Search found 46 matches

by nikster
Mon Aug 09, 2004 9:06 am
Forum: JFreeChart
Topic: Roadmap...
Replies: 38
Views: 71135

user case for multiple threads

karthicks, i think you want multi threaded apps only when you have one application with multiple users. your app - runs on a server - multiple users can log in at the same time - multiple users can look at and modify data this is when you get multiple threads. if you just have a web app to look at s...
by nikster
Thu Jul 15, 2004 11:24 am
Forum: JFreeChart
Topic: Multiple Axis Properties?!
Replies: 3
Views: 3981

Re: procedure...

Anonymous wrote: it just may happen that i need this to work before you get around to doing it. in that case, what is the recommended procedure so we can coordinate and i can do it and send a patch?
that was me, forgot to log in.
by nikster
Tue Jul 06, 2004 8:58 am
Forum: JFreeChart
Topic: Multiple Axis Properties?!
Replies: 3
Views: 3981

Multiple Axis Properties?!

is there a way to set axis properties (range, etc) for the other axis? in MultipleAxisDemo1, when i right-click and select properties, i get the properties for one range axis and one domain axis, but not the other range and/or domain axes.
or is this a bug?
by nikster
Tue Jul 06, 2004 8:38 am
Forum: JFreeChart
Topic: about JDBCXYDataset,why is there no chart displayed?
Replies: 4
Views: 6504

also, this:
catch (Exception e) {}
is bad style. it ensures you won't know if something goes wrong somewhere (e.g. if you can't write the image for some reason).

change it to
catch (Exception e) {
e.printStackTrace();
}
- at the very least you will know when you have trouble.
by nikster
Tue Jun 29, 2004 11:38 am
Forum: JFreeChart
Topic: ContourPlot and XYAnnotation
Replies: 0
Views: 2167

ContourPlot and XYAnnotation

Hello, I noticed ContourPlot can still not display any XY annotations. I posted a patch for that a long while ago (for version 0.9.15). Is it possible to put this improvement into the next release? i think it should be in there before 1.0 because it provides all XY plots with XYAnnotations. it's pre...
by nikster
Fri Jun 25, 2004 3:11 pm
Forum: JFreeChart
Topic: Roadmap...
Replies: 38
Views: 71135

What would server side code be doing with charts? Surely they are inherently client-side. the server generates pngs and jpegs which are then served to a website. instead of drawing charts client-side, you generate them as images server side. instead of drawing them on the screen, they are drawn int...
by nikster
Tue Jun 22, 2004 4:22 pm
Forum: JFreeChart
Topic: Roadmap...
Replies: 38
Views: 71135

point 1: don't post as "Guest". it lends more credibility to your arguments if we know who you are. point 2: i agree that changing APIs of released software is evil. this is why the API has not been frozen yet, and why 1.0 has not been released. because we still need to change the APIs to make it be...
by nikster
Tue Jun 22, 2004 2:29 pm
Forum: JFreeChart
Topic: Roadmap...
Replies: 38
Views: 71135

1) i am pretty happy with the pace of development. i would be happy if we wait with 1.0 until several large scale changes that are currently underway are finished - such as full support for efficient implementation of large datasets. 2) there is no need to upgrade to each new verison. just use the l...
by nikster
Mon Jun 21, 2004 1:29 pm
Forum: JFreeChart
Topic: ExceptionInInicializerError
Replies: 15
Views: 19506

i have to apologize for my tests where not performed in an clean environment. the problem for not beeing able to use the jfreechart-jar file seems to be that i had my source files in a path which contained a '!' in an directory name. since java tries to resolve sources like images, property-files e...
by nikster
Tue May 11, 2004 4:49 pm
Forum: JFreeChart
Topic: MultipleAxisDemo1, properties for RangeAxis 1..N
Replies: 0
Views: 2185

MultipleAxisDemo1, properties for RangeAxis 1..N

hello,

in the chart properties panel for MultipleAxisDemo1, i can set the properties only for the primary range axis - not for any of the others.

is there a way to display the others, too? is this being implemented in the next version? should i implement it?

tx...
by nikster
Tue May 11, 2004 11:12 am
Forum: JFreeChart
Topic: remove last axis label
Replies: 3
Views: 4676

maybe Axis.setLabel(null)?

what is "just the last axis label"?
by nikster
Tue May 11, 2004 11:09 am
Forum: JFreeChart
Topic: How to change the background color of the tooltip
Replies: 2
Views: 4016

hello, this is not really a JFreeChart question, rather a general Java question. JFreeChart just uses the ToolTip methods built into Swing. you need to create your own subclass of ChartPanel and override createToolTip(..). see there: http://java.sun.com/j2se/1.4.2/docs/api/javax/swing/JComponent.htm...
by nikster
Mon May 10, 2004 2:33 pm
Forum: JFreeChart
Topic: sun.dc.pr.PRException: endPath: bad path
Replies: 7
Views: 15590

Sun thinks it's related to this (rather bad) bug:
http://developer.java.sun.com/developer ... 55500.html
by nikster
Thu May 06, 2004 11:42 am
Forum: JFreeChart
Topic: Fast plotting
Replies: 15
Views: 20517

well, i am not sure of that. i would think that if isMissing() returns true, the getY() value returned is irrelevant (e.g. undefined). isNaN() is not really the same in this respect. we want to find out when the value is missing (in order to be compatible with the meaning of null in getYValue())......
by nikster
Thu May 06, 2004 10:28 am
Forum: JFreeChart
Topic: Fast plotting
Replies: 15
Views: 20517

I just had a thought - the isMissing() method is redundant. Its purpose is only to determine the meaning of getY() when it returns Double.NaN (which is a double primitive)...is it really 'not a number' or is it equivalent to 'null' (a missing or unknown value)? well, i am not sure of that. i would ...