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class-sheet

npm version Build Status XO: Linted

Under construction.

A package that generates image from class-sheet data.

Quick start

  • $ sudo apt-get install libcairo2-dev libjpeg8-dev libpango1.0-dev libgif-dev build-essential g++
  • $ npm i class-sheet -S

Example

As a server with express.js:

var classSheet = require('class-sheet');

router.get('/:course_data', function (req, res, next) {
    // stream and pipe to res, send image/png result as the response
    classSheet.imageStream(req.params.course_data, res);
});

As an independent tool:

var classSheet = require('class-sheet');

// output the base64 result
console.log(classSheet.image(course_data));

Data format

A JSON string, i.e.:

course_data = '{\
  "courses":\
    [\
      {"name":"人工智能","day":0,"section":"2-4"},\
      {"name":"数据通信与计算机网络","day":2,"section":"11-12"},\
      {"name":"数据通信与计算机网络","day":0,"section":"6-8"},\
      {"name":"操作系统","day":1,"section":"8-9"},\
      {"name":"游戏开发基础","day":2,"section":"2-4"},\
      {"name":"概率论与数理统计","day":2,"section":"6-8"},\
      {"name":"第一哲学沉思集","day":3,"section":"11-12"},\
      {"name":"中文信息处理","day":3,"section":"3-4"},\
      {"name":"计算机图形学","day":4,"section":"2-4"},\
      {"name":"操作系统","day":3,"section":"6-8"},\
      {"name":"概率论与数理统计","day":4,"section":"6-7"}\
    ]\
}'

Then calling classSheet.image with course_data will get the image below (as base64 data):

1.png

Notice you can get the JSON string by calling JSON.stringify(course_object_data).

Another example:

2.png

Usage

Install

From NPM:

  • $ npm install class-sheet

From git repo:

Test

Code style:

$ npm test (current only xo.js)

Options

  • courses
    • courses data
    • default: []
    • example: [{"name":"Modern Art","day":2,"section":"1-3"}, {"name":"Computer Graphics","day":"4","section":"9-10","text-color":"red"}]
  • lines
    • horizontal lines
    • default: []
    • example: [5, 10] will drop lines under section 5 and section 10
  • custom-line-color
    • default: 'red'
  • day-content
    • default: ['一', '二', '三', '四', '五']
  • width
    • default: 320
  • height
    • default: 640
  • line-color
    • default: '#ccc'
  • text-color
    • default: '#000'
  • font-size
    • default: 12
  • info-text-color
    • default: '#555'
  • info-font-size
    • default: 10
  • background-color
    • default: '#f5f5f5'
  • header-height
    • default: 40
  • header-line-color
    • default: '#000'
  • header-text-color
    • default: '#000'
  • header-font-size
    • default: 15
  • sidebar-width
    • default: 30
  • sidebar-line-color
    • default: '#000'
  • sidebar-text-color
    • default: '#000'
  • sidebar-font-size
    • default: 12
  • days
    • default: 5
  • sections
    • default: 14
  • course-background-color
    • default: '#fff'

Acknowledgements

  • node-canvas

License

MIT.

<3

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A package that generates image from class-sheet data.

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