Aklamavo ICT KillZones
- 指标
- 版本: 1.0
- 激活: 5
This MetaTrader 5 indicator plots ICT Killzone session markers on the chart using vertical lines. It draws the start and end times for three institutional trading sessions—Asian, London, and New York—for a user-defined number of recent historical days.
No buffers or plots are used; instead, the indicator relies entirely on chart objects (OBJ_VLINE).
The indicator allows full customization of each killzone segment:
General
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DaysToDisplay : number of past days to draw killzones for.
Asian Killzone Parameters
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AsianStartHour , AsianEndHour
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AsianColor , AsianWidth
London Killzone Parameters
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LondonStartHour , LondonEndHour
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LondonColor , LondonWidth
New York Killzone Parameters
-
NYStartHour , NYEndHour
-
NYColor , NYWidth
These inputs determine:
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Where vertical lines are positioned.
-
Their color coding.
-
Their thickness on the chart.
2.1 GetSessionTime()
This function converts a date at midnight into a precise timestamp for a given session hour.
Steps:
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Convert the day’s datetime to an MqlDateTime struct.
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Replace hour/minute/seconds with the session parameters.
-
Convert back to a datetime.
This is how session start/end timestamps are computed reliably.
2.2 DrawLine()
Creates or updates a vertical line object on the chart.
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Uses ObjectCreate() only if the object does not already exist.
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Sets:
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Color ( OBJPROP_COLOR )
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Style ( STYLE_SOLID )
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Width ( OBJPROP_WIDTH )
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Background and Ray properties (disabled).
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The line is always redrawn at the given timestamp.
3. Drawing Killzones3.1 DrawKillzonesForDay()
This function draws six vertical lines per day:
| Killzone | Line 1 | Line 2 |
|---|---|---|
| Asian | Start | End |
| London | Start | End |
| New York | Start | End |
It uses:
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GetSessionTime() → computes timestamps
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DrawLine() → draws each vertical line
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Unique object names → include the day index i
Example:
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KZ_Asian_Start_0
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KZ_London_End_2
-
KZ_NY_Start_4
This ensures no name collisions.
4. Indicator Initialization (OnInit)Actions performed:
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Deletes all existing vertical line objects to avoid duplicates.
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Determines today's midnight timestamp.
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Loops DaysToDisplay times:
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For each previous day, calculates day_start = today_start - i*86400 .
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Calls DrawKillzonesForDay(day_start, i) .
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Finally, ChartRedraw() is called to refresh the drawing immediately.
5. Runtime Calculation ( OnCalculate )The indicator does not need to compute anything per tick or per candle, because all work is done in OnInit() . Therefore:
This makes the indicator very lightweight and CPU-efficient.
