Function makeUpdateTextInterpolator

src/traces/treemap/plot_one.js:419–464

(pt, onPathbar, refRect, size)

    };

    var makeUpdateTextInterpolator = function(pt, onPathbar, refRect, size) {
        var prev0 = getPrev(pt, onPathbar);
        var prev = {};
        var origin = getOrigin(pt, onPathbar, refRect, size);

        Lib.extendFlat(prev, {
            transform: toMoveInsideSlice({
                x0: origin.x0,
                x1: origin.x1,
                y0: origin.y0,
                y1: origin.y1,
                textBB: pt.textBB,
                _text: pt._text
            }, {
                isHeader: helpers.isHeader(pt, trace)
            })
        });

        if(prev0) {
            // if pt already on graph, this is easy
            prev = prev0;
        } else {
            // for new pts:
            if(pt.parent) {
                Lib.extendFlat(prev, interpFromParent(pt, onPathbar));
            }
        }

        var transform = pt.transform;
        if(pt.x0 !== pt.x1 && pt.y0 !== pt.y1) {
            recordMinTextSize(trace.type, transform, fullLayout);
        }

        return interpolate(prev, {
            transform: {
                scale: transform.scale,
                rotate: transform.rotate,
                textX: transform.textX,
                textY: transform.textY,
                anchorX: transform.anchorX,
                anchorY: transform.anchorY,
                targetX: transform.targetX,
                targetY: transform.targetY
            }
        });
    };

    var handleSlicesExit = function(slices, onPathbar, refRect, size, pathSlice) {
        var width = size[0];