> ## 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.

# SurfaceControlPoints

> Surface Points node: Extract NURBS properties from a surface. Surface › Analysis node in Nodi, with its inputs, outputs and properties.

Extract NURBS properties from a surface.

**Category**: [Surface](https://docs.nodi3d.com/nodi-editor/nodes.md#surface) › Analysis\
**Shown in the node menu as**: Surface Points

## Inputs

| Input | Type |
| - | - |
| surface to analyze | `Surface` |

## Outputs

| Output | Type |
| - | - |
| control points | `Point` |
| weights | `Number` |
| u knots | `Number` |
| v knots | `Number` |
| u count | `Number` |
| v count | `Number` |
| u degree | `Number` |
| v degree | `Number` |

## Related nodes

Other nodes in Surface › Analysis:

* [Area](https://docs.nodi3d.com/node/area.md): Compute the area of a geometry.
* [BoxProperties](https://docs.nodi3d.com/node/box-properties.md): Get the properties of a Box.
* [BrepEdges](https://docs.nodi3d.com/node/brep-edges.md): Extract edges of a Brep and categorize by the number of adjacent faces.
* [BrepSelect](https://docs.nodi3d.com/node/brep-select.md): Select faces, edges, or vertices from a brep interactively.
* [DeconstructBox](https://docs.nodi3d.com/node/deconstruct-box.md): Deconstruct a BBox into its components.
* [DeconstructBrep](https://docs.nodi3d.com/node/deconstruct-brep.md): Deconstruct a Brep into its faces, edges, and vertices.
* [EvaluateSurface](https://docs.nodi3d.com/node/evaluate-surface.md): Evaluate a surface at a given UV coordinate.
* [SurfaceClosestPoint](https://docs.nodi3d.com/node/surface-closest-point.md): Find the closest point on a surface to a given point.
* [SurfaceDomain](https://docs.nodi3d.com/node/surface-domain.md): Measure the domain of a surface.
* [Volume](https://docs.nodi3d.com/node/volume.md): Compute the volume and centroid of a closed Brep or Mesh.


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