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https://github.com/marcisbee/nomnoml-es


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README 

        
nomnoml

[![npm version](https://badge.fury.io/js/nomnoml.svg)](https://badge.fury.io/js/nomnoml)

[![Known Vulnerabilities](https://snyk.io/test/npm/nomnoml/badge.svg)](https://snyk.io/test/npm/nomnoml)

[![web site](https://img.shields.io/badge/web-nomnoml.com-brightgreen)](https://www.nomnoml.com)

=======



Hello, this is [nomnoml](http://www.nomnoml.com), a tool for drawing UML diagrams based on a simple syntax. It tries to keep its syntax visually as close as possible to the generated UML diagram without resorting to ASCII drawings.



Created by [Daniel Kallin](https://github.com/skanaar) with help from a group of [contributors](https://github.com/skanaar/nomnoml/graphs/contributors).



## Library



The [nomnoml](https://www.nomnoml.com) javascript library can render diagrams on your web page. The only dependency is [graphre](https://github.com/skanaar/graphre). Install nomnoml using either _npm_ or good old script inclusion.



## SVG output in NodeJS



```

npm install nomnoml

```



```js

var nomnoml = require('nomnoml')

var src = '[nomnoml] is -> [awesome]'

console.log(nomnoml.renderSvg(src))

```



In the SVG output the node name is attached to SVG shapes and `` containers with `data-name` attribute. You can use this to implement interactive diagrams.



```js

document.querySelector('svg').onclick = function (e) {

  console.log(e.target.closest('g[data-name]')?.attributes['data-name'])

}

```



## HTML Canvas rendering target



```html



  var canvas = document.getElementById('target-canvas')

  var source = '[nomnoml] is -> [awesome]'

  nomnoml.draw(canvas, source)



```



## Command Line Interface



`npx nomnoml` exposes the SVG renderer with a command-line interface. This mode also supports the `#import: ` directive for dividing complex diagrams into multiple files.



```

npx nomnoml input-file.noml

```



## Web application



The [nomnoml](http://www.nomnoml.com) web application is a simple editor with a live preview. It is purely client-side and uses your browser's _localStorage_, so your diagram should be here the next time you visit (but no guarantees).



### Example



This is how the Decorator pattern can look in nomnoml syntax:



    [Decorator pattern|

      [Component||+ operation()]

      [Client] depends --> [Component]

      [Decorator|- next: Component]

      [Decorator] decorates -- [ConcreteComponent]

      [Component] <:- [Decorator]

      [Component] <:- [ConcreteComponent]

    ]



### Association types



    -    association

    ->   association

    <->  association

    -->  dependency

    <--> dependency

    -:>  generalization

    <:-  generalization

    --:> implementation

    <:-- implementation

    +-   composition

    +->  composition

    o-   aggregation

    o->  aggregation

    -o)  ball and socket

    o<-) ball and socket

    ->o  ball and socket

    --   note

    -/-  hidden

    _>   weightless edge

    __   weightless dashed edge



### Classifier types



    [name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ lollipop]

    [ name]

    [ socket]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name]

    [ name| a | 5 || b | 7]



### Directives



    #import: my-common-styles.nomnoml

    #arrowSize: 1

    #bendSize: 0.3

    #direction: down | right

    #gutter: 5

    #edgeMargin: 0

    #gravity: 1

    #edges: hard | rounded

    #background: transparent

    #fill: #eee8d5; #fdf6e3

    #fillArrows: false

    #font: Calibri

    #fontSize: 12

    #leading: 1.25

    #lineWidth: 3

    #padding: 8

    #spacing: 40

    #stroke: #33322E

    #title: filename

    #zoom: 1

    #acyclicer: greedy

    #ranker: network-simplex | tight-tree | longest-path



### Custom classifier styles



A directive that starts with "." define a classifier style. The style is written as a space separated list of modifiers and key/value pairs.



    #.box: fill=#8f8 dashed

    #.blob: visual=ellipse title=bold

    [ GreenBox]

    [ HideousBlob]



Modifiers



    dashed

    empty



Key/value pairs



    fill=(any css color)



    stroke=(any css color)



    align=center

    align=left



    direction=right

    direction=down



    visual=actor

    visual=class

    visual=database

    visual=ellipse

    visual=end

    visual=frame

    visual=hidden

    visual=input

    visual=none

    visual=note

    visual=package

    visual=receiver

    visual=rhomb

    visual=roundrect

    visual=sender

    visual=start

    visual=table

    visual=transceiver



Style title and text body with a comma separated list of text modifiers



    title=left,italic,bold

    body=center,italic,bold



Text modifiers



    bold

    center

    italic

    left

    underline



## Contributing



If you want to contribute to the project, more info is available in [CONTRIBUTING.md](CONTRIBUTING.md).