multiple lines in the same color

[Jenny Wei]

Hi,

I have been using JFreechart for sometime and I think it is a great application for data visualization. Recently I need to implement some new features, which I was not able to realize using JFreechart.

1) I need to display a number of different lines (eg. 2000), those lines are divided into several groups, each group has certain number of lines (eg. 3 groups, 1st 1000 lines, 2nd 500 lines, 3rd 500 lines). The lines in the same group are displayed with same color and shape for data points.

I just can't find a good dataset to represent the data. In XYDataset, each serie only has one line. I was thinking of using Overlaid plot, with each group of lines in a subplot. Then in each subplot, each line is in one serie and set the series color the same. Is there any better ways to do it?

2) I need to show error bars for each data point in the line chart. I am thinking of using your highlow dataset, but currently highlow plot is scatter plot only, not in line. Is there any way to show error bar on each data point in line graph using the current JFreeChart?

Thanks very much for this wonderful open source tool. Thanks for the help in advance.


Regards,

Jenny

[David Gilbert]

Hi Jenny,

I'm not completely sure what you are describing. What does your data represent? That will help me to understand...

Regards,

Dave Gilbert