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20150304_qastor_release

New Qastor release 2.50.2015.02.26.1

QPS Qastor 2.50.2015.02.26.1 is available for download from our website for those with a valid maintenance agreement. Here you can see the most important changes of the new version. To check the complete list, please see release notes. As of this version of Qastor, the release notes will also be part of the help documentation and you will be asked to read them the first time you start Qastor after a new installation. Release notes for a number of previous Qastor versions are also included to support skipping Qastor versions.

What's new in this version of Qastor? 

1.Bathymetric ENC (bENC)

High density bathymetric ENC`s (bENC) are now shown automatically. There is no selection button needed anymore to view a bENC. The edges of the bENC are highlighted using a blue outline. Be aware that usage of large bENC files can decrease display performance of Qastor.

2.Further GRIB enhancements

GRIB meteo files can now also be loaded and selected directly from the Information Toolbar in Qastor.

  • More viewing options of GRIB data are available directly from the Information Toolbar.
  • A GRIB bar now starts from the vessel position on an active route.
  • The cursor position in the GRIB bar is shown in the navigation pane as a crosshair along the route.
  • Toggle buttons are available in the GRIB bar to quickly switch between the different available parameters and to switch between meteo data along route or cursor position only.
  • A relevant GRIB file can also be used when replaying previous recorded data.

3.Multiple Route Converter tool

Saving of routes in a different format is already available in Qastor using single files. The Multiple Route Converter is a tool for converting multiple route files between different route formats. Qastor also contains a utility under the 'Route - Save selected' to save a selected route to a different format. However, this utility can only save one route at a time. Therefore, the Multiple Route Converter is convenient for those converting many routes at the same time.

4.Enhanced prediction filter

The simple prediction method already available in Qastor is based on COG (Course Over Ground) and ROT (Rate Of Turn) and assuming the COG changes with the ROT (circular movement). This method is less practicable in situations like a vessel dead in the water but being pushed along by a current.
  • The enhanced prediction method now available in Qastor is based on rate of change of COG (ΔCOG) at lower speeds instead of only ROT for future positions.
  • ROT of turn is applied to the heading and also acceleration will be used in this type of prediction.
  • Large acceleration changes are filtered to stabilize this type of prediction (like tugs giving a momentary push to a vessel).
  • This enhanced prediction method is based upon a study by the University of Lisbon “Mathematical models for ship path prediction in maneuvering simulation systems”. 



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