-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=20899 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------+ --| Developed by : Mario Jemic | --| mario.jemic@gmail.com | --+------------------------------------------------------------------+ --| Support our efforts by donating | --| Paypal: https://goo.gl/9Rj74e | --| BitCoin : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --| BitCoin Cash: 1BEtS465S3Su438Kc58h2sqvVvHK9Mijtg | --| Ethereum : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --| LiteCoin : LLU8PSY2vsq7B9kRELLZQcKf5nJQrdeqwD | --+------------------------------------------------------------------+ -- Indicator profile initialization routine -- Defines indicator profile properties and indicator parameters -- TODO: Add minimal and maximal value of numeric parameters and default color of the streams function Init() indicator:name("MTF N BAR HIGH LOW"); indicator:description(""); indicator:requiredSource(core.Tick); indicator:type(core.Indicator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("Period", "Period", "Period", 0, 0, 1000); indicator.parameters:addString("BS", "Time Frame", "", "D1"); indicator.parameters:setFlag("BS", core.FLAG_PERIODS); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("color", "Line Color", "", core.rgb(255, 0, 0)); indicator.parameters:addInteger("style", "Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("style", core.FLAG_LEVEL_STYLE); indicator.parameters:addInteger("width", "Line Width", "", 3, 1, 5); end -- Indicator instance initialization routine -- Processes indicator parameters and creates output streams -- TODO: Refine the first period calculation for each of the output streams. -- TODO: Calculate all constants, create instances all subsequent indicators and load all required libraries -- Parameters block local Period; local first; local source = nil; local BS; local host; local offset; local weekoffset; local SourceData; local loading = false; -- Streams block local Top = nil; local Bottom = nil; -- Routine function Prepare(nameOnly) Period = instance.parameters.Period; source = instance.source; first = source:first(); local name = profile:id() .. "(" .. source:name() .. ", " .. tostring(Period).. ", " .. tostring(BS) .. ")"; instance:name(name); if (nameOnly) then return; end host = core.host; offset = host:execute("getTradingDayOffset"); weekoffset = host:execute("getTradingWeekOffset"); BS = instance.parameters.BS; SourceData = core.host:execute("getSyncHistory", source:instrument(), BS, source:isBid(), Period, 100, 101); Top = instance:addStream("Top", core.Line, name, "Top", instance.parameters.color, first); Top:setWidth(instance.parameters.width); Top:setStyle(instance.parameters.style); Bottom = instance:addStream("Bottom", core.Line, name, "Bottom", instance.parameters.color, first); Bottom:setWidth(instance.parameters.width); Bottom:setStyle(instance.parameters.style); end function Initialization(period) local Candle; Candle = core.getcandle(BS, source:date(period), offset, weekoffset); if loading or SourceData:size() == 0 then return false ; end if period < source:first() then return false; end local p = core.findDate(SourceData, Candle, false); -- candle is not found if p < 0 then return false; else return p; end end -- Indicator calculation routine -- TODO: Add your code for calculation output values function Update(period) if period < source:size()-1 then return; end local p = Initialization(period) if not p then return; end local max, min; if SourceData:first() > p - Period then return end min,max = mathex.minmax (SourceData, p-Period, p) core.drawLine(Top, core.range(first, source:size()-1), max, first, max, source:size()-1, color); core.drawLine(Bottom, core.range(first, source:size()-1), min, first, min, source:size()-1, color); end -- the function is called when the async operation is finished function AsyncOperationFinished(cookie) if cookie == 100 then loading = false; instance:updateFrom(0); elseif cookie == 101 then loading = true; end end