Return union of two traces (t1+t2).
t1 + t2
plus(t1,t2)
When operating on two coordinate traces, the PLUS function returns the union (i.e., all unique coordinates in sorted order).
>> t1=imat_ctrace('5y', '6rx', '3z', '4x-')
t1 =
'5Y
'6RX+'
'3Z+'
'4X-'
>> t2=imat_ctrace('4x', '3z', '2z-', '5y', '8x+')
t2 =
'4X+'
'3Z+'
'2Z-'
'5Y+'
'8X+'
>> t=t1+t2
t =
'2Z-'
'3Z+'
'4X+'
'4X-'
'5Y+'
'6RX+'
'8X+'
>>