[OZAPRS] Hi Res map of Australia for UI-View

Ray Wells vk2tv at exemail.com.au
Fri Apr 10 17:42:17 EST 2009


Geoff,
If you can give me an address I'll ftp them to you overnight so speed 
won't be an issue.

Ray vk2tv

Geoff wrote:
> Hi Ray,
>
> Yep we can host them on he website.
> It'll be good to start building up a decent map repository :-)
>
> Geoff
>
>   
>> -----Original Message-----
>> From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
>> Behalf Of Ray Wells
>> Sent: Friday, 10 April 2009 8:39 AM
>> To: Australian APRS Users
>> Subject: Re: [OZAPRS] Hi Res map of Australia for UI-View
>>
>> Colin,
>>
>> Geoscience Australia (www.ga.gov.au) have their entire 1:250000 series
>> topographic maps available online at no cost. They are high resolution,
>> digital versions of their paper series maps.
>>
>> You do have to register with GA to be able to download the maps, and
>> each time you get maps you need to tick a few boxes regarding your use
>> of the maps. They are in ecw format, which Irfanview can convert to jpg.
>> The size of each map varies from about 3MB up to about 8MB, depending on
>> the area covered by a particular map. When converted to jpg the maps
>> increase up to around 20MB each. I've split all of mine in Photoshop
>> into (mostly) 0.5° x 0.5° segments for faster loading. Mmm, just
>> thinking back to UIView and how it handles maps, and even the split maps
>> may display too small to be useful. I use xastir now and it enables
>> zooming in on a map which produces excellent topographic detail that's
>> even hard to see on paper maps.
>>
>> The other "inconvenience" is you need to know map names to be able to
>> "find" them.
>>
>> I have the east coast from Brisbane to Melbourne, and out to about
>> Canberra. That requires 22 maps, which have become 138 map segments
>> (most maps become 6 segments but some special, or extended maps require
>> 9. Sydney and Bairnsdale are examples). In jpg format thats 500MB of maps.
>>
>> Colin, If you want I'll send you a segment for where you live, with its
>> inf file, and you can see how it looks. If the list will accept a 3MB
>> file I'll post that information here for general assessment.
>>
>> If Geoff wants to host what I have on Ozaprs, or elsewhere, I'll send
>> him a disc with the segmented maps and both inf and geo files. I'd host
>> them here for ftp download but my outgoing is only 128kbs (for now). I
>> can still host them but he upload would be slow (insert the correct
>> number of o's in sloooow).
>>
>> Ray vk2tv
>>
>> Colin Matten wrote:
>>     
>>> I'm after a hi res map covering Australia for use with UI-View. All of
>>> the maps I have (both paper and electronic) aren't suitable for use with
>>> UI-View. UI-View requires a map with no projection (parallel and linear
>>> lat/long).
>>>
>>>
>>> I've had a look at the maps on www.aprs.net.au, these don't have a lot
>>> of details on them.
>>>
>>>
>>> Maps can be emailed to vk2kcm at gmail.com
>>>
>>>
>>> Regards
>>>
>>> Colin
>>>
>>> VK2KCM
>>> _______________________________________________
>>> Ozaprs mailing list
>>> Ozaprs at aprs.net.au
>>> http://aprs.net.au/mailman/listinfo/ozaprs
>>>
>>>
>>>       
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>
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>   

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