it fails to appear. The timeline scale isn't made wide enough to include this subtask. Does anyone know where I could go (what class) to address the...

I also wanted to show singe date 'milestones', as well as lines between tasks that were dependent on each other. Here's what I did: I modified GanttRenderer.java, Task.java, TaskSeriesCollection.java, and GanttCategoryDataset.java appropriately, and also created my own class called Milestone.java. I...

Use subtasks.

Can you point me to where you commented on what needs to be rewritten?

Thanks