Transition from Echoview 4
Echoview 5 and higher introduces:
- Major changes to the reading and modification of acoustic variable calibration settings.
- Echoview reads calibration settings from data files, and can also determine where changes in calibration settings occur.
- Modifications to calibration settings are made in one place - the ECS file.
- Such modifications can be specified at three levels: Fileset, SourceCal and LocalCal. Fileset and SourceCal settings apply seamlessly to multiple variables. LocalCal settings are variable-specific.
- An ECS file may be used by many EV files and is copied to EV file templates.
- Use of default calibration settings is flagged.
- Virtual variable transducer and calibration inheritance is from the first operand.
- Multi-thread processing for data reading and virtual variable chains.
- Modern document features for the Echoview application, the Variable Properties dialog box and the EV File Properties dialog box.
This page details some of the changes and their implications for existing EV files. Some existing EV files will require editing to make them work properly in Echoview 5 and higher.
Calibration upgrade considerations for Echoview 4 EV files
Before Echoview 5:
- Only, Simrad Ex60 data could take calibration values using the From first ping feature on the Calibration page of the Variable Properties dialog box.
- Onscreen editing was used to modify calibration settings. Calibration setting modification was per-variable and independent. The EV file recorded the calibration settings used for each variable.
- Where calibration values were required for calculation but were unavailable, a default value was used.
Change in Echoview 5 and higher | Symptom | Remedial action required |
Read calibration data from file. Calculations use settings read from the data file, user specified settings and default settings |
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Calibration page settings
For detailed instructions refer to:
Single target echogramsThe Echoview 5 calibration and Properties dialog box changes may affect the display of single target echograms by changing the Thickness factor on the Data page of the Variable Properties dialog box. You can modify the Thickness source and the Thickness factor to more suitable values. |
Virtual variable transducer and calibration inheritance is from the first operand. |
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Change calibration settings with an ECS file |
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For detailed instructions refer to: |
New Echoview 5.0 COM EvCalibration
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Refer to Transition for calibration scripting. |
Other upgrade considerations for Echoview 4 EV files
Change in Echoview 5 and higher | Symptom | Remedial action required |
Multi-threaded data reading |
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33+ Multi-threaded operators |
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The Echoview workspace extends outside of the Echoview window. New docking model enables echogram and other windows to dock to each other. |
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For more details refer to Navigating in Echoview: Workspace and docking. |
Modern layout Variable Properties dialog box |
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Modern layout EV File Properties dialog box |
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For more details refer to EV file Properties dialog box: Echogram page. |
Modern layout Echoview Configuration Properties dialog box |
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For more details refer to Echoview Configuration dialog box. |
Variables and Geometry window renamed to Dataflow window and features changed. |
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For more details refer to About the Dataflow window. |
Default settings for new EV files. |
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These changes affect new EV files and new virtual variables. Pre-Echoview 5 EV files with existing virtual variables are unaffected. However, please the consider the reasons for these defaults and whether they would benefit your processing and analysis. |