Comments on: Area Chart – Invert if Negative

By: Jon Peltier

Jon Peltier — Thu, 16 Apr 2009 12:40:29 +0000

I've never used JFreeCharts, but Google informs me there is a forum at JFreeChart - General.

By: asad naqvi

asad naqvi — Thu, 16 Apr 2009 12:14:37 +0000

hi,
i have a web site designed in which i have to plot dynamic charts from the data that is also going to be sent to it dynamically from an external artificially intelligent instrument. the graph has successfully been plotted using jfree charts but now i have to use the same data to plot the graph in x,-y co-ordinates instead of the usual x,y co-ordinates i.e. the origin should be on top with the y axis pointing downwards. can anyone help me out with this?

By: Kathryn Lambkin

Kathryn Lambkin — Wed, 15 Apr 2009 07:52:14 +0000

Thanks Jon,
I found your forum post mde last year saying getting this to work was near on impossible
http://www.eggheadcafe.com/conversation.aspx?messageid=31756823&threadid=31750427
Seems you didn’t give up on that challenge!
Thanks for a great workaround to a Microsoft flaw.
Kathryn

By: Random

Random — Tue, 03 Mar 2009 22:19:32 +0000

I was searching eveywhere to find out how to create a positive and negative bar chart, and i found this site. It was really useful and helped me to figure out how to work excel in this way. I recomend this site to anyone that wants to create these sorts of graphs.

Thank you for putting this on the web, it really helped with completing my coursework.

By: Matt

Matt — Mon, 02 Feb 2009 10:42:23 +0000

Every time Mr Google brings me back here, and every time it blows my mind! Keep up the good work.

By: Jon Peltier

Jon Peltier — Sat, 29 Nov 2008 22:52:16 +0000

Keith -

Invert if negative? in a surface chart, the color of a region is already dependent on value. It’s a matter of formatting the ranges the way you want each value to be represented.

By: Keith

Keith — Sat, 29 Nov 2008 17:55:58 +0000

I have tried to do the same thing to 3-D surface charts but with no luck. Any ideas?

By: Jon Peltier

Jon Peltier — Tue, 17 Jun 2008 10:25:39 +0000

Pretty slick!

By: derek

derek — Tue, 17 Jun 2008 07:38:54 +0000

Here's a tidied-up version of the general "crossing any two lines" method, with RAND() data. Psychedelic shapes!

By: Jon Peltier

Jon Peltier — Mon, 16 Jun 2008 22:01:10 +0000

Derek – It should support a picture, if you use the proper html. Give me the link and I’ll include it in the original comment.

I did post a follow-up to your first comment, but probably I forgot to submit it before navigating away.