GridWB3 V7: Free TradingView Indicator (Pine Script)

Add It to Your TradingView Chart

1Copy the scriptPress Copy script above, or the copy button on the code below.
2Open the Pine EditorOpen a TradingView chart and choose Pine Editor at the bottom of the screen.
3Paste over the templateCreate a new indicator, select all of the template text and paste. Press Save and give it a name.
4Add it to the chartPress Add to chart, then adjust the settings with the gear icon next to its name.

Source Code

139 lines of Pine Script v6 from GridWB3_v7.txt, published under MPL-2.0 (file header). Keep the author's credit and licence lines when you reuse it.

GridWB3_v7.txt

// This Pine Script® code is subject to the terms of the Mozilla Public License 2.0 at https://mozilla.org/MPL/2.0/
// © ekmchiu

//@version=6
indicator("GridWB3 V7", "GridWB3 V7", overlay = true, max_lines_count = 500, max_boxes_count = 50)

// --- Inputs ---
grpScale   = "Auto-Scaling Mode"
scaleMode  = input.string("Full Visible Screen", "Scaling Mode", options = ["Full Visible Screen", "Fixed Historical Dates"], group = grpScale)
autoGrids  = input.int(3, "Grids Count", minval = 1, maxval = 7, group = grpScale)

grpCalc    = "Fixed Date Settings (Used if Mode = Fixed Historical Dates)"
startDate  = input.time(timestamp("2024-12-20 00:00:00 +0800"), "Start Date", group = grpCalc)
endDate    = input.time(timestamp("2027-12-17 00:00:00 +0800"), "End Date", group = grpCalc)

// --- Style Inputs ---
edgeAdjust = input.int(0, "Fine-tune right edge (bars)", minval = -10, maxval = 10, group = "Grid")
gridCol    = input.color(color.new(color.blue, 0),  "Color A (grid 0,2,4...)", group = "Style")
altCol     = input.color(color.new(color.red, 0),   "Color B (grid 1,3,5...)", group = "Style")
diagCol    = input.color(color.new(color.blue, 0),  "Slope color",            group = "Style")
fillCol    = input.color(color.new(color.gray, 92), "Box fill",               group = "Style")
gridTransp = input.int(40, "Grid transparency", minval = 0, maxval = 100, group = "Style")
diagTransp = input.int(40, "Slope transparency", minval = 0, maxval = 100, group = "Style")
gridW      = input.int(1, "Grid width",  minval = 1, maxval = 4, group = "Style")
diagW      = input.int(1, "Slope width", minval = 1, maxval = 4, group = "Style")

// Apply transparency
colGrid = color.new(gridCol, gridTransp)
colAlt  = color.new(altCol,  gridTransp)
colDiag = color.new(diagCol, diagTransp)

// --- Track Bar Indices for Visible Screen ---
int visLeftBar  = ta.valuewhen(time <= chart.left_visible_bar_time, bar_index, 0)
int visRightBar = ta.valuewhen(time <= chart.right_visible_bar_time, bar_index, 0)

// --- Execution on Last Bar ---
if barstate.islast
    int biL = 0
    int biR = 0
    float pTop = 0.0
    float pBot = 0.0

    if scaleMode == "Full Visible Screen"
        // Get visible bar index boundaries
        biL := na(visLeftBar) ? 0 : visLeftBar
        biR := (na(visRightBar) ? bar_index : visRightBar) + edgeAdjust

        // Calculate highest high and lowest low across the visible range
        int visibleBars = math.max(1, bar_index - biL + 1)
        pTop := ta.highest(high, visibleBars)
        pBot := ta.lowest(low, visibleBars)
    else
        // Fallback to historical date calculations
        biL := ta.valuewhen(time <= startDate, bar_index, 0)
        biR := ta.valuewhen(time <= endDate, bar_index, 0)
        if endDate > time
            biR := bar_index + int(math.round((endDate - time) / (timeframe.in_seconds() * 1000.0))) + edgeAdjust
        
        int spanBars = math.max(1, bar_index - biL + 1)
        pTop := ta.highest(high, spanBars)
        pBot := ta.lowest(low, spanBars)

    float dh = pTop - pBot
    int span = biR - biL

    // Outer box
    box.new(biL, pTop, biR, pBot,
         border_color = colGrid, border_width = gridW, bgcolor = fillCol,
         xloc = xloc.bar_index)

    // Unit boundaries
    if autoGrids > 1
        for i = 1 to autoGrids - 1
            int bx = biL + int(math.round(span * i / float(autoGrids)))
            line.new(bx, pTop, bx, pBot, xloc = xloc.bar_index, color = colGrid, width = gridW)

    // Per unit grid & slopes
    for i = 0 to autoGrids - 1
        int xL = biL + int(math.round(span * i / float(autoGrids)))
        int xR = biL + int(math.round(span * (i + 1) / float(autoGrids)))
        int wu = xR - xL

        int q1 = xL + int(math.round(wu * 0.25))
        int q2 = xL + int(math.round(wu * 0.50))
        int q3 = xL + int(math.round(wu * 0.75))
        int xM = q2

        lineCol = i % 2 == 0 ? colGrid : colAlt

        float yB = pBot
        float yT = pTop
        float yM = pBot + dh * 0.5

        // Horizontal lines
        line.new(xL, pBot + dh * 0.25, xR, pBot + dh * 0.25, xloc = xloc.bar_index, color = lineCol, width = gridW)
        line.new(xL, pBot + dh * 0.5,  xR, pBot + dh * 0.5,  xloc = xloc.bar_index, color = lineCol, width = gridW)
        line.new(xL, pBot + dh * 0.75, xR, pBot + dh * 0.75, xloc = xloc.bar_index, color = lineCol, width = gridW)

        // Vertical lines
        line.new(q1, pTop, q1, pBot, xloc = xloc.bar_index, color = lineCol, width = gridW)
        line.new(q2, pTop, q2, pBot, xloc = xloc.bar_index, color = lineCol, width = gridW)
        line.new(q3, pTop, q3, pBot, xloc = xloc.bar_index, color = lineCol, width = gridW)

        // Slopes
        line.new(xL, yT, xM, yB, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xL, yT, xR, yM, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xL, yT, xR, yB, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xL, yB, xM, yT, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xL, yB, xR, yM, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xL, yB, xR, yT, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xR, yT, xM, yB, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xR, yT, xL, yM, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xR, yT, xL, yB, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xR, yB, xM, yT, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xR, yB, xL, yM, xloc = xloc.bar_index, color = colDiag, width = diagW)
        line.new(xR, yB, xL, yT, xloc = xloc.bar_index, color = colDiag, width = diagW)

    // --- Bottom-Left Info Table ---
    var table infoTable = table.new(position = position.bottom_right, columns = 2, rows = 6, 
                                    bgcolor = color.new(color.yellow, 20), 
                                    border_width = 1, border_color = color.gray)
    
    table.cell(infoTable, 0, 0, "Param", bgcolor = color.navy, text_color = color.white, text_size = size.small)
    table.cell(infoTable, 1, 0, syminfo.ticker + " (" + scaleMode + ")", bgcolor = color.navy, text_color = color.white, text_size = size.small)

    table.cell(infoTable, 0, 1, "Left Bar / Start", text_color = color.gray, text_size = size.small)
    table.cell(infoTable, 1, 1, str.tostring(biL), text_color = color.white, text_size = size.small)

    table.cell(infoTable, 0, 2, "High Price (p1)", text_color = color.gray, text_size = size.small)
    table.cell(infoTable, 1, 2, str.tostring(pTop, "#.##"), text_color = color.green, text_size = size.small)

    table.cell(infoTable, 0, 3, "Right Bar / End", text_color = color.gray, text_size = size.small)
    table.cell(infoTable, 1, 3, str.tostring(biR), text_color = color.white, text_size = size.small)

    table.cell(infoTable, 0, 4, "Low Price (p2)", text_color = color.gray, text_size = size.small)
    table.cell(infoTable, 1, 4, str.tostring(pBot, "#.##"), text_color = color.red, text_size = size.small)

    table.cell(infoTable, 0, 5, "Grids Count", text_color = color.gray, text_size = size.small)
    table.cell(infoTable, 1, 5, str.tostring(autoGrids), text_color = color.yellow, text_size = size.small)

Overview

Full Visible Screen uses the highest high and lowest low of the bars currently on screen, while Fixed Historical Dates uses a chosen start and end date. The box is divided into one to seven alternating-colour units with diagonal lines. A bar offset adjusts the right edge, and colours, transparency and widths are adjustable. It is a drawing aid and gives no signals.

Visible-screen or fixed-date scaling modes
Box from highest high and lowest low of the range
One to seven alternating grid units
Right-edge adjustment and style options

Details

Published by

cckmchiu-gapps on GitHub

Code credit

ekmchiu, as written in the script's header

Type

Indicator, Pine Script v6

Draws

On the price chart

Markets

Any symbol

Timeframes

Any timeframe

Risk Notes

No repainting, lookahead or stacked entries were found in its code or README. That says nothing about how well it works: test it first.

File

GridWB3_v7.txt

Repository

github.com/cckmchiu-gapps/pinescripts. See its other scripts in the library

Settings

The inputs you can change from the gear icon on the chart. Defaults are the author's.

Setting	Type	Default	Variable
Scaling Mode	`string`	`Full Visible Screen`	`scaleMode`
Grids Count	`int`	`3`	`autoGrids`
Start Date	`time`	`timestamp("2024-12-20 00:00:00 +0800")`	`startDate`
End Date	`time`	`timestamp("2027-12-17 00:00:00 +0800")`	`endDate`
Fine-tune right edge (bars)	`int`	`0`	`edgeAdjust`
Color A (grid 0,2,4...)	`color`	`color.new(color.blue, 0)`	`gridCol`
Color B (grid 1,3,5...)	`color`	`color.new(color.red, 0)`	`altCol`
Slope color	`color`	`color.new(color.blue, 0)`	`diagCol`
Box fill	`color`	`color.new(color.gray, 92)`	`fillCol`
Grid transparency	`int`	`40`	`gridTransp`
Slope transparency	`int`	`40`	`diagTransp`
Grid width	`int`	`1`	`gridW`

Show all 13 settings

Setting	Type	Default	Variable
Slope width	`int`	`1`	`diagW`

Third-party code. ForexR did not write, test or endorse this script, and the summary above was generated automatically from its code and README. Indicators describe the past, and a strategy's backtest can look better than live trading, especially when a script repaints. Check it in the Strategy Tester and on a demo account before you rely on it.

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