/**
* Updates the cached values for the minimum and maximum data values on the basis that the
* specified item has just been removed.
*
* @param item the item added (<code>null</code> not permitted).
* @since 1.0.13
*/
private void updateBoundsForRemovedItem(XYDataItem item) {
boolean itemContributesToXBounds = false;
boolean itemContributesToYBounds = false;
double x = item.getXValue();
if (!Double.isNaN(x)) {
if (x <= this.minX || x >= this.maxX) {
itemContributesToXBounds = true;
}
}
if (item.getY() != null) {
double y = item.getYValue();
if (!Double.isNaN(y)) {
if (y <= this.minY || y >= this.maxY) {
itemContributesToYBounds = true;
}
}
}
if (itemContributesToYBounds) {
findBoundsByIteration();
} else if (itemContributesToXBounds) {
if (getAutoSort()) {
this.minX = getX(0).doubleValue();
this.maxX = getX(getItemCount() - 1).doubleValue();
} else {
findBoundsByIteration();
}
}
}
/**
* Updates the cached values for the minimum and maximum data values.
*
* @param item the item added (<code>null</code> not permitted).
* @since 1.0.13
*/
private void updateBoundsForAddedItem(XYDataItem item) {
double x = item.getXValue();
this.minX = minIgnoreNaN(this.minX, x);
this.maxX = maxIgnoreNaN(this.maxX, x);
if (item.getY() != null) {
double y = item.getYValue();
this.minY = minIgnoreNaN(this.minY, y);
this.maxY = maxIgnoreNaN(this.maxY, y);
}
}
