TRCIN with select_on_header_word and step results in incorrect sequence

[kerimh...@gmail.com]

Hi,

I have a segy sorted by CMP-OFFSET.

CMP in range from 1 to 2142.

I'm trying to select each 50's CMP starting from 50 and last one is 2050. 

Then I pass it to GATHER and then to SVA to compute semblances of each 50's CMP.

To do that in TRIN I set:

Select_on_header_word = 7

Start = 50

End = 2050

Incr = 50

But the selected ensembles are:

```

 GROUP#=       1  HW03=      50.000  HW07=      50.000  HW37=     125.000  #OFFSETS=      25
 
 GROUP#=       2  HW03=     250.000  HW07=     250.000  HW37=     225.000  #OFFSETS=      55
 
 GROUP#=       3  HW03=     450.000  HW07=     450.000  HW37=     325.000  #OFFSETS=      60
 
 GROUP#=       4  HW03=     650.000  HW07=     650.000  HW37=     425.000  #OFFSETS=      60
 
 GROUP#=       5  HW03=     850.000  HW07=     850.000  HW37=     525.000  #OFFSETS=      60
 
 GROUP#=       6  HW03=    1049.000  HW07=    1049.000  HW37=     625.000  #OFFSETS=      60
 
 GROUP#=       7  HW03=    1050.000  HW07=    1050.000  HW37=     625.000  #OFFSETS=      60
 
 GROUP#=       8  HW03=    1051.000  HW07=    1051.000  HW37=     626.000  #OFFSETS=      60
 
 GROUP#=       9  HW03=    1249.000  HW07=    1249.000  HW37=     725.000  #OFFSETS=      60
 
 GROUP#=      10  HW03=    1250.000  HW07=    1250.000  HW37=     725.000  #OFFSETS=      60
 
 GROUP#=      11  HW03=    1251.000  HW07=    1251.000  HW37=     726.000  #OFFSETS=      60
 
 GROUP#=      12  HW03=    1449.000  HW07=    1449.000  HW37=     825.000  #OFFSETS=      60
 
 GROUP#=      13  HW03=    1450.000  HW07=    1450.000  HW37=     825.000  #OFFSETS=      60
 
 GROUP#=      14  HW03=    1451.000  HW07=    1451.000  HW37=     826.000  #OFFSETS=      60
 
 GROUP#=      15  HW03=    1649.000  HW07=    1649.000  HW37=     925.000  #OFFSETS=      60
 
 GROUP#=      16  HW03=    1650.000  HW07=    1650.000  HW37=     925.000  #OFFSETS=      60
 
 GROUP#=      17  HW03=    1651.000  HW07=    1651.000  HW37=     926.000  #OFFSETS=      60

```

As you can see there is 1049.000, 1050.000, 1051.00 etc. 

It is strange but maybe I do something wrong?

Regards,

Kerim

[kerimh...@gmail.com]

The bug was fixed with the r269 commit.

Few notes for users:

1) In TRIN we have TR_MAX=99999 by default. That may be insufficient and the user shouldn't forget to control this value according to his needs.

2) There is also SELECT job to do that.

понедельник, 10 октября 2022 г. в 12:42:38 UTC+3, kerimh...@gmail.com: