wui-bigdata/dist-modules/BrushSample.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 BrushSample = function (_Component) {
  _inherits(BrushSample, _Component);

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

    var _this = _possibleConstructorReturn(this, Object.getPrototypeOf(BrushSample).call(this));

    _this.dataset = [];
    for (var i = 0; i < 150; i++) {
      _this.dataset.push([Math.random() * 10, Math.random() * 10]);
    }

    _this.state = {
      xmin: 0,
      xmax: 0,
      ymin: 0,
      ymax: 0
    };
    return _this;
  }

  _createClass(BrushSample, [{
    key: 'onBrushed',
    value: function onBrushed() {
      var extent = this.brush.extent();
      var xmin = extent[0][0];
      var xmax = extent[1][0];
      var ymin = extent[0][1];
      var ymax = extent[1][1];

      this.setState({
        xmin: xmin, xmax: xmax, ymin: ymin, ymax: ymax
      });
    }
  }, {
    key: 'componentDidMount',
    value: function componentDidMount() {
      this.brush = _d2.default.svg.brush().x(this.xScale).y(this.yScale).extent([[0, 0], [0, 0]]).on('brush', this.onBrushed.bind(this));

      _d2.default.select(this.refs.brush).call(this.brush).selectAll('rect').style('fill-opacity', 0.3);
    }
  }, {
    key: 'render',
    value: function render() {
      var _this2 = this;

      var width = 600;
      var height = 600;
      var padding = { left: 50, right: 50, top: 50, bottom: 50 };
      this.xScale = _d2.default.scale.linear().domain([0, 10]).range([padding.left, width - padding.right]);
      this.yScale = _d2.default.scale.linear().domain([10, 0]).range([padding.top, height - padding.bottom]);
      return _react2.default.createElement(
        'svg',
        { width: width, height: height },
        this.dataset.map(function (d, i) {
          var color = 'black';

          if (d[0] >= _this2.state.xmin && d[0] <= _this2.state.xmax && d[1] >= _this2.state.ymin && d[1] <= _this2.state.ymax) {
            color = 'red';
          }

          return _react2.default.createElement('circle', { key: i,
            cx: _this2.xScale(d[0]),
            cy: _this2.yScale(d[1]),
            r: 5,
            fill: color });
        }),
        _react2.default.createElement('g', { ref: 'brush' })
      );
    }
  }]);

  return BrushSample;
}(_react.Component);

exports.default = BrushSample;