var zoomArea = { x: selection.x - me.el.getX(), width: selection.width }; var xScale = me.chartBBox.width, zoomer = { x: zoomArea.x / xScale, width: zoomArea.width / xScale }; var ends = me.axes.items[1].calcEnds(); var from = (ends.to - ends.from) * zoomer.x + ends.from; var to = (ends.to - ends.from) * zoomer.width + from; me.axes.items[1].fromDate = from; me.axes.items[1].toDate = to; me.setZoom(selection); me.mask.hide(); me.refresh();

After zooming the lines of the graph go beyond the limits of the graph. How to deal with it?

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