handling of huge bitmaps, incremental saving?
handling of huge bitmaps, incremental saving?
- Subject: handling of huge bitmaps, incremental saving?
- From: Sven Hoffmann <email@hidden>
- Date: Tue, 30 Dec 2003 01:42:38 +0200
good morning everyone,
Anyone out there with experience regarding creation of huge bitmaps and
saving these to tiff-files?
I am working on a little app for a graphic artist, which will result
in the
creation of bitmap data in the range of a gigabyte.
A few milion paths are drawn and they shall be saved as a tiff file for
printing.
the drawing goes fine, but so far i always draw into views, scaling
everything
to fit there.
Now i wonder what will happen when i try to draw to a NSBitmapImageRep
with data worth a gigabyte, then create another gigabyte for a
tiff-representation
from the first representation and then save the whole thing to disk.
A huge swapping orgy is to arise from that, no?
Is there maybe a way to to a bit of drawing, lets say a rect containing
an
eigth of the bitmap, save that to disk, do the next bit of drawing,
save and so on, with the result of a complete image file.
Is this just a dream of mine or is there a way to do something like
this?
Or maybe some other tricks to deal with huge bitmaps?
I thought i ask for some hints before trying to reinvent the wheel...
cheers, sven
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