Hej Gert,
Listen kan gøres meget længere. Prøv f.eks. at skrive "navigations
program" i Google. Det giver rigtig mange links.
Hertil findes der tillige beskrivelser:
http://www.oceannavigator.com/ME2/dirmod.asp?sid=&nm=&type=Publishing&mod=Publications::Article&mid=8F3A7027421841978F18BE895F87F791&tier=4&id=271FAF4F74644B2AAA43A6CA1DC0299B
Den bedste sammenligning får du nok ved at downloade programmernes
manual.
Dt er bedre end at lave en kort beskrivelse frem for noget som
ovennævnte link giver af beskrivelse af de nævnte programmer.
Desuden skal man også se lidt til om det er vektor eller rasterkort
der kan anvendes eller måske begge typer.
Her er lidt som jeg har sakset:
What's the difference between VECTOR and RASTER electronic charting?
There are two very different technologies used in electronic charting,
and they are not interchangeable. Most chart plotters (like those from
Magellan, Garmin, some Northstar models, and others) use vector
charts, which bear little resemblance to regular paper charts, but
have some real advantages.
In essence, VECTOR charts are a rendering of a lithographic chart in a
point-by-point format. They allow you to zoom in to large
magnifications without distortion. As a rule, the hardware that uses
this technology is all-in-one units (aqua. chartplotters) that include
a screen, a GPS, and a programmable interface. All you add are the
chart cartridges. Vector chart plotters generally cost between $500
and $2,000+. Vector chart cartridges (of which Navionics and C-MAP NT
cartridges are examples) cost more, some time substantially more, than
similar coverage on raster chart CDs.
The alternative RASTER charts, are digital scans of printed
lithographic charts. They are produced by companies like Maptech and
NDI, and they look identical to paper charts, because they are
pictures of them! They cannot be zoomed in to very high magnifications
without losing sharpness. They also require the considerable computing
power of a laptop or onboard computer to display the charts and drive
the navigation software. All in all, raster charting systems require
is a larger investment in technology than vector charting systems.
However (and it's a big however), having a computer onboard opens a
floodgate of opportunities, such as e-mail and fax communications,
weather data, and more -- not to mention word processing, games,
internet, and all the rest that goes with a computer.
Især den sidste linie synes jeg beskriver anvendelse af en PC ombord,
rigtigt godt.
De avancerede programmer giver virkelig mange muligheder for
navigation i alle aspekter; men begrænsningerne ligger meget i
kortmaterialet.
Det mest simple DLS har ikke alle de features som navprogrammerne
tilbyder, til gengæld har programmerne under DLS de absolut bedste
kort.
Desværre kan disse kort der ligger i .it formatet ikke anvendes i de
andre programmer.
Mvh/Harding
On 15 Sep., 14:31, blueocean <gert.kj...@gmail.com> wrote:
> Hej
> Jeg er ved at undersøge hvilke Navigations programmer til PC og
> tilhørende kort, der bliver brugt mest.
>
> 1.Det levande sjökortet
> 2.Fugawi Marine
> 3.Maptech
> 4.MAX Pro
> 5.MaxSea
> 6.Navmaster
> 7.NavSim
> 8.Nobeltec
> 9.NorthNav
> 10.Ozi Explorer
> 11.PC Plotter
> 12.RayTech RNS
> 13.SeaClear
> 14.SeaPro
> 15.Transas Navigator
> 16.TIKI Navigator
> 17.Tridentnav
> 18. Expidition
> Andre ?
>
> Er der nogler af jer der bruger disse og kan komme med anbefaling
> hvilke der er bedst at bruge og mest nøjagtigest.
>
> Jeg hælder til Maxsea easy versionen men har ikke noget at have det i.
>
> Hvad er jeres mening.
>
> \Gert
> Sy-Grog
http://blog.mailasail.com/grog