---
title: "Point3d"
subtitle: "Type in std::types"
excerpt: "A point in three dimensional space."
layout: manual
---

A point in three dimensional space.

```kcl
type Point3d = [number(Length); 3]
```

[`Point3d`](/docs/kcl-std/types/std-types-Point3d) is an alias for a three-element array of [number](/docs/kcl-std/types/std-types-number)s. To write a value
with type [`Point3d`](/docs/kcl-std/types/std-types-Point3d), use an array, e.g., `[0, 0, 0]` or `[5.0, 3.14, 6.8]`.



