How-to Work with Reson S7K Data
This How-to describes how to add and work with Reson S7K data in Qimera (Versions 2.0.0 and up).
On this page:
For additional information on using Qimera please see our Getting Started guide.
Data
The data used for this How-to is Reson 7125 data.
About Reson S7K Data
By default, Reson S7K files are converted to QPD format on import. The QPD format is used to store computed footprints and is the QPS format for processed point data.
Licensing
The import and processing of raw data formats is dependent on licensing. To view your license coverage in Qimera, go to the Help Menu and choose Show License Manager.
How-to Bring Reson S7K Data Into Qimera
1) After you open Qimera, the Projects Dialog will launch. Select New Project... to open the Create Project Dialog.
Figure 1: Qimera's Projects Dialog
Alternatively, you can create a project by clicking the Create Project Button on Qimera's Bathymetry Toolbar, or by going to the Project Menu and choosing New Project...
2) Fill in Project Details:
Add a project name.
By default, the folder for your project will be in the 'C:\Users\username\QPS-Data\' directory, though you can choose another location.
The Survey Type and Description boxes can be used to add additional notes about the project.
Set the Project Geodetics:
Automatic - Qimera will automatically extract the project coordinate system from source files or choose an appropriate UTM zone when loading Reson S7K files by looking at the geographic navigation extents.
Single Projected - If you would like your Qimera products (QPDs, surfaces, etc.) to be in a projection that differs from your source files, you can manually set the CRS from a list of pre-defined CRS using the Search Coordinate System Dialog.
Full Geodetic Configuration - If you would like your Qimera products (QPDs, surfaces, etc.) to be in a projection that differs from your source files and is not included in the list of pre-defined CRS, you can manually enter the geodetic configuration parameters. A Geodetic Configuration consists of, at minimum, a Project CRS. Additionally, it can contain an Input Geographic CRS and a Transformation between the Project CRS and the input Geographic CRS. You can also optionally have a Vertical CRS. This is done using the Geodetic Configuration Overview Dialog.
Figure 2: Create Project Dialog
3) Once the Project Geodetics are set, click CREATE to create the project. Once created, the Project Folder will contain sub-folders for storing bathymetry files in QPD format, internal metadata, extracted external source data, and products.
4) You will be prompted to add source files to your new project. Choose Add Raw Sonar Files.
Figure 3: Add Raw Sonar Files Prompt
Alternatively, you can add Raw Sonar Source Files by clicking the Add Raw Sonar File Button on Qimera's Bathymetry Toolbar, or by going to the Source Menu and choosing Add Raw Sonar Files...
5) Use the Add Files... Button to navigate to and select your S7K files.
If a Vessel Name is not found in the first S7K file, a Create New Vessel Dialog will launch. Add a Vessel Name and click OK to continue. A Vessel Assignment section will be added to the Add Raw Sonar Files Dialog and the Vessel Name will be automatically listed under Vessel Assignment. Qimera will create a vessel file with this name in your project.
NOTE: If you import data without vessel information at a later stage, you must choose the correct vessel to associate the data with since Qimera cannot determine this on its own.Figure 4: Create New Vessel Dialog
Set the Coordinate Reference System of the Imported Data.
Click OK to load the files.
Figure 5: Add Raw Sonar Files Dialog
6) Qimera will load the S7K files to the project, scanning for and extracting any available information and writing it to the Qimera project.
Shown below are:
A list with indicators showing the loading progress of each individual file in the Project Sources Dock.
The loaded tracklines visualized in the 4D Scene.
The overall progress of data extraction in the Job Activity Dock.
Any warnings or errors shown in the Job Activity Dock.
Figure 6: Information Being Extracted from the S7K Data During Load
7) As the information from the S7K files is extracted, you will see the extracted sonar information in the File Table Dock. You can review the Properties Dock to see what information was extracted for each file (make sure that you have a file selected).
Shown below are:
Figure 7: Imported Data Populating the Properties Dock and File Table Dock
8) For this example dataset, the Job Activity Dock displays a warning about SVP position and time. This just means that the SVP position and time were not available in the file or could not be read, so Sound Velocity Processing Strategies based on location or time won't be available unless you provide this information in the SVP Editor.
Figure 8: Warnings in the Job Activity Dock
Extracted information for S7K data may include:
Raw MB
Water column imagery
Vessel configuration
SVP
Surface sound speed
Orientation
Position
Height
Pressure
Sonar Settings
Other (i.e. Snippets, etc.)
For a full list of what is extracted from each supported format, click here.
In this example of the Properties Dock, you can see that Beam Time Series, Vessel Configuration, Position, and Motion were all extracted from the file, but that there was no Water Column, SVP or Tide.
Figure 9: Properties Dock
9) As information is extracted from the S7K files, the folders in the Qimera project get populated with the information.
Figure 10: Extracted Information for Line 00043 in the Metadata Folder
Figure 11: Extracted SVP Information in the SVP Folder
Visualizing a File in Qimera
Checking a file ON or OFF in the Project Sources Dock controls the visibility of the trackline.
Checking a file ON or OFF does not effect which files are used in surface creation and processing routines.
Figure 12: File Checked ON in Project Sources Dock
Figure 13: File Checked OFF in Project Sources Dock
Selecting a File in Qimera
For files to be used in a processing routine (such as Surface Creation), they can be checked ON or OFF, but they must also be selected.
Files can be selected by clicking on the file name or trackline with the mouse (use SHIFT-click or CTRL-click to select multiple files), or by selecting the parent directory above the files in the Project Sources Dock. The parent directory in Figure 14 is "Raw Sonar Files."
In this example, only lines 0002 & 0003 are selected.
Figure 14: Files Selected in Project Sources Dock
This is a key part of Qimera's workflow. For an overview of the Qimera user interface, click here.
Note: When lines have just been added to your project and you are prompted to do a process, all of the lines that were added will automatically be included in that process.