wui-bigdata/dist-modules/ChordDiagram.js

Big data visualization library for WUI framework.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _createClass = function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _d = require('d3');

var _d2 = _interopRequireDefault(_d);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

var ChordDiagram = function (_Component) {
  _inherits(ChordDiagram, _Component);

  function ChordDiagram() {
    _classCallCheck(this, ChordDiagram);

    return _possibleConstructorReturn(this, Object.getPrototypeOf(ChordDiagram).apply(this, arguments));
  }

  _createClass(ChordDiagram, [{
    key: 'render',
    value: function render() {
      var continent = ['亚洲', '欧洲', '非洲', '美洲', '大洋洲'];
      var population = [[9000, 870, 3000, 1000, 5200], [3400, 8000, 2300, 4922, 374], [2000, 2000, 7700, 4881, 1050], [3000, 8012, 5531, 500, 400], [3540, 4310, 1500, 1900, 300]];
      var chord = _d2.default.layout.chord().padding(0.03).sortSubgroups(_d2.default.ascending).matrix(population);
      var width = 600;
      var height = 600;
      var color20 = _d2.default.scale.category20();
      var innerRadius = width / 2 * 0.7;
      var outerRadius = innerRadius * 1.1;
      var arcOuter = _d2.default.svg.arc().innerRadius(innerRadius).outerRadius(outerRadius);

      var arcInner = _d2.default.svg.chord().radius(innerRadius);

      var innerPaths = _d2.default.select(this.refs['chord-svg']).selectAll('.innerPath').data(chord.chords());
      var fade = function fade(opacity, index) {
        return function () {
          innerPaths.filter(function (d) {
            return d.source.index != index && d.target.index != index;
          }).transition().style('opacity', opacity);
        };
      };

      return _react2.default.createElement(
        'svg',
        { ref: 'chord-svg', width: width, height: height },
        _react2.default.createElement(
          'g',
          { transform: 'translate(' + width / 2 + ', ' + height / 2 + ')' },
          _react2.default.createElement(
            'g',
            null,
            chord.groups().map(function (d, index) {
              return _react2.default.createElement('path', { className: 'outerPath',
                onMouseEnter: fade(0, index),
                onMouseLeave: fade(1, index),
                key: index,
                fill: color20(d.index),
                d: arcOuter(d) });
            }),
            chord.groups().map(function (d, index) {
              var angle = (d.startAngle + d.endAngle) / 2;
              var transform = 'rotate(' + angle * 180 / Math.PI + ')';

              transform += 'translate(0, ' + -1.0 * (outerRadius + 10) + ')';

              if (angle > Math.PI * 3 / 4 && angle < Math.PI * 5 / 4) {
                transform += 'rotate(180)';
              }

              return _react2.default.createElement(
                'text',
                { key: index,
                  className: 'outerText',
                  dy: '.35em',
                  transform: transform },
                continent[index]
              );
            })
          ),
          _react2.default.createElement(
            'g',
            null,
            chord.chords().map(function (d, index) {
              return _react2.default.createElement('path', { key: index,
                className: 'innerPath',
                d: arcInner(d),
                fill: color20(d.source.index) });
            })
          )
        )
      );
    }
  }]);

  return ChordDiagram;
}(_react.Component);

exports.default = ChordDiagram;