@itk-wasm/mesh-to-poly-data/src/poly-data-to-mesh-node.ts

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

// Generated file. To retain edits, remove this comment.

import {
  PolyData,
  Mesh,
  InterfaceTypes,
  PipelineOutput,
  PipelineInput,
  runPipelineNode
} from 'itk-wasm'

import PolyDataToMeshNodeResult from './poly-data-to-mesh-node-result.js'

import path from 'path'
import { fileURLToPath } from 'url'

/**
 * Convert an itk::PolyData to an itk::Mesh
 *
 * @param {PolyData} polyData - Input polydata
 *
 * @returns {Promise<PolyDataToMeshNodeResult>} - result object
 */
async function polyDataToMeshNode(
  polyData: PolyData
) : Promise<PolyDataToMeshNodeResult> {

  const desiredOutputs: Array<PipelineOutput> = [
    { type: InterfaceTypes.Mesh },
  ]

  const inputs: Array<PipelineInput> = [
    { type: InterfaceTypes.PolyData, data: polyData },
  ]

  const args = []
  // Inputs
  const polyDataName = '0'
  args.push(polyDataName)

  // Outputs
  const meshName = '0'
  args.push(meshName)

  // Options
  args.push('--memory-io')

  const pipelinePath = path.join(path.dirname(fileURLToPath(import.meta.url)), 'pipelines', 'poly-data-to-mesh')

  const {
    returnValue,
    stderr,
    outputs
  } = await runPipelineNode(pipelinePath, args, desiredOutputs, inputs)
  if (returnValue !== 0 && stderr !== "") {
    throw new Error(stderr)
  }

  const result = {
    mesh: outputs[0]?.data as Mesh,
  }
  return result
}

export default polyDataToMeshNode