Function avoidOverlap

libs/echarts/echarts.simple.js:43997–44078

(labelLayoutList, cx, cy, r, viewWidth, viewHeight, viewLeft, viewTop)

}

function avoidOverlap(labelLayoutList, cx, cy, r, viewWidth, viewHeight, viewLeft, viewTop) {
    var leftList = [];
    var rightList = [];
    var leftmostX = Number.MAX_VALUE;
    var rightmostX = -Number.MAX_VALUE;
    for (var i = 0; i < labelLayoutList.length; i++) {
        if (isPositionCenter(labelLayoutList[i])) {
            continue;
        }
        if (labelLayoutList[i].x < cx) {
            leftmostX = Math.min(leftmostX, labelLayoutList[i].x);
            leftList.push(labelLayoutList[i]);
        }
        else {
            rightmostX = Math.max(rightmostX, labelLayoutList[i].x);
            rightList.push(labelLayoutList[i]);
        }
    }

    adjustSingleSide(rightList, cx, cy, r, 1, viewWidth, viewHeight, viewLeft, viewTop, rightmostX);
    adjustSingleSide(leftList, cx, cy, r, -1, viewWidth, viewHeight, viewLeft, viewTop, leftmostX);

    for (var i = 0; i < labelLayoutList.length; i++) {
        var layout = labelLayoutList[i];
        if (isPositionCenter(layout)) {
            continue;
        }

        var linePoints = layout.linePoints;
        if (linePoints) {
            var isAlignToEdge = layout.labelAlignTo === 'edge';

            var realTextWidth = layout.textRect.width;
            var targetTextWidth;
            if (isAlignToEdge) {
                if (layout.x < cx) {
                    targetTextWidth = linePoints[2][0] - layout.labelDistance
                            - viewLeft - layout.labelMargin;
                }
                else {
                    targetTextWidth = viewLeft + viewWidth - layout.labelMargin
                            - linePoints[2][0] - layout.labelDistance;
                }
            }
            else {
                if (layout.x < cx) {
                    targetTextWidth = layout.x - viewLeft - layout.bleedMargin;
                }
                else {
                    targetTextWidth = viewLeft + viewWidth - layout.x - layout.bleedMargin;
                }
            }
            if (targetTextWidth < layout.textRect.width) {
                layout.text = truncateText(layout.text, targetTextWidth, layout.font);
                if (layout.labelAlignTo === 'edge') {
                    realTextWidth = getWidth(layout.text, layout.font);
                }
            }