Function labelLayout

libs/echarts/echarts.simple.js:44085–44215

(seriesModel, r, viewWidth, viewHeight, viewLeft, viewTop)

}

var labelLayout = function (seriesModel, r, viewWidth, viewHeight, viewLeft, viewTop) {
    var data = seriesModel.getData();
    var labelLayoutList = [];
    var cx;
    var cy;
    var hasLabelRotate = false;
    var minShowLabelRadian = (seriesModel.get('minShowLabelAngle') || 0) * RADIAN$1;

    data.each(function (idx) {
        var layout = data.getItemLayout(idx);

        var itemModel = data.getItemModel(idx);
        var labelModel = itemModel.getModel('label');
        // Use position in normal or emphasis
        var labelPosition = labelModel.get('position') || itemModel.get('emphasis.label.position');
        var labelDistance = labelModel.get('distanceToLabelLine');
        var labelAlignTo = labelModel.get('alignTo');
        var labelMargin = parsePercent$1(labelModel.get('margin'), viewWidth);
        var bleedMargin = labelModel.get('bleedMargin');
        var font = labelModel.getFont();

        var labelLineModel = itemModel.getModel('labelLine');
        var labelLineLen = labelLineModel.get('length');
        labelLineLen = parsePercent$1(labelLineLen, viewWidth);
        var labelLineLen2 = labelLineModel.get('length2');
        labelLineLen2 = parsePercent$1(labelLineLen2, viewWidth);

        if (layout.angle < minShowLabelRadian) {
            return;
        }

        var midAngle = (layout.startAngle + layout.endAngle) / 2;
        var dx = Math.cos(midAngle);
        var dy = Math.sin(midAngle);

        var textX;
        var textY;
        var linePoints;
        var textAlign;

        cx = layout.cx;
        cy = layout.cy;

        var text = seriesModel.getFormattedLabel(idx, 'normal')
                || data.getName(idx);
        var textRect = getBoundingRect(
            text, font, textAlign, 'top'
        );

        var isLabelInside = labelPosition === 'inside' || labelPosition === 'inner';
        if (labelPosition === 'center') {
            textX = layout.cx;
            textY = layout.cy;
            textAlign = 'center';
        }
        else {
            var x1 = (isLabelInside ? (layout.r + layout.r0) / 2 * dx : layout.r * dx) + cx;
            var y1 = (isLabelInside ? (layout.r + layout.r0) / 2 * dy : layout.r * dy) + cy;