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PlantUML Language specification Gantt Diagram

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Gantt-Diagramm

Ein Gantt-Diagramm ist ein leistungsstarkes Werkzeug für das Projektmanagement. Es stellt einen Projektplan visuell dar und ermöglicht es Managern und Teammitgliedern, die Start- und Enddaten des gesamten Projekts auf einen Blick zu sehen. Das Diagramm zeigt Vorgänge oder Aktivitäten entlang einer horizontalen Zeitachse an, wobei die Dauer der einzelnen Vorgänge, ihre Reihenfolge und ihre Überlappung oder Gleichzeitigkeit dargestellt werden.

In einem Gantt-Diagramm wird jeder Vorgang durch einen Balken dargestellt, dessen Länge und Position das Startdatum, die Dauer und das Enddatum des Vorgangs widerspiegelt. Dieses Format erleichtert das Verständnis von Abhängigkeiten zwischen Aufgaben, bei denen eine Aufgabe abgeschlossen sein muss, bevor eine andere beginnen kann. Darüber hinaus können Gantt-Diagramme Meilensteine enthalten, d.h. wichtige Ereignisse oder Ziele in der Projektzeitachse, die durch ein eindeutiges Symbol gekennzeichnet sind.

Im Zusammenhang mit der Erstellung von Gantt-Diagrammen bietet PlantUML mehrere Vorteile. Es bietet einen textbasierten Ansatz für die Diagrammerstellung, der es einfach macht, Änderungen mit Hilfe von Versionskontrollsystemen zu verfolgen. Dieser Ansatz ist besonders vorteilhaft für Teams, die bereits an textbasierte Kodierungsumgebungen gewöhnt sind. Die PlantUML-Syntax für Gantt-Diagramme ist unkompliziert und ermöglicht schnelle Änderungen und Aktualisierungen des Projektzeitplans. Darüber hinaus macht die Integration von PlantUML mit anderen Tools und die Fähigkeit, Diagramme dynamisch aus Text zu generieren, es zu einer vielseitigen Wahl für Teams, die ihre Projektmanagement-Dokumentation automatisieren und rationalisieren wollen. Die Verwendung von PlantUML für Gantt-Diagramme kombiniert somit die Klarheit und Effizienz einer visuellen Projektplanung mit der Flexibilität und Kontrolle eines textbasierten Systems.

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Deklaration von Aufgaben

Der Gantt wird in natürlicher Sprache beschrieben, unter Verwendung sehr einfacher Sätze (Subjekt-Verb-Komplement).

Aufgaben werden mit eckigen Klammern definiert.

Arbeitsbelastung

Die Arbeitsbelastung für jede Aufgabe wird mit dem Verb requires angegeben, das den Arbeitsaufwand in Tagen angibt.

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@startgantt
[Prototype design] requires 15 days
[Test prototype] requires 10 days
-- All example --
[Task 1 (1 day)] requires 1 day
[T2 (5 days)] requires 5 days
[T3 (1 week)] requires 1 week
[T4 (1 week and 4 days)] requires 1 week and 4 days
[T5 (2 weeks)] requires 2 weeks
@endgantt

Eine Woche wird normalerweise als eine Spanne von sieben Tagen verstanden. In Kontexten, in denen bestimmte Tage als "geschlossen" bezeichnet werden (z. B. Wochenenden), kann eine Woche jedoch in Form von "nicht-geschlossenen" Tagen neu definiert werden. Wenn z. B. Samstag und Sonntag als "geschlossen" gekennzeichnet sind, entspricht eine Woche in diesem Zusammenhang einem fünftägigen Arbeitspensum, das den verbleibenden Wochentagen entspricht.

Start

Ihr Beginn wird mit dem Verb start definiert:

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@startgantt
Project starts 2020-07-01
[Prototype design] requires 15 days
[Test prototype] requires 10 days

[Prototype design] starts 2020-07-01
[Test prototype] starts 2020-07-16
@endgantt

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@startgantt
[Prototype design] requires 15 days
[Test prototype] requires  10 days

[Prototype design] starts D+0
[Test prototype] starts D+15
@endgantt

[Ref. für D+nn form: QA-14494]

Ende

Ihr Ende wird mit dem Verb end definiert:

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@startgantt
Project starts 2020-07-01
[Prototype design] requires 15 days
[Test prototype] requires 10 days

[Prototype design] ends 2020-07-15
[Test prototype] ends 2020-07-25
@endgantt

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@startgantt
[Prototype design] requires 15 days
[Test prototype] requires 10 days

[Prototype design] ends D+14
[Test prototype] ends D+24
@endgantt

Start/Ende

Es ist möglich, beide absolut zu definieren, indem man Daten angibt:

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@startgantt
Project starts 2020-07-01
[Prototype design] starts 2020-07-01
[Test prototype] starts 2020-07-16
[Prototype design] ends 2020-07-15
[Test prototype] ends 2020-07-25

@endgantt

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@startgantt
[Prototype design] starts D+0
[Test prototype] starts D+15
[Prototype design] ends D+14
[Test prototype] ends D+24
@endgantt

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One-line declaration (with the and conjunction)

It is possible to combine declaration on one line with the and conjunction.

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@startgantt
Project starts 2020-07-01
[Prototype design] starts 2020-07-01 and ends 2020-07-15
[Test prototype] starts 2020-07-16 and requires 10 days
@endgantt

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Adding constraints

It is possible to add constraints between tasks.

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@startgantt
[Prototype design] requires 15 days
[Test prototype] requires 10 days
[Test prototype] starts at [Prototype design]'s end
@endgantt

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@startgantt
[Prototype design] requires 10 days
[Code prototype] requires 10 days
[Write tests] requires 5 days
[Code prototype] starts at [Prototype design]'s end
[Write tests] starts at [Code prototype]'s start
@endgantt

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Short names or alias

It is possible to define short name for tasks with the as keyword.

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@startgantt
[Prototype design] as [D] requires 15 days
[Test prototype] as [T] requires 10 days
[T] starts at [D]'s end
@endgantt

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Tasks with same name

[Starting with V1.2024.6,] it is possible to have multiple tasks with same name.

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@startgantt
Project starts 2020-11-08
[Task 7 days] as [T7] starts at 2020-11-09
[T7] ends at 2020-11-15
[Task 7 days] as [T7bis] starts at 2020-11-09
[T7bis] ends at 2020-11-15
@endgantt

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@startgantt
[SameTaskName] as [T1] lasts 7 days and is colored in pink
[SameTaskName] as [T2] lasts 3 days and is colored in orange
[T1] -> [T2]
@endgantt

[Ref. QA-12176 and GH-1809]

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Customize colors

It is also possible to customize colors with is colored in.

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@startgantt
[Prototype design] requires 13 days
[Test prototype] requires 4 days
[Test prototype] starts at [Prototype design]'s end
[Prototype design] is colored in Fuchsia/FireBrick
[Test prototype] is colored in GreenYellow/Green
@endgantt

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Completion status

Adding completion depending percentage

You can set the completion status of a task, by the command:

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@startgantt
[foo] requires 21 days
[foo] is 40% completed
[bar] requires 30 days and is 10% complete
@endgantt

Change colour of completion (by style)

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@startgantt

<style>
ganttDiagram {
  task {
    BackGroundColor GreenYellow
    LineColor Green 
    unstarted {
      BackGroundColor Fuchsia 
      LineColor FireBrick
    }
  }
}
</style>

[Prototype design] requires 7 days
[Test prototype 0] requires 4 days
[Test prototype 10] requires 4 days
[Test prototype 20] requires 4 days
[Test prototype 30] requires 4 days
[Test prototype 40] requires 4 days
[Test prototype 50] requires 4 days
[Test prototype 60] requires 4 days
[Test prototype 70] requires 4 days
[Test prototype 80] requires 4 days
[Test prototype 90] requires 4 days
[Test prototype 100] requires 4 days

[Test prototype 0] starts at [Prototype design]'s end
[Test prototype 10] starts at [Prototype design]'s end
[Test prototype 20] starts at [Prototype design]'s end
[Test prototype 30] starts at [Prototype design]'s end
[Test prototype 40] starts at [Prototype design]'s end
[Test prototype 50] starts at [Prototype design]'s end
[Test prototype 60] starts at [Prototype design]'s end
[Test prototype 70] starts at [Prototype design]'s end
[Test prototype 80] starts at [Prototype design]'s end
[Test prototype 90] starts at [Prototype design]'s end
[Test prototype 100] starts at [Prototype design]'s end

[Test prototype 0] is 0% complete
[Test prototype 10] is 10% complete
[Test prototype 20] is 20% complete
[Test prototype 30] is 30% complete
[Test prototype 40] is 40% complete
[Test prototype 50] is 50% complete
[Test prototype 60] is 60% complete
[Test prototype 70] is 70% complete
[Test prototype 80] is 80% complete
[Test prototype 90] is 90% complete
[Test prototype 100] is 100% complete

@endgantt

[Ref. QA-8297]

Change colour of undone part of Task (by style)

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@startgantt
<style>
ganttDiagram {
  task {
    BackGroundColor GreenYellow
    LineColor Green 
  }
  undone {
    BackGroundColor red
  }
}
</style>

[foo] lasts 21 days
[foo] is 40% completed
[bar] lasts 30 days and is 10% complete
@endgantt

[Ref. QA-15299]

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Meilenstein

Sie können Meilensteine mit dem Verb happen definieren.

Relativer Meilenstein (Verwendung von Constraints)

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@startgantt
[Test prototype] requires 10 days
[Prototype completed] happens at [Test prototype]'s end
[Setup assembly line] requires 12 days
[Setup assembly line] starts at [Test prototype]'s end
@endgantt

Absoluter Meilenstein (Verwendung eines festen Datums)

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@startgantt
Project starts 2020-07-01
[Test prototype] requires 10 days
[Prototype completed] happens 2020-07-10
[Setup assembly line] requires 12 days
[Setup assembly line] starts at [Test prototype]'s end
@endgantt

Meilenstein des maximalen Endes von Aufgaben

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@startgantt
[Task1] requires 4 days
then [Task1.1] requires 4 days
[Task1.2] starts at [Task1]'s end and requires 7 days

[Task2] requires 5 days
then [Task2.1] requires 4 days

[MaxTaskEnd] happens at [Task1.1]'s end
[MaxTaskEnd] happens at [Task1.2]'s end
[MaxTaskEnd] happens at [Task2.1]'s end

@endgantt

[Ref. QA-10764]

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Hyperlinks

You can add hyperlinks to tasks.

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@startgantt
[task1] requires 10 days
[task1] links to [[http://plantuml.com]]
@endgantt

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Calendar

You can specify a starting date for the whole project. By default, the first task starts at this date.

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@startgantt
Project starts the 20th of september 2017
[Prototype design] as [TASK1] requires 13 days
[TASK1] is colored in Lavender/LightBlue
@endgantt

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Coloring days

It is possible to add colors to some days.

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@startgantt
Project starts the 2020/09/01 

2020/09/07 is colored in salmon
2020/09/13 to 2020/09/16 are colored in lightblue

[Prototype design] as [TASK1] requires 22 days
[TASK1] is colored in Lavender/LightBlue
[Prototype completed] happens at [TASK1]'s end
@endgantt

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Changing scale

You can change scale for very long project, with one of those parameters: and one of the values:

(See QA-11272, QA-9041 and QA-10948)

Daily (by default)

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@startgantt
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Weekly

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@startgantt
printscale weekly
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

🎉 Copied! 

@startgantt
printscale weekly
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires  20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Monthly

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@startgantt
projectscale monthly
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Quarterly

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@startgantt
projectscale quarterly
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

🎉 Copied! 

@startgantt
projectscale quarterly
Project starts the 1st of october 2020
[Prototype design] as [TASK1] requires 700 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 200 days
[TASK1]->[Testing]

2021-01-18 to 2021-03-22 are colored in salmon 
@endgantt

Yearly

🎉 Copied! 

@startgantt
projectscale yearly
Project starts the 1st of october 2020
[Prototype design] as [TASK1] requires 700 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 200 days
[TASK1]->[Testing]

2021-01-18 to 2021-03-22 are colored in salmon 
@endgantt

Date range with between

Without date range

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@startgantt
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 8 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 3 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

With date range

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@startgantt
Print between 2021-01-12 and 2021-01-22
Saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 8 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 3 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

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Zoom (example for all scale)

You can change zoom, with the parameter:

Zoom on daily (default) scale

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@startgantt
printscale daily
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 8 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires  3 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

🎉 Copied! 

@startgantt
printscale daily zoom 2
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 8 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 3 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

[Ref. QA-13725]

Zoom on weekly scale

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@startgantt
printscale weekly
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

🎉 Copied! 

@startgantt
printscale weekly zoom 4
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Zoom on monthly scale

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@startgantt
projectscale monthly
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

🎉 Copied! 

@startgantt
projectscale monthly zoom 3
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Zoom on quarterly scale

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@startgantt
projectscale quarterly
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

🎉 Copied! 

@startgantt
projectscale quarterly zoom 7
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Zoom on yearly scale

🎉 Copied! 

@startgantt
projectscale yearly
Project starts the 1st of october 2020
[Prototype design] as [TASK1] requires 700 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 200 days
[TASK1]->[Testing]

2021-01-18 to 2021-03-22 are colored in salmon 
@endgantt

🎉 Copied! 

@startgantt
projectscale yearly zoom 2
Project starts the 1st of october 2020
[Prototype design] as [TASK1] requires 700 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 200 days
[TASK1]->[Testing]

2021-01-18 to 2021-03-22 are colored in salmon 
@endgantt

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Weekscale with Weeknumbers or Calendar Date

With Weeknumbers (by default)

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@startgantt
printscale weekly
Project starts the 6th of July 2020
[Task1] on {Alice} requires 2 weeks
[Task2] on {Bob:50%} requires 2 weeks
then [Task3] on {Alice:25%} requires 3 days
@endgantt

With Weeknumbers (starting from 1)

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@startgantt
printscale weekly with week numbering from 1
Project starts the 6th of July 2020
[Task1] on {Alice} requires 2 weeks
[Task2] on {Bob:50%} requires 2 weeks
then [Task3] on {Alice:25%} requires 3 days
@endgantt

[Ref. GH-525]

With specific Weeknumbers (starting from n [including negative integer])

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@startgantt
printscale weekly with week numbering from 11
Project starts the 6th of July 2020
[Task1] on {Alice} requires 2 weeks
[Task2] on {Bob:50%} requires 2 weeks
then [Task3] on {Alice:25%} requires 3 days
@endgantt

🎉 Copied! 

@startgantt
printscale weekly with week numbering from -3
Project starts the 6th of July 2020
[Task1] on {Alice} requires 2 weeks
[Task2] on {Bob:50%} requires 2 weeks
then [Task3] on {Alice:25%} requires 3 days
@endgantt

[Ref. GH-2202]

With Calendar Date

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@startgantt
printscale weekly with calendar date
Project starts the 6th of July 2020
[Task1] on {Alice} requires 2 weeks
[Task2] on {Bob:50%} requires 2 weeks
then [Task3] on {Alice:25%} requires 3 days
@endgantt

[Ref. QA-11630]

Change first day of week

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@startgantt
printscale weekly
weeks starts on Sunday and must have at least 4 days
friday are closed
saturday are closed

Project starts the 1st of january 2025
[Prototype design end] as [TASK1] requires 19 days

[Testing] requires 14 days
[TASK1]->[Testing]

@endgantt

[Ref. QA-11630]

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Close day

It is possible to close some day.

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@startgantt
project starts the 2018/04/09
saturday are closed
sunday are closed
2018/05/01 is closed
2018/04/17 to 2018/04/19 is closed
[Prototype design] requires 14 days
[Test prototype] requires 4 days
[Test prototype] starts at [Prototype design]'s end
[Prototype design] is colored in Fuchsia/FireBrick
[Test prototype] is colored in GreenYellow/Green
@endgantt

Then it is possible to open some closed day.

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@startgantt
2020-07-07 to 2020-07-17 is closed
2020-07-13 is open

Project starts the 2020-07-01
[Prototype design] requires 10 days
Then [Test prototype] requires 10 days
@endgantt

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Definition of a week depending of closed days

A week is a synonym for how many non-closed days are in a week, as:

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@startgantt
Project starts 2021-03-29
[Review 01] happens at 2021-03-29
[Review 02 - 3 weeks] happens on 3 weeks after [Review 01]'s end
[Review 02 - 21 days] happens on 21 days after [Review 01]'s end
@endgantt

So if you specify Saturday and Sunday as closed, a week will be equivalent to 5 days, as:

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@startgantt
Project starts 2021-03-29
saturday are closed
sunday are closed
[Review 01] happens at 2021-03-29
[Review 02 - 3 weeks] happens on 3 weeks after [Review 01]'s end
[Review 02 - 21 days] happens on 21 days after [Review 01]'s end
@endgantt

[Ref. QA-13434]

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Working days

It is possible to manage working days.

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@startgantt

saturday are closed
sunday are closed
2022-07-04 to 2022-07-15 is closed

Project starts 2022-06-27
[task1] starts at 2022-06-27 and requires 1 week
[task2] starts 2 working days after [task1]'s end and requires 3 days

@endgantt

[Ref. QA-16188]

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Simplified task succession

It's possible to use the then keyword to denote consecutive tasks.

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@startgantt
[Prototype design] requires 14 days
then [Test prototype] requires 4 days
then [Deploy prototype] requires 6 days
@endgantt

You can also use arrow ->

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@startgantt
[Prototype design] requires 14 days
[Build prototype] requires 4 days
[Prepare test] requires 6 days
[Prototype design] -> [Build prototype]
[Prototype design] -> [Prepare test]
@endgantt

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Working with resources

You can affect tasks on resources using the on keyword and brackets for resource name.

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@startgantt
[Task1] on {Alice} requires 10 days
[Task2] on {Bob:50%} requires 2 days
then [Task3] on {Alice:25%} requires 1 days
@endgantt

Multiple resources can be assigned to a task:

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@startgantt
[Task1] on {Alice} {Bob} requires 20 days
@endgantt

Resources can be marked as off on specific days:

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@startgantt
project starts on 2020-06-19
[Task1] on {Alice} requires 10 days
{Alice} is off on 2020-06-24 to 2020-06-26
@endgantt

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Hide resources

Without any hiding (by default)

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@startgantt
[Task1] on {Alice} requires 10 days
[Task2] on {Bob:50%} requires 2 days
then [Task3] on {Alice:25%} requires 1 days
then [Task4] on {Alice:25%} {Bob} requires 1 days
@endgantt

Hide resources names

You can hide resources names and percentage, on tasks, using the hide resources names keywords.

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@startgantt
hide resources names
[Task1] on {Alice} requires 10 days
[Task2] on {Bob:50%} requires 2 days
then [Task3] on {Alice:25%} requires 1 days
then [Task4] on {Alice:25%} {Bob} requires 1 days
@endgantt

Hide resources footbox

You can also hide resources names on bottom of the diagram using the hide resources footbox keywords.

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@startgantt
hide resources footbox
[Task1] on {Alice} requires 10 days
[Task2] on {Bob:50%} requires 2 days
then [Task3] on {Alice:25%} requires 1 days
then [Task4] on {Alice:25%} {Bob} requires 1 days
@endgantt

Hide the both (resources names and resources footbox)

You can also hide the both.

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@startgantt
hide resources names
hide resources footbox
[Task1] on {Alice} requires  10 days
[Task2] on {Bob:50%} requires 2 days
then [Task3] on {Alice:25%} requires 1 days
then [Task4] on {Alice:25%} {Bob} requires 1 days
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Horizontal Separator

You can use -- to separate sets of tasks.

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@startgantt
[Task1] requires 10 days
then [Task2] requires 4 days
-- Phase Two --
then [Task3] requires 5 days
then [Task4] requires 6 days
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Vertical Separator

You can add Vertical Separators with the syntax: Separator just [at].

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@startgantt
[task1] requires 1 week
[task2] starts 20 days after [task1]'s end and requires 3 days

Separator just at [task1]'s end
Separator just 2 days after [task1]'s end

Separator just at [task2]'s start
Separator just 2 days before [task2]'s start
@endgantt

[Ref. QA-16247]

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Complex example

It also possible to use the and conjunction.

You can also add delays in constraints.

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@startgantt
[Prototype design] requires 13 days and is colored in Lavender/LightBlue
[Test prototype] requires 9 days and is colored in Coral/Green and starts 3 days after [Prototype design]'s end
[Write tests] requires 5 days and ends at [Prototype design]'s end
[Hire tests writers] requires 6 days and ends at [Write tests]'s start
[Init and write tests report] is colored in Coral/Green
[Init and write tests report] starts 1 day before [Test prototype]'s start and ends at [Test prototype]'s end
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Comments

As is mentioned on Common Commands page:
Everything that starts with simple quote ' is a comment.

You can also put comments on several lines using /' to start and '/ to end.
(i.e.: the first character (except space character) of a comment line must be a simple quote ')

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@startgantt
' This is a comment

[T1] requires 3 days

/' this comment
is on several lines '/

[T2] starts at [T1]'s end and requires 1 day
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Using style

Without style (by default)

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@startgantt
[Task1] requires 20 days
note bottom
  memo1 ...
  memo2 ...
  explanations1 ...
  explanations2 ...
end note
[Task2] requires 4 days
[Task1] -> [Task2]
-- Separator title --
[M1] happens on 5 days after [Task1]'s end
-- end --
@endgantt

With style

You can use style to change rendering of elements.

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@startgantt
<style>
ganttDiagram {
	task {
		FontName Helvetica
		FontColor red
		FontSize 18
		FontStyle bold
		BackGroundColor GreenYellow
		LineColor blue
	}
	milestone {
		FontColor blue
		FontSize 25
		FontStyle italic
		BackGroundColor yellow
		LineColor red
	}
	note {
		FontColor DarkGreen
		FontSize 10
		LineColor OrangeRed
	}
	arrow {
		FontName Helvetica
		FontColor red
		FontSize 18
		FontStyle bold
		BackGroundColor GreenYellow
		LineColor blue
	}
	separator {
		LineColor red
		BackGroundColor green
		FontSize 16
		FontStyle bold
		FontColor purple
	}
}
</style>
[Task1] requires 20 days
note bottom
  memo1 ...
  memo2 ...
  explanations1 ...
  explanations2 ...
end note
[Task2] requires 4 days
[Task1] -> [Task2]
-- Separator title --
[M1] happens on 5 days after [Task1]'s end
-- end --
@endgantt

[Ref. QA-10835, QA-12045, QA-11877 and PR-438]

With style (full example)

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@startgantt
<style>
ganttDiagram {
	task {
		FontName Helvetica
		FontColor red
		FontSize 18
		FontStyle bold
		BackGroundColor GreenYellow
		LineColor blue
	}
	milestone {
		FontColor blue
		FontSize 25
		FontStyle italic
		BackGroundColor yellow
		LineColor red
	}
	note {
		FontColor DarkGreen
		FontSize 10
		LineColor OrangeRed
	}
	arrow {
		FontName Helvetica
		FontColor red
		FontSize 18
		FontStyle bold
		BackGroundColor GreenYellow
		LineColor blue
		LineStyle 8.0;13.0
		LineThickness 3.0
	}
	separator {
		BackgroundColor lightGreen
		LineStyle 8.0;3.0
		LineColor red
		LineThickness 1.0
		FontSize 16
		FontStyle bold
		FontColor purple
		Margin 5
		Padding 20
	}
	timeline {
	    BackgroundColor Bisque
	}
	closed {
		BackgroundColor pink
		FontColor red
	}
}
</style>
Project starts the 2020-12-01

[Task1] requires 10 days
sunday are closed

note bottom
  memo1 ...
  memo2 ...
  explanations1 ...
  explanations2 ...
end note

[Task2] requires 20 days
[Task2] starts 10 days after [Task1]'s end
-- Separator title --
[M1] happens on 5 days after [Task1]'s end

<style>
	separator {
	    LineColor black
		Margin 0
		Padding 0
	}
</style>

-- end --
@endgantt

[Ref. QA-13570, QA-13672]

DONE
Thanks for style for Separator and all style for Arrow (thickness...)

Clean style

With style, you can also clean a Gantt diagram (showing tasks, dependencies and relative durations only - but no actual start date and no actual scale):

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@startgantt
<style>
ganttDiagram {
  timeline {
    LineColor transparent
    FontColor transparent
 }
}
</style>

hide footbox
[Test prototype] requires 7 days
[Prototype completed] happens at [Test prototype]'s end
[Setup assembly line] requires 9 days
[Setup assembly line] starts at [Test prototype]'s end
then [Setup] requires 5 days
[T2] requires 2 days and starts at [Test prototype]'s end
then [T3] requires 3 days
-- end task --
then [T4] requires 2 days
@endgantt

[Ref. QA-13971]

Or:

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@startgantt
<style>
ganttDiagram {
  timeline {
    LineColor transparent
    FontColor transparent
  }
  closed {
    FontColor transparent
  }
}
</style>

hide footbox
project starts the 2018/04/09
saturday are closed
sunday are closed
2018/05/01 is closed
2018/04/17 to 2018/04/19 is closed
[Prototype design] requires 9 days
[Test prototype] requires 5 days
[Test prototype] starts at [Prototype design]'s end
[Prototype design] is colored in Fuchsia/FireBrick
[Test prototype] is colored in GreenYellow/Green
@endgantt

[Ref. QA-13464]

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Add notes

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@startgantt
[task01] requires 15 days
note bottom
  memo1 ...
  memo2 ...
  explanations1 ...
  explanations2 ...
end note

[task01] -> [task02]

@endgantt

Example with overlap.

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@startgantt
[task01] requires 15 days
note bottom
  memo1 ...
  memo2 ...
  explanations1 ...
  explanations2 ...
end note

[task01] -> [task02]
[task03] requires 5 days

@endgantt

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@startgantt

-- test01 --

[task01] requires 4 days
note bottom
'note left
memo1 ...
memo2 ...
explanations1 ...
explanations2 ...
end note

[task02] requires 8 days
[task01] -> [task02]
note bottom
'note left
memo1 ...
memo2 ...
explanations1 ...
explanations2 ...
end note
-- test02 --

[task03] as [t3] requires 7 days
[t3] -> [t4]
@endgantt

DONE
Thanks for correction (of #386 on v1.2020.18) when overlapping

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@startgantt

Project starts 2020-09-01

[taskA] starts 2020-09-01 and requires 3 days
[taskB] starts 2020-09-10 and requires 3 days
[taskB] displays on same row as [taskA]

[task01] starts 2020-09-05 and requires 4 days

then [task02] requires 8 days
note bottom
  note for task02
  more notes
end note

then [task03] requires 7 days
note bottom
  note for task03
  more notes
end note

-- separator --

[taskC] starts 2020-09-02 and requires 5 days
[taskD] starts 2020-09-09 and requires 5 days
[taskD] displays on same row as [taskC]

[task 10] starts 2020-09-05 and requires 5 days
then [task 11] requires 5 days
note bottom
  note for task11
  more notes
end note
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Pause tasks

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@startgantt
Project starts the 5th of december 2018
saturday are closed
sunday are closed
2018/12/29 is opened
[Prototype design] requires 17 days
[Prototype design] pauses on 2018/12/13
[Prototype design] pauses on 2018/12/14
[Prototype design] pauses on monday
[Test prototype] starts at [Prototype design]'s end and requires 2 weeks
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Change link colors

You can change link colors:

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@startgantt
[T1] requires 4 days
[T2] requires 4 days and starts 3 days after [T1]'s end with blue dotted link
[T3] requires 4 days and starts 3 days after [T2]'s end with green bold link
[T4] requires 4 days and starts 3 days after [T3]'s end with green dashed link
@endgantt

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@startgantt
<style>
ganttDiagram {
	arrow {
		LineColor blue
	}
}
</style>
[Prototype design] requires 7 days
[Build prototype] requires 4 days
[Prepare test] requires 6 days
[Prototype design] -[#FF00FF]-> [Build prototype]
[Prototype design] -[dotted]-> [Prepare test]
Then [Run test]  requires 4 days
@endgantt

[Ref. QA-13693]

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Tasks or Milestones on the same line

You can put Tasks or Milestones on the same line, with this syntax:

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@startgantt
[Prototype design] requires 13 days
[Test prototype] requires 4 days and 1 week
[Test prototype] starts 1 week and 2 days after [Prototype design]'s end
[Test prototype] displays on same row as [Prototype design]
[r1] happens on 5 days after [Prototype design]'s end
[r2] happens on 5 days after [r1]'s end
[r3] happens on 5 days after [r2]'s end
[r2] displays on same row as [r1]
[r3] displays on same row as [r1]
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Highlight today

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@startgantt
Project starts the 20th of september 2018
sunday are close
2018/09/21 to 2018/09/23 are colored in salmon
2018/09/21 to 2018/09/30 are named [Vacation in the Bahamas] 

today is 30 days after start and is colored in #AAF
[Foo] happens 40 days after start
[Dummy] requires 10 days and starts 10 days after start

@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Task between two milestones

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@startgantt
project starts on 2020-07-01
[P_start] happens 2020-07-03
[P_end]   happens 2020-07-13
[Prototype design] occurs from [P_start] to [P_end]
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Grammar and verbal form

Verbal form Example
[T] starts
[M] happens

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Add title, header, footer, caption or legend

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@startgantt

header some header

footer some footer

title My title

[Prototype design] requires 13 days

legend
The legend
end legend

caption This is caption

@endgantt

(See also: Common commands)

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Add color on legend

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@startgantt
[Kick off] requires 1 days and is colored in blue
then [Prototype design] requires 5 days
[Test prototype] requires 4 days
[Test prototype] starts at [Prototype design]'s end
[Prototype design] is colored in Green
[Test prototype] is colored in gray

legend
Legend:
|= Color |= Task Type |
|<#gray> | Planned |
|<#Green>| In progress |
|<#blue> | Done |
end legend

@endgantt

[Ref. QA-19021]

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Removing Foot Boxes (example for all scale)

You can use the hide footbox keywords to remove the foot boxes of the gantt diagram (as for sequence diagram).

Examples on:

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@startgantt

hide footbox
title Foot Box removed

[Prototype design] requires 15 days
[Test prototype] requires 10 days
@endgantt

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@startgantt

Project starts the 20th of september 2017
[Prototype design] as [TASK1] requires 13 days
[TASK1] is colored in Lavender/LightBlue

hide footbox
@endgantt

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@startgantt
hide footbox

printscale weekly
saturday are closed
sunday are closed

Project starts the 1st of january 2021
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

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@startgantt

hide footbox

projectscale monthly
Project starts the 20th of september 2020
[Prototype design] as [TASK1] requires 130 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 20 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are named [End's committee]
2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

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@startgantt

hide footbox

projectscale quarterly
Project starts the 1st of october 2020
[Prototype design] as [TASK1] requires 700 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 200 days
[TASK1]->[Testing]

2021-01-18 to 2021-03-22 are colored in salmon 
@endgantt

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@startgantt

hide footbox

projectscale yearly
Project starts the 1st of october 2020
[Prototype design] as [TASK1] requires 700 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 200 days
[TASK1]->[Testing]

2021-01-18 to 2021-03-22 are colored in salmon 
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Language of the calendar

You can choose the language of the Gantt calendar, with the language <xx> command where <xx> is the ISO 639 code of the language.

English (en, by default)

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@startgantt
saturday are closed
sunday are closed

Project starts 2021-01-01
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Deutsch (de)

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@startgantt
language de
saturday are closed
sunday are closed

Project starts 2021-01-01
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Japanese (ja)

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@startgantt
language ja
saturday are closed
sunday are closed

Project starts 2021-01-01
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Chinese (zh)

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@startgantt
language zh
saturday are closed
sunday are closed

Project starts 2021-01-01
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Korean (ko)

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@startgantt
language ko
saturday are closed
sunday are closed

Project starts 2021-01-01
[Prototype design end] as [TASK1] requires 19 days
[TASK1] is colored in Lavender/LightBlue
[Testing] requires 14 days
[TASK1]->[Testing]

2021-01-18 to 2021-01-22 are colored in salmon 
@endgantt

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Delete Tasks or Milestones

You can mark some Tasks or Milestones as deleted instead of normally completed to distinguish tasks that may possibly have been discarded, postponed or whatever.

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@startgantt
[Prototype design] requires 1 weeks
then [Prototype completed] requires 4 days
[End Prototype completed] happens at [Prototype completed]'s end
then [Test prototype] requires 5 days
[End Test prototype] happens at [Test prototype]'s end

[Prototype completed] is deleted
[End Prototype completed] is deleted
@endgantt

[Ref. QA-9129]

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Start a project, a task or a milestone a number of days before or after today

You can start a project, a task or a milestone a number of days before or after today, using the builtin functions %now and %date:

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@startgantt
title Today is %date("YYYY-MM-dd")
!$now = %now()
!$past = %date("YYYY-MM-dd", $now - 14*24*3600)
Project starts $past
today is colored in pink
[foo] requires 10 days
[bar] requires 5 days and starts %date("YYYY-MM-dd", $now + 4*24*3600)
[Tomorrow] happens %date("YYYY-MM-dd", $now + 1*24*3600)
@endgantt

[Ref. QA-16285]

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Position der Beschriftung ändern

Die Beschriftungen befinden sich in der Nähe der Elemente (standardmäßig)

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@startgantt
[Task1] requires 1 days
then [Task2_long_long_long] as [T2] requires 2 days
-- Phase Two --
then [Task3] as [T3] requires 2 days
[Task4] as [T4] requires 1 day
[Task5] as [T5] requires 2 days
[T2] -> [T4]
[T2] -> [T5]
[Task6_long_long_long] as [T6] requires 4 days
[T3] -> [T6]
[T5] -> [T6]
[End] happens 1 day after [T6]'s end
@endgantt

Um die Position der Beschriftung zu ändern, können Sie den Befehl label verwenden:

Etikett in der ersten Spalte

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@startgantt
Label on first column and left aligned
[Task1] requires 1 days
then [Task2_long_long_long] as [T2] requires 2 days
-- Phase Two --
then [Task3] as [T3] requires 2 days
[Task4] as [T4] requires 1 day
[Task5] as [T5] requires 2 days
[T2] -> [T4]
[T2] -> [T5]
[Task6_long_long_long] as [T6] requires 4 days
[T3] -> [T6]
[T5] -> [T6]
[End] happens 1 day after [T6]'s end
@endgantt

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@startgantt
Label on first column and right aligned
[Task1] requires 1 days
then [Task2_long_long_long] as [T2] requires 2 days
-- Phase Two --
then [Task3] as [T3] requires 2 days
[Task4] as [T4] requires 1 day
[Task5] as [T5] requires 2 days
[T2] -> [T4]
[T2] -> [T5]
[Task6_long_long_long] as [T6] requires 4 days
[T3] -> [T6]
[T5] -> [T6]
[End] happens 1 day after [T6]'s end
@endgantt

Etikett### in der letzten Spalte

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@startgantt
Label on last column and left aligned
[Task1] requires 1 days
then [Task2_long_long_long] as [T2] requires 2 days
-- Phase Two --
then [Task3] as [T3] requires 2 days
[Task4] as [T4] requires 1 day
[Task5] as [T5] requires 2 days
[T2] -> [T4]
[T2] -> [T5]
[Task6_long_long_long] as [T6] requires 4 days
[T3] -> [T6]
[T5] -> [T6]
[End] happens 1 day after [T6]'s end
@endgantt

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@startgantt
Label on last column and right aligned
[Task1] requires 1 days
then [Task2_long_long_long] as [T2] requires 2 days
-- Phase Two --
then [Task3] as [T3] requires 2 days
[Task4] as [T4] requires 1 day
[Task5] as [T5] requires 2 days
[T2] -> [T4]
[T2] -> [T5]
[Task6_long_long_long] as [T6] requires 4 days
[T3] -> [T6]
[T5] -> [T6]
[End] happens 1 day after [T6]'s end
@endgantt

[Ref. QA-12433]

Edit in DokuwikiEdit in AsciidocEdit in Markdown
Definition of a month (30 days)

A month is a synonym for 30 days.

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@startgantt
[A] lasts 2 days
[B] lasts 2 weeks
[C] lasts 1 month
@endgantt

[Ref. QA-14494]