I have coded an indicator which draws arrows when certain conditions/patterns are met. It works perfectly 99.9% of the time. Occasionally, I will see some random glitch whereby I see the object is drawn under the wrong candle. Upon investigation I cannot find the source of the problem. I have prints on every bar. Reloading the data puts the objects in the correct place and In market replay on the same section of candlesticks, the problem does not repeat and I cannot repeat it.
But the fact remains that every so often I see this glitch. I've never seen it play out live. The 2-3 times I've seen it is where I've gone to another tab or something than come back and noticed it. I happened yesterday and I took screenshots and grabbed the output.
Please see screenshot. (Please ignore the green triangle, I omitted the code for that here). In essence, Bar 5405 is the trigger bar and here code runs that should draw a grey unicode triangle under the signal bar, in this case the signal bar is the prior bar, 5404.
The object is drawn with this code(onpricechange):
I get this print on bar 5405 when the trigger condition is met:
1 bar later on bar 5406, I get this print (note the BarsAgo value changed as expected):
All makes total sense. Yet for some reason, NT drew this grey triangle under bar 4505. But I don’t know why. The section of the code that places the triangle is the BarsAgo_Long_Signal variable and when it was drawn it had a value of 1, but it's drawn as if the value was 0. The Print output is done directly before the Draw.Text so there is not chance the BarsAgo variable was somehow changed between the print and the drawing of the text.
The fact I cannot repeat the bug on the same section of candlesticks with market replay and the same code tells me it's possible this is not at all related to my code? and just an unexplainable random rendering glitch? Is this possible?
But the fact remains that every so often I see this glitch. I've never seen it play out live. The 2-3 times I've seen it is where I've gone to another tab or something than come back and noticed it. I happened yesterday and I took screenshots and grabbed the output.
Please see screenshot. (Please ignore the green triangle, I omitted the code for that here). In essence, Bar 5405 is the trigger bar and here code runs that should draw a grey unicode triangle under the signal bar, in this case the signal bar is the prior bar, 5404.
The object is drawn with this code(onpricechange):
Code:
if ((Trigger == true)
&& (CurrentBars[0] == (Bar_Long_Trigger))) // Only runs when the current bar is the trigger bar.
{
Draw.Text(this, @“Grey_Triangle” + Counter, true, @Unicode_Arrow, BarsAgo_Long_Signal, Low_Long_Signal, -10, MyBrush, myFont, TextAlignment.Center, null, null, 100);
}
Code:
Time 17:25:02.1490000 CurrentBar 5405 Trigger = true Bar_Long_Signal = 5404 Bar_Long_Trigger = 5405 BarsAgo_Long_Signal = 1
Code:
Time 17:27:09.0750000 CurrentBar 5406 Long_Signal = true Bar_Long_Signal = 5404 Bar_Long_Trigger = 5405 BarsAgo_Long_Signal = 2
The fact I cannot repeat the bug on the same section of candlesticks with market replay and the same code tells me it's possible this is not at all related to my code? and just an unexplainable random rendering glitch? Is this possible?
Attached Files
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