const analysis = new SliceAnalysis({
  shape: new SlicePlane({
    position: new Point({
      x: -8238840,
      y: 4971700,
      z: 21,
      spatialReference: SpatialReference.WebMercator,
    }),
    tilt: 0,
    width: 70,
    height: 100,
    heading: 278,
  }),
});

viewElement.analyses.add(analysis);

const analysisView = await viewElement.whenAnalysisView(analysis);
analysisView.interactive = true;

let abortController;
async function placeContinuous() {
  // Stop any previous placing and create a new controller.
  abortController?.abort();
  abortController = new AbortController();
  // Get a reference to the signal for the new placement operation.
  const { signal } = abortController;
  try {
    // After one analysis is placed, call the place() method again.
    // This is done until the placing is aborted.
    while (!signal.aborted) {
      // Pass the signal as an argument to the interactive place method.
      await activeTool.analysisView.place({
        signal,
      });
    }
  } catch (error) {
    // Avoid logging the abort errors.
    if (!promiseUtils.isAbortError(error)) {
      throw error;
    }
  } finally {
    // Remove the controller if this was the last started placement.
    if (abortController?.signal === signal) {
      abortController = null;
    }
  }
}

doneButton.addEventListener("click", () => {
  abortController.abort();
});