DRAWSEGMENT assistance

• 06/30/2017 at 9:23 PM #39523
  IG_CFD_Trader

  Hi Nicolas and other forum members,

  The attached code draws high and low points on the chart.

  How do I amend it using drawsegment command so that:

  1. it connects the last 2 high points and the last 2 low points on the chart ONLY.
  2. every time a new 2 high and low points are formed, these new points are connected and the 2 old segment lines are automatically removed (i.e. code basically draws the latest 2 high and 2 low points continually)

  Any assistance is appreciated.

  Walid

   

   

  

  IG_CFD_Trader

  Participant

  Topics: 31

  Replies: 74

  Been thanked: 2 times
  06/30/2017 at 9:36 PM #39525
  Nicolas

  Would you mind add the code in readable format in your next post please? Should be easier to help.
  If a graphical component has been plotted, it cannot be erased. But there are some tricks to do it, that’s why I need to explore your code, but preferably on the forum, thank you.

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
  07/01/2017 at 12:34 AM #39527
  IG_CFD_Trader

  TH=max(high,close[1]) TL=min(low,close[1]) r=0 e=1 r=strength if high[r]>highest[r](TH) then e=1 while high[r]=high[r+e] do e=e+1 wend if high[r]>highest[r](TH[r+e]) then HiPoint = high[r] endif Endif if low[r]<lowest[r](TL) then e=1 while low[r]=low[r+e] do e=e+1 wend if low[r]<lowest[r](TL[r+e]) then LoPoint = low[r] endif endif return HiPoint as "SupplyLine", LoPoint as "DemandLine"

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49

  TH=max(high,close[1])   TL=min(low,close[1])   r=0   e=1   r=strength   if high[r]>highest[r](TH) then   e=1   while high[r]=high[r+e] do   e=e+1   wend   if high[r]>highest[r](TH[r+e]) then   HiPoint = high[r]   endif   Endif   if low[r]<lowest[r](TL) then   e=1   while low[r]=low[r+e] do   e=e+1   wend   if low[r]<lowest[r](TL[r+e]) then   LoPoint = low[r]   endif   endif       return HiPoint as "SupplyLine", LoPoint as "DemandLine"

   

  

  IG_CFD_Trader

  Participant

  Topics: 31

  Replies: 74

  Been thanked: 2 times
  07/02/2017 at 7:35 PM #39595
  Nicolas

  Do you want the lines to be plotted also in the price history or only about the current supply and demand zones?

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
  07/03/2017 at 12:20 AM #39611
  IG_CFD_Trader

  No only the current supply and demand zones (i.e. always lines connecting the highs and lows of latest 2 supply lines and 2 demand lines only.

  

  IG_CFD_Trader

  Participant

  Topics: 31

  Replies: 74

  Been thanked: 2 times
  07/03/2017 at 9:55 AM #39655
  Nicolas

  This is how it looks now. Segments are plotted between the 2 last tow detected Highs and Lows. As I said previously, the plotted lines can’t be erased.

  //defparam drawonlastbaronly=true //defparam calculateonlastbars=200 strength=20 TH=max(high,close[1]) TL=min(low,close[1]) r=0 e=1 r=strength if high[r]>highest[r](TH) then e=1 while high[r]=high[r+e] do e=e+1 wend if high[r]>highest[r](TH[r+e]) then HiPoint = high[r] HiBar = barindex[r] drawsegment(HiBar[1],HiPoint[1],HiBar,HiPoint) coloured(200,0,0) endif Endif if low[r]<lowest[r](TL) then e=1 while low[r]=low[r+e] do e=e+1 wend if low[r]<lowest[r](TL[r+e]) then LoPoint = low[r] LoBar = barindex[r] drawsegment(LoBar[1],LoPoint[1],LoBar,LoPoint) coloured(0,200,0) endif endif return //HiPoint as "SupplyLine", LoPoint as "DemandLine"

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45

  //defparam drawonlastbaronly=true //defparam calculateonlastbars=200   strength=20   TH=max(high,close[1]) TL=min(low,close[1]) r=0 e=1   r=strength   if high[r]>highest[r](TH) then e=1   while high[r]=high[r+e] do e=e+1 wend   if high[r]>highest[r](TH[r+e]) then   HiPoint = high[r] HiBar = barindex[r] drawsegment(HiBar[1],HiPoint[1],HiBar,HiPoint) coloured(200,0,0) endif   Endif   if low[r]<lowest[r](TL) then   e=1 while low[r]=low[r+e] do e=e+1 wend   if low[r]<lowest[r](TL[r+e]) then   LoPoint = low[r] LoBar = barindex[r] drawsegment(LoBar[1],LoPoint[1],LoBar,LoPoint) coloured(0,200,0) endif   endif   return //HiPoint as "SupplyLine", LoPoint as "DemandLine"

   

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
  07/06/2017 at 8:42 PM #39971
  IG_CFD_Trader

  Hi Nicolas,

  Thank you for posting amended code.

  You are almost there.

  One final change that needs to be made: the segment lines need to connect the current HiPoint with the first preceding HiPoint before it that is HIGHER than the current HiPoint and same for LoPoint segment, the segment lines need to connect the current LoPoint with the first preceding LoPoint before it that is LOWER than the current LoPoint

  

  IG_CFD_Trader

  Participant

  Topics: 31

  Replies: 74

  Been thanked: 2 times
  07/07/2017 at 8:55 AM #39995
  Nicolas

  So you want to draw triangle, right?

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
  07/07/2017 at 9:10 AM #39998
  IG_CFD_Trader

  Yes you can call it a triangle if you like. Basically I want to connect the high of the most current HiPoint on the chart with the high of the first Hipoint before it that is higher than it. It must be higher than it. Same for lopoints

  

  IG_CFD_Trader

  Participant

  Topics: 31

  Replies: 74

  Been thanked: 2 times
  07/07/2017 at 9:26 AM #40000
  Nicolas

  Ok but the “first preceding HiPoint” is not necessarily the previous one, it could be the 3rd ones from now, right?

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
  07/07/2017 at 9:30 AM #40003
  IG_CFD_Trader

  yes absolutely.

  

  IG_CFD_Trader

  Participant

  Topics: 31

  Replies: 74

  Been thanked: 2 times
  07/07/2017 at 10:57 AM #40013
  Nicolas

  ok that’s a bit tricky, we’ll have to make a loop through history. Let’s see what can I do!

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
  07/07/2017 at 11:06 AM #40014
  Nicolas

  This is what I made so far. It works, but as you can see, sometimes the last high or low points in the past are used several times. In this code we are not fetching through the whole history but only in the last “length * 5” bars, you can change this factor of course.

   

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
  07/07/2017 at 9:10 PM #40047
  IG_CFD_Trader

  Looks good but you forgot to post the code 🙂 can you post the code please for the changes you made?

  

  IG_CFD_Trader

  Participant

  Topics: 31

  Replies: 74

  Been thanked: 2 times
  07/09/2017 at 1:03 PM #40165
  Nicolas

  Before posting it I wanted to be sure this was in accordance with your query, here is the code:

  strength=20 lookback=strength*5 TH=max(high,close[1]) TL=min(low,close[1]) r=0 e=1 r=strength if high[r]>highest[r](TH) then e=1 while high[r]=high[r+e] do e=e+1 wend if high[r]>highest[r](TH[r+e]) then HiPoint = high[r] HiBar = barindex[r] for i = 1 to lookback do if hibar[i]<>hibar then if hipoint[i]>hipoint then drawsegment(HiBar[i],HiPoint[i],HiBar,HiPoint) coloured(200,0,0) break endif endif next endif Endif if low[r]<lowest[r](TL) then e=1 while low[r]=low[r+e] do e=e+1 wend if low[r]<lowest[r](TL[r+e]) then LoPoint = low[r] LoBar = barindex[r] for i = 1 to lookback do if lobar[i]<>lobar then if lopoint[i]<lopoint then drawsegment(loBar[i],loPoint[i],loBar,loPoint) coloured(0,200,0) break endif endif next endif endif return

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51

  strength=20 lookback=strength*5   TH=max(high,close[1]) TL=min(low,close[1]) r=0 e=1   r=strength   if high[r]>highest[r](TH) then e=1 while high[r]=high[r+e] do e=e+1 wend if high[r]>highest[r](TH[r+e]) then HiPoint = high[r] HiBar = barindex[r]   for i = 1 to lookback do if hibar[i]<>hibar then if hipoint[i]>hipoint then drawsegment(HiBar[i],HiPoint[i],HiBar,HiPoint) coloured(200,0,0) break endif endif next endif Endif   if low[r]<lowest[r](TL) then e=1 while low[r]=low[r+e] do e=e+1 wend if low[r]<lowest[r](TL[r+e]) then LoPoint = low[r] LoBar = barindex[r]   for i = 1 to lookback do if lobar[i]<>lobar then if lopoint[i]<lopoint then drawsegment(loBar[i],loPoint[i],loBar,loPoint) coloured(0,200,0) break endif endif next endif endif   return

   

  

  Nicolas

  Keymaster

  Topics: 81

  Replies: 20863

  Been thanked: 4770 times
• Author
  Posts