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Zoom Limit and Step

tip

You can retrieve the zoom factor and set onZoom actions using the following:

Please note that this is different from other context retrieval methods to allow multiple viewports.

e.g., you can get SnackbarContext with scene.snackbarCtx

// suppose you have a setZoomFactor function to
// set your local variable
const round = (input) => input.toFixed(2)
setZoomFactor(scene.getViewportCtx().scale)
scene.getViewportCtx().setOnZoom((n, prev) => {
    setZoomStep(round(Math.abs(n - prev)))
    setZoomFactor(round(n))
})

Zoom-in/out limit​

new GlobalConfigGenerator()
    .zoomUpperBound(0.9)
    .zoomLowerBound(0.6)

Zoom Step​

new GlobalConfigGenerator()
    .zoomUpperBound(3)
    .zoomLowerBound(0.2)
    .zoomStep(1.3)