Performance hit when too many line objects

[hometradingblog]

Hi;
I developed an indicator highlighting zones on my chart and use lines for top and bottom of zone. I have noticed a significant hit on performance when too many zones are placed on the chart. Is this related to the line object that I am using. If yes is there a better way drawing lines.

Thanks
Thomas

[NinjaTrader_Bertrand]

Hi Thomas, how many unique objects do you create typically with this approach?

[hometradingblog]

Usually 100 - 200 lines, which is not a problem, however depending on the timeframe I have run with up to 10000 lines, this is where performance goes down.

[NinjaTrader_Bertrand]

Thanks, yes at this level I would expect that - wouldn't it make sense than to limit the marking up to x sessions back for example, or do you need all this info for the current decisions?

[hometradingblog]

Yes that is what I am currently doing working with less data which makes the performance much better.

The other annoying thing (but I can live with it) is that some zones have their start and end time far apart, which means I can see the line at the beginning and at the end, but when scrolling the chart the mid section is not visible. I know though that this is a limitation of lines and rectangles that have their anchor point too far of the chart.

Thanks again for the quick responses
Thomas

[NinjaTrader_Bertrand]

You're welcome - correct that's a known limitation of the rendering approach but on my dev team's list look into enhancing for our next major update, I add your thoughts into our feedback tracking as well on this item.