Re: NSImageView setImageScaling:NSScaleToFit blurs image

FROM : Mike Abdullah
DATE : Tue Mar 04 20:52:04 2008

When you draw the image, have you tried doing [[NSGraphicsContext 
currentContext] setImageInterpolation: NSImageInterpolationNone] ?

Mike.

On 4 Mar 2008, at 19:13, R.L. Grigg wrote:

> I have a series of tiny (32x32) PGM image astronomical IR data in 
> memory that I display on screen zoomed up to 640x640. Right now Im 
> using a NSImageView and setImageScaling:NSScaleToFit. This works but 
> some sort of gaussian blur gets applied to the image ruining the 
> analysis.
>
> Is there a setting to turn off this default blur or is there another 
> way I can zoom display a small image (QCView?) but without the blur? 
> The net effect of what we need is a sharp pixellated image not one 
> where the pixellated block edges are smeared.
>
> OSX 10.5.2, Xcode 3.0, ObjC 2.0
>
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