@Override
public Void apply(final Object context, final Object d, final int index) {
int n = valueList.size() - 1;
int i = (int) Math.floor((Math.random() * n) / 2);
int j = i + (int) Math.floor((Math.random() * n) / 2) + 1;
JSObject firstObj = valueList.get(i).getDate().getJsObject();
JSObject secondObj = valueList.get(j).getDate().getJsObject();
xScale.domain(Array.fromJavaScriptObjects(webEngine, firstObj, secondObj));
Transition transition = svg.transition().duration(750);
transition.select("." + "x" + "." + "axis").call(xAxis);
transition.select("." + "area").attr("d", area.apply(valueList));
transition.select("." + "line").attr("d", line.generate(valueList));
return null;
};
/**
* Registers the appropriate tweens so that the zoom behavior dispatches events over the course of
* the transition: a {@link ZoomEventType#ZOOMSTART} event when the transition starts from the
* previously-set view, {@link ZoomEventType#ZOOM} events for each tick of the transition, and
* finally a {@link ZoomEventType#ZOOMEND} event when the transition ends.
*
* <p>Note that the transition will be interrupted if the user starts zooming before the
* transition ends.
*
* <p>
*
* @param selection
* @return
*/
public Zoom event(Transition selection) {
JSObject jsObject = selection.getJsObject();
JSObject result = call("event", jsObject);
return new Zoom(webEngine, result);
}