Displaying fractals Pastie For Amibroker (AFL)

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// Fractals
// AFL code by Edward Pottasch, Apr 2013
RequestTimedRefresh(0.1,True); 
xx=BarIndex();x=xx;Lx=LastValue(x);
rightStrength=Param("Fractal Pivot Right side Strength",5,2,50,1); 
leftStrength=Param("Fractal Pivot Left side Strength",10,2,50,1); 
tf=Param("Time Frame (min)",5,1,1440,1);tfrm=in1Minute*tf;
CleanPivots=ParamToggle("Force Pivots to Alternate","Off|On",0);
Cttop=Param("Code Title Top",15,1,250,1); 
Ctspac=Param("Code Title Spacing",15,1,250,1);
dispLabels=ParamToggle("Display Labels","Off|On",1);
LabelColor=ParamColor("Label Color",colorYellow);
GfxSetTextColor(ParamColor("Code Title Color",colorLightGrey));
backGroundColor=ParamColor("Chart Background Color",colorBlack);
 
TimeFrameSet(tfrm); 
pk=H>Ref(HHV(H,leftStrength),-1) AND Ref(HHV(H,rightStrength),rightStrength)<=H;
tr=L<Ref(LLV(L,leftStrength),-1) AND Ref(LLV(L,rightStrength),rightStrength)>=L;
 
px0=ValueWhen(pk,x,0); tx0=ValueWhen(tr,x,0);
px1=ValueWhen(pk,x,1); tx1=ValueWhen(tr,x,1);
px2=ValueWhen(pk,x,2); tx2=ValueWhen(tr,x,2);
ph0=ValueWhen(pk,H,0); tl0=ValueWhen(tr,L,0);
ph1=ValueWhen(pk,H,1); tl1=ValueWhen(tr,L,1);
ph2=ValueWhen(pk,H,2); tl2=ValueWhen(tr,L,2);
 
if(CleanPivots)
{
    pk=IIf((ph0>=ph1 AND tx0>px0 AND px0!=px1) 
    OR (ph1<ph2 AND px2>tx1)
    OR (ph0>=ph1 AND tx0<px0 AND tx0==tx1 AND px0!=px1)
    ,False,pk);
    tr=IIf((tl0<=tl1 AND px0>tx0 AND tx0!=tx1) 
    OR (tl1>tl2 AND tx2>px1)
    OR (tl0<=tl1 AND px0<tx0 AND px0==px1 AND tx0!=tx1)
    ,False,tr);
     
    px0=ValueWhen(pk,x,0); tx0=ValueWhen(tr,x,0);
    px1=ValueWhen(pk,x,1); tx1=ValueWhen(tr,x,1);
    px2=ValueWhen(pk,x,2); tx2=ValueWhen(tr,x,2);
    ph0=ValueWhen(pk,H,0); tl0=ValueWhen(tr,L,0);
    ph1=ValueWhen(pk,H,1); tl1=ValueWhen(tr,L,1);
    ph2=ValueWhen(pk,H,2); tl2=ValueWhen(tr,L,2);   
}
 
pkh=IIf(pk,H,Null);trl=IIf(tr,L,Null);
TimeFrameRestore();
fact=Nz(Max(tfrm/60,Interval()/60)/(Interval()/60));
if(fact==0)fact=1;
Lkbk=Nz(tfrm/Interval());
if(Lkbk>1)
{
    pk=TimeFrameExpand(pk,tfrm,expandFirst);
    pkh=TimeFrameExpand(pkh,tfrm,expandFirst);
    pkhs=IIf(!IsEmpty(pkh),1,0);pkhs=pkhs-Ref(pkhs,-1);
    pk=pk AND H==pkh;
    cond1=Sum(pk,BarsSince(pkhs==1)+1)==1 AND pk;
    pk=pk AND cond1;
      
    tr=TimeFrameExpand(tr,tfrm,expandFirst);    
    trl=TimeFrameExpand(trl,tfrm,expandFirst);
    trls=IIf(!IsEmpty(trl),1,0);trls=trls-Ref(trls,-1);
    tr=tr AND L==trl;
    cond1=Sum(tr,BarsSince(trls==1)+1)==1 AND tr;
    tr=tr AND cond1;
}
px0=ValueWhen(pk,x,0); tx0=ValueWhen(tr,x,0);
px1=ValueWhen(pk,x,1); tx1=ValueWhen(tr,x,1);
px2=ValueWhen(pk,x,2); tx2=ValueWhen(tr,x,2);
ph0=ValueWhen(pk,H,0); tl0=ValueWhen(tr,L,0);
ph1=ValueWhen(pk,H,1); tl1=ValueWhen(tr,L,1);
ph2=ValueWhen(pk,H,2); tl2=ValueWhen(tr,L,2);   
 
ll=tr AND tl1<tl2;
hl=tr AND tl1>tl2;
hh=pk AND ph1>ph2;
lh=pk AND ph1<ph2;
dt=pk AND ph1==ph2;
db=tr AND tl1==tl2;
 
GraphXSpace=5;SetChartBkColor(backGroundColor);SetChartOptions(0,chartShowDates);
SetBarFillColor(IIf(C>O,colorGreen,IIf(C<=O,colorRed,colorLightGrey)));
Plot(C,"Price",IIf(C>O,colorDarkGreen,IIf(C<=O,colorDarkRed,colorLightGrey)),64,0,0,0,0);
Plot(pkh,"",colorRed,styleThick,0,0,0,-1);
Plot(trl,"",colorBrightGreen,styleThick,0,0,0,-1);
PlotShapes(shapeSmallCircle*tr,IIf(Lx-ValueWhen(tr,x)>=rightStrength*fact,ColorRGB(0,100,0),colorWhite),0,L,-10);
PlotShapes(shapeSmallCircle*pk,IIf(Lx-ValueWhen(pk,x)>=rightStrength*fact,ColorRGB(255,0,0),colorWhite),0,H,10);
 
qq=Interval()/60;
if(qq < 60){tf=" min";tt=qq;}
else if(qq >= 60 AND qq < 1440){tf=" hrs";tt=qq/60;}
else if(qq >= 1440){tf=" days";tt=(qq/60)/24;}
qq=Max(tfrm/60,Interval()/60);
if(qq < 60){tfa=" min";tta=qq;}
else if(qq >= 60 AND qq < 1440){tfa=" hrs";tta=qq/60;}
else if(qq >= 1440){tfa=" days";tta=(qq/60)/24;}
 
GfxSetOverlayMode(0);
GfxSetBkMode(1);
GfxSelectFont("Tahoma",11,200);
GfxTextOut("Right Strenght: "+rightStrength,5,Cttop);
GfxTextOut("Left Strenght: "+leftStrength,5,Cttop+Ctspac);
GfxTextOut("Chart Timeframe: "+tt+""+tf,5,Cttop+Ctspac*2);
GfxTextOut("Pivot Timeframe: "+tta+""+tfa,5,Cttop+Ctspac*3);
 
abcdy_up=27;
abcdy_dn=15;
function GetVisibleBarCount() 
{
    lvb=Status("lastvisiblebar");
    fvb=Status("firstvisiblebar");
    return Min(lvb-fvb,BarCount-fvb);
} 
function GfxConvertPixelToValueY(Pixels) 
{
    local Miny,Maxy,pxchartbottom,pxchartheight;
    Miny=Status("axisminy");
    Maxy=Status("axismaxy");
    pxchartbottom=Status("pxchartbottom");
    pxchartheight=Status("pxchartheight");
    fac=pxchartheight/Pixels;
    Value=(Maxy-Miny)/fac;
    return Nz(Value);
} 
function GfxConvertBarToPixelX(bar) 
{ 
    lvb=Status("lastvisiblebar"); 
    fvb=Status("firstvisiblebar"); 
    pxchartleft=Status("pxchartleft"); 
    pxchartwidth=Status("pxchartwidth"); 
    return Nz(pxchartleft+bar*pxchartwidth/(lvb-fvb+1)); 
} 
function GfxConvertValueToPixelY(value) 
{
    local Miny,Maxy,pxchartbottom,pxchartheight; 
    Miny=Status("axisminy");
    Maxy=Status("axismaxy");
    pxchartbottom=Status("pxchartbottom");
    pxchartheight=Status("pxchartheight");
    return Nz(pxchartbottom-floor(0.5+(Value-Miny)*pxchartheight/(Maxy-Miny))); 
} 
AllVisibleBars=GetVisibleBarCount();
fvb=Status("firstvisiblebar");
abcdy_up=GfxConvertPixelToValueY(abcdy_up);
abcdy_dn=GfxConvertPixelToValueY(abcdy_dn);
 
for(i=0;i<AllVisibleBars;i++) 
{
    GfxSelectFont("Tahoma",8,500);GfxSetBkMode(1); 
    if(ll[i+fvb] AND dispLabels)
    {
        lvix=i+fvb;
        GfxSetTextColor(LabelColor);GfxTextOut("LL",
        GfxConvertBarToPixelX(i)-3,GfxConvertValueToPixelY(L[lvix]-abcdy_dn)); 
    }
    if(hl[i+fvb] AND dispLabels)
    {
        lvix=i+fvb;
        GfxSetTextColor(LabelColor);GfxTextOut("HL",
        GfxConvertBarToPixelX(i)-3,GfxConvertValueToPixelY(L[lvix]-abcdy_dn)); 
    }   
    if(db[i+fvb] AND dispLabels)
    {
        lvix=i+fvb;
        GfxSetTextColor(LabelColor);GfxTextOut("DB",
        GfxConvertBarToPixelX(i)-3,GfxConvertValueToPixelY(L[lvix]-abcdy_dn)); 
    }       
    if(hh[i+fvb] AND dispLabels)
    {
        lvix=i+fvb;
        GfxSetTextColor(LabelColor);GfxTextOut("HH",
        GfxConvertBarToPixelX(i)-5,GfxConvertValueToPixelY(H[lvix]+abcdy_up)); 
    }   
    if(lh[i+fvb] AND dispLabels)
    {
        lvix=i+fvb;
        GfxSetTextColor(LabelColor);GfxTextOut("LH",
        GfxConvertBarToPixelX(i)-5,GfxConvertValueToPixelY(H[lvix]+abcdy_up)); 
    }   
    if(dt[i+fvb] AND dispLabels)
    {
        lvix=i+fvb;
        GfxSetTextColor(LabelColor);GfxTextOut("DT",
        GfxConvertBarToPixelX(i)-5,GfxConvertValueToPixelY(H[lvix]+abcdy_up)); 
    }
}
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fractals for Amibroker (AFL)
