> ## Documentation Index
> Fetch the complete documentation index at: https://docs.nodi3d.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ArcSED

> Arc SED node: Create an arc from start point, end point, and direction at start. Curve › Primitive node in Nodi, with its inputs, outputs and properties.

Create an arc from start point, end point, and direction at start.

**Category**: [Curve](https://docs.nodi3d.com/nodi-editor/nodes.md#curve) › Primitive\
**Shown in the node menu as**: Arc SED

## Inputs

| Input | Type |
| - | - |
| start point of arc | `Point, Plane` |
| end point of arc | `Point, Plane` |
| direction at start | `Vector, Plane` |

## Outputs

| Output | Type |
| - | - |
| resulting arc | `Curve` |
| arc plane | `Plane` |
| arc radius | `Number` |

## Properties

Properties are set in the Inspector and are used when the matching input is not connected.

| Property | Type |
| - | - |
| start | `Point3d` |
| end | `Point3d` |
| direction | `Vector3d` |

## Related nodes

Other nodes in Curve › Primitive:

* [Arc](https://docs.nodi3d.com/node/arc.md): Create an arc from a base plane, radius, and angles.
* [Arc3Pt](https://docs.nodi3d.com/node/arc3-pt.md): Create an arc from three points.
* [Circle](https://docs.nodi3d.com/node/circle.md): Create a circle from a base plane and radius.
* [Circle3Pt](https://docs.nodi3d.com/node/circle3-pt.md): Create a circle from three points.
* [Line](https://docs.nodi3d.com/node/line.md): Create a line from a start point and end point.
* [LineSDL](https://docs.nodi3d.com/node/line-sdl.md): Create a line from a start point, direction, and length.
* [Polygon](https://docs.nodi3d.com/node/polygon.md): Create a regular polygon from a base plane, radius, number of segments, and fillet radius.
* [Rectangle](https://docs.nodi3d.com/node/rectangle.md): Create a rectangle from a base plane, x domain, and y domain.
* [Slot](https://docs.nodi3d.com/node/slot.md): Create a slot (obround) curve: a rectangle with full semicircular ends, centred on the base plane with its length along the plane x axis.


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