class-sheet

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):

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

Another example:

Usage

Install

From NPM:

• $ npm install class-sheet

From git repo:

• install node-canvas: https://github.com/Automattic/node-canvas/wiki
• $ git clone [email protected]:quietshu/class-sheet.git
• $ npm install

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.

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