updated: 30-May-2011

 Copan Lite for Windows

Export to IOB File

While Copan does not currently process arbitrary survey networks, for those of you who have access to and know how to use the BitWise Ideas least-squares adjustment program, GeoLab, Copan is your friend.

Copan can export field data to IOB format files. Note: We do not provide help on the GeoLab software!

User-control of IOB Output

You have some control over IOB sigma records and horizontal angle output.

  1. Find your program.settings.ini file (it is in the same location as the program.trace.txt files, see User Settings Files in § File Locations).
  2. Open the file in a text editor.
  3. Copy and paste these lines to the bottom of the file.
    [Export-to-IOB]
        reducing = 1
        instrument = TS
        iob_HA_key = A
        iob_VA_key = Z
        iob_SD_key = D
    
  4. Edit as explained below.
  5. Save.
(You needn't worry about the presence/absence of blank lines or presence/absence of leading spaces or spaces either side of "=".)

Angles or Direction Sets

Do you want reduced or raw horizontal angles?

Sigma IDs

Would you like to change the Sigma IDs?

Three-character Sigma IDs are used to cross-reference the instrument's horizontal and vertical angle variances and distance variance. Edit the

Example field data

at= 1  ref= 2  HC=  0.0000                      HI= 1.617
  to= 2  HC=  0.0000  VC= 89.5735  SD=  13.231  HS= 1.584
  to= 4  HC= 92.2849  VC= 89.4558  SD=   2.349  HS= 1.509
  to= 3  HC= 10.2706  VC= 90.2528  SD=  13.270  HS= 1.641

Sample of output using above data and program.settings

 ANGL TSA 1            2            4                 92 28    49
 ZANG TSZ 1            4                              89 45    58
 DIST TSD 1            4                                    2.349
 HT       4                  1.509

Using same data and settings, except reducing = 0

 DSET TSA
 DIR      1            2                               0 00    00
 DIR      1            4                              92 28    49
 ZANG TSZ 1            4                              89 45    58
 DIST TSD 1            4                                    2.349
 HT       4                  1.509

Future Improvements

In time, we may provide a GUI for editing the settings and adding sigma values. We may allow other IOB observation records.

updated: 30-May-2011