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polyline - Pine Script Variable

`polyline`

Overview

Collections of polyline drawings created by your script.

Fields

Field	Type	Description
`polyline.all`	`array<polyline>`	Returns an array containing all current polyline instances drawn by the script.

Remarks

polyline.all: The array is read-only. Index zero of the array references the ID of the oldest polyline object on the chart.

Example

//@version=6
indicator("Polyline cleanup", overlay=true, max_polylines_count=1)

if barstate.islast
    polylines = polyline.all
    if array.size(polylines) > 0
        for i = 0 to array.size(polylines) - 1
            polyline.delete(array.get(polylines, i))

    points = array.new<chart.point>()
    array.push(points, chart.point.from_index(bar_index - 10, low))
    array.push(points, chart.point.from_index(bar_index, high))

    polyline.new(points, curved=false, closed=false,
        line_color=color.new(color.blue, 0))

See Also