Re: Cross Section libraries [scale]

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From: Janeen Samuel (ken-grimes_at_h140.aone.net.au)
Date: Tue Jan 30 2001 - 02:57:48 CET 

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Date: Tue, 30 Jan 2001 12:57:48 +1100
To: cavexml_at_cartography.ch
From: Janeen Samuel <ken-grimes_at_h140.aone.net.au>
Subject: Re: Cross Section libraries [scale]
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At 22:15 26-01-01 -0700, you wrote:
>
>
>Ken Grimes wrote:
>
>> I suggest that the XML data should stick to a simple LRUD set (for use in > small-scale renderings),
>
>I believe mapping terminology is that "large-scale" is something like
>1:125000, i.e. a large number; something that covers a large area.
>
>I believe you meant small scale.
>

No, scale is a ratio;
so
1:100,000 = 1/100,000 = 0.00001 i.e. small scale
1:1 = 1 = large scale.

Its a common trap for beginner geographers!

For cave maps I tend to think of 'small scale' as any scale that is too small to show any detail beyond the walls. Just where the cut-off is depends a bit on the size of your passages & rooms!

---------------------------------------------------------------
Ken Grimes Phone +61 +3 5573 4503
Regolith Mapping, PO Box 362, Hamilton, Vic 3300, Australia
Cainozoic Geology, Geomorphology, Karst & Speleology.
---------------------------------------------------------------

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