Reference Curve
When you select Reference from the Properties Table, HyperGraph sets the curve as the reference curve.
- The curve (and shading, if areas are shaded) move behind the grid lines of the plot, so that the grid lines are visible over the curve/shading.
- Autofit does not apply to the curve.
Below is an example of a curve with the Reference property turned on (“Zero Y” shading). See Curve Shading for more information.
![](../../images/hypergraph/RefPropTurnedOn.png)
Figure 1.
![](../../images/hypergraph/bar_plot_reference_curve.png)
Figure 2.