- setElementRect(this.bgcanvas_, this.bgcanvas_ctx_, this.canvasRect_);
- setElementRect(this.fgcanvas_, this.fgcanvas_ctx_, this.canvasRect_);
+ var pixelRatioOption = this.dygraph_.getNumericOption('pixelRatio');
+ setElementRect(this.bgcanvas_, this.bgcanvas_ctx_, this.canvasRect_, pixelRatioOption);
+ setElementRect(this.fgcanvas_, this.fgcanvas_ctx_, this.canvasRect_, pixelRatioOption);