-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=65400 --+------------------------------------------------------------------+ --| Copyright © 2018, Gehtsoft USA LLC | --| http://fxcodebase.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 | --+------------------------------------------------------------------+ function Init() indicator:name("Top And Bottom indicator"); indicator:description("Top And Bottom indicator"); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addGroup("Calculation"); indicator.parameters:addInteger("Frame", "Frame", "", 2); indicator.parameters:addGroup("Style"); indicator.parameters:addColor("Tclr", "Top Color", "Top Color", core.rgb(0, 255, 0)); indicator.parameters:addColor("Bclr", "Bottom Color", "Bottom Color", core.rgb(255, 0, 0)); indicator.parameters:addInteger("DotSize", "Dot size", "Dot size", 3, 1, 5); end local first; local source = nil; local Frame; local Top, Bottom; function Prepare(nameOnly) source = instance.source; Frame=instance.parameters.Frame; first = source:first()+Frame; local name = profile:id() .. "(" .. source:name() .. ", " .. instance.parameters.Frame .. ")"; instance:name(name); if (nameOnly) then return; end Top = instance:addStream("Top", core.Dot, name .. ".Top", "Top", instance.parameters.Tclr, first); Bottom = instance:addStream("Bottom", core.Dot, name .. ".Bottom", "Bottom", instance.parameters.Bclr, first); Top:setWidth(instance.parameters.DotSize); Bottom:setWidth(instance.parameters.DotSize); end function Update(period, mode) if period>first+Frame then local i; local IsTop, IsBottom=true, true; local period2=period-Frame-1; for i=1, Frame, 1 do if source.high[period2+i-1]<=source.high[period2+i] or source.high[period2-i+1]<=source.high[period2-i] then IsTop=false; end if source.low[period2+i-1]>=source.low[period2+i] or source.low[period2-i+1]>=source.low[period2-i] then IsBottom=false; end end if IsTop then Top[period2]=source.high[period2]; else Top[period2]=nil; end if IsBottom then Bottom[period2]=source.low[period2]; else Bottom[period2]=nil; end end end