plot points at the extremes of high / low

Hello
here is a screenshot about what i want to do : plot points at the extremes of high / low

An Upswing starts when a bar s high and low prices rise above the respective high and low prices of the latest Downswing. Prices then remain in an Upswing until such a bar that the high and low prices decline below the respective high and low prices of the highest bar of the Upswing. The highest price in the Upswing is called a TOP

A Downswing starts when a bar s high and low prices decline below the respective high and low prices of the highest bar of the latest Upswing. Prices then remain in a Downswing until a bar high and low prices rise above the respective high and low prices of the lowest bar of the Downswing. The lowest price in the Downswing is called a BOTTOM.

in my code, points aren't plotted at the extremes of high / low

THANKS YOU FOR HELP

Code:

Vars: Trend(0), DnTrend(False), UpTrend(False), DnTrendLow(999999),UpTrendHigh(-99999), 
UpTrendLow(0),DnTrendHigh(0), UpTrendDate(0), DnTrendDate(0), DownTrendBar(0), UpTrendBar(0); 
Arrays: LastH[3](0), LastLo[3](0),DateH[3](0),DateLo[3](0); 

{ Downtrend = one down bar / Uptrend = one up bar } 
DnTrend = High < High[1] and Low < Low[1]; 
UpTrend = High > High[1] and Low > Low[1]; 

{ We define a change from an Uptrend to a Downtrend as a simple Downtrend combined with 
the low lower than the low recorded on the day of the highest bar of the latest Uptrend. } 
If DnTrend = True and Low <= UpTrendLow then Trend = -1; 

{ We define a change from a Downtrend to an Uptrend as a simple Uptrend combined with 
the high greater than the high recorded on the day of the lowest bar of the latest Downtrend. } 
If UpTrend = True and High >= DnTrendHigh then Trend = 1; 

{ Keep track of the high recorded on the day of the lowest low of a Downtrend 
Keep track of the low recorded on the day of the hightest high of an Uptrend } 
If Trend = 1 and High > UpTrendHigh and High > High[1] then UpTrendLow = Low; 
If Trend = -1 and Low < DnTrendLow and Low < Low[1] then DnTrendHigh = High; 

If Trend = -1 and DnTrendLow > Low then 
Begin 
DnTrendDate = Date; 
DownTrendBar = CurrentBar; 
DnTrendLow = Low; 
End; 

If Trend = 1 and UpTrendHigh < High then 
Begin 
UpTrendDate = Date; 
UpTrendBar = CurrentBar; 
UpTrendHigh = High; 
End; 

If Trend = 1 and Trend[1] <> 1 then 
Begin 
LastLo[0] = DnTrendLow; 
DnTrendLow = Low; 
DateLo[0] = DnTrendDate; 
Plot1(LastLo[0],"Dn"); 
//Plot1[CurrentBar - UpTrendBar](LastLo[0],"Dn"); 
End 
Else 
NoPlot(1); 

If Trend = - 1 and Trend[1] <> -1 then 
Begin 
LastH[0] = UpTrendHigh; 
UpTrendHigh = High; 
DateH[0] = UpTrendDate; 
Plot2(LastH[0],"Up"); 
//Plot2[CurrentBar - DnTrendBar](LastH[0],"Up"); 
End 
Else 
Noplot(2);

<img src=http://www.elitetrader.com/vb/attachment.php?s=&postid=2235203>

 

If the market moves in an "orderly" manner, you'll become a trillionaire.

 

take a look at the ZigZag code here:

#12 on the list:
http://www.elitetrader.com/vb/showthread.php?s=&postid=2193301#post2193301

also, the HH LL might be of interest to you.
#1 on the list.