Hello
Here the code .lua is this code repainting ???
or is only the tma code whos is repainting ??
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function Init()
indicator:name(“Extreme TMA line Slope indicator”);
indicator:description(“Extreme TMA line Slope indicator”);
indicator:requiredSource(core.Tick);
indicator:type(core.Oscillator);
indicator.parameters:addGroup(“Calculation”);
indicator.parameters:addInteger(“TMA_Period”, “TMA period”, “”, 56);
indicator.parameters:addInteger(“ATR_Period”, “ATR period”, “”, 100);
indicator.parameters:addDouble(“TrendThreshold”, “TrendThreshold”, “”, 0.5);
indicator.parameters:addBoolean(“Redraw”, “Redraw”, “”, true);
indicator.parameters:addBoolean(“Show”, “Show Threshol Level”, “”, true);
indicator.parameters:addGroup(“Style”);
indicator.parameters:addColor(“TMA_NEclr”, “Slop Line neutral Color”, “Neutral Color”, core.rgb(128, 128, 128));
indicator.parameters:addColor(“TMA_UPclr”, “Slop Line UP Color”, “UP Color”, core.rgb(0, 255, 0));
indicator.parameters:addColor(“TMA_DNclr”, “Slop Line DN Color”, “DN Color”, core.rgb(255, 0, 0));
indicator.parameters:addInteger(“TMAwidth”, “Width”, “Width”, 2, 1, 5);
indicator.parameters:addInteger(“TMAstyle”, “Style”, “Style”, core.LINE_SOLID);
indicator.parameters:setFlag(“TMAstyle”, core.FLAG_LINE_STYLE);
indicator.parameters:addGroup(“OB/OS Levels”);
indicator.parameters:addColor(“level_overboughtsold_color”, “Line Color”,””, core.rgb(128, 128, 128));
indicator.parameters:addInteger(“level_overboughtsold_width”,”Line width”,””, 1, 1, 5);
indicator.parameters:addInteger(“level_overboughtsold_style”, “Line Style”,””, core.LINE_SOLID);
indicator.parameters:setFlag(“level_overboughtsold_style”, core.FLAG_LEVEL_STYLE);
end
local first;
local source = nil;
local TMA_Period;
local ATR_Period;
local ATR_Mult;
local TrendThreshold;
local Redraw;
local TMA=nil;
local ATR;
local Slope;
local Show;
function Prepare()
source = instance.source;
TMA_Period=instance.parameters.TMA_Period;
ATR_Period=instance.parameters.ATR_Period;
TrendThreshold=instance.parameters.TrendThreshold;
Show=instance.parameters.Show;
Redraw=instance.parameters.Redraw;
assert(core.indicators:findIndicator(“TATR”) ~= nil, “Please, download and install TATR.LUA indicator”);
ATR=core.indicators:create(“TATR”, source, ATR_Period);
first = math.max(source:first() ,ATR.DATA:first(),2*TMA_Period);
local name = profile:id() .. “(” .. source:name() .. “, ” .. instance.parameters.TMA_Period .. “, ” .. instance.parameters.ATR_Period .. “, ” .. instance.parameters.TrendThreshold .. “)”;
instance:name(name);
TMA= instance:addInternalStream(0, 0);
Slope = instance:addStream(“Slope”, core.Line, name .. “.Slope”, “Slope”, instance.parameters.TMA_NEclr, first+TMA_Period);
Slope:setWidth(instance.parameters.TMAwidth);
Slope:setStyle(instance.parameters.TMAstyle);
if Show then
Slope:addLevel(instance.parameters.TrendThreshold, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color);
Slope:addLevel(-instance.parameters.TrendThreshold, instance.parameters.level_overboughtsold_style, instance.parameters.level_overboughtsold_width, instance.parameters.level_overboughtsold_color);
end
end
function Update(period, mode)
ATR:update(mode);
if period < ATR.DATA:first() then
return;
end
if period < TMA_Period then
return;
end
if period == source:size()-2 then
for i = first, period , 1 do
Logic(i, mode);
end
elseif period == source:size()-1 then
Logic(period, mode);
end
end
function Logic (period, mode)
local i;
local ii=TMA_Period;
local LastPeriod;
if period==source:size()-1 then
LastPeriod=true;
else
LastPeriod=false;
end
while ii>0 do
if not(LastPeriod) then
ii=0;
else
ii=ii-1;
end
local Sum=0;
local SumW=(TMA_Period+2)*(TMA_Period+1)/2;
for i=0,TMA_Period,1 do
Sum=Sum+(TMA_Period-i+1)*source[period-i];
if Redraw then
if i<=source:size()-1-period and i>0 then
Sum=Sum+(TMA_Period-i+1)*source[period+i];
SumW=SumW+(TMA_Period-i+1);
end
end
end
TMA[period]=Sum/SumW;
Slope[period]=(TMA[period]-TMA[period-1])/(0.1*ATR.DATA[period]);
if Slope[period]>TrendThreshold then
Slope:setColor(period,instance.parameters.TMA_UPclr);
elseif Slope[period]<-TrendThreshold then
Slope:setColor(period,instance.parameters.TMA_DNclr);
else
Slope:setColor(period,instance.parameters.TMA_NEclr);
end
end
end
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