react-d3-radar/lib/EmptyRadar.js

React-based Radar chart for D3

"use strict";

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

var _react = _interopRequireDefault(require("react"));

var _RadarAxis = _interopRequireDefault(require("./RadarAxis"));

var _RadarRings = _interopRequireDefault(require("./RadarRings"));

var _utils = require("./utils");

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

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; var ownKeys = Object.keys(source); if (typeof Object.getOwnPropertySymbols === 'function') { ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) { return Object.getOwnPropertyDescriptor(source, sym).enumerable; })); } ownKeys.forEach(function (key) { _defineProperty(target, key, source[key]); }); } return target; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var defaultRadarStyle = {
  numRings: 4,
  axisColor: "#cdcdcd",
  ringColor: "#cdcdcd"
};

function EmptyRadar(props) {
  var width = props.width,
      height = props.height,
      padding = props.padding,
      variables = props.variables,
      domainMax = props.domainMax,
      style = props.style;

  var _defaultRadarStyle$st = _objectSpread({}, defaultRadarStyle, style),
      axisColor = _defaultRadarStyle$st.axisColor,
      ringColor = _defaultRadarStyle$st.ringColor,
      numRings = _defaultRadarStyle$st.numRings;

  var innerHeight = height - padding * 2;
  var innerWidth = width - padding * 2;
  var radius = Math.min(innerWidth / 2, innerHeight / 2);
  var diameter = radius * 2;
  var scales = (0, _utils.radiusScales)(variables, domainMax, radius);
  var angleSliceRadians = Math.PI * 2 / variables.length;
  var offsetAngles = {};
  (0, _utils.forEachArray)(variables, function (_ref, i) {
    var key = _ref.key;
    offsetAngles[key] = angleSliceRadians * i;
  });
  var backgroundScale = scales[variables[0].key];
  var ticks = backgroundScale.ticks(numRings).slice(1);
  var tickFormat = backgroundScale.tickFormat(numRings);
  return _react.default.createElement("svg", {
    width: width,
    height: height
  }, _react.default.createElement("g", {
    transform: "translate(".concat(padding, ", ").concat(padding, ")")
  }, _react.default.createElement("rect", {
    width: diameter,
    height: diameter,
    fill: "transparent",
    transform: "translate(".concat((innerWidth - diameter) / 2, ", ").concat((innerHeight - diameter) / 2, ")")
  }), _react.default.createElement("g", {
    transform: "translate(".concat(innerWidth / 2, ", ").concat(innerHeight / 2, ")")
  }, _react.default.createElement(_RadarRings.default, {
    ticks: ticks,
    scale: backgroundScale,
    color: ringColor,
    format: tickFormat
  }), variables.map(function (_ref2) {
    var key = _ref2.key,
        label = _ref2.label;
    return _react.default.createElement(_RadarAxis.default, {
      variableKey: key,
      key: key,
      scale: scales[key],
      offsetAngle: offsetAngles[key],
      label: label,
      domainMax: domainMax,
      color: axisColor,
      textStyle: {}
    });
  }))));
}