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speed of candlestickrenderer
Posted: Mon Nov 17, 2003 7:01 pm
by uls
is there a reason why the candlestick chart is really *horrible* slow? Compared with the other chart types, the candlestick chart type draws not reasonable slow ...
is there any way to improve speed?
tia,
ulrich
Posted: Tue Nov 18, 2003 11:27 am
by david.gilbert
If you are using a version < 0.9.13, then it could be this:
http://cvs.sourceforge.net/viewcvs.py/j ... 15&r2=1.16
Posted: Wed Jun 01, 2005 11:55 am
by Jii
The candlesticks do indeed seem terribly slow, even in the latest version of JFreeChart.
Posted: Tue Jun 07, 2005 2:04 pm
by Jii
Update: Check if you are using the wrong width method for the candles.
WIDTHMETHOD_AVERAGE seems to give pretty good performance, while the other two make for absolutely horrible draw times.