Probably that happens because there are no "ticks" in offline charts so the indicator is not triggered in right way
Ignored
Ok, but an offline chart does get updated forming the bar/candle. I'm not an indicator guy and certainly not a coder, but I think it's weird that I have seen indicators repaint in live charts which didn't do the same in offline charts, even when I closed and re-opened mt4. Maybe I am a clueless noob in the eyes of a coder, but I really don't get it...
Joined Apr 2009
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Status: MT4 Programmer
|758 Posts
the first time you attach an indicator to a chart, it calculates all bars. then for each new tick it calculates only the last two bars, considering that older bars have been calculated, thus saving time and resources.
this is accomplished by the use of IndicatorCounted() function. This function tells indicator how much bars have been calculated.
in live chart, IndicatorCounted() equals zero when called the first time, and on each new tick it equals the number of bars minus one.
bad design indicator become repainting because the use of this function.
in offline chart IndicatorCounted always equal zero so indicator always calculate all bars on eah new tick. while it can eliminate repainting, it eats computer resources, especially in high volatility
if you have the source (mq4 file) of that repainting indicator, replace IndicatorCounted() function with "0".
the first time you attach an indicator to a chart, it calculates all bars. then for each new tick it calculates only the last two bars, considering that older bars have been calculated, thus saving time and resources.
this is accomplished by the use of IndicatorCounted() function. This function tells indicator how much bars have been calculated.
in live chart, IndicatorCounted() equals zero when called the first time, and on each new tick it equals the number of bars minus one.
bad design indicator become repainting because the use of this...
Ignored
Thanks Sangmane!!
Great explenation, always good to learn something new and to better understand why and how things work.
