[Qgis-user] QGIS Master and Rasters to grayscale

[Marco Hugentobler]

Hi James

You may go to the raster properties, select render type singleband gray. 
Then select contrast enhancement 'stretch to min/max' and click on 
'load' to get the min/max values from the datasource.

Having this by default (options page) is not yet available with the new 
raster classes. A bugticket is already filled.

Regards,
Marco

Am 19.06.2012 10:17, schrieb James Stott:
>
> I sometimes display my Ordnance Survey rasters  as single band gray to 
> allow my data to show more clearly over the top of it.
>
> In the new master I cannot achieve the same effect. My raster goes 
> solid grey.
>
> Old settings:
>
> Render as: Single Band gray
>
> Single band properties -- gray band: Band 1
>
> Single band properties -- color map: grayscale
>
> New settings:
>
> Render type: Singleband gray
>
> Gray band: Palette
>
> Contrast enhancement: No enhancement
>
> How do I achieve the same effect as before? The raster displays fine 
> in colour, just not in grayscale. I am guessing it's down to the new 
> raster properties in master.
>
> *James Stott* BSc (Hons) MSc | Senior Professional
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-- 
Dr. Marco Hugentobler
Sourcepole -  Linux&  Open Source Solutions
Weberstrasse 5, CH-8004 Zürich, Switzerland
marco.hugentobler at sourcepole.ch http://www.sourcepole.ch
Technical Advisor QGIS Project Steering Committee

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