# Splines and Bezier Curves

These three tools each use a series of points to create a curve.Â

**Spline by Control Points**

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**Spline by Fit Points**

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**Bezier**

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For **Spline by Control Points**, the points act as a guide for the curve; the spline does not actually pass through all of the points. **For Spline by Fit Points** and **Bezier**, the curve does pass through each point. These two tools produce similar results; the main difference is the algorithm behind them, and how they are edited.

**Note:** To create splines in 3D, 3D Spline by Fit Points.

The three curves will be shown for this series of points:

Select the control points in the desired order. You can also enter the length and angle between points in the Inspector Bar. After selecting the last point, select **Finish** from the local menu or press Alt+F. You can also double-click the last point.

**Spline by Control Points**

**Spline by Fit Points**

**Bezier**

If you want to close the curve, select **Close** from the local menu instead of **Finish**.

**Closed Spline by Control Points**

**Closed Spline by Fit Points**

Once created, you can use the **Edit** **Tool** to change the shape of a spline and add knots. See Editing Splines and Bezier Curves.

**Tip:** You can change a spline into a Bezier curve, and vice-versa, by opening the **Properties** window and editing the **Curves** page. If you change a Bezier curve into a spline, it will be a **Spline by Control Points**. You can also convert 2D objects into a Bezier curve - see Convert to Curve.