OPEN-SOURCE SCRIPT
Meridian Session Cartography [JOAT]
Meridian Session Cartography [JOAT]
Introduction
Meridian Session Cartography is an open-source session-structure overlay designed to map intraday market geography through Asia, London, New York, and one fully custom session. The indicator tracks each session's developing high, low, open, midpoint, previous-day references, and confirmed liquidity sweeps, then organizes those references into a clean institutional chart layout.
The problem Meridian solves is session context. Many intraday decisions fail not because the setup is invalid, but because the trader is reading a local move without understanding which session created the range, where the day is trading relative to prior-day references, and whether liquidity has already been swept. Meridian turns that information into a persistent map.
Core Concepts
1. Timezone-Safe Session Tracking
Each session is evaluated through explicit session windows and a user-selected timezone, allowing the script to adapt to regional workflows without hard-coding exchange assumptions.
Pine Script®
2. Session Range Construction
Every active session continuously updates its high, low, midpoint, and opening price. These references remain actionable because they are tied to actual session development instead of static preset levels.
3. Previous-Day Reference Logic
Previous-day high, low, open, and close are requested from the daily context using non-lookahead calls. These levels frame the broader day structure around which the active session range is operating.
4. Confirmed Sweep Detection
The indicator identifies confirmed buy-side and sell-side sweeps around tracked extremes, helping the user recognize when a session has already consumed nearby liquidity.
5. Managed Object Layout
Boxes, lines, and labels are retained through capped arrays and automatically cleaned to avoid chart clutter and object-budget drift.
Features
Input Parameters
Core:
Per-Session Blocks:
Levels and Display:
How to Use This Indicator
Step 1: Identify the active session
Use the dashboard to confirm which session currently governs price. This gives immediate context for interpreting local range behavior.
Step 2: Compare the active session to the day
Check the relationship between the active session range and previous-day high/low. This helps distinguish local noise from meaningful day-level expansion.
Step 3: Monitor midpoint and open behavior
Session midpoints and opens often act as practical mean-reversion or continuation checkpoints during intraday trading.
Step 4: Watch sweep status before fading or chasing
If the session has already swept one side of liquidity, that changes the quality of any breakout or reversal idea built near the same reference.
Indicator Limitations
Originality Statement
Meridian Session Cartography is original in the way it combines timezone-safe multi-session mapping, previous-day references, midpoint and open logic, confirmed sweep detection, and managed chart-object cleanup into one publication-ready intraday overlay. It is not a simple session shading script or a basic high/low plotter.
Disclaimer
This indicator is provided for educational and informational purposes only. It is not financial advice. Session levels and sweep readings are contextual tools and can fail in volatile or atypical conditions. Trading involves risk, including the risk of loss.
Introduction
Meridian Session Cartography is an open-source session-structure overlay designed to map intraday market geography through Asia, London, New York, and one fully custom session. The indicator tracks each session's developing high, low, open, midpoint, previous-day references, and confirmed liquidity sweeps, then organizes those references into a clean institutional chart layout.
The problem Meridian solves is session context. Many intraday decisions fail not because the setup is invalid, but because the trader is reading a local move without understanding which session created the range, where the day is trading relative to prior-day references, and whether liquidity has already been swept. Meridian turns that information into a persistent map.
Core Concepts
1. Timezone-Safe Session Tracking
Each session is evaluated through explicit session windows and a user-selected timezone, allowing the script to adapt to regional workflows without hard-coding exchange assumptions.
2. Session Range Construction
Every active session continuously updates its high, low, midpoint, and opening price. These references remain actionable because they are tied to actual session development instead of static preset levels.
3. Previous-Day Reference Logic
Previous-day high, low, open, and close are requested from the daily context using non-lookahead calls. These levels frame the broader day structure around which the active session range is operating.
4. Confirmed Sweep Detection
The indicator identifies confirmed buy-side and sell-side sweeps around tracked extremes, helping the user recognize when a session has already consumed nearby liquidity.
5. Managed Object Layout
Boxes, lines, and labels are retained through capped arrays and automatically cleaned to avoid chart clutter and object-budget drift.
Features
- Four configurable session blocks: Asia, London, New York, and one custom session
- Range geometry: High, low, midpoint, and opening references for each session
- Previous-day levels: Prior day high, low, open, and close included in the same framework
- Confirmed sweep logic: Liquidity sweep status updates only after bar confirmation
- Reference-level extension: Session levels can project forward for practical intraday use
- Chart-cleaning controls: Managed limits for labels, boxes, and lines
- Top-right dashboard: Active session, day range, sweep status, and nearest level are summarized continuously
Input Parameters
Core:
- Timezone
- Active Days To Retain
- Level Extend Bars
- Max Session Objects
Per-Session Blocks:
- Show Session toggle
- Session window
- Bull and bear colors
- Range fill color
Levels and Display:
- Show Previous Day Levels
- Show Opens
- Show Midpoints
- Show Range Zones
- Show Sweep Labels
- Show Candle Tint
- Dashboard position and size
How to Use This Indicator
Step 1: Identify the active session
Use the dashboard to confirm which session currently governs price. This gives immediate context for interpreting local range behavior.
Step 2: Compare the active session to the day
Check the relationship between the active session range and previous-day high/low. This helps distinguish local noise from meaningful day-level expansion.
Step 3: Monitor midpoint and open behavior
Session midpoints and opens often act as practical mean-reversion or continuation checkpoints during intraday trading.
Step 4: Watch sweep status before fading or chasing
If the session has already swept one side of liquidity, that changes the quality of any breakout or reversal idea built near the same reference.
Indicator Limitations
- Session-based indicators are highly sensitive to the chosen timezone and should be configured intentionally
- Sweep detection confirms after the bar closes, which is deliberate non-repainting behavior
- Very low-liquidity markets can produce irregular session geometry
- The script maps context and liquidity behavior; it does not generate full trade plans by itself
Originality Statement
Meridian Session Cartography is original in the way it combines timezone-safe multi-session mapping, previous-day references, midpoint and open logic, confirmed sweep detection, and managed chart-object cleanup into one publication-ready intraday overlay. It is not a simple session shading script or a basic high/low plotter.
Disclaimer
This indicator is provided for educational and informational purposes only. It is not financial advice. Session levels and sweep readings are contextual tools and can fail in volatile or atypical conditions. Trading involves risk, including the risk of loss.
Mã nguồn mở
Theo đúng tinh thần TradingView, tác giả của tập lệnh này đã công bố nó dưới dạng mã nguồn mở, để các nhà giao dịch có thể xem xét và xác minh chức năng. Chúc mừng tác giả! Mặc dù bạn có thể sử dụng miễn phí, hãy nhớ rằng việc công bố lại mã phải tuân theo Nội quy.
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t.me/jackofalltradesvip 🃏
Thông báo miễn trừ trách nhiệm
Thông tin và các ấn phẩm này không nhằm mục đích, và không cấu thành, lời khuyên hoặc khuyến nghị về tài chính, đầu tư, giao dịch hay các loại khác do TradingView cung cấp hoặc xác nhận. Đọc thêm tại Điều khoản Sử dụng.
Mã nguồn mở
Theo đúng tinh thần TradingView, tác giả của tập lệnh này đã công bố nó dưới dạng mã nguồn mở, để các nhà giao dịch có thể xem xét và xác minh chức năng. Chúc mừng tác giả! Mặc dù bạn có thể sử dụng miễn phí, hãy nhớ rằng việc công bố lại mã phải tuân theo Nội quy.
The AI Trading Ecosystem, Built to win trades 📈
Get Full Access 👇
jackofalltrades.vip 🌐
t.me/jackofalltradesvip 🃏
Get Full Access 👇
jackofalltrades.vip 🌐
t.me/jackofalltradesvip 🃏
Thông báo miễn trừ trách nhiệm
Thông tin và các ấn phẩm này không nhằm mục đích, và không cấu thành, lời khuyên hoặc khuyến nghị về tài chính, đầu tư, giao dịch hay các loại khác do TradingView cung cấp hoặc xác nhận. Đọc thêm tại Điều khoản Sử dụng.