在TradingView的每日开盘处绘制水平射线

Question

尝试在每天开放时绘制水平射线，我的代码由于某种原因没有绘制任何内容

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Answer 1

// mrtuanvn
//@version=4
study("Open Ray to right", overlay=true)
higherTF1 = input("D", type=input.resolution)

dailyopen = security(syminfo.tickerid, higherTF1, open)

line1 = line.new(x1=bar_index-1, y1=dailyopen, x2=bar_index, y2=dailyopen, xloc=xloc.bar_index, style=line.style_solid,extend=extend.right, color=color.green)

line.delete(line1[1])  // remove the previous line when new bar appears