Importing and exporting soundings

The sounding export function allows you to export soundings in ASCII format for use in other applications. It is also useful for backing up separate sounding files from a project, for instance, to import them into another project or for archiving.

The ASCII import function allows you to import soundings written in ASCII format.
For instance, to import a sounding exported from another Hydromagic project, or created with other software.

Exporting sounding data

The sounding export function allows you to export your soundings in ASCII format. You can use this feature to create backups of your work, or when you want to use the data in other applications.

To start, open the "Export Sounding" dialog by selecting "File" => "Export" => "Export Sounding Data..." from the main menu.

Select output folder

Click the "Browse..." button to select the destination folder for the data to export. All selected soundings will be stored in the same selected folder.

"Overwrite existing files without warning"

When this option is enabled (checked), there will be no confirmation if you export the soundings to the same folder again. All existing ASCII sounding data in the selected folder will be directly overwritten by the new data.

"Merge all selected soundings into a single ASCII files"

By default, each sounding selected for export will be written as a separate file. When this option is enabled, all sounding data will be merged into a single ASCII file instead.

Select soundings

To select which soundings will be exported, click the "Select..." button in the "Select Soundings" section. A selection dialog containing all soundings will be displayed making it easy to make a selection.

Select format options and field order

The output format is fully customizable, the following fields can be selected for export:

• Longitude;
• Latitude;
• Easting;
• Northing;
• Depth;
• Tide;
• Ellipsoidal height;
• Orthometric height;
• Date;
• Time;
• Draft;
• Heading;
• Speed;
• Sound velocity correction.

To customize the exported fields, and the field order, click the "Select..." button in the "Format" section. The following dialog will be shown, allowing you to select the exported fields. Click "OK" to confirm and return to the "Export ASCII" dialog.

Select map projection and units

It is possible to store the file using a coordinate reference system other than the one you are currently using in your project. To change the output coordinate system, click the "Select..." button and select the coordinate system, or select the WGS84 when using geographic coordinates. In this section you can also specify in which units the depth should be written to the ASCII file.

Starting the export process

Click 'OK' to start writing the file. When all parameters were entered correctly, the exported file(s) should appear in the folder you selected.

Video Tutorial

The following YouTube video tutorial shows how to export your filtered sounding data as ASCII files. Click below to play the video. When you like the video, please click the like button and subscribe so you will receive an update when new video tutorials on Hydromagic are uploaded.

In Hydromagic, processing sounding data can be exported as ASCII text file.