/**
* Notify {@link ChartView} about updated values. {@link ChartView} will be validated.
*/
public void notifyDataUpdate(){
ArrayList<float[][]> oldCoords = new ArrayList<>(data.size());
ArrayList<float[][]> newCoords = new ArrayList<>(data.size());
for(ChartSet set : data)
oldCoords.add(set.getScreenPoints());
digestData();
for(ChartSet set : data)
newCoords.add(set.getScreenPoints());
mRegions = defineRegions(data);
if(mAnim != null)
data = mAnim.prepareUpdateAnimation(this, oldCoords, newCoords);
invalidate();
}
