Hi Lawrie
after making maps with the Royal Australin Survey Corps for more
than 20 years I am watching this with interest. The Standard 1:100 000 map
is 30 minutes of Latitude by 30 minutes of Longitude. The edges of the map
are not square and straight because it is projected onto a flat surface with
a 1 000 metre grid. The accuracy is very good but land marks are symbolised
being much bigger than if they were scaled in. They may be moved on a
priority system so that all the symbols fit. A building symbol may actually
be more than one building etc etc. I have my doubts that Australia is
covered with 1:100 000 maps. In the open spaces the maps may be 1: 250 000
and in tight areas they may be 1: 25 000. There is other mapping at
different scales for different uses, and a lot of mapping has been
digitised, where special maps can be produced for special purposes like a
bird atlas. I will leave you with it.
cheers
Chris Dahlberg
Due to technicalogical advancements and dedication one of the smallest
Australian Army Corps(RASVY) worked itself out of a job and was disbanded
last year after 81 years.
>In my last post I said "...... 100 x 100 ha ....". Of couse I meant 100
>x 100 metres (ie. a hectare).
>
>Cheers, Lawrie
>
>
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