On 27/04/2009, at 12:16 , Naresh Kongara wrote:
in the view drawing code i didn't changed any thing.
After preparing the view from which i need to get the images, i just
replaced the line
NSImage *img = [[[NSImage alloc] initWithData:[view
dataWithPDFInsideRect:sourceRect]] autorelease];
with
NSImage *img = [view imageFromRect:sourceRect];
The view drawing is same for both the cases,
but -(NSImage *)imageFromRect:(NSRect) is giving me a some what
blurred image...
My guess (and its only a guess because you haven't posted the drawing
code) is that the image is being drawn at a different size to the
original, and hence scaling.
cacheDisplayInRect will return a bit map image which will be blurry if
scaled.
dataWithPDFInsideRect will (potentially at least) return a PDF image
which will scale better.
Check your drawing code and ensure it is drawing the image at exactly
the same size as the original view bounds.
You can also try writing both images to a pdf and tiff and seeing the
differences.
Enjoy,
Peter.
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