How can I prevent overwriting of existing values?

• 06/11/2025 at 10:23 AM #248173
  Florian878

  Hi all,

  recently I was converting an indicator from Tradingview to ProBuilder.
  The thing, I can’t get solved is:

  When a new candles forms, the previous calculated value of the indicator is still visible while the newer one overlays/overwrites the previous value.

  I tried to fix this with if

  islastbarupdate then
  drawtext(value, x, y) …
  endif

  Does anyone have any ideas how to solve this?

  See pic. attached.

  Thank you so much in advance.

  Best regards,
  Florian

  

  Florian878

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  06/11/2025 at 11:17 AM #248175
  JS

  Hi Florian,

  Have you tried this instruction at the beginning of your code…?

  DefParam DrawOnLastBarOnly=True

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  JS

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  06/11/2025 at 11:56 AM #248179
  Florian878

  Hi JS,

  First of all: Thank you for your fast response.

  Yes, I tried this but as I also have a condition to color my candles it won’t work as I intended to. It would then limit the colored candles to the current one instead of all of them.
  If there is a work around to still have all candles colored, please let me know.

  Thanks,
  Florian

  

  Florian878

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  06/11/2025 at 12:06 PM #248183
  JS

  What you can try is to split your indicator into two parts, one part for coloring your candles (without “DrawOnLastBarOnly”) and one for the text using DrawOnLastBarOnly…

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  JS

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  06/11/2025 at 12:45 PM #248188
  Florian878

  Yeah, I already thought about that. Thanks for the reminder.

  So there is no other way around to solve this issue?

  Honestly I’m not a huge fan of having a bunch of indicators on my chart.

  

  Florian878

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  06/11/2025 at 2:17 PM #248189
  Iván

  There is a way… You could store variables in arrays and then use a loop.
  here you have an example:

  defparam drawonlastbaronly=true prd = 20 src1 = low //pivots low if src1 > src1[prd] and lowest[prd](src1) > src1[prd] and src1[prd] < lowest[prd](src1)[prd+1] then $pivotlowy[z+1] = src1[prd] $pivotlowx[z+1] = barindex[prd] z = z + 1 endif if islastbarupdate then for i=z downto 0 do drawpoint($pivotlowx[i],$pivotlowy[i],3)coloured("red") next endif return

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  defparam drawonlastbaronly=true   prd = 20 src1 = low //pivots low if src1 > src1[prd] and lowest[prd](src1) > src1[prd] and src1[prd] < lowest[prd](src1)[prd+1] then $pivotlowy[z+1] = src1[prd] $pivotlowx[z+1] = barindex[prd] z = z + 1 endif if islastbarupdate then for i=z downto 0 do drawpoint($pivotlowx[i],$pivotlowy[i],3)coloured("red") next endif   return

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  Iván

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  06/19/2025 at 9:30 AM #248395
  Florian878

  Thank you, Iván,

  I’ll give it a try. Sounds plausible to me.

  greetz,
  Florian

  

  Florian878

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