[Qgis-user] scaling bug?

Werner Macho werner.macho at gmail.com
Wed Oct 22 03:38:05 PDT 2008


Hi again!
Ok I must miss something somewhere..
I open QGIS .. Set the project projection to M34.
Load the shape file as a vector layer - set the Layer projection to M34 
(missed that before) .. but .. the same happens
Project has +proj=tmerc +lat_0=0 +lon_0=16.33333333333333 +k=1 
+x_0=750000 +y_0=0 +ellps=bessel 
+towgs84=577.326,90.129,463.919,5.137,1.474,5.297,2.4232 +units=m +no_defs
Layer CRS is +proj=tmerc +lat_0=0 +lon_0=16.33333333333333 +k=1 
+x_0=750000 +y_0=0 +ellps=bessel 
+towgs84=577.326,90.129,463.919,5.137,1.474,5.297,2.4232 +units=m +no_defs

Beat me but where can i find the "coordinate transformation turned on?" 
switch?

And believe it or not .. I switched Setting -> Project Properties -> Map 
Units from "decimal degrees" to "Meters" and now the scale stays 
correctly at 1:90000 while moving ..
And I tried it with a new started QGIS also dont changing any projection 
or Layer-CRS (assuming that everything is in WGS84) and it seems that 
this is the only switch causing the scale displaying strange values.
So can someone give me an explanation why it is changing so rapidly in 
"decimal degrees" while staying at the correct value in "Meters"
And why is decimal degrees the default value? For me it seems more 
reasonable to make Feet or Meters default..

Sorry for bothering you with a maybe silly question but I cant follow 
this behaviour right now.

regards
Werner

> Not for me, I get the scale 1:91916
>
> What CRS does the layer have in your setup?
> Do you have coordinate transformation turned on?
> What CRS does the project have?
>
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