-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=70412 --+------------------------------------------------------------------------------------------------+ --| Copyright © 2021, Gehtsoft USA LLC | --| http://fxcodebase.com | --+------------------------------------------------------------------------------------------------+ --| Support our efforts by donating | --| Paypal: https://goo.gl/9Rj74e | --+------------------------------------------------------------------------------------------------+ --| Developed by : Mario Jemic | --| mario.jemic@gmail.com | --| https://AppliedMachineLearning.systems | --| Patreon : https://goo.gl/GdXWeN | --+------------------------------------------------------------------------------------------------+ --+------------------------------------------------------------------------------------------------+ --|BitCoin Address : 15VCJTLaz12Amr7adHSBtL9v8XomURo9RF | --|Ethereum Address : 0x8C110cD61538fb6d7A2B47858F0c0AaBd663068D | --|Cardano/ADA : addr1v868jza77crzdc87khzpppecmhmrg224qyumud6utqf6f4s99fvqv | --|Dogecoin Address : DNDTFfmVa2Gjts5YvSKEYaiih6cums2L6C | --|Binance(ERC20 & BSC only) : 0xe84751063de8ade7c5fbff5e73f6502f02af4e2c | | --+------------------------------------------------------------------------------------------------+ function Init() indicator:name("Sine wave"); indicator:description("Sine wave"); indicator:requiredSource(core.Tick); indicator:type(core.Oscillator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("Extension", "Extension", "Extension", 100); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("color", "Line Color", "Line Color", core.rgb(255, 0, 0)); indicator.parameters:addInteger("width", "Line width", "", 1, 1, 5); indicator.parameters:addInteger("style", "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("style", core.FLAG_LINE_STYLE); indicator.parameters:addGroup("Vertical Line Style"); indicator.parameters:addColor("Start", "Start Line Color", "", core.rgb(0, 255, 0)); indicator.parameters:addColor("End", "End Line Color", "", core.rgb(255, 0, 0)); indicator.parameters:addInteger("Width", "Line width", "", 1, 1, 5); indicator.parameters:addInteger("Style", "Line style", "", core.LINE_SOLID); indicator.parameters:setFlag("Style", core.FLAG_LINE_STYLE); 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 first; local source = nil; -- Streams block local StartDate, EndDate; local StartLevel, EndLevel; local StartPeriod, EndPeriod; local pattern = "([^;]*);([^;]*)"; local db; local Extension; local Line; -- Routine function Prepare(nameOnly) source = instance.source; first = source:first() ; local name = profile:id() .. "(" .. source:name() .. ")"; instance:name(name); if (nameOnly) then return; end Start=instance.parameters.Start; End=instance.parameters.End; Width=instance.parameters.Width; Style=instance.parameters.Style; Extension=instance.parameters.Extension; EndDate=nil; StartData=nil; StartPeriod, EndPeriod=nil,nil; Line = instance:addStream("Line", core.Line, name, "Line", instance.parameters.color, first,Extension); Line:setPrecision(math.max(2, instance.source:getPrecision())); Line:setWidth(instance.parameters.width); Line:setStyle(instance.parameters.style); Line:addLevel(0); core.host:execute("addCommand", 1, "Start Point"); core.host:execute("addCommand", 2, "End Point"); require("storagedb"); db = storagedb.get_db(name); instance:ownerDrawn(true); core.host:execute("setTimer", 10, 1); end function ReleaseInstance() core.host:execute("killTimer", 10); end -- Indicator calculation routine -- TODO: Add your code for calculation output values function Update(period) if period < source:size()-1 then return; end if StartDate~= nil then StartPeriod = core.findDate (source, StartDate, false); end if EndDate~= nil then EndPeriod = core.findDate (source, EndDate, false); end if EndDate== nil or StartPeriod== nil or period < StartPeriod then return; end Period=(EndPeriod-StartPeriod)/2; for i= StartPeriod-1, source:size()-1+Extension ,1 do Line[i] = math.sin(math.pi * ((i-StartPeriod)/Period) ); end end function AsyncOperationFinished(cookie, success, message) if cookie== 1 then local Level, Date = string.match(message, pattern, 0); db:put("StartDate" , tostring(Date)); db:put("StartLevel" , tostring(Level)); end if cookie== 2 then local Level, Date = string.match(message, pattern, 0); db:put("EndDate" , tostring(Date)); db:put("EndLevel" , tostring(Level)); end if cookie == 10 then StartDate= db:get ("StartDate", 0); StartLevel= db:get ("StartLevel", 0); EndDate= db:get ("EndDate", 0); EndLevel= db:get ("EndLevel", 0); instance:updateFrom(0); end return core.ASYNC_REDRAW ; end local init = false; function Draw(stage, context) if stage~= 2 then return; end if not init then init = true; context:createPen (1, context:convertPenStyle (Style ), context:pointsToPixels (Width ), Start ) context:createPen (2, context:convertPenStyle (Style ), context:pointsToPixels (Width ), End ) end if StartPeriod~= nil then x, x1, x2 = context:positionOfBar (StartPeriod) context:drawLine (1, x, context:top (), x, context:bottom ()); end if EndPeriod~= nil then x, x1, x2 = context:positionOfBar (EndPeriod) context:drawLine (2, x, context:top (), x, context:bottom ()); end end