S57 format is the standard
chosen for official ENC charts. ENCs are distributed according
S63 scheme which is an encrypted encapsulation of S57.
is an International organization that centralizes Official ENCs from
the Hydrographic Offices of countries member of the IHO. Charts are
directly issued from the HO of concerned countries with updates
delivered weekly. For more general information, you can consult this article from the SHOM , other SHOM
documents at http://www.shom.fr/fr_page/fr_act_cartographie/index_act_carteelectro.htm
or on the IHO web site at http://www.iho.int
ScanNav supports Official ENCs in their S57 and S63
formats, and is referenced as a Primar
S57 Display settings
You can personalize the display of vector ENCs using the "ENCs S57" tab of ScanNav's preferences. You may save personal settings under different named configurations using the "Save settings" button, and switch easily between these configurations or restore the factory defaults using the "Load settings" button.
Starting from version 14.1, it is possible to choose Soundings and Heights units
in ENCs between Meters (default), Feet, or Fathom. This option not only
impacts the charts display, but also all fields related to deths and
heighs in the ENC settings, and also "dynamic sounds" units (see
below). It has nevertheless
no impact on the S57 charts information window which always displays
raw information as coded in the ENCs, so always in Meters.
- "Dangerous sounds": Lets you highlight sounds under a given value, to put them in evidence using specific text display. Important warning: Dangerous sounds will evolve according to the depth correction entered (see below)
- "Depth areas": Lets you customize colors for different depth areas. A tip is to enter in the first cell the minimum security depth with a specific color. All depths areas containing sounds above this value will therefore be be put in evidence, highlighted with the given color. Important warning: Depth areas will evolve according to the depth correction entered (see below)
- "Activate sounds delta": This option activates the depth correction control in the menu bar to enable the dynamic sounds feature according to a water level at a given time.
this feature modifies sounding values displayed on the chart.
process is to enter the water level of the current tide. For
example, if you enter a value of 3m, a sound of "1" meter will be
displayed "4" meters, and will therefore not correspond to
the hydrografic zero anymore.
- By unchecking the option, the input field will switch to gray, and soundings will be back to their standard values.
WARNING: This feature only concerns ENC/S57 charts. Soundings displayed on other types of charts (Navionics, rasters,...) are not affected. You must therefore be very careful when using different types of charts altogether. The "Activate sounds delta" control will only show up if some ENCs are present in you charts library.
ENCs are designed with a vector technology, bringing additional information for each object inside the chart (lights, buoys, sounds, etc...) . All objects can be queried for additional information with the following specific S57 information window. To open it, use the icon, or menu "Option" -> "S57 info". (refer to the general documentation to configure custom toolbars in case is not present)
Installation of ENCs and insertion in ScanNav's Charts library:
Vector ENCs are managed in the same way as Raster charts (BSB, etc...) through the Charts Library. The library may contain a mix of Vector and Raster charts.To insert a full pack of encrypted ENCs, you just have to insert the "enc.pmt" file from the ENC_ROOT directory, which will add all present ENCs in one step.
To insert non encrypted S57 files (such as free US S57 chart available at http://chartmaker.ncd.noaa.gov/mcd/enc/download.htm), the process is similar, just use file "CATALOG.031" instead of "enc.pmt".
New: For version 11.5 and above, please refer to the installation guide in pdf format for a full description of the installation process.
For older versions, please refer to the S63Insall documentation (accessible from the Windows "start" menu, then in ScanNav folder)
New: starting from version 11.5, installation of Navionics charts is fully integrated into ScanNav. Please refer to the Installation guide in pdf for full instructions.
Navionics charts are supported in ScanNav from version 8.0 and above.
Display settings are available using menu "File" ==> "Navionics preferences".
You can show/hide different types of objects by checking/un-checking the corresponding options, and also change the general look of the charts.
"Colours Used": Lets you choose the general look of navionics charts. the "Easy View" modes will display with larger characters and objects, "BA" or "USA" will act on the colors according to European (BA), or American (USA) standards.
"Depth fill mode": Lets you define a custom Safety Depth sound value (in meters) from which the colour will change. If "Only 2 colours" is checked, this area will be the same color than the default area (depending on the chart scale).
"Aerial Photo Options" let you
define how aerial images
will be displayed (only on Platinum and Platinum+ charts), either none,
full, or limited to ground area plus safety depth defined above. You
may also display them opaque or with some transparency to see
Installation of Navionics charts and insertion in ScanNav's Charts library:
New: starting from version 11.5, installation
of Navionics charts is fully integrated into ScanNav, and they
be read from a standard SD/CF card reader. Please refer to the separate
Installation guide in pdf
for full instructions.
Transferring Waypoints, Routes, and Tracks:
You may use the CF/SD card to transfer Waypoints, Routes, and Tracks between ScanNav and different Navionics compatible plotters. The procedure differs according to the plotter brands, please refer to the plotter's documentation for instructions regarding the manipulations on the plotter itself.
Geonav plotters and GPS:
Geonav's file format is directly supported in ScanNav. Use menu entries "Geonav Import" and "Geonav Export" from the main window "File" menu, or from the "Objects library" window for a more selective transfer.
Files should be copied in the DATA folder on the SD card, in the following sub-folders:
For other types of plotters, you should use ScanNav's possibility to Import/Export objects in the GPX standard format, together with third party freeware or shareware specialized in file format conversions, such as GPSBabel http://www.gpsbabel.org/ or GPSUtility http://www.gpsu.co.uk/ who can manage a lot of different formats.
In ScanNav, use entries "GPX Import" and "GPX Export" from the main window "File" menu, or from the "Objects library" window for a more selective transfer.
Displaying Water Levels (Navionics data):Water levels predictions integrated in the Navionics charts can be displayed in ScanNav as curves, in a similar way to the Shom data using SNTides. Right click on the chart with the mouse right button, and choose "Water Heights" then "Navionics source", which will display the water heights for the nearest station.