# @itk-wasm/mesh-to-poly-data

[![npm version](https://badge.fury.io/js/@itk-wasm%2Fmesh-to-poly-data.svg)](https://www.npmjs.com/package/@itk-wasm/mesh-to-poly-data)

> Convert an ITK Mesh to a simple data structure compatible with vtkPolyData.

## Installation

```sh
npm install @itk-wasm/mesh-to-poly-data
```

## Usage

### Browser interface

Import:

```js
import {
  meshToPolyData,
  polyDataToMesh,
  setPipelinesBaseUrl,
  getPipelinesBaseUrl,
} from "@itk-wasm/mesh-to-poly-data"
```

#### meshToPolyData

*Convert an itk::Mesh to an itk::PolyData*

```ts
async function meshToPolyData(
  mesh: Mesh,
  options: MeshToPolyDataOptions = {}
) : Promise<MeshToPolyDataResult>
```

| Parameter |  Type  | Description |
| :-------: | :----: | :---------- |
|   `mesh`  | *Mesh* | Input mesh  |

**`MeshToPolyDataOptions` interface:**

|   Property  |             Type            | Description                                                                                                                                           |
| :---------: | :-------------------------: | :---------------------------------------------------------------------------------------------------------------------------------------------------- |
| `webWorker` | *null or Worker or boolean* | WebWorker for computation. Set to null to create a new worker. Or, pass an existing worker. Or, set to `false` to run in the current thread / worker. |
|   `noCopy`  |          *boolean*          | When SharedArrayBuffer's are not available, do not copy inputs.                                                                                       |

**`MeshToPolyDataResult` interface:**

|   Property  |    Type    | Description                     |
| :---------: | :--------: | :------------------------------ |
|  `polyData` | *PolyData* | Output polydata                 |
| `webWorker` |  *Worker*  | WebWorker used for computation. |

#### polyDataToMesh

*Convert an itk::PolyData to an itk::Mesh*

```ts
async function polyDataToMesh(
  polyData: PolyData,
  options: PolyDataToMeshOptions = {}
) : Promise<PolyDataToMeshResult>
```

|  Parameter |    Type    | Description    |
| :--------: | :--------: | :------------- |
| `polyData` | *PolyData* | Input polydata |

**`PolyDataToMeshOptions` interface:**

|   Property  |             Type            | Description                                                                                                                                           |
| :---------: | :-------------------------: | :---------------------------------------------------------------------------------------------------------------------------------------------------- |
| `webWorker` | *null or Worker or boolean* | WebWorker for computation. Set to null to create a new worker. Or, pass an existing worker. Or, set to `false` to run in the current thread / worker. |
|   `noCopy`  |          *boolean*          | When SharedArrayBuffer's are not available, do not copy inputs.                                                                                       |

**`PolyDataToMeshResult` interface:**

|   Property  |   Type   | Description                     |
| :---------: | :------: | :------------------------------ |
|    `mesh`   |  *Mesh*  | Output mesh                     |
| `webWorker` | *Worker* | WebWorker used for computation. |

#### setPipelinesBaseUrl

*Set base URL for WebAssembly assets when vendored.*

```ts
function setPipelinesBaseUrl(
  baseUrl: string | URL
) : void
```

#### getPipelinesBaseUrl

*Get base URL for WebAssembly assets when vendored.*

```ts
function getPipelinesBaseUrl() : string | URL
```


### Node interface

Import:

```js
import {
  meshToPolyDataNode,
  polyDataToMeshNode,
} from "@itk-wasm/mesh-to-poly-data"
```

#### meshToPolyDataNode

*Convert an itk::Mesh to an itk::PolyData*

```ts
async function meshToPolyDataNode(
  mesh: Mesh
) : Promise<MeshToPolyDataNodeResult>
```

| Parameter |  Type  | Description |
| :-------: | :----: | :---------- |
|   `mesh`  | *Mesh* | Input mesh  |

**`MeshToPolyDataNodeResult` interface:**

|  Property  |    Type    | Description     |
| :--------: | :--------: | :-------------- |
| `polyData` | *PolyData* | Output polydata |

#### polyDataToMeshNode

*Convert an itk::PolyData to an itk::Mesh*

```ts
async function polyDataToMeshNode(
  polyData: PolyData
) : Promise<PolyDataToMeshNodeResult>
```

|  Parameter |    Type    | Description    |
| :--------: | :--------: | :------------- |
| `polyData` | *PolyData* | Input polydata |

**`PolyDataToMeshNodeResult` interface:**

| Property |  Type  | Description |
| :------: | :----: | :---------- |
|  `mesh`  | *Mesh* | Output mesh |