-- More information about this indicator can be found at: -- http://fxcodebase.com/code/viewtopic.php?f=17&t=69158 --+------------------------------------------------------------------+ --| Copyright © 2019, 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 | --+------------------------------------------------------------------+ function Init() indicator:name("SSI Overlay"); indicator:description(""); indicator:requiredSource(core.Bar); indicator:type(core.Indicator); indicator.parameters:addColor("color", "Color", "", core.colors().Red); end local source; local ssi; function Prepare(nameOnly) source = instance.source; local name = string.format("%s(%s)", profile:id(), source:name()); instance:name(name); if nameOnly then return ; end instance:ownerDrawn(true); ssi = core.indicators:create("SSI", source, "SSI"); end function Update(period, mode) ssi:update(mode); end local init = false; local pen = 1; function Draw(stage, context) if stage ~= 2 then return; end if not init then init = true; context:createPen(pen, context.SOLID, 1, instance.parameters.color); end local stream = ssi.DATA; local from_bar = math.max(source:first(), context:firstBar() - 1) local to_bar = math.min(context:lastBar(), source:size() - 1) local indi_min, indi_max; for i = from_bar, to_bar, 1 do if stream:hasData(i) then if indi_min == nil then indi_min = stream[i]; indi_max = stream[i]; else if indi_min > stream[i] then indi_min = stream[i]; end if indi_max < stream[i] then indi_max = stream[i]; end end end end if indi_min == nil then return; end local previous_value, previous_x, previous_y; local top = context:top(); local bottom = context:bottom(); local range = bottom - top; local indi_range = indi_max - indi_min; if indi_range == nil then return; end for i = from_bar, to_bar, 1 do local x_center, x_left, x_right = context:positionOfBar(i); if stream:hasData(i) then local y = top + range * (indi_max - stream[i]) / indi_range; if previous_value ~= nil then context:drawLine(pen, previous_x, previous_y, x_center, y); end previous_x = x_center; previous_y = y; previous_value = stream[i]; end end end