# void point::SetLen(int)

[Family: point](/imperivm/en/CKS/familias/point/)

## Exact signature

```text
void point::SetLen(int)
```

## Description

Rescales the point's integer coordinates toward the requested vector length, modifying the point in place. Integer arithmetic and truncation can make the resulting length differ from the requested value.

## Usage notes

The argument is the requested length. On the documented calculation path, each coordinate is multiplied by that value and divided with truncation toward zero. Products use 32-bit arithmetic. Behavior with a zero computed divisor, invalid references, or values that cause overflow is not fully documented.

## Parameters and return type

**Return type:** `void`

The member is called on an object. Its receiver is not repeated among this signature’s arguments.

| Position | Type |
| --- | --- |
| 1 | `int` |

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