On Aug 5, 2010, at 3:07 PM, Quincey Morris wrote:
> On Aug 5, 2010, at 11:23, Brian Postow wrote:
>
>> the representations size is also in points.
>
> Well, to clarify, do you really mean "size"? I would assume that
> imageRep.size.width == image.size.width (both are in points), but
> imageRep.pixelsWide would be different, if the resolution is not 72 dpi. Did
> you actually check pixelsWide/pixelsHigh?
>
yes: I have the following code:
PDFPage* pdfPage = [[PDFPage alloc] initWithImage: img];
DEBUGSTR(@"I have %d pages", [doc pageCount]);
[doc insertPage:pdfPage atIndex: maxPage ];
NSData* imgData = [pdfPage dataRepresentation];
NSImage* img2 = [[NSImage alloc] initWithData:imgData ];
and in the debugger I get:
(gdb) p (int)[[[img2 representations] objectAtIndex: 0] pixelsHigh]
$1 = 611
(gdb) p (int)[[[img representations] objectAtIndex: 0] pixelsHigh]
$2 = 1696
> Incidentally, if your scenario is intentionally working with only a single
> image representation, then it's probably better (and, I'd say, with 10.6
> definitely better) to avoid NSImage completely and stick with just NSImageRep
> throughout the scenario. I don't think there are any API reasons left to
> prefer NSImage, when multiple representations are not at issue, but others
> may have a more informed opinion on that subject than I do.
>
I'm targeting 10.5... I'm not sure if that matters much, but yeah... I'm also
using IKImageView, and so I'm ACTUALLY targeting CGImageRef, but NSImage seems
the easiest way of getting there...
>
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Brian Postow
Senior Software Engineer
Acordex Imaging Systems
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