如何显示box.new缺口点数并隐藏已回补缺口的标签？

问题现状 #

现有缺口显示脚本可通过box.new正常绘制缺口，但存在两个未实现的需求：

• 已回补的缺口标签无法自动隐藏
• 无法显示缺口上下沿的点数（pips）

核心优化点及实现代码 #

1. 自动隐藏已回补缺口的标签 #

解决思路：将每个缺口的标签与对应的box绑定存储在数组中，当检测到缺口回补并删除box时，同步删除对应标签。

2. 显示缺口上下沿点数 #

解决思路：通过syminfo.mintick获取品种最小变动单位，结合品种类型（JPY/非JPY）计算缺口点数，将其添加到标签文本中。

修改后的完整代码 #

// This source code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © ArthurBuyStock
//@version=5
indicator("Gap", overlay = true)

b = request.security(syminfo.tickerid, 'W', bar_index, lookahead = barmerge.lookahead_on)
h = request.security(syminfo.tickerid, 'D', high[1], lookahead = barmerge.lookahead_on)
l = request.security(syminfo.tickerid, 'D', low[1], lookahead = barmerge.lookahead_on)

// 新增：存储缺口标签的数组，与box数组一一对应
var label[] gapLabels = array.new_label()

string nintendo = input.string("Intuition", "Type", options = ["True", "Fix", "Intuition"])
var box[] bricks = array.new_box()

// 适配点数计算：JPY品种1点=0.01，其他品种1点=0.0001
pipMultiplier = syminfo.mintick == 0.01 ? 1 : 100

switch nintendo
    "True" => 
        if b != b[1]
            if open > high[1]
                boxId = box.new(bar_index - 1, open, bar_index, close[1], na, extend = extend.right, bgcolor = color.green)
                array.unshift(bricks, boxId)
                // 计算缺口点数并创建标签
                gapPips = (open - close[1]) / syminfo.mintick / pipMultiplier
                labelId = label.new(bar_index, na, str.format("Bull Gap: %.2f pips", gapPips), color=color.green, textcolor=color.white, style=label.style_label_up, yloc=yloc.belowbar)
                array.unshift(gapLabels, labelId)
            else if open < low[1]
                boxId = box.new(bar_index - 1, close[1], bar_index, open, na, extend = extend.right, bgcolor = color.red)
                array.unshift(bricks, boxId)
                gapPips = (close[1] - open) / syminfo.mintick / pipMultiplier
                labelId = label.new(bar_index-1, na, str.format("Bear Gap: %.2f pips", gapPips), color=color.red, textcolor=color.white, style=label.style_label_down, yloc=yloc.abovebar)
                array.unshift(gapLabels, labelId)
    "Fix" => 
        if b != b[1]
            if open > h
                boxId = box.new(bar_index - 1, open, bar_index, close[1], na, extend = extend.right, bgcolor = na)
                array.unshift(bricks, boxId)
                gapPips = (open - close[1]) / syminfo.mintick / pipMultiplier
                labelId = label.new(bar_index, na, str.format("Bull Gap: %.2f pips", gapPips), color=color.green, textcolor=color.white, style=label.style_label_up, yloc=yloc.belowbar)
                array.unshift(gapLabels, labelId)
            else if open < l
                boxId = box.new(bar_index - 1, close[1], bar_index, open, na, extend = extend.right, bgcolor = na)
                array.unshift(bricks, boxId)
                gapPips = (close[1] - open) / syminfo.mintick / pipMultiplier
                labelId = label.new(bar_index-1, na, str.format("Bear Gap: %.2f pips", gapPips), color=color.red, textcolor=color.white, style=label.style_label_down, yloc=yloc.abovebar)
                array.unshift(gapLabels, labelId)
    "Intuition" =>
        if open > high[1] 
            boxId = box.new(left= bar_index - 1, top= open, right= bar_index, bottom = high[1], border_width=1, extend = extend.right, border_color = color.new(color.green, 100))
            array.unshift(bricks, boxId)
            gapPips = (open - high[1]) / syminfo.mintick / pipMultiplier
            labelId = label.new(bar_index, na, str.format("Bull Gap: %.2f pips", gapPips), color=color.green, textcolor=color.white, style=label.style_label_up, yloc=yloc.belowbar)
            array.unshift(gapLabels, labelId)
        else if open < low[1]
            boxId = box.new(left= bar_index - 1, top= low[1], right=bar_index, bottom= open, border_width=1, extend = extend.right, border_color = color.new(color.red, 100))
            array.unshift(bricks, boxId)
            gapPips = (low[1] - open) / syminfo.mintick / pipMultiplier
            labelId = label.new(bar_index-1, na, str.format("Bear Gap: %.2f pips", gapPips), color=color.red, textcolor=color.white, style=label.style_label_down, yloc=yloc.abovebar)
            array.unshift(gapLabels, labelId)

// 缺口回补检测：同步删除box和对应标签
if array.size(bricks) > 0
    if array.size(bricks) == 1
        boxId = array.get(bricks,0)
        if high >= box.get_top(boxId) and low <= box.get_bottom(boxId)
            box.delete(boxId)
            label.delete(array.get(gapLabels,0))
            array.remove(bricks,0)
            array.remove(gapLabels,0)
        else
            if b == b[1]
                if (low[1] <= box.get_bottom(boxId) and high >= box.get_top(boxId)) or (high[1] >= box.get_top(boxId) and low <= box.get_bottom(boxId))
                    box.delete(boxId)
                    label.delete(array.get(gapLabels,0))
                    array.remove(bricks,0)
                    array.remove(gapLabels,0)
    else
        t = 0
        for i = 0 to array.size(bricks) - 1
            boxId = array.get(bricks,i - t)
            labelId = array.get(gapLabels,i - t)
            if high >= box.get_top(boxId) and low <= box.get_bottom(boxId)
                box.delete(boxId)
                label.delete(labelId)
                array.remove(bricks,i - t)
                array.remove(gapLabels,i - t)
                t := t + 1
            else
                if i > 0
                    if (low[1] <= box.get_bottom(boxId) and high >= box.get_top(boxId)) or (high[1] >= box.get_top(boxId) and low <= box.get_bottom(boxId))
                        box.delete(boxId)
                        label.delete(labelId)
                        array.remove(bricks,i - t)
                        array.remove(gapLabels,i - t)
                        t := t + 1

// 缺口box更新逻辑（保留原逻辑）
if array.size(bricks) > 0
    r = 0
    g = 0
    for i = 0 to array.size(bricks) - 1
        boxId = array.get(bricks,i)
        if high < box.get_top(boxId) and low > box.get_bottom(boxId)
            if high[1] <= box.get_bottom(boxId)
                box.set_bottom(boxId, high)
            if low[1] >= box.get_top(boxId)
                box.set_top(boxId, low)
        else
            if box.get_top(boxId) > low and low > box.get_bottom(boxId)
                box.set_top(boxId, low)
            if box.get_top(boxId) > high and high > box.get_bottom(boxId)
                box.set_bottom(boxId, high)
                
        if close >= box.get_top(boxId)
            box.set_bgcolor(boxId, color.new(color.green, 50)) 
            g := g + 20
        else if close <= box.get_bottom(boxId)
            box.set_bgcolor(boxId, color.new(color.red, 50)) 
            r := r + 20

关键优化说明 #

• 标签与box绑定：新增gapLabels数组，每个box创建时同步生成对应标签并加入数组，删除box时同步删除标签
• 点数适配计算：通过pipMultiplier自动适配JPY与非JPY品种的点数规则，用str.format格式化点数显示精度
• 回补同步处理：在所有缺口回补的判断分支中，均添加了标签删除逻辑，确保已回补缺口的标签自动隐藏

内容的提问来源于stack exchange，提问作者tomcraziest