Search found 32 matches

by Tom
Tue Aug 19, 2008 9:55 am
Forum: JFreeChart
Topic: Tooltips for Subtasks in Gantt Chart
Replies: 2
Views: 6002

Hey, I figured out a way to do this by extending the CategoryIntervalTooltipRenderer and adding a field to it so you can set the number of the subtask (which is the Problem because the TooltipGenerator does not know the actual item). Here is the code, its just a hack, but maybe the approach is helpf...
by Tom
Fri Feb 01, 2008 11:21 am
Forum: JFreeChart
Topic: Problem while plotting huge data, pls help, Urgent.....
Replies: 6
Views: 10409

If you add all Datapoints at once and don't need to update the Chart, set notifications off before inserting data, because a DatasetChangeEvent is fired for each and every Datapoint that is added. For example, you can override the addValue-Method and comment out the last line fireDatasetChanged. Aft...
by Tom
Fri Feb 01, 2008 10:56 am
Forum: JFreeChart
Topic: Multiple category datasets of different size
Replies: 13
Views: 21110

Still doesn't work :-(
by Tom
Wed Jan 30, 2008 1:32 pm
Forum: JFreeChart
Topic: Multiple category datasets of different size
Replies: 13
Views: 21110

I just saw that JFreeChart 1.0.9 was released, is it working now?
by Tom
Mon Jun 25, 2007 10:31 am
Forum: JFreeChart
Topic: PROBLEM with dates from database in a table
Replies: 5
Views: 6088

Dont know if that helps but did you notice that the second calendar has summertime on and the first does not? thats why the second time is one hour late... don't know why that happens, but maybe you schould review your code and set the
locales properly...

Tom
by Tom
Mon Jun 25, 2007 9:48 am
Forum: JFreeChart
Topic: Tick Marks on the CategoryAxis
Replies: 1
Views: 3110

Tick Marks on the CategoryAxis

Hi Guys,

I have many categories on a CategoryAxis and i want them to have tickmarks. The CategoryAxis brings some methods to switch them on and customize their length, but none of them work. Do these mehtods not work in general for the CategoryAxis, or am I forgetting something?

TIA

Tom
by Tom
Mon Jun 11, 2007 1:01 pm
Forum: JFreeChart
Topic: Toolitps with Escape-Characters
Replies: 2
Views: 5411

Toolitps with Escape-Characters

Hello, I have a tricky Problem. I'm displaying charts on a jsp-Site using the imagemap feature from chartutilities. It works fine as long as there is no text like (Fish "Tuna") used for a category. If so, the OverLIBToolTipTagFragmentGenerator as well as the StandardToolTipTagFragmentGenerator do no...
by Tom
Thu May 10, 2007 2:51 pm
Forum: JFreeChart
Topic: Problem: Overlapping in Bar Chart when multiple datasets
Replies: 9
Views: 17767

Just saw the LayeredBarChart in the demo... That should solve the problem, too.

Tom
by Tom
Wed May 09, 2007 12:20 pm
Forum: JFreeChart
Topic: Problem: Overlapping in Bar Chart when multiple datasets
Replies: 9
Views: 17767

I'm using this workaraund, too, because I'm using a Barchart with multiple datasets and want them printed side by side, because you cannot see smaller bars when a bar of higher value is rendered before. But this workaround implies that I'm not able to display more than one series per dataset. But I ...
by Tom
Tue Mar 06, 2007 11:28 am
Forum: JFreeChart
Topic: Major Minor Ticks for NumberAxis
Replies: 3
Views: 6621

Major Minor Ticks for NumberAxis

Hi @everybody, im using a chart with a numberAxis as y-Axis. I need this axis to display major ticks with labels and, minor ticks without labels. In addition to that, I need (if possible) a different (dashed) gridlineStroke for the gridlines at the minor ticks. Any ideas how to achieve that? TIA, Tom
by Tom
Tue Feb 27, 2007 7:45 pm
Forum: JFreeChart
Topic: BarRenderer3D wrong overlapping ... bug?
Replies: 14
Views: 28440

yeah seems so... its just eyecandy, but it would have been nice to have that effect, this renderer looks real good. I haven't really understood why this doesn't work. What is the Problem, maybe we can patch it? Maybe you can put it on your List for 1.05 ? ;-) Can you tell me an approach to fix that,...
by Tom
Tue Feb 27, 2007 3:43 pm
Forum: JFreeChart
Topic: SQL and JFreechart barchart
Replies: 4
Views: 11373

I just had an issue with a 3d BArchart and wrote a testcase for it. Have a look here. http://www.jfree.org/phpBB2/viewtopic.php?t=20430 For your needs, i would consider to use just one dataset. If you look at the addValue method you can see how the chart is filled with data. The null series are used...
by Tom
Tue Feb 27, 2007 10:31 am
Forum: JFreeChart
Topic: how to create bar chart for zero or above value
Replies: 3
Views: 7502

i think its working with this

axis.setRangeType(RangeType.POSITIVE);
by Tom
Tue Feb 27, 2007 10:30 am
Forum: JFreeChart
Topic: how to create bar chart for zero or above value
Replies: 3
Views: 7502

i think its working with this

axis.setRangeType(RangeType.POSITIVE);
by Tom
Tue Feb 27, 2007 10:26 am
Forum: JFreeChart
Topic: how to create bar chart for zero or above value
Replies: 3
Views: 7502

I think you can try to set the autorange of the range axis off.

axis.setAutoRange(false)

and specify the range that is used yourself. That could help because the axis istn't determining the range by itself anymore.

Tom