Topic:
How to export 2D navigation to ASCII file (10.2).

Description:
This option takes over from the manual method used in 10.1. You can select
surveys/lines and output navigation files using the original data points or
filtered data points. 

Solution:
Use IESX_Util Option 72. 

Things to keep in mind:
1.) A filtered navigation report contains sp's in an increment of one (1)
    regardless of the original sp increment.

2.) If your project only has navigation (no seismic), this utility will not
    work.

3.) The last sp is omitted in a filtered report.

4.) If you attempt to change the navigation tolerance on a line with a bad sp
    table, the process may fail and exit from option 72. Use Renumber 2D in the 
    IESX DataManager to repair the bad sp table.
 
Assume you want to select all 2D lines in all surveys, and that you want the
original points:

Select iesx_util.csh from the Application Selection menu.

1.)  #1 - Initialize access to a data area
2.)  #72 - 2D General data manager
3.)  #0 - Select format of report
4.)  #3 - Navigational data only
     You will be asked to :
     Please enter default directory for report, 'home' means home directory.
5.)  #1 - Original points
     You will get a message:
      ***Finished selecting content, hit return to continue.
6.)  #2 - Select survey
7.)  -9 - to select all surveys.
     You will get the following message:
     ***Selection successful, hit return to continue.
8.)  #3 - Select lines
9.)  -9 - to select all lines.
     You  will get the following message:
     Finished selection, please hit enter to continue.
10.) #10 - Generate report
      You will be asked:
      Enter filename for report:
      After entering a file name, you will be given the following message:
      ***Finished report, hit return to continue.
  
11.) #99 - Terminate 2D reporting
12.) #2  - Terminate Access to a data area


Example file:
=============
HYOUR_PROJECT_NAME_HERE 
HDESCRIPTION_OF_PROJECT 
HPROJECTION: STATE ZONE 1702 
H 
HSPHEROID: CLARK_1866 
HCARTUNITS: METERS 
PROJUNITS:  Feet 
HFORMAT: NAVIGATION DATA 
HEADER 
HEADER 
HEADER 
HEADER 
HEADER 
HEADER 
HEADER 
HEADER 
HEADER 
HEADER 
               X               Y         CDP           SP    latitude   longtitude       Line Name 
HEADER7890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890 
  
      1700112.00      -163839.00     587.000     5577.000  28.2128359  -92.2640657       1443                           
           
      1700170.68      -163781.65     588.000     5578.000  28.2129949  -92.2638851       1443                           
           
      1700229.35      -163724.30     589.000     5579.000  28.2131538  -92.2637044       1443                           
           
      1700288.03      -163666.96     590.000     5580.000  28.2133128  -92.2635238       1443  

As you might have seen along the way, you have choices in selecting all surveys
or just the ones you want.  You also get the choice of selecting all 2D lines or
just the ones you want.

This file can be edited in UNIX to remove any Header records you do not need.    



Last Modified on: 04-DEC-98