# `GeometryWrite`

> Contract 2.0.0 · package sha256 `a857eca95b35921109faf997094bb4192f12527d9d0fcd4be7e97f06425bad6e` · generated from `configurator-runtime.d.ts` by `services/onsite-scripter/scripts/build-contract-docs.mjs`; edit the source, not this file.

Interface · `import type { GeometryWrite } from '@holostep-configurators/runtime-client/contract';` · labs, `@experimental` · since 2.0.0 · section 20. Labs

New vertex data for [`labs.geometry.write`](Labs.geometry.write.md): same vertex count and order as the part's.

## Members

| Member | Kind | Summary |
| --- | --- | --- |
| <a id="position"></a>[`position?`](GeometryWrite.position.md) | property | x, y, z per vertex, part-local metres. |
| <a id="normal"></a>[`normal?`](GeometryWrite.normal.md) | property | x, y, z per vertex. |
| <a id="uv"></a>[`uv?`](GeometryWrite.uv.md) | property | u, v per vertex; index = UV channel 0–3, as [`GeometryData.uv`](GeometryData.uv.md). |

## Declaration

```ts
export interface GeometryWrite {
  position?: Float32Array;
  normal?: Float32Array;
  uv?: ReadonlyArray<Float32Array | undefined>;
}
```

## Generic-API test (spec 3.1)

| Rule | Result |
| --- | --- |
| 1. Neutral name | pass: `GeometryWrite` names no product |
| 2. A precedent | pass: [Unity Mesh.SetVertices](https://docs.unity3d.com/ScriptReference/Mesh.SetVertices.html) (row `K54`) |
| 3. Two apps, or labs | labs (`@experimental` at a stable path, reached through `has()` or `supports()`): it graduates when a second app uses it; apps today: app-b362a81c85, app-bcb7ef21da, app-f9a32142f1 |
| 4. The cheaper fix first | decided per need in Appendix B: rows `K54` at tier asset, labs (a member only where no rule, data, asset or app code serves the need) |