如何在PineScript中判断均线是否显示并控制对应标签隐藏？

Yes, you can check if your moving average plots are visible and sync your labels to hide/show alongside them using PineScript's plot.getvisibility() function. Here's how to fix your issue:

1. Store Plot References #

When creating your MA plots, assign them to variables—these act as unique IDs you can use to check visibility later:

//@version=5
indicator("MA with Synced Labels", overlay=true)

// Calculate MAs
ma_50 = ta.sma(close, 50)
ma_200 = ta.sma(close, 200)

// Save plot references
plot_ma_blue = plot(ma_50, color=color.blue, title="50-period MA")
plot_ma_red = plot(ma_200, color=color.red, title="200-period MA")

2. Check Visibility and Draw Labels Conditionally #

Use plot.getvisibility() to fetch the checkbox state from the settings window, then only render labels when the corresponding MA is visible:

// Get visibility state of each MA
is_blue_ma_visible = plot.getvisibility(plot_ma_blue)
is_red_ma_visible = plot.getvisibility(plot_ma_red)

// Draw labels only if the MA is enabled
if is_blue_ma_visible
    label.new(bar_index, ma_50, str.tostring(ma_50, "#.##"), color=color.blue, textcolor=color.white)

if is_red_ma_visible
    label.new(bar_index, ma_200, str.tostring(ma_200, "#.##"), color=color.red, textcolor=color.white)

Key Notes: #

• plot.getvisibility() returns true if the plot is checked in the indicator settings, false otherwise. This directly gives you the checkbox state of your red MA (or any plot you reference).
• This functionality requires PineScript v5—older versions don't support this function.
• After implementing this, your labels will automatically hide/show when you toggle the MA plots in the configuration window.

内容的提问来源于stack exchange，提问作者xarc