[![npm version](https://img.shields.io/npm/v/fa-diagrams.svg)](https://www.npmjs.com/package/fa-diagrams) [![Build Status](https://img.shields.io/travis/Klemek/fa-diagrams.svg?branch=master)](https://travis-ci.org/Klemek/fa-diagrams) [![Coverage Status](https://img.shields.io/coveralls/github/Klemek/fa-diagrams.svg?branch=master)](https://coveralls.io/github/Klemek/fa-diagrams?branch=master) # fa-diagrams **SVG diagrams built from Font-Awesome icons** **[Demo](https://klemek.github.io/fa-diagrams)** ## RoadMap to v1 * [x] Font-Awesome paths scrapping in build * [x] Node placing with links * [x] SVG output * [x] Node's icon rendering * [x] Simple links rendering * [x] Dashed links rendering * [x] Colors * [x] Sub-texts * [x] Font styles * [x] Sub-icons * [x] Unit testing * [ ] Examples ## Summary * [Usage](#usage) * [Node module](#node-module) * [Html script](#html-script) * [Install](#install) * [CDN](#cdn) * [Static scripts](#static-scripts) * [NPM](#npm) * [Build from sources](#build-from-sources) * [API](#api) * [`options`](#options) * [`nodes`](#nodes) * [`links`](#links) * [Sub-elements](#sub-elements) * [More info](#more-info) * [Icon names](#icon-names) * [Link types](#link-types) * [Thrown errors](#thrown-errors) * [Change icons](#change-icons) * [Examples](#examples) ## Usage *[back to top](#top)* ### Node module ```javascript const faDiagrams = require('fa-diagrams'); // data: sample const data = { "nodes": [ { "name": "node1", "icon": "laptop-code", "color": "#4E342E", "bottom": "my app" }, { "name": "node2", "icon": "globe", "color": "#455A64", "bottom": "world" } ], "links": [ { "from": "node1", "to": "node2", "color": "#333333", "top": { "icon": "envelope" }, "bottom": "\"hello\"" } ] } const svg = faDiagrams.compute(data); // string containing xml data //export as SVG with fs const fs = require('fs'); fs.writeFileSync('diagram.svg', svg, {encoding:'utf-8'}); //export as PNG with svg2img (npm i svg2img) const svg2img = require('svg2img'); svg2img(svg, function(error, buffer) { fs.writeFileSync('diagram.png', buffer); }); ``` Will produce the following diagram: ![sample](preview/sample.svg) ### Html script ```html ... ... ... ... ``` ## Install *[back to top](#top)* ### Static scripts Get the scripts from this repository `dist` folder ```html ``` ### CDN (soon) ```html ``` or ```html ``` or ```html ``` ### NPM (soon) ``` npm install fa-diagrams ``` ### Build from sources You will need subversion installed (used for precise folder fetching in GitHub) ``` git clone https://github.com/klemek/fa-diagrams.git cd fa-diagrams npm install node build.sh ``` ## API *[back to top](#top)* **You must pass as argument an object containing 3 keys:** * [`options`](#options) * [`nodes`](#nodes) * [`links`](#links) ### `options` | Key (`.subkey`) | Default value | Info | Redefined | | --- | --- | --- | --- | | `placing.max-link-length` | 3 | maximum stretching of links between nodes | no | | `placing.diagonals` | `true` | allow diagonal links to be made | no | | `rendering.beautify` | `false` | output a readable SVG file | no | | `rendering.scale` | 256 | (in pixels) final icons size | no | | `rendering.color` | `black` | color of all elements | no | | `rendering.h-spacing` | 1.3 | how width is stretched comparing to height | no | | `rendering.icons.scale` | 1 | default scaling of icons | in node | | `rendering.icons.color` | `''` | color of all icons | in node | | `rendering.sub-icons.scale` | 0.4 | default scaling of sub-icons | in sub-icon | | `rendering.sub-icons.color` | `''` | color of all sub-icons | in sub-icon | | `rendering.sub-icons.margin` | 0.3 | margin between sub-icons and elements | in sub-icon | | `rendering.links.scale` | 1 | default scaling of links | in link | | `rendering.links.color` | `''` | color of all links (might be redefined in link definition) | in link | | `rendering.links.size` | 0 | forced size/length of the links (0 means it will be computed from the distance between the nodes) | in link | | `rendering.texts.font` | `'Arial'` | font family of the texts (might be redefined in sub-elements definition) | in text | | `rendering.texts.font-size` | 15 | font size of the texts | in sub-text | | `rendering.texts.font-style` | `'normal'` | font style of the texts (see [Font styles](#font-styles)) | in sub-text | | `rendering.texts.color` | `''` | color of all texts | in sub-text | | `rendering.texts.margin` | 0.2 | margin between texts and elements | in sub-text | | `rendering.texts.line-height` | 1.2 | height of each line in font size | in sub-text | ### `nodes` Array of object as following: | Key | Type | Required | Info | | --- | --- | --- | --- | | **`name`** | string | **yes** | used in links to reference nodes | | **`icon`** | string/object | **yes** | name of the Font-Awesome icon of the node (see [Icon names](#icon-names)) | | `top`, `bottom`, `left`, `right` | string or object | no | see [Sub-elements](#sub-elements) | | `color` | string | no | redefined the color | | `scale` | number | no | redefine this node icon scale | | `x`, `y` | number | no | force the position of this node | ### `links` Array of object as following: | Key | Type | Required | Info | | --- | --- | --- | --- | | **`from`** | string | **yes** | source node name | | **`to`** | string | **yes** | destination node name | | `type` | string | no | link's appearance (see [Link types](#link-types)) | | `top`, `bottom` **or** `left`, `right` | string or object | no | left and right are relative of the link's direction, top and bottom relative of the link's angle, see [Sub-elements](#sub-elements) | | `color` | string | no | redefine the color | | `scale` | number | no | redefine this link scale | | `size` | number | no | forced size/length of the link | ### Sub-elements Elements meant to be drawn along-side a node/link. There are two types: text and icons ### Texts You can **just enter a string** to be considered a text but you can define a text with more options as following: | Key | Type | Required | Info | | --- | --- | --- | --- | | **`text`** | string | **yes** | value of your text | | `color` | string | no | redefine the color | | `font` | string | no | redefine the font family | | `font-size` | number | no | redefine the font size | | `font-style` | string | no | redefine the font style (see [Font styles](#font-styles)) | | `margin` | number | no | redefine the margin with the parent element | | `line-height` | number | no | height of each line in font size | ### Icons You can define a relative icon with the following: | Key | Type | Required | Info | | --- | --- | --- | --- | | **`icon`** | string/object | **yes** | name of the Font-Awesome icon of the sub-element (see [Icon names](#icon-names)) | | `color` | string | no | redefine the color | | `scale` | number | no | redefine this sub-icon scale | | `margin` | number | no | redefine the margin with the parent element | ## More info *[back to top](#top)* ### Icon names **Icons are fetched from [Font-Awesome free icons](https://fontawesome.com/icons?d=gallery&m=free).** When you reference an icon, for example `circle`, it's searched in the `solid` folder then `regular` then `brands`. If, in this case you want the hollow circle from the regular style, just enter `regular circle` or `circle regular` instead. It's very flexible as you can copy-paste from an HTML page `far fa-circle` and it will also works. You can also specify a custom icon by entering the following object instead of a string: | Key | Type | Required | Info | | --- | --- | --- | --- | | **`path`** | string | **yes** | the SVG path of your icon | | `width` | string | no | the custom width of the path (if blank, height is taken, then the height of all icons: 512) | | `height` | string | no | the custom height of the path (if blank, width is taken) | ### Link types Here are the accepted types and their preview : ![](preview/links.svg) You can use **`none`** to make an invisible link. ### Font styles First, you should use [web-safe fonts](https://websitesetup.org/web-safe-fonts-html-css/) to be sure your SVG will be rendered correctly Here are the available styles : * `normal` * **`bold`** * *`italic`* * `oblique` * __`underlined`__ * `overlined` * ~~`striked`~~ The style can also be a compound like `bold italic`. ### Thrown errors Errors can be thrown in these 2 cases : * Nodes could not be placed based on the constraints: * `Failed to place nodes` * A node or a link have an invalid property * `Node 'name' is invalid at key ...` ### Change icons If you want to change the icons you can edit/build your own `resources.json` as following: ```javascript { "name": "squares", "height": 60, //height of all icons "index": [ // which categories are there and in which order it should be searched "solid", "hollow" ], "icons": { "solid": { "square":{ "path":"M10 10v-40h40v40z", "width":60 } }, "hollow": { "square":{ "path":"M10 10v-40h40v40h-40m10 10v-20h20v20h-20z", "width":60 } } } } ``` ## Examples *[back to top](#top)* ### Example 1 ![](preview/example1.svg)

JSON data (click)

```json { "nodes": [ { "name": "node1", "icon": "laptop-code", "color": "#4E342E", "bottom": "my app" }, { "name": "node2", "icon": "globe", "color": "#455A64", "bottom": "world" } ], "links": [ { "from": "node1", "to": "node2", "color": "#333333", "top": { "icon": "envelope" }, "bottom": "\"hello\"" } ] } ```

YAML data (click)

```yaml nodes: - name: node1 icon: laptop-code color: '#4E342E' bottom: my app - name: node2 icon: globe color: '#455A64' bottom: world links: - from: node1 to: node2 color: '#333333' top: icon: envelope bottom: '"hello"' ```

(soon)