├── image.png
├── .gitignore
├── .editorconfig
├── rollup.config.js
├── license
├── src
    ├── index.js
    ├── layout.js
    ├── milestones.js
    ├── tasks.js
    └── style.js
├── package.json
├── demo
    └── index.html
└── readme.md


/image.png:
--------------------------------------------------------------------------------
https://raw.githubusercontent.com/nextbitlabs/gantt-chart/HEAD/image.png


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/.gitignore:
--------------------------------------------------------------------------------
1 | .DS_Store
2 | node_modules
3 | dist
4 | npm-debug.log*
5 | .vscode
6 | 


--------------------------------------------------------------------------------
/.editorconfig:
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 1 | root = true
 2 | 
 3 | [*]
 4 | charset = utf-8
 5 | indent_style = tab
 6 | indent_size = 2
 7 | end_of_line = lf
 8 | insert_final_newline = true
 9 | trim_trailing_whitespace = true
10 | 


--------------------------------------------------------------------------------
/rollup.config.js:
--------------------------------------------------------------------------------
 1 | import resolve from '@rollup/plugin-node-resolve';
 2 | import commonjs from 'rollup-plugin-commonjs';
 3 | import pkg from './package.json';
 4 | 
 5 | export default [
 6 | 	{
 7 | 		input: 'src/index.js',
 8 | 		output: {
 9 | 			name: 'ganttChart',
10 | 			file: pkg.browser,
11 | 			format: 'umd'
12 | 		},
13 | 		plugins: [
14 | 			resolve(),
15 | 			commonjs()
16 | 		]
17 | 	},
18 | 	{
19 | 		input: 'src/index.js',
20 | 		external: ['ms'],
21 | 		output: [
22 | 			{ file: pkg.main, format: 'cjs' },
23 | 			{ file: pkg.module, format: 'es' }
24 | 		]
25 | 	}
26 | ];
27 | 


--------------------------------------------------------------------------------
/license:
--------------------------------------------------------------------------------
1 | Copyright 2019 Riccardo Scalco
2 | 
3 | Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
4 | 
5 | The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
6 | 
7 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
8 | 


--------------------------------------------------------------------------------
/src/index.js:
--------------------------------------------------------------------------------
 1 | import {html, define, property} from 'hybrids';
 2 | import style from './style';
 3 | import {
 4 | 	margin,
 5 | 	trimWidth,
 6 | 	trimHeight,
 7 | 	globalTransform,
 8 | 	taskHeight,
 9 | 	taskVerticalPosition,
10 | 	latestEnd,
11 | 	unitWidth,
12 | 	taskHorizontalPosition,
13 | 	taskWidth
14 | } from './layout';
15 | import {tasks} from './tasks';
16 | import {milestones} from './milestones';
17 | 
18 | function render({
19 | 	width,
20 | 	height,
21 | 	tasks,
22 | 	milestones,
23 | 	globalTransform
24 | }) {
25 | 	return html`
26 | 		${style}
27 | 		<svg width=${width} height=${height}>
28 | 			<g transform="${globalTransform}">
29 | 				<g class="tasks">${tasks}</g>
30 | 				<g class="milestones">${milestones}</g>
31 | 			</g>
32 | 		</svg>
33 | 	`;
34 | }
35 | 
36 | export const GanttChart = {
37 | 	data: property({
38 | 		tasks: []
39 | 	}),
40 | 	width: 800,
41 | 	height: 600,
42 | 	marginRight: 20,
43 | 	marginBottom: 20,
44 | 	marginLeft: 20,
45 | 	marginTop: 20,
46 | 	margin,
47 | 	trimWidth,
48 | 	trimHeight,
49 | 	globalTransform,
50 | 	taskHeight,
51 | 	taskVerticalPosition,
52 | 	latestEnd,
53 | 	unitWidth,
54 | 	taskHorizontalPosition,
55 | 	taskWidth,
56 | 	tasks,
57 | 	milestones,
58 | 	render
59 | };
60 | 
61 | define('gantt-chart', GanttChart);
62 | 


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "@nextbitlabs/gantt-chart",
 3 |   "version": "1.3.2",
 4 |   "description": "Web component of a gantt chart.",
 5 |   "main": "dist/gantt-chart.cjs.js",
 6 |   "module": "dist/gantt-chart.esm.js",
 7 |   "browser": "dist/gantt-chart.umd.js",
 8 |   "scripts": {
 9 |     "build": "rollup -c",
10 |     "dev": "rollup -c -w",
11 |     "pretest": "npm run build",
12 |     "test": "xo src/*",
13 |     "lint-fix": "xo --fix src/*",
14 |     "release": "np"
15 |   },
16 |   "keywords": [
17 |     "gantt",
18 |     "plot",
19 |     "chart",
20 |     "webcomponent",
21 |     "component"
22 |   ],
23 |   "author": {
24 |     "name": "Riccardo Scalco",
25 |     "email": "riccardoscalco@gmail.com",
26 |     "url": "http://riccardoscalco.github.io/"
27 |   },
28 |   "license": "MIT",
29 |   "repository": "nextbitlabs/gantt-chart",
30 |   "homepage": "https://github.com/nextbitlabs/gantt-chart/",
31 |   "bugs": "https://github.com/nextbitlabs/gantt-chart/issues",
32 |   "devDependencies": {
33 |     "@rollup/plugin-node-resolve": "^7.1.1",
34 |     "hybrids": "^4.0.3",
35 |     "np": "^6.2.0",
36 |     "rollup": "^1.27.13",
37 |     "rollup-plugin-commonjs": "^10.1.0",
38 |     "xo": "^0.27.2"
39 |   },
40 |   "files": [
41 |     "dist"
42 |   ],
43 |   "publishConfig": {
44 |     "access": "public"
45 |   }
46 | }
47 | 


--------------------------------------------------------------------------------
/src/layout.js:
--------------------------------------------------------------------------------
 1 | export const margin = {
 2 | 	get: ({marginRight, marginBottom, marginLeft, marginTop}) => ({
 3 | 		top: marginTop,
 4 | 		right: marginRight,
 5 | 		bottom: marginBottom,
 6 | 		left: marginLeft
 7 | 	})
 8 | };
 9 | 
10 | export const trimWidth = {
11 | 	get: ({width, margin}) => width - margin.left - margin.right
12 | };
13 | 
14 | export const trimHeight = {
15 | 	get: ({height, margin}) => height - margin.top - margin.bottom
16 | };
17 | 
18 | export const globalTransform = {
19 | 	get: ({margin}) => `translate(${margin.left}, ${margin.top})`
20 | };
21 | 
22 | export const taskHeight = {
23 | 	get: ({trimHeight, data}) => trimHeight / Math.max(10, data.tasks.length)
24 | };
25 | 
26 | export const taskVerticalPosition = {
27 | 	get: ({taskHeight}) => index => taskHeight * index
28 | };
29 | 
30 | export const latestEnd = {
31 | 	get: ({data}) => data.tasks.length > 0 ?
32 | 		data.tasks
33 | 			.map(el => el.start + el.duration)
34 | 			.reduce((p, c) => c > p ? c : p, 0) :
35 | 		1
36 | };
37 | 
38 | export const unitWidth = {
39 | 	get: ({trimWidth, latestEnd}) => trimWidth / latestEnd
40 | };
41 | 
42 | export const taskHorizontalPosition = {
43 | 	get: ({unitWidth}) => start => unitWidth * start
44 | };
45 | 
46 | export const taskWidth = {
47 | 	get: ({unitWidth}) => duration => unitWidth * duration
48 | };
49 | 


--------------------------------------------------------------------------------
/src/milestones.js:
--------------------------------------------------------------------------------
 1 | import {svg} from 'hybrids';
 2 | 
 3 | const taskVerticalPadding = 2;
 4 | 
 5 | const shift = (tasks, task, index) => {
 6 | 	const isInTaskInterval = (c, task) =>
 7 | 		(c.start >= task.start) && (c.start <= (task.start + task.duration));
 8 | 	return tasks
 9 | 		.reduce(
10 | 			(p, c, i) => (i >= index) && isInTaskInterval(c, task) ? p + 1 : p,
11 | 			0
12 | 		);
13 | };
14 | 
15 | export const milestones = {
16 | 	get: ({
17 | 		data,
18 | 		taskVerticalPosition,
19 | 		taskHorizontalPosition,
20 | 		taskWidth,
21 | 		taskHeight
22 | 	}) => {
23 | 		const sortedTasks = data.tasks
24 | 			.map(el => el)
25 | 			.sort((a, b) =>
26 | 				(a.start < b.start) ||
27 | 				((a.start === b.start) && (a.duration < b.duration)) ?
28 | 					-1 :
29 | 					1
30 | 			);
31 | 		return data.milestones.map(milestone => {
32 | 			const index = sortedTasks.findIndex(task => task.id === milestone.taskId);
33 | 			const task = sortedTasks[index];
34 | 			return svg`
35 | 				<g
36 | 					transform="translate(
37 | 						${taskHorizontalPosition(task.start) + taskWidth(task.duration)},
38 | 						${taskVerticalPosition(index) + ((shift(sortedTasks, task, index) + (milestone.additionalVerticalShift || 0)) * taskHeight) + taskVerticalPadding}
39 | 					)"
40 | 				>
41 | 					<line
42 | 						y2="${70}"
43 | 					></line>
44 | 					<text
45 | 						dx="-5"
46 | 						dy="70"
47 | 					>${milestone.title}</text>
48 | 					<text
49 | 						class=date
50 | 						dx="-5"
51 | 						dy="90"
52 | 					>${milestone.date || ''}</text>
53 | 				</g>
54 | 			`;
55 | 		});
56 | 	}
57 | };
58 | 


--------------------------------------------------------------------------------
/src/tasks.js:
--------------------------------------------------------------------------------
 1 | import {svg} from 'hybrids';
 2 | 
 3 | const taskVerticalPadding = 2;
 4 | 
 5 | const ticks = (numberOfTicks, taskWidth, taskHeight) =>
 6 | 	[...new Array(numberOfTicks).keys()].map(index => svg`
 7 | 		<line
 8 | 			x1=${taskWidth / (numberOfTicks + 1) * (index + 1)}
 9 | 			x2=${taskWidth / (numberOfTicks + 1) * (index + 1)}
10 | 			y1=${taskVerticalPadding}
11 | 			y2=${taskHeight - taskVerticalPadding}
12 | 		></line>
13 | 	`);
14 | 
15 | export const tasks = {
16 | 	get: ({
17 | 		data,
18 | 		taskVerticalPosition,
19 | 		taskHorizontalPosition,
20 | 		taskWidth,
21 | 		taskHeight
22 | 	}) => {
23 | 		const sortedTasks = data.tasks
24 | 			.map(el => el)
25 | 			.sort((a, b) =>
26 | 				(a.start < b.start) ||
27 | 				((a.start === b.start) && (a.duration < b.duration)) ?
28 | 					-1 :
29 | 					1
30 | 			);
31 | 		return sortedTasks.map((task, index) => svg`
32 | 			<g
33 | 				transform="translate(
34 | 					${taskHorizontalPosition(task.start)},
35 | 					${taskVerticalPosition(index)}
36 | 				)"
37 | 			>
38 | 				<rect
39 | 					y="${taskVerticalPadding}"
40 | 					width="${taskWidth(task.duration)}"
41 | 					height="${taskHeight - (2 * taskVerticalPadding)}"
42 | 					rx="0"
43 | 					class="${task.class}"
44 | 				></rect>
45 | 				<rect
46 | 					y="${taskVerticalPadding + ((taskHeight - (2 * taskVerticalPadding)) * (0.5 - 0.1))}"
47 | 					width="${taskWidth(task.duration * (task.progress || 0.0))}"
48 | 					height="${(taskHeight - (2 * taskVerticalPadding)) * 0.2}"
49 | 					rx="0"
50 | 					class="progress"
51 | 				></rect>
52 | 				<g class="ticks">
53 | 					${ticks(task.duration - 1, taskWidth(task.duration), taskHeight)}
54 | 				</g>
55 | 				<text
56 | 					dx="${taskWidth(task.duration) + 5}"
57 | 					dy="${taskHeight / 2}"
58 | 				>${task.title}</text>
59 | 				<text
60 | 					class="week"
61 | 					dx="-5"
62 | 					dy="${taskHeight / 2}"
63 | 				>w${task.start}</text>
64 | 			</g>
65 | 		`);
66 | 	}
67 | };
68 | 


--------------------------------------------------------------------------------
/src/style.js:
--------------------------------------------------------------------------------
  1 | import {html} from 'hybrids';
  2 | 
  3 | export default html`
  4 | 	<style>
  5 | 
  6 | 		svg {
  7 | 			background: var(--background-color, white);
  8 | 		}
  9 | 
 10 | 		svg rect {
 11 | 			fill: #353839;
 12 | 		}
 13 | 
 14 | 		svg rect.c1 {
 15 | 			fill: var(--c1, purple);
 16 | 		}
 17 | 
 18 | 		svg rect.c2 {
 19 | 			fill: var(--c2, blue);
 20 | 		}
 21 | 
 22 | 		svg rect.c3 {
 23 | 			fill: var(--c3, gold);
 24 | 		}
 25 | 
 26 | 		svg rect.c4 {
 27 | 			fill: var(--c4, gold);
 28 | 		}
 29 | 
 30 | 		svg rect.c5 {
 31 | 			fill: var(--c5, gold);
 32 | 		}
 33 | 
 34 | 		svg rect.c6 {
 35 | 			fill: var(--c6, gold);
 36 | 		}
 37 | 
 38 | 		svg rect.c7 {
 39 | 			fill: var(--c7, gold);
 40 | 		}
 41 | 
 42 | 		svg rect.c8 {
 43 | 			fill: var(--c8, gold);
 44 | 		}
 45 | 
 46 | 		svg rect.c9 {
 47 | 			fill: var(--c9, gold);
 48 | 		}
 49 | 
 50 | 		svg rect.c10 {
 51 | 			fill: var(--c10, gold);
 52 | 		}
 53 | 
 54 | 		svg rect.progress {
 55 | 			fill: #353839;
 56 | 		}
 57 | 
 58 | 		svg text {
 59 | 			font-family: var(--font-family, sans-serif);
 60 | 			font-size: var(--font-size, 12px);
 61 | 			font-weight: bold;
 62 | 			fill: #353839;
 63 | 		}
 64 | 
 65 | 		svg text.week {
 66 | 			font-weight: normal;
 67 | 			font-size: calc(var(--font-size, 12px) - 2px);
 68 | 			text-anchor: end;
 69 | 			fill-opacity: 0.7;
 70 | 		}
 71 | 
 72 | 		svg .tasks text {
 73 | 			dominant-baseline: middle;
 74 | 		}
 75 | 
 76 | 		svg .tasks .ticks line {
 77 | 			visibility: var(--visibility-ticks, visible);
 78 | 			stroke-width: 1px;
 79 | 			stroke: var(--background-color, white);
 80 | 			stroke-opacity: 1;
 81 | 		}
 82 | 
 83 | 		svg g.milestones line {
 84 | 			stroke: #353839;
 85 | 			stroke-width: 2;
 86 | 		}
 87 | 
 88 | 		svg g.milestones text {
 89 | 			font-size: calc(var(--font-size, 12px) + 4px);
 90 | 			text-anchor: end;
 91 | 		}
 92 | 
 93 | 		svg g.milestones text.date {
 94 | 			font-weight: normal;
 95 | 			font-size: var(--font-size, 12px);
 96 | 			fill-opacity: 0.7;
 97 | 		}
 98 | 
 99 | 	</style>
100 | `;
101 | 


--------------------------------------------------------------------------------
/demo/index.html:
--------------------------------------------------------------------------------
  1 | <!DOCTYPE html>
  2 | <html>
  3 | 	<head>
  4 | 		<meta charset="utf-8">
  5 | 		<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no, user-scalable=yes">
  6 | 		<script type="module">
  7 | 			import '../dist/gantt-chart.umd.js';
  8 | 		</script>
  9 | 	</head>
 10 | 	<style>
 11 | 		@import url('https://fonts.googleapis.com/css?family=Lato:400,700&display=swap');
 12 | 		/*
 13 | 			CSS custom properties penetrate the Shadow DOM.
 14 | 			They are useful to provide custom styling.
 15 | 		*/
 16 | 		gantt-chart {
 17 | 			--font-family: 'Lato', sans-serif;
 18 | 			--background-color: #f6f8fa;
 19 | 			--c1: lightblue;
 20 | 		}
 21 | 	</style>
 22 | 	<body>
 23 | 		<gantt-chart
 24 | 			width="1150"
 25 | 			height="700"
 26 | 			margin-top="40"
 27 | 			margin-left="40"
 28 | 			margin-right="210"
 29 | 			margin-bottom="160"
 30 | 		></gantt-chart>
 31 | 	</body>
 32 | 	<script>
 33 | 		const element = document.querySelector('gantt-chart');
 34 | 
 35 | 		const data = {
 36 | 			milestones: [
 37 | 				{
 38 | 					id: 1,
 39 | 					taskId: 6,
 40 | 					title: 'Milestone B',
 41 | 					date: 'April 2019'
 42 | 				},
 43 | 				{
 44 | 					id: 2,
 45 | 					taskId: 7,
 46 | 					title: 'Milestone A',
 47 | 					date: 'January 2019'
 48 | 				},
 49 | 				{
 50 | 					id: 3,
 51 | 					taskId: 11,
 52 | 					title: 'Milestone C',
 53 | 					date: 'September 2019'
 54 | 				},
 55 | 			],
 56 | 			tasks: [
 57 | 				{
 58 | 					id: 1,
 59 | 					title: 'task 1',
 60 | 					start: 0,
 61 | 					duration: 4,
 62 | 					class: 'c1',
 63 | 					progress: .65
 64 | 				},
 65 | 				{
 66 | 					id: 2,
 67 | 					title: 'task 2',
 68 | 					start: 4,
 69 | 					duration: 3,
 70 | 					class: 'c1',
 71 | 					progress: .45
 72 | 				},
 73 | 				{
 74 | 					id: 3,
 75 | 					title: 'task 3',
 76 | 					start: 5,
 77 | 					duration: 4,
 78 | 					class: 'c1',
 79 | 					progress: .15
 80 | 				},
 81 | 				{
 82 | 					id: 4,
 83 | 					title: 'task 4',
 84 | 					start: 7,
 85 | 					duration: 2,
 86 | 					class: 'c1'
 87 | 				},
 88 | 				{
 89 | 					id: 5,
 90 | 					title: 'task 5',
 91 | 					start: 8,
 92 | 					duration: 4,
 93 | 					class: 'c1',
 94 | 				},
 95 | 				{
 96 | 					id: 6,
 97 | 					title: 'task 6',
 98 | 					start: 10,
 99 | 					duration: 4,
100 | 					class: 'c1',
101 | 				},
102 | 				{
103 | 					id: 7,
104 | 					title: 'task 7',
105 | 					start: 0,
106 | 					duration: 4,
107 | 					class: 'c3',
108 | 					progress: 1.
109 | 				},
110 | 				{
111 | 					id: 8,
112 | 					title: 'task 8',
113 | 					start: 11,
114 | 					duration: 5,
115 | 					class: 'c3',
116 | 				},
117 | 				{
118 | 					id: 9,
119 | 					title: 'task 9',
120 | 					start: 14,
121 | 					duration: 2,
122 | 					class: 'c3'
123 | 				},
124 | 				{
125 | 					id: 10,
126 | 					title: 'task 10',
127 | 					start: 16,
128 | 					duration: 5,
129 | 					class: 'c1'
130 | 				},
131 | 				{
132 | 					id: 11,
133 | 					title: 'task 11',
134 | 					start: 21,
135 | 					duration: 6,
136 | 					class: 'c3'
137 | 				},
138 | 				{
139 | 					id: 12,
140 | 					title: 'task 12',
141 | 					start: 25,
142 | 					duration: 2,
143 | 					class: 'c3'
144 | 				}
145 | 			]
146 | 		};
147 | 
148 | 		element.data = data;
149 | 	</script>
150 | </html>
151 | 


--------------------------------------------------------------------------------
/readme.md:
--------------------------------------------------------------------------------
  1 | # &lt;gantt-chart&gt;
  2 | 
  3 | ![Latest Release](https://badgen.net/github/release/nextbitlabs/gantt-chart) [![Published on webcomponents.org](https://img.shields.io/badge/webcomponents.org-published-blue.svg)](https://www.webcomponents.org/element/gantt-chart)
  4 | 
  5 | Web component implementation of a Gantt chart.
  6 | 
  7 | <div align="center">
  8 | 
  9 | 
 10 | <img width="900px" src="image.png">
 11 | </div>
 12 | 
 13 | ## Data model
 14 | 
 15 | ```js
 16 | {
 17 |   milestones: [
 18 |     {
 19 |       id: 1,
 20 |       taskId: 6, // Graphical hint, it may be latest task in the milestone.
 21 |       title: 'Milestone A',
 22 |       date: 'July 2019', // Optional.
 23 |       additionalVerticalShift: 1 // Optional.
 24 |     },
 25 |     ...
 26 |   ],
 27 |   tasks: [
 28 |     {
 29 |       id: 1,
 30 |       title: 'task 1',
 31 |       start: 0, // Week number.
 32 |       duration: 4, // Duration in weeks.
 33 |       class: 'c1',
 34 |       progress: // Optional, defaults to 0.
 35 |     },
 36 |     ...
 37 |   ]
 38 | }
 39 | ```
 40 | 
 41 | ## Exposed attributes
 42 | 
 43 | * `width`: chart width in pixels
 44 | * `height`: chart height in pixels
 45 | 
 46 | Margins attributes help to ensure task and milestone titles are visible.
 47 | 
 48 | * `margin-top`: space in pixel between the top border and the first task.
 49 | * `margin-bottom`: space in pixel between the bottom border and the last task.
 50 | * `margin-left`: space in pixel between the left border and the first task.
 51 | * `margin-right`: space in pixel between the right border and the last task.
 52 | 
 53 | See section [Usage](#usage) for an example.
 54 | 
 55 | ## Exposed CSS Custom Properties
 56 | 
 57 | 
 58 | * `--font-family` defaults to `sans-serif`
 59 | * `--font-size` defaults to `12px`
 60 | * `--background-color` defaults to `white`
 61 | * `--visibility-ticks` defaults to `visible`, set to `hidden` to hide the week ticks
 62 | 
 63 | Up to 10 classes can be passed:
 64 | 
 65 | * `--c1`, the task color defaults to `purple`
 66 | * `--c2`, the task color defaults to `blue`
 67 | * `--c3`, the task color defaults to `gold`
 68 | 
 69 | See section [Usage](#usage) for an example.
 70 | 
 71 | ## Usage
 72 | 
 73 | In an html file
 74 | 
 75 | ```html
 76 | <!DOCTYPE html>
 77 | <html>
 78 |   <head>
 79 |     <meta charset="utf-8">
 80 |     <script type="module">
 81 |       import 'https://unpkg.com/@nextbitlabs/gantt-chart@1.0.2/dist/gantt-chart.umd.js';
 82 |     </script>
 83 |   </head>
 84 |   <style>
 85 |     @import url('https://fonts.googleapis.com/css?family=Lato:400,700&display=swap');
 86 |     /*
 87 |       CSS custom properties penetrate the Shadow DOM,
 88 |       they are useful to provide custom styling.
 89 |       The gantt-chart webcomponent exposes font-size and font-family custom properties.
 90 |     */
 91 |     gantt-chart {
 92 |       --font-family: 'Lato', sans-serif;
 93 |       --c1: lightblue;
 94 |     }
 95 |   </style>
 96 |   <body>
 97 |     <!-- Set component attributes -->
 98 |     <gantt-chart
 99 |       width="1150"
100 |       height="700"
101 |       margin-top="40"
102 |       margin-left="40"
103 |       margin-right="40"
104 |       margin-bottom="40"
105 |     ></gantt-chart>
106 |   </body>
107 |   <script>
108 |     const element = document.querySelector('gantt-chart');
109 | 
110 |     // Set gantt data: tasks and milestones.
111 |     element.data = {
112 |       milestones: [
113 |         {
114 |           id: 1,
115 |           taskId: 1,
116 |           title: 'Milestone A'
117 |         },
118 |       ],
119 |       tasks: [
120 |         {
121 |           id: 1,
122 |           title: 'task 1',
123 |           start: 0,
124 |           duration: 4,
125 |           class: 'c1',
126 |           progress: 0.65
127 |         },
128 |       ]
129 |     };
130 |   </script>
131 | </html>
132 | ```
133 | 
134 | With npm:
135 | 
136 | ```sh
137 | npm i @nextbitlabs/gantt-chart
138 | ```
139 | 
140 | See [demo](https://stackblitz.com/edit/gantt-chart-example).
141 | 
142 | ## Development
143 | 
144 | Install dependencies with
145 | 
146 | ```sh
147 | npm install
148 | ```
149 | 
150 | Update build on changes with
151 | 
152 | ```sh
153 | npm run dev
154 | ```
155 | 
156 | and see updates on `./demo/index.html` running a local server from `./`.
157 | 
158 | ## Release
159 | 
160 | ```sh
161 | npm run release
162 | ```
163 | 
164 | ## License
165 | 
166 | This project is licensed under the MIT License. See the [license](license) file for details.
167 | 


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