mirror of
https://github.com/mermaid-js/mermaid.git
synced 2025-09-21 08:19:43 +02:00
Merge branch 'develop' into pr/tomperr/3923
* develop: (783 commits) chore(deps): update all minor dependencies chore: Run codecov based on E2E test status change REAMDME.md coverage from coveralls into codecov Add codecov.yaml Upload E2E set normal mode for vitest coverage Fix path name Add codecov to unit tests Add codecov to E2E chore: Add coverage scripts chore: add excludes chore: update deps Merge coverages Add coverage paths Rebuild chore: update pnpm Add coverage for E2E tests rename plugin variable into info in infoDetector.ts remove cypress/platform/index.html update pnpm-lock.yaml ...
This commit is contained in:
Sidharth Vinod
@@ -1,10 +1,15 @@
|
||||
---
|
||||
title: Flowcharts Syntax
|
||||
outline: 'deep' # shows all h3 headings in outline in Vitepress
|
||||
---
|
||||
|
||||
# Flowcharts - Basic Syntax
|
||||
|
||||
All Flowcharts are composed of **nodes**, the geometric shapes and **edges**, the arrows or lines. The mermaid code defines the way that these **nodes** and **edges** are made and interact.
|
||||
Flowcharts are composed of **nodes** (geometric shapes) and **edges** (arrows or lines). The Mermaid code defines how nodes and edges are made and accommodates different arrow types, multi-directional arrows, and any linking to and from subgraphs.
|
||||
|
||||
It can also accommodate different arrow types, multi directional arrows, and linking to and from subgraphs.
|
||||
|
||||
> **Important note**: Do not type the word "end" as a Flowchart node. Capitalize all or any one the letters to keep the flowchart from breaking, i.e, "End" or "END". Or you can apply this [workaround](https://github.com/mermaid-js/mermaid/issues/1444#issuecomment-639528897).
|
||||
```warning
|
||||
If you are using the word "end" in a Flowchart node, capitalize the entire word or any of the letters (e.g., "End" or "END"), or apply this [workaround](https://github.com/mermaid-js/mermaid/issues/1444#issuecomment-639528897). Typing "end" in all lowercase letters will break the Flowchart.
|
||||
```
|
||||
|
||||
### A node (default)
|
||||
|
||||
@@ -16,7 +21,13 @@ flowchart LR
|
||||
id
|
||||
```
|
||||
|
||||
> **Note** The id is what is displayed in the box.
|
||||
```note
|
||||
The id is what is displayed in the box.
|
||||
```
|
||||
|
||||
```tip
|
||||
Instead of `flowchart` one can also use `graph`.
|
||||
```
|
||||
|
||||
### A node with text
|
||||
|
||||
@@ -32,7 +43,30 @@ flowchart LR
|
||||
id1[This is the text in the box]
|
||||
```
|
||||
|
||||
## Graph
|
||||
#### Unicode text
|
||||
|
||||
Use `"` to enclose the unicode text.
|
||||
|
||||
```mermaid-example
|
||||
flowchart LR
|
||||
id["This ❤ Unicode"]
|
||||
```
|
||||
|
||||
#### Markdown formatting
|
||||
|
||||
Use double quotes and backticks "\` text \`" to enclose the markdown text.
|
||||
|
||||
```mermaid-example
|
||||
%%{init: {"flowchart": {"htmlLabels": false}} }%%
|
||||
flowchart LR
|
||||
markdown["`This **is** _Markdown_`"]
|
||||
newLines["`Line1
|
||||
Line 2
|
||||
Line 3`"]
|
||||
markdown --> newLines
|
||||
```
|
||||
|
||||
### Direction
|
||||
|
||||
This statement declares the direction of the Flowchart.
|
||||
|
||||
@@ -50,15 +84,13 @@ flowchart LR
|
||||
Start --> Stop
|
||||
```
|
||||
|
||||
## Flowchart Orientation
|
||||
|
||||
Possible FlowChart orientations are:
|
||||
|
||||
- TB - top to bottom
|
||||
- TD - top-down/ same as top to bottom
|
||||
- BT - bottom to top
|
||||
- RL - right to left
|
||||
- LR - left to right
|
||||
- TB - Top to bottom
|
||||
- TD - Top-down/ same as top to bottom
|
||||
- BT - Bottom to top
|
||||
- RL - Right to left
|
||||
- LR - Left to right
|
||||
|
||||
## Node shapes
|
||||
|
||||
@@ -115,16 +147,7 @@ flowchart LR
|
||||
|
||||
### A hexagon node
|
||||
|
||||
Code:
|
||||
|
||||
```mmd
|
||||
flowchart LR
|
||||
id1{{This is the text in the box}}
|
||||
```
|
||||
|
||||
Render:
|
||||
|
||||
```mermaid
|
||||
```mermaid-example
|
||||
flowchart LR
|
||||
id1{{This is the text in the box}}
|
||||
```
|
||||
@@ -238,6 +261,15 @@ flowchart LR
|
||||
A == text ==> B
|
||||
```
|
||||
|
||||
### An invisible link
|
||||
|
||||
This can be a useful tool in some instances where you want to alter the default positioning of a node.
|
||||
|
||||
```mermaid-example
|
||||
flowchart LR
|
||||
A ~~~ B
|
||||
```
|
||||
|
||||
### Chaining of links
|
||||
|
||||
It is possible declare many links in the same line as per below:
|
||||
@@ -266,7 +298,7 @@ word of warning, one could go overboard with this making the flowchart harder to
|
||||
markdown form. The Swedish word `lagom` comes to mind. It means, not too much and not too little.
|
||||
This goes for expressive syntaxes as well.
|
||||
|
||||
```mmd
|
||||
```mermaid
|
||||
flowchart TB
|
||||
A --> C
|
||||
A --> D
|
||||
@@ -397,7 +429,7 @@ flowchart TB
|
||||
end
|
||||
```
|
||||
|
||||
## flowcharts
|
||||
### flowcharts
|
||||
|
||||
With the graphtype flowchart it is also possible to set edges to and from subgraphs as in the flowchart below.
|
||||
|
||||
@@ -418,7 +450,7 @@ flowchart TB
|
||||
two --> c2
|
||||
```
|
||||
|
||||
## Direction in subgraphs
|
||||
### Direction in subgraphs
|
||||
|
||||
With the graphtype flowcharts you can use the direction statement to set the direction which the subgraph will render like in this example.
|
||||
|
||||
@@ -439,9 +471,38 @@ flowchart LR
|
||||
B1 --> B2
|
||||
```
|
||||
|
||||
## Markdown Strings
|
||||
|
||||
The "Markdown Strings" feature enhances flowcharts and mind maps by offering a more versatile string type, which supports text formatting options such as bold and italics, and automatically wraps text within labels.
|
||||
|
||||
```mermaid-example
|
||||
%%{init: {"flowchart": {"htmlLabels": false}} }%%
|
||||
flowchart LR
|
||||
subgraph "One"
|
||||
a("`The **cat**
|
||||
in the hat`") -- "edge label" --> b{{"`The **dog** in the hog`"}}
|
||||
end
|
||||
subgraph "`**Two**`"
|
||||
c("`The **cat**
|
||||
in the hat`") -- "`Bold **edge label**`" --> d("The dog in the hog")
|
||||
end
|
||||
```
|
||||
|
||||
Formatting:
|
||||
|
||||
- For bold text, use double asterisks (`**`) before and after the text.
|
||||
- For italics, use single asterisks (`*`) before and after the text.
|
||||
- With traditional strings, you needed to add `<br>` tags for text to wrap in nodes. However, markdown strings automatically wrap text when it becomes too long and allows you to start a new line by simply using a newline character instead of a `<br>` tag.
|
||||
|
||||
This feature is applicable to node labels, edge labels, and subgraph labels.
|
||||
|
||||
## Interaction
|
||||
|
||||
It is possible to bind a click event to a node, the click can lead to either a javascript callback or to a link which will be opened in a new browser tab. **Note**: This functionality is disabled when using `securityLevel='strict'` and enabled when using `securityLevel='loose'`.
|
||||
It is possible to bind a click event to a node, the click can lead to either a javascript callback or to a link which will be opened in a new browser tab.
|
||||
|
||||
```note
|
||||
This functionality is disabled when using `securityLevel='strict'` and enabled when using `securityLevel='loose'`.
|
||||
```
|
||||
|
||||
```
|
||||
click nodeId callback
|
||||
@@ -525,7 +586,7 @@ Beginner's tip—a full example using interactive links in a html context:
|
||||
|
||||
Comments can be entered within a flow diagram, which will be ignored by the parser. Comments need to be on their own line, and must be prefaced with `%%` (double percent signs). Any text after the start of the comment to the next newline will be treated as a comment, including any flow syntax
|
||||
|
||||
```mmd
|
||||
```mermaid
|
||||
flowchart LR
|
||||
%% this is a comment A -- text --> B{node}
|
||||
A -- text --> B -- text2 --> C
|
||||
@@ -553,8 +614,8 @@ linkStyle 1,2,7 color:blue;
|
||||
### Styling line curves
|
||||
|
||||
It is possible to style the type of curve used for lines between items, if the default method does not meet your needs.
|
||||
Available curve styles include `basis`, `bump`, `linear`, `monotoneX`, `monotoneY`, `natural`, `step`, `stepAfter`,
|
||||
and `stepBefore`.
|
||||
Available curve styles include `basis`, `bumpX`, `bumpY`, `cardinal`, `catmullRom`, `linear`, `monotoneX`, `monotoneY`,
|
||||
`natural`, `step`, `stepAfter`, and `stepBefore`.
|
||||
|
||||
In this example, a left-to-right graph uses the `stepBefore` curve style:
|
||||
|
||||
@@ -663,7 +724,7 @@ flowchart TD
|
||||
B-->E(A fa:fa-camera-retro perhaps?)
|
||||
```
|
||||
|
||||
?> Mermaid is now only compatible with Font Awesome versions 4 and 5. Check that you are using the correct version of Font Awesome.
|
||||
Mermaid is compatible with Font Awesome up to verion 5, Free icons only. Check that the icons you use are from the [supported set of icons](https://fontawesome.com/v5/search?o=r&m=free).
|
||||
|
||||
## Graph declarations with spaces between vertices and link and without semicolon
|
||||
|
||||
@@ -681,7 +742,26 @@ flowchart LR
|
||||
C -->|Two| E[Result two]
|
||||
```
|
||||
|
||||
## Configuration...
|
||||
## Configuration
|
||||
|
||||
### Renderer
|
||||
|
||||
The layout of the diagram is done with the renderer. The default renderer is dagre.
|
||||
|
||||
Starting with Mermaid version 9.4, you can use an alternate renderer named elk. The elk renderer is better for larger and/or more complex diagrams.
|
||||
|
||||
The _elk_ renderer is an experimenal feature.
|
||||
You can change the renderer to elk by adding this directive:
|
||||
|
||||
```
|
||||
%%{init: {"flowchart": {"defaultRenderer": "elk"}} }%%
|
||||
```
|
||||
|
||||
```note
|
||||
Note that the site needs to use mermaid version 9.4+ for this to work and have this featured enabled in the lazy-loading configuration.
|
||||
```
|
||||
|
||||
### Width
|
||||
|
||||
It is possible to adjust the width of the rendered flowchart.
|
||||
|
||||
|
||||
Reference in New Issue
Block a user