I tried this example in typescript, but below error occured.
SphereAndLabels.ts:44:22 - error TS2345: Argument of type '(coordsList: any) => void' is not assignable to parameter of
type '() => any'.
Target signature provides too few arguments. Expected 1 or more, but got 0.
44 psMapper.setCallback((coordsList) => {
Maybe lacking of type difinitions for parameters of callback in index.d.ts files causes this error.
/**
* Set the callback function the mapper will call, during the rendering
* process, with the screen coords of the points in dataset. The callback
* function will have the following parameters:
*
* // An array of 4-component arrays, in the index-order of the datasets points
*
* coords: [
* [screenx, screeny, screenz, zBufValue],
* ...
* ]
* // The active camera of the renderer, in case you may need to compute alternate
* // depth values for your dataset points. Using the sphere mapper in your
* // application code is one example where this may be useful, so that you can
* // account for that mapper's radius when doing depth checks.
*
* camera: vtkCamera
* // The aspect ratio of the render view and depthBuffer
* aspect: float
* // A Uint8Array of size width * height * 4, where the zbuffer values are
* // encoded in the red and green components of each pixel. This will only
* // be non-null after you call setUseZValues(true) on the mapper before
* // rendering.
*
* depthBuffer: Uint8Array
*
* @param callback
*/
setCallback(callback: () => any): boolean