Function makeUpdateSliceInterpolator

src/traces/treemap/plot_one.js:368–417

(pt, onPathbar, refRect, size, opts)

    };

    var makeUpdateSliceInterpolator = function(pt, onPathbar, refRect, size, opts) {
        var prev0 = getPrev(pt, onPathbar);
        var prev;

        if(prev0) {
            // if pt already on graph, this is easy
            prev = prev0;
        } else {
            // for new pts:
            if(onPathbar) {
                prev = pathbarOrigin;
            } else {
                if(prevEntry) {
                    // if trace was visible before
                    if(pt.parent) {
                        var ref = nextOfPrevEntry || refRect;

                        if(ref && !onPathbar) {
                            prev = findClosestEdge(pt, ref, size);
                        } else {
                            // if new leaf (when maxdepth is set),
                            // grow it from its parent node
                            prev = {};
                            Lib.extendFlat(prev, interpFromParent(pt, onPathbar));
                        }
                    } else {
                        prev = Lib.extendFlat({}, pt);
                        if(isIcicle) {
                            if(opts.orientation === 'h') {
                                if(opts.flipX) prev.x0 = pt.x1;
                                else prev.x1 = 0;
                            } else {
                                if(opts.flipY) prev.y0 = pt.y1;
                                else prev.y1 = 0;
                            }
                        }
                    }
                } else {
                    prev = {};
                }
            }
        }

        return interpolate(prev, {
            x0: pt.x0,
            x1: pt.x1,
            y0: pt.y0,
            y1: pt.y1
        });
    };

    var makeUpdateTextInterpolator = function(pt, onPathbar, refRect, size) {
        var prev0 = getPrev(pt, onPathbar);