+
+ // Now we remove series from seriesToAxisMap_ which are not visible. We do
+ // this last so that hiding the first series doesn't destroy the axis
+ // properties of the primary axis.
+ var seriesToAxisFiltered = {};
+ var vis = this.visibility();
+ for (var i = 1; i < labels.length; i++) {
+ var s = labels[i];
+ if (vis[i - 1]) seriesToAxisFiltered[s] = this.seriesToAxisMap_[s];
+ }
+ this.seriesToAxisMap_ = seriesToAxisFiltered;