[Qgis-user] How to zoom smooth or stepless?

[Andreas Neumann]

Hi Thomas,

As mentioned by others there is an option where you can set the zoom
factor to be used when zooming in with the mouse. Options -> Map Tools
-> Panning and Zooming -> Zoom factor.

Note that every time you change the mouse wheel, QGIS is rendering. When
turning the wheel several times it is rendering several times and there
is no way to stop QGIS from rendering.

This is improved in QGIS master where threaded rendering is introduced
at least for vector data. Still pending for raster data. With the
threaded rendering you can interrupt the rendering and don't have to
wait until the rendering finishes.

As others have pointed out, QGIS 1.8 is very old and you should upgrade
to QGIS 2.2. There are several improvements in the more recent versions
and there won't be any fixes for the old version.

Andreas

Am 21.05.2014 15:10, schrieb Thomas Schweser:
> Hi.
> 
> I'll keep it short:
> OS: Win7, 64bit
> QGIS-Version: 1.8.0-Lisboa (german)
> I am using a self-generated CRS based on ETRS89/ Zone32 (EPSG:25832): +proj=tmerc +lat_0=0 +lon_0=15 +k=0.9996 +x_0=3500000 +y_0=0 +ellps=GRS80 +towgs84=0,0,0,0,0,0,0 +units=m +no_defs
> 
> Each time I try to zoom into this map (using WMS, URL: http://isk.geobasis-bb.de/ows/dtk10.php) (or any other map/ layer) its only possible for discrete steps:
> Scale -> 1:72224 - 1:36112 - 1:18056 and so on.
> What did I miss to configure or to set? Or is it "normal"?
> 
> Thanks for any help
> Thomas
> 
> 
> 
> 
> 
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