-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=65079 --+------------------------------------------------------------------+ --| 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 | --+------------------------------------------------------------------+ --| Patreon : https://goo.gl/GdXWeN | --| 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("N Period Range"); indicator:description(""); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); -- indicator parameters indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("Period", "Period", "", 34); indicator.parameters:addDouble("Value1", "1. Line", "", 100); indicator.parameters:addDouble("Value2", "2. Line", "", 50); indicator.parameters:addGroup("Upper Band Style"); indicator.parameters:addColor("H_color_1", "Color of 1. Upper Band Line", "", core.rgb(0, 255, 0)); indicator.parameters:addColor("H_color_2", "Color of 2. Upper Band Line", "", core.rgb(0, 255, 0)); indicator.parameters:addInteger("H_width", "Line Width", "", 1, 1, 5); indicator.parameters:addInteger("H_style", "Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("H_style", core.FLAG_LINE_STYLE); indicator.parameters:addGroup("Lower Band Style"); indicator.parameters:addColor("L_color_1", "Color of 1. Lower Band Line", "", core.rgb(255, 0, 0)); indicator.parameters:addColor("L_color_2", "Color of 2. Lower Band Line", "", core.rgb(255, 0, 0)); indicator.parameters:addInteger("L_width", "Line Width", "", 1, 1, 5); indicator.parameters:addInteger("L_style", "Line Style", "", core.LINE_SOLID); indicator.parameters:setFlag("L_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 H1 = nil; local L1 = nil; local H2 = nil; local L2 = nil; local Value1; local Value2; -- Routine function Prepare(nameOnly) Period = instance.parameters.Period; Value1 = instance.parameters.Value1; Value2 = instance.parameters.Value2; source = instance.source; first= source:first()+Period; local name = profile:id() .. "(" .. source:name() .. "." .. Period.. "." .. Value1.. "." .. Value2; name = name .. ")"; instance:name(name); if (nameOnly) then return; end H1 = instance:addStream("H1", core.Line, name .. ".1. H", "1. H", instance.parameters.H_color_1, first); H1:setWidth(instance.parameters.H_width); H1:setStyle(instance.parameters.H_style); L1 = instance:addStream("L1", core.Line, name .. ".1. L", "1. L", instance.parameters.L_color_1, first); L1:setWidth(instance.parameters.L_width); L1:setStyle(instance.parameters.L_style); H2 = instance:addStream("H2", core.Line, name .. ".2. H", "2. H", instance.parameters.H_color_2, first); H2:setWidth(instance.parameters.H_width); H2:setStyle(instance.parameters.H_style); L2 = instance:addStream("L2", core.Line, name .. ".2. L", "2. L", instance.parameters.L_color_2, first); L2:setWidth(instance.parameters.L_width); L2:setStyle(instance.parameters.L_style); end -- Indicator calculation routine function Update(period, mode) if period < Period then return; end local Range= mathex.max(source.high, period-1-Period+1, period-1)-source.close[period-1]; H1[period]= source.open[period]+(Range/100)*Value1; L1[period]= source.open[period]-(Range/100)*Value1; H2[period]= source.open[period]+(Range/100)*Value2; L2[period]= source.open[period]-(Range/100)*Value2; end