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Re: Update Every Tick



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> I have an indicator on my chart that keeps a running status of my
> P&L.  When I have a trade on it is set to "Update Every Tick".  The
> problem I have is that when there is a lot of activity (like in the
> E-Mini 500) the chart seems to reload with every update and causes
> constant flicker. 

Usually the chart only replots when it needs to be rescaled -- when 
the whole chart needs to be redrawn with different top & bottom 
values.  Other times TS just redraws the rightmost bar.

Realize that *any* subgraph being rescaled will replot the chart, so 
if your indicator needs to be rescaled, that would cause a replot.

But I wouldn't expect it to do that on *every* tick.  Is it really 
every tick, or only when the market ticks in your direction and gives 
you a new equity high or whatever?

If it's replotting on *every* tick, then try the hardware 
acceleration suggestion.  But in that case I would expect it to 
replot on every tick (on every chart!) whether you display your P&L 
indicator or not.

If it's only flashing when you get a new equity high, you can avoid 
that by plotting another line in your indicator that's higher than 
your P&L line.  E.g. if you plot a line at 
1000*intportion(PnL/1000+1), your chart will only rescale every time 
your P&L crosses a $1000 boundary.  Make the extra line the same 
color as your chart background and you won't notice it.

Gary