Function drawRadarLabel

front/components/u-charts/u-charts.js:1603–1628

(angleList, radius, centerPosition, opts, config, context)

}

function drawRadarLabel(angleList, radius, centerPosition, opts, config, context) {
  var radarOption = opts.extra.radar || {};
  radius += config.radarLabelTextMargin;

  angleList.forEach(function(angle, index) {
    var pos = {
      x: radius * Math.cos(angle),
      y: radius * Math.sin(angle)
    };
    var posRelativeCanvas = convertCoordinateOrigin(pos.x, pos.y, centerPosition);
    var startX = posRelativeCanvas.x;
    var startY = posRelativeCanvas.y;
    if (util.approximatelyEqual(pos.x, 0)) {
      startX -= measureText(opts.categories[index] || '') / 2;
    } else if (pos.x < 0) {
      startX -= measureText(opts.categories[index] || '');
    }
    context.beginPath();
    context.setFontSize(config.fontSize);
    context.setFillStyle(radarOption.labelColor || '#666666');
    context.fillText(opts.categories[index] || '', startX, startY + config.fontSize / 2);
    context.closePath();
    context.stroke();
  });

}

function drawPieText(series, opts, config, context, radius, center) {
  var lineRadius = config.pieChartLinePadding;