/** Return the interval with elements from this not in other;
* other must not be totally enclosed (properly contained)
* within this, which would result in two disjoint intervals
* instead of the single one returned by this method.
*/
public virtual Interval DifferenceNotProperlyContained(Interval other)
{
Interval diff = null;
// other.a to left of this.a (or same)
if (other.StartsBeforeNonDisjoint(this))
{
diff = Interval.Create(Math.Max(this.a, other.b + 1),
this.b);
}
// other.a to right of this.a
else if (other.StartsAfterNonDisjoint(this))
{
diff = Interval.Create(this.a, other.a - 1);
}
return(diff);
}
/** Return the interval with elements from this not in other;
* other must not be totally enclosed (properly contained)
* within this, which would result in two disjoint intervals
* instead of the single one returned by this method.
*/
public virtual Interval DifferenceNotProperlyContained( Interval other )
{
Interval diff = null;
// other.a to left of this.a (or same)
if ( other.StartsBeforeNonDisjoint( this ) )
{
diff = Interval.Create( Math.Max( this.a, other.b + 1 ),
this.b );
}
// other.a to right of this.a
else if ( other.StartsAfterNonDisjoint( this ) )
{
diff = Interval.Create( this.a, other.a - 1 );
}
return diff;
}