Example of fetching data to a vtkDataArray

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1

Hello,

is there an example to use the “Scalar array reference” explained here https://kitware.github.io/vtk-js/docs/structures_DataArray.html
I couldn’t figure how you can use ref data to ask an url for an array for example.

Thanks in advance for you help

2

Here is (untested) code that outlines how you can fetch JSON data containing your array values and store them in a vtkDataArray.

const resp = await fetch(URL)
const data = await resp.json()
const dataArray = vtkDataArray.newInstance({
  values: Float32Array.from(data.arrayOfValues),
  numberOfComponents: 1 // or however many components exist per datum
})
3

Thanks Forrest, that helped a lot !