Search found 23 matches

by snid3ly
Wed Aug 21, 2013 6:39 pm
Forum: JFreeChart
Topic: java.lang.IllegalArgumentException: Requires xLow < xHigh.
Replies: 4
Views: 7365

java.lang.IllegalArgumentException: Requires xLow < xHigh.

I got the following exception while clicking around on my chart. Exception in thread "AWT-EventQueue-0" java.lang.IllegalArgumentException: Requires xLow < xHigh. at org.jfree.chart.renderer.RendererUtilities.findLiveItemsLowerBound(RendererUtilities.java:77) at org.jfree.chart.renderer.RendererUtil...
by snid3ly
Wed Aug 21, 2013 1:40 am
Forum: JFreeChart
Topic: HighLowChartDemo2 bug?
Replies: 0
Views: 2435

HighLowChartDemo2 bug?

The appearance of the first point in the HighLowChartDemo2 dataset floats around from about 11:59:30 to 12:00.00 depending on the zoom level:


Image


zoom a little closer and it changes to this:

Image
by snid3ly
Fri Aug 16, 2013 7:42 am
Forum: JFreeChart - Stockmarket
Topic: Candlesticks smashed and overlapping. need horiz scrollbar
Replies: 3
Views: 37662

Candlesticks smashed and overlapping. need horiz scrollbar

I am generating a candlestick chart and when my dataset is large the candles smash together and overlap. I would like for the candles to always remain at the designated spacing/sizing and for a scorllbar to be present if the dataset is wider than the window. Are there any good examples of that aroun...
by snid3ly
Fri Aug 16, 2013 5:21 am
Forum: JFreeChart - Stockmarket
Topic: Formatting Yaxis prices for futures, ie "123-16" not "123.5"
Replies: 4
Views: 39280

Re: Formatting Yaxis prices for futures, ie "123-16" not "12

Here it is... /* * * ----------------------- * TreasuryPriceFormat.java * ----------------------- * */ // package org.jfree.chart.util; import java.text.FieldPosition; import java.text.NumberFormat; import java.text.ParsePosition; import java.util.HashMap; /** * A custom number formatter that format...
by snid3ly
Wed Aug 14, 2013 8:42 pm
Forum: JFreeChart - Stockmarket
Topic: Formatting Yaxis prices for futures, ie "123-16" not "123.5"
Replies: 4
Views: 39280

Re: Formatting Yaxis prices for futures, ie "123-16" not "12

I'd be happy to contribute a futures price formatter. I expect it would throw "InvalidFuturesPrice" if someone tried to format a number which was not a valid futures price But how do I make sure ticks lines on the vertical axis are only displayed at values representing valid futures price values? fr...
by snid3ly
Wed Aug 14, 2013 12:25 am
Forum: JFreeChart - Stockmarket
Topic: Formatting Yaxis prices for futures, ie "123-16" not "123.5"
Replies: 4
Views: 39280

Formatting Yaxis prices for futures, ie "123-16" not "123.5"

I need to format the prices on a vertical axis as treasury futures are quoted in 32nd of a point. So instead of showing 123.5 I will show 123-16. And instead of showing 97.5703125, I will show 97-182 http://www.cmegroup.com/education/files/understanding-treasury-futures.pdf What's the best way to do...
by snid3ly
Wed Aug 07, 2013 7:19 am
Forum: JFreeChart - Stockmarket
Topic: Candlestick Timeline problem
Replies: 10
Views: 77294

Re: Candlestick Timeline problem

What does "GE" and "LE" represent here? // These are commented out but you WILL need to implement them as soon as you // need to call setRange() and need to convert timevalues to data indexes // // public int findFirstXValueGE(long timeval); // public int findLastXValueLE(long timeval); Thanks
by snid3ly
Wed Aug 07, 2013 4:25 am
Forum: JFreeChart - Stockmarket
Topic: How to implement constant volume candlestick bars?
Replies: 5
Views: 45830

Re: How to implement constant volume candlestick bars?

This thread is over 3 years old. Is there a newer/better way to implement constant volume candlestick bars now?

Thanks!