Eye4Software Hydromagic

Hydrographic Survey Software

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Generate Soundings

When you have corrected your data, configured tides and selected correction files for draft and / or sound velocity, the software has gathered all the information to combine everything into a sounding file. In a sounding file, depth, tide, motion and position information are synchronized, and written in fixed intervals.

You can choose to write soundings at an interval defined in seconds, use the position fix interval, or you could use the times at which a depth measurement has been received.

generate soundings

Generate sounding options

Name prefix

When a raw file is converted to a sounding, it will keep the assigned number. Using the name prefix you can add a prefix to the file name. For instance, when the name prefix is set to 'SNDG', a raw file named 'RAW0006' will be named 'SNDG0006' after conversion.

Record interval

The interval at which soundings are calculated. You can use a timed interval or use the same interval at which the GPS or echosounder sends its data. The interval depends on the resolution needed and the size of the area. When a raw data file covers a very large area (>100.000 soundings) it is better to use a lower interval, for instance one second. Using a very small interval on large data files may slow down other post processing utilities.

Overwrite existing files

Using the wizard it is possible to generate a sounding file over and over again until you are fully satisfied with all settings and corrections. Checking this box will omit a warning message when you are about to overwrite a previously generated sounding file.

Generate sounding

When ready, click Finish. After a few seconds, depending on the amount of raw data, the wizard closes and the generated soundings will be visible in the project explorer. From now on, the sounding is also available as a human readable ASCII file in the "Soundings" folder of your project. In this example, with the interval of the records set to 0.25 seconds, your sounding should look like this when opened in the sounding editor:

Sounding editor

To get more information on a single sounding record (we also call this a single ping in Hydromagic), just double click the row you want all details for:

Show single sounding record