Re: Basic beginner questions about mapping

From: jeff feehan (jfeehan_at_ix.netcom.com)
Date: 06/04/04 

Date: Fri, 04 Jun 2004 21:01:49 GMT

sorry to answer my own post, but as soon as i thought about it, i realized
that the road navigation programs for PDA must be vector based.

but, are there any programs for PDA's that allow marine navigation on vector
charts?

as i said i want to use a bluetooth gpsr, and a windows pda.

jeff

jeff feehan wrote:

>
>
> H.W. Stockman wrote:
>
>>
>> PDA GPS solutions allow you to see your GPS route overlain on real
>> bit-mapped topo maps (here in the US, on scanned USGS topos). But
>> PDAs are
>> fragile, and typically have short battery lives if displaying on a fancy
>> screen, and require a lot of memory to store the bitmaps (at least a
>> 128MB
>> card to store any substantial number of topos).
>>
>> Bitmapped topos take up too much memory for current hand-held, durable
>> GPSs.
>>
>
> and because of this, one might expect that vector-based navigation would
> dominate on PDA's. but, it seems that the opposite is true.
>
> i want to do marine navigation on a windows pda with vector charts, and it
> seems that the only solution is the garmin cf que. i really want to use a
> bluetooth GPSR, but as far as i know, it is not possible to navigate on
> vector
> charts with any available bluetooth receivers.
>
> i have never looked into the road navigation capabilities of PDA's - are
> they generally based on bit-mapped cartography?
>
> i was really hoping that the fugawi ENC software would work, but it
> turns out
> that you have to "rasterize" the vector ENC data before you transfer the
> maps
> to your PDA. this seems crazy, but i guess there is a good reason.
>
> any suggestions?
>
> jeff
>
>
>
>
>

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