Creates a smooth curve that passes through or near a set of fit points, or that is defined by the vertices in a control frame. SPLINE creates curves called nonuniform rational B-splines (NURBS), referred to as splines for simplicity. Splines are defined either with fit points, or with control vertices.

## How do I create a spline in AutoCAD?

**Draw a Spline**

- Click Home tab Draw panel Spline.
- (Optional) Enter m (Method). Then enter either f (Fit Points) or cv (Control Vertices).
- Specify the first point of the spline.
- Specify the next point of the spline. Continue specifying points as needed.
- Press Enter to end, or enter c (Close) to close the spline.

## What is the difference between spline and polyline?

Splines curves are curves that are represented by a special class of mathematics. Polylines on the other hand are line segments strung **together**. In VisualMill all splines are converted to polylines using the tolerance specified in the machining operations before the toolpath is created.

## Why do we use spline?

Splines **add curves together to make a continuous and irregular curves**. When using this tool, each click created a new area to the line, or a line segment. Each click also creates what’s called a control point, or points that determine the shape of the curve. And that’s the gist of a spline.

## How do you dimension a spline?

To dimension a spline, **you must dimension its endpoints**. You need not add spline dimensions if the spline is attached to other geometry and the endpoints are dimensioned. You can dimension spline endpoints using linear dimensions, tangency (angular) dimensions, and radius-of-curvature dimensions.

## How do you spline?

**Draw a Spline**

- Click Home tab Draw panel Spline. Find.
- (Optional) Enter m (Method). Then enter either f (Fit Points) or cv (Control Vertices).
- Specify the first point of the spline.
- Specify the next point of the spline. Continue specifying points as needed.
- Press Enter to end, or enter c (Close) to close the spline.

## How do I join the spline?

**To Join Polylines, Splines, Lines, and Arcs Into a Single…**

- Click Home tab Modify panel Edit Polyline. Find.
- Select a polyline, spline, line, or arc to edit. …
- Enter j (Join).
- Select one or more polylines, splines, lines, or arcs that are located end to end.
- Press Enter to end the command.

## What do you mean by spline?

In computer graphics, a spline is **a curve that connects two or more specific points**, or that is defined by two or more points. The term can also refer to the mathematical equation that defines such a curve.

## What is 3D Poly?

A 3D polyline is **a connected sequence of straight line segments created as a single object**. 3D polylines can be non-coplanar; however, they cannot include arc segments. … Draws a straight line from the previous point to the specified new point. The prompt is repeated until you press Enter to end the command.

## How do you explode a spline?

If the spline and arc are joined as a single polyline object, **type X or EXPLODE at the command line**, select the object, and hit the Enter key. The spline and arc objects will now be separate objects.