[OSM-talk] JOSM and scale

[Andy Robinson (blackadder)]

Frederik Ramm wrote:
>Sent: 25 March 2008 3:47 PM
>To: Lars Aronsson
>Cc: talk at openstreetmap.org
>Subject: Re: [OSM-talk] JOSM and scale
>
>Hi,
>
>> I've never cared too much about that scale, but now I know that
>> these apartment buildings along Syrengatan are 11 x 32 metres and
>> not 22 x 64 metres as JOSM would lead you to believe,
>> http://www.openstreetmap.org/?
>> lat=58.407&lon=15.600&zoom=17&layers=0BFT
>
>I'll look into that.

Vector editing software such as CAD packages are normally scale free at the
editing level. The co-ordinates are simply sufficient, especially if you
have the ability to draw a vector a specific distance from a point as a
polar ray or snapped relative to something else. Its only at plot time do
you decide what scale you wish to make your view. Perhaps if JOSM worked the
same way there would really be no need for a scale bar, especially when the
scale bar needs to read differently for vertical and horizontal projection
distances.

Cheers

Andy

>
>> "Micromapping" is fun.  I want zoom=18 now.  Hmmm... and higher
>> GPS accuracy.
>
>The Mapnik layer has zoom 18 I believe!
>
>Bye
>Frederik
>
>--
>Frederik Ramm  ##  eMail frederik at remote.org  ##  N49°00'09" E008°23'33"
>
>
>
>
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