javafx image zoom

public class EffectTest extends Application {
private final ImageView imageView = new ImageView();
private final ScrollPane scrollPane = new ScrollPane();
final DoubleProperty zoomProperty = new SimpleDoubleProperty(200);

@Override
public void start(Stage stage) throws Exception {

zoomProperty.addListener((Observable arg0) -> {
imageView.setFitWidth(zoomProperty.get() * 4);
imageView.setFitHeight(zoomProperty.get() * 3);
});

scrollPane.addEventFilter(ScrollEvent.ANY, (ScrollEvent event) -> {
if (event.getDeltaY() > 0) {
zoomProperty.set(zoomProperty.get() * 1.1);
} else if (event.getDeltaY() < 0) {
zoomProperty.set(zoomProperty.get() / 1.1);
}
});
Image image1 = new Image(EffectTest.class.getResourceAsStream("/effecttest/img/1156909.png"));
imageView.setImage(image1);
imageView.preserveRatioProperty().set(true);
scrollPane.setContent(imageView);

stage.setScene(new Scene(scrollPane, 400, 300));
stage.show();

}

}
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