Search found 10 matches

by bfry5282
Sun Jan 15, 2006 4:19 pm
Forum: JFreeChart - Stockmarket
Topic: y axis last price value highlighted?
Replies: 3
Views: 13428

Anybody have guidelines on creating a subclass of an axis renderer which would be able to highlight a specific price level, which I would always set to the last price?

In trading applications this is a common technique.
by bfry5282
Fri Dec 30, 2005 9:14 pm
Forum: JFreeChart
Topic: Highlight a y price axis?
Replies: 1
Views: 2399

Highlight a y price axis?

In a time/price chart, the y axis is usually price. I have seen JFreeChart which highlights the last price value in the chart, on the y axis itself. I have a complex realtime JFreeChart futures trading application ZoneTrader, in which I would like to highlight or label the current value on multiple ...
by bfry5282
Fri Dec 30, 2005 9:07 pm
Forum: JFreeChart - Stockmarket
Topic: y axis last price value highlighted?
Replies: 3
Views: 13428

Please give me the answer; I know it must be simple.
Just want that highlight thingy on the price axis, please.
Thanks!
Brent
by bfry5282
Fri Dec 23, 2005 9:44 pm
Forum: JFreeChart - Stockmarket
Topic: y axis last price value highlighted?
Replies: 3
Views: 13428

y axis last price value highlighted?

In a time/price chart, the y axis is usually price. I have seen JFreeChart which highlights the last price value in the chart, on the y axis itself. I have a complex realtime JFreeChart futures trading application ZoneTrader, in which I would like to highlight or label the current value on multiple ...
by bfry5282
Tue Oct 12, 2004 5:47 pm
Forum: JFreeChart - Stockmarket
Topic: Synchronization solution needed
Replies: 3
Views: 15342

Synchronization of chart updates

The solution for me is to perform any graph updates on the Swing GUI update thread. That is done by using SwingUtilities.invokeLater(new UpdateChartThread(bufferedData)); So, I buffer data and periodically a trigger thread invokes the charting update, which runs all operations on the GUI thread, whi...
by bfry5282
Wed Sep 29, 2004 7:13 pm
Forum: JFreeChart
Topic: ValueMarkers in auto-scaling?
Replies: 1
Views: 2341

ValueMarkers in auto-scaling?

Is there an easy way to have ValueMarker objects set as RangeMarkers in a TimeSeries chart to be included in the auto scaling?? When present, I'd like to have them incorporated in the scaling, and I already have multiple timeseries being scaled to a single scale. Just want my ValueMarkers to be incl...
by bfry5282
Mon Sep 20, 2004 4:45 am
Forum: JFreeChart - Stockmarket
Topic: Vertical axis ticks and multi-chart alignment
Replies: 1
Views: 8251

Here's what I mean, where each chart should be vertically aligned, but is not due to axis labels, etc.
Image
by bfry5282
Sat Sep 18, 2004 12:44 pm
Forum: JFreeChart - Stockmarket
Topic: Synchronization solution needed
Replies: 3
Views: 15342

original data corruption exception

I'm pumping data into synchronized data structures TimeSeries objects, and using "worker" threads to periodically synch on the various TimeSeries objects while I add data to them. Occasionally, I get the exception shown below. So, I'm wondering what object I need to synch on to ensure the integrity ...
by bfry5282
Sat Sep 18, 2004 12:40 pm
Forum: JFreeChart - Stockmarket
Topic: Synchronization solution needed
Replies: 3
Views: 15342

Synchronization solution needed

OK, posting this in the stock forum... Exception message shown below. But I've been thinking about this, and perhaps here is a solution when streaming data into a dynamic TimeSeries object? I'm pretty sure I should not be asynchronously updating data structures for JFreeChart from various data feede...
by bfry5282
Wed Sep 08, 2004 9:33 pm
Forum: JFreeChart
Topic: Switch rendering on and off?
Replies: 1
Views: 2143

Switch rendering on and off?

I have my chart running along with timeseries and renderers. But, I'd like to "hide" one or more of the lines dynamically. How can I do this? Is there a "nullRenderer" or something similar, which I can swap for the real renderer for an element? Or is there a better way to "hide" a displayed timeseri...