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256 lines
7.8 KiB
Markdown
Executable File
256 lines
7.8 KiB
Markdown
Executable File
---
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order: 4
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---
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# Gant diagrams
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> A Gantt chart is a type of bar chart, first developed by Karol Adamiecki in 1896, and independently by Henry Gantt in the 1910s, that illustrates a project schedule. Gantt charts illustrate the start and finish dates of the terminal elements and summary elements of a project.
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Mermaid can render Gantt diagrams. The code snippet below:
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```
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%% Example of sequence diagram
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gantt
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title A Gantt Diagram
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section Section
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A task :a1, 2014-01-01, 30d
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Another task :after a1 , 20d
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section Another
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Task in sec :2014-01-12 , 12d
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anther task : 24d
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```
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Renders the following diagram:
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```mermaid
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gantt
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title A Gantt Diagram
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dateFormat YYYY-MM-DD
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section Section
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A task :a1, 2014-01-01, 30d
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Another task :after a1 , 20d
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section Another
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Task in sec :2014-01-12 , 12d
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anther task : 24d
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```
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## Syntax
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```
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%% Example with slection of syntaxes
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gantt
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dateFormat YYYY-MM-DD
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title Adding GANTT diagram functionality to mermaid
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section A section
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Completed task :done, des1, 2014-01-06,2014-01-08
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Active task :active, des2, 2014-01-09, 3d
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Future task : des3, after des2, 5d
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Future task2 : des4, after des3, 5d
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section Critical tasks
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Completed task in the critical line :crit, done, 2014-01-06,24h
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Implement parser and jison :crit, done, after des1, 2d
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Create tests for parser :crit, active, 3d
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Future task in critical line :crit, 5d
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Create tests for renderer :2d
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Add to mermaid :1d
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section Documentation
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Describe gantt syntax :active, a1, after des1, 3d
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Add gantt diagram to demo page :after a1 , 20h
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Add another diagram to demo page :doc1, after a1 , 48h
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section Last section
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Describe gantt syntax :after doc1, 3d
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Add gantt diagram to demo page : 20h
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Add another diagram to demo page : 48h
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```
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Renders like below:
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```mermaid
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gantt
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dateFormat YYYY-MM-DD
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title Adding GANTT diagram functionality to mermaid
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section A section
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Completed task :done, des1, 2014-01-06,2014-01-08
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Active task :active, des2, 2014-01-09, 3d
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Future task : des3, after des2, 5d
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Future task2 : des4, after des3, 5d
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section Critical tasks
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Completed task in the critical line :crit, done, 2014-01-06,24h
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Implement parser and jison :crit, done, after des1, 2d
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Create tests for parser :crit, active, 3d
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Future task in critical line :crit, 5d
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Create tests for renderer :2d
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Add to mermaid :1d
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section Documentation
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Describe gantt syntax :active, a1, after des1, 3d
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Add gantt diagram to demo page :after a1 , 20h
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Add another diagram to demo page :doc1, after a1 , 48h
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section Last section
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Describe gantt syntax :after doc1, 3d
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Add gantt diagram to demo page : 20h
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Add another diagram to demo page : 48h
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```
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### title
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Tbd
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## Sections statements
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Tbd
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## Setting dates
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Tbd
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### Date format
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Tbd
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#### Diagram definition
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Input Example Description:
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```
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YYYY 2014 4 digit year
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YY 14 2 digit year
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Q 1..4 Quarter of year. Sets month to first month in quarter.
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M MM 1..12 Month number
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MMM MMMM January..Dec Month name in locale set by moment.locale()
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D DD 1..31 Day of month
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Do 1st..31st Day of month with ordinal
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DDD DDDD 1..365 Day of year
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X 1410715640.579 Unix timestamp
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x 1410715640579 Unix ms timestamp
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Input Example Description
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H HH 0..23 24 hour time
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h hh 1..12 12 hour time used with a A.
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a A am pm Post or ante meridiem
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m mm 0..59 Minutes
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s ss 0..59 Seconds
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S 0..9 Tenths of a second
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SS 0..99 Hundreds of a second
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SSS 0..999 Thousandths of a second
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Z ZZ +12:00 Offset from UTC as +-HH:mm, +-HHmm, or Z
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```
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More info in: http://momentjs.com/docs/#/parsing/string-format/
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#### Scale
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```
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%a - abbreviated weekday name.
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%A - full weekday name.
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%b - abbreviated month name.
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%B - full month name.
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%c - date and time, as "%a %b %e %H:%M:%S %Y".
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%d - zero-padded day of the month as a decimal number [01,31].
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%e - space-padded day of the month as a decimal number [ 1,31]; equivalent to %_d.
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%H - hour (24-hour clock) as a decimal number [00,23].
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%I - hour (12-hour clock) as a decimal number [01,12].
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%j - day of the year as a decimal number [001,366].
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%m - month as a decimal number [01,12].
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%M - minute as a decimal number [00,59].
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%L - milliseconds as a decimal number [000, 999].
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%p - either AM or PM.
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%S - second as a decimal number [00,61].
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%U - week number of the year (Sunday as the first day of the week) as a decimal number [00,53].
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%w - weekday as a decimal number [0(Sunday),6].
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%W - week number of the year (Monday as the first day of the week) as a decimal number [00,53].
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%x - date, as "%m/%d/%Y".
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%X - time, as "%H:%M:%S".
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%y - year without century as a decimal number [00,99].
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%Y - year with century as a decimal number.
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%Z - time zone offset, such as "-0700".
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%% - a literal "%" character.
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```
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More info in: https://github.com/mbostock/d3/wiki/Time-Formatting
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## Styling
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Styling of the a sequence diagram is done by defining a number of css classes. During rendering these classes are extracted from the
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### Classes used
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Class | Description
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--- | ---
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actor | Style for the actor box at the top of the diagram.
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text.actor | Styles for text in the actor box at the top of the diagram.
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actor-line | The vertical line for an actor.
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messageLine0 | Styles for the solid message line.
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messageLine1 | Styles for the dotted message line.
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messageText | Defines styles for the text on the message arrows.
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labelBox | Defines styles label to left in a loop.
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labelText | Styles for the text in label for loops.
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loopText | Styles for the text in the loop box.
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loopLine | Defines styles for the lines in the loop box.
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note | Styles for the note box.
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noteText | Styles for the text on in the note boxes.
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### Sample stylesheet
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```css
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.grid .tick {
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stroke: lightgrey;
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opacity: 0.3;
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shape-rendering: crispEdges;
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}
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.grid path {
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stroke-width: 0;
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}
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#tag {
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color: white;
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background: #FA283D;
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width: 150px;
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position: absolute;
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display: none;
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padding:3px 6px;
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margin-left: -80px;
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font-size: 11px;
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}
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#tag:before {
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border: solid transparent;
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content: ' ';
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height: 0;
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left: 50%;
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margin-left: -5px;
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position: absolute;
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width: 0;
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border-width: 10px;
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border-bottom-color: #FA283D;
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top: -20px;
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}
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.taskText {
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fill:white;
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text-anchor:middle;
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}
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.taskTextOutsideRight {
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fill:black;
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text-anchor:start;
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}
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.taskTextOutsideLeft {
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fill:black;
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text-anchor:end;
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}
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```
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## Configuration
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Is it possible to adjust the margins for rendering the sequence diagram.
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This is done by defining the **sequenceConfig** part of the configuration object. Read more about it [here](http://knsv.github.io/mermaid/index.html#configuration28). How to use
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the CLI is described in the [mermaidCLI]((http://knsv.github.io/mermaid/index.html#mermaidCLI) page.
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