Function getRoseDataPoints

front/components/u-charts/u-charts.js:1037–1073

(series, type, minRadius, radius)

}

function getRoseDataPoints(series, type, minRadius, radius) {
  var process = arguments.length > 4 && arguments[4] !== undefined ? arguments[4] : 1;
  var count = 0;
  var _start_ = 0;

  var dataArr = [];
  for (let i = 0; i < series.length; i++) {
    let item = series[i];
    item.data = item.data === null ? 0 : item.data;
    count += item.data;
    dataArr.push(item.data);
  }

  var minData = Math.min.apply(null, dataArr);
  var maxData = Math.max.apply(null, dataArr);
  var radiusLength = radius - minRadius;

  for (let i = 0; i < series.length; i++) {
    let item = series[i];
    item.data = item.data === null ? 0 : item.data;
    if (count === 0 || type == 'area') {
      item._proportion_ = item.data / count * process;
      item._rose_proportion_ = 1 / series.length * process;
    } else {
      item._proportion_ = item.data / count * process;
      item._rose_proportion_ = item.data / count * process;
    }
    item._radius_ = minRadius + radiusLength * ((item.data - minData) / (maxData - minData));
  }
  for (let i = 0; i < series.length; i++) {
    let item = series[i];
    item._start_ = _start_;
    _start_ += 2 * item._rose_proportion_ * Math.PI;
  }

  return series;
}

function getArcbarDataPoints(series, arcbarOption) {
  var process = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 1;