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Hi, I want to display a chart legend that should look like the one in the image below. Precisely, I want to group certain bars and give them a common name. Is JFreeChart able to display such a graph? Any code suggestions are highly welcome. Regards Stephan http://s2d1.turboimagehost.com/t/906966_gro...

Hi,

although this thread is very old I still hope to get an answer.
Could you (jleech) or anyone else post an example on who to apply the patterns onto a chart.

Moreover I'd like to know if it is possible to apply different patterns for each bar in a barchart.

Thanks for your answers.

Hi,

since I've got a very similar problem (see http://www.jfree.org/phpBB2/viewtopic.php?t=23421) I wanted to know if you've found a solution to your problem.

thanks a lot

Can anyone give me a hint where to start changing the code so I get the desired output?

Is it right that I need to manipulate the BarRenderer class?

Thanks for your help
Stephan

Hi, I need to display a barchart using a dataset like the one shown below: DefaultStatisticalCategoryDataset dataset = new DefaultStatisticalCategoryDataset(); dataset.add(10, 1, "S1", "C1"); dataset.add(11, 1, "S2", "C1"); dataset.add(12, 1, "S3", "C1"); dataset.add(9, 1, "S4", "C2"); dataset.add(8...

Hi, I've a problem drawing ticks on my chart. At the moment it looks like this: http://students.fhs-hagenberg.ac.at/bin/bin02023/graz/mine.jpg but it should look like this: http://students.fhs-hagenberg.ac.at/bin/bin02023/graz/ideal.jpg Below is the code that I've tried so far: JFreeChart myLineGrap...

ok I see Now I'm able to create that image map and even send it via DWR to my JSP page. The only problem I'm having right now is to include this javascript text into my html part. My design does not allow me to reload this page and I need a fresh imageMap for each newly loaded image. Does anyone kno...

ok thanks, now the part in my ChartViewer Servlet which creates the image looks like this: // send the picture BufferedImage buf = chart.createBufferedImage(800, 450, info); OutputStream out = response.getOutputStream(); PrintWriter writer = new PrintWriter(out); ChartUtilities.writeBufferedImageAsP...

Hi, I'm using JFreeChart to create a chart for my Web Application. I've been successfully using it for quite some time but now I'm stuck with adding tooltip support. I'm using the following process to create an image: User clicks -> javascript calls a DWR function -> Server Code is executed, JFreeCh...

My fault sorry - posted the answer to the wrong thread. My problem is, that the legend area gets to big if I have a lot of series added to my XYSeries. I wanted to know if it's possible to limit the amount of series which are displayed in the legend or define the size of the legend, i.e. give it a f...

good you mention this - I've the same problem.

Did you find a solution to this?

regards
Stephan

yep cool that solves the problem.

many thanks
stephan

well, first thanks for your help, now it works almost perfect. there is just one little problem left: right now when the user clicks on a cell of the grid, I send a message via DWR to a session bean, which stores the correct chart in the session. In my img tag I use a servlet to display the graph, w...

Well yes it helps a little bit. But the thing is I don't know how I should return an image from my session bean back to my jsp site. I thought I can somehow convert that byte[] into an image, but as it looks like I cant. So I need to either send back an image or store it in a session or something li...

Hi, Here is my problem: I have a JSP page where I want to display a chart (on top) and a grid (on the bottom). When the user clicks on a cell of that grid the chart should change according to the selected cell. In order to maintain some performance I don't want to submit or refresh the whole page. N...