Eye4Software Hydromagic

Hydrographic Survey Software


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ODEC files

ODEC files are very similar to NMEA0183 sentences, but they are used to store binary data as well. This format is used by SyQwest to encode bathymetric data.

  $PNTI,103,M,5,0,0,0,0,15,0,G,*16
  $PNTI,105,O,1,60,0,8,31,4835,0,I,*1A
  $PNTI,171,10/13/05,09:41:17,0.40,*0E
  $PNTI,111,I,1,03675,0,0060,0000,03296,[binary data]
  $PNTI,151,10/13/05,09:41:17.13, 43.098412967,-76.212088367,  0.0, 0.0,*30
  $PNTI,111,I,2,00000,0,0060,0000,03296,[binary data]
  $PNTI,151,10/13/05,09:41:17.19, 43.098412550,-76.212090467,  0.0, 0.0,*3C
  $PNTI,111,I,1,03675,0,0060,0000,03296,[binary data]
  $PNTI,151,10/13/05,09:41:17.24, 43.098412550,-76.212090467,  0.0, 0.0,*32
  
Example ODEC data file


Starting the raw data import wizard

All file formats which Hydromagic is able to convert to raw data files, can be imported through the raw data import wizard.
To start the wizard, right-click the 'Raw Data' folder in the 'Project Explorer' and select the 'Import Data Wizard...' option.

Starting the raw data import wizard


Select file format

The first page of the wizard allows you to set the format of the file(s) we wish to import.
Since this tutorial is about importing ODEC data files, we select the 'ODEC Files (*.odc)' option from the drop-down list.

Select file format


Select file(s) to import

In the second page of the wizard you can select which files to import.
Click the 'Browse...' button to select the folder on your computer where the files are stored.

After changing the folder the file list is reloaded, and you can use the check boxes to select one or more file(s) to import.

Select file(s) to import


Import options

Since the draft is not (always) written in the ODC file, you have the possibility to set the transducer draft here.

import options


Starting the import

When the format, the files and the additional options has been set, you can start the import process by clicking the 'Finish' button on the last page of the wizard.

The file currently processed is displayed in the statusbar at the bottom of the screen and the wizard shows a message box stating 'File(s) successfully imported as raw data file(s)' as soon as the process has completed. Click 'OK' to close the dialog and the imported files will be centered in the map view (only when they contain position data).

import options


Checking the imported raw data file(s)

When the import has completed, you can right-click the generated raw data files, and select 'Analyze Data...' to inspect the imported values and timestamps.