# Curve Properties

Curve properties can be set on the **Curves** page of the **Properties** window.

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**Number of segments between adjacent control points:** Curves are composed of many small line segments drawn between control points. A high number of segments will yield a smoother curve; a low number will make the curve appear more jointed.

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**High number of segments**

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**Low number of segments**

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**Bezier Curve**

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**Spline Curve**

**Bezier Curve Options:** If the curve is a Bezier curve, the following options are available:

**Show additional control points:** Additional control points will be displayed when **Edit Node** mode is active (see Edit Tool and Editing Splines and Bezier Curves). This also enables the **Keep the Curve**

**Smooth** **option**.Â

**Regular control points in Edit Node mode**

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**Additional control points in Edit Node mode**

**Keep the curve smooth:** If checked, the additional control points at each node remain linear, so that no sharp corners can be created at a node. If not checked, you can move each additional node independently.Â

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**Keep Curves Smooth - additional nodes remain linear**

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**Keep Curves Smooth disabled**

**Warning:** Modifying tools such as **Split** or **Trim** may alter a curve drastically, because the curve loses the influence of deleted control points.

**Spline Curve Options:** The degree value creates a spline of n-th order, which affects the spline smoothness.

**Show Frame:** If checked, a polyline frame will be displayed connecting the curve's control points. This provides visual feedback about how the curve is drawn.