Search found 11 matches

by Mercer
Tue Sep 12, 2006 5:02 pm
Forum: JFreeChart
Topic: To Those Who Use JFreeChart for Dynamic Plotting/Large Sets
Replies: 100
Views: 262755

Thank you for your reply but I got to say I missed the point when you say WITHOUT notification do you mean calling the TimeSeries.setNotify(false) or am I missing the plot, please can you clarify for me please. Thanks alot Brian This one's easy to answer... so i will. What I mean is when you add() ...
by Mercer
Tue Sep 12, 2006 4:56 pm
Forum: JFreeChart
Topic: To Those Who Use JFreeChart for Dynamic Plotting/Large Sets
Replies: 100
Views: 262755

Ahh crap. Sorry guys, I COMPLETELY forgot that things like TimeTag are intrinsic code for us here. I'm so used to using them, I just assumed EVERYONE had them. Timetags are a way to store time in a specific format used by us. Conversion between Median Julian Time and Milliseconds-since-some-date kin...
by Mercer
Thu Aug 31, 2006 1:50 pm
Forum: JFreeChart
Topic: To Those Who Use JFreeChart for Dynamic Plotting/Large Sets
Replies: 100
Views: 262755

Welll, my first thought is that your ChartFactory doesn't create a FastXYPlot, it creates a regular XYPlot. Cant' cast an object to something lower in the hierarchy, and FastXYPlot extends XYPlot. Otherwise, why use TimeSeries? A lot of the efficiency was gained in making a very simple streamlined D...
by Mercer
Wed Aug 30, 2006 7:42 pm
Forum: JFreeChart
Topic: To Those Who Use JFreeChart for Dynamic Plotting/Large Sets
Replies: 100
Views: 262755

You guys don't have it yet? damn... I sent the file off to BOTH of the two gentlemen who volunteered it. I'll send it again to both the emails I have been sent privately AND I'll take David up on his offer to post it on SourceForge. Sorry bout that folks, not sure what happened there. Gimme a few ho...
by Mercer
Mon Aug 28, 2006 7:14 pm
Forum: JFreeChart
Topic: To Those Who Use JFreeChart for Dynamic Plotting/Large Sets
Replies: 100
Views: 262755

The zipped file of all the fast classes and the renderes and stuff is something like 80k or so, so I can't IMAGINE that theres so much interest that a limit like that would come into play. If you can provide me with an email address, I'll just send the file off to you and you can then post the url o...
by Mercer
Fri Aug 25, 2006 7:53 pm
Forum: JFreeChart
Topic: To Those Who Use JFreeChart for Dynamic Plotting/Large Sets
Replies: 100
Views: 262755

To Those Who Use JFreeChart for Dynamic Plotting/Large Sets

An Open Letter to Those Who Use JFreeChart for Dynamic Plotting and Large Datasets also titled What We Have Learned! Introduction: The following long post is directed to all those people (just like us) who use these forums to try and figure out JFreeChart. Let me rephrase: ...to try and figure out h...
by Mercer
Mon Aug 14, 2006 7:18 pm
Forum: JFreeChart
Topic: Reducing huge dataset
Replies: 9
Views: 17419

Well if you're truly talking about only 100,000 or so points, 5 minutes seems particularly long. 2 possible solutions. 1) The Element List (may not be QUITE the right name) that is created in teh actual renderer creates a huge array of rectangle2D's that pop up tooltips when your mouse hovers over a...
by Mercer
Mon Aug 14, 2006 3:08 pm
Forum: JFreeChart
Topic: Reducing huge dataset
Replies: 9
Views: 17419

The number of points you're talking about is no problem. Just don't add them all with notification turned on (a true/false flag in the add method). THAT'S what takes all the time with large series. Add with notification = false, and if a point comes thats out of range, add that point WITH. If you're...
by Mercer
Mon Aug 14, 2006 3:04 pm
Forum: JFreeChart
Topic: Huge Time series
Replies: 3
Views: 7048

A couple of tricks to reduce memory and such things. 1) Add your points without notification (theres a true/false flag on one of the adds) then add the last one WITH notification. That notification on the last point will go through all the previous points and fix things like range/domain etc. 2) Eli...
by Mercer
Mon Jun 12, 2006 6:01 pm
Forum: JFreeChart
Topic: how to increase the size of chartpanel Dynamically
Replies: 11
Views: 14521

This respons is based on my expereince, others can correct me if I'm off. The chartPanel is used to decide the physical size to creat the JFreeChart in. If your chartPanel is 200 pixels by 200 pixels, then the JFreeChart will be created (with axises, legends, titles etc) within that size. If you are...
by Mercer
Mon Jun 05, 2006 7:13 pm
Forum: JFreeChart
Topic: A question: XYPlot Zoom vs CombinedDomainXYPlot Zoom
Replies: 0
Views: 2634

A question: XYPlot Zoom vs CombinedDomainXYPlot Zoom

Hi, just a question regarding the mouse-zoom abilities. It's not a question of getting it to work, more of a question regarding whether this is the way it was intended to work or not. In the course of our application, both XYPlots and CombinedDomainXYPlots are used (as well as others, of course). Wh...