speed of candlestickrenderer

uls · Post by **uls** » Mon Nov 17, 2003 7:01 pm

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

Post by **david.gilbert** » Tue Nov 18, 2003 11:27 am

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

Jii · Post by **Jii** » Wed Jun 01, 2005 11:55 am

The candlesticks do indeed seem terribly slow, even in the latest version of JFreeChart.

Jii · Post by **Jii** » Tue Jun 07, 2005 2:04 pm

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.