• Open Menu Close Menu
  • Apple
  • Shopping Bag
  • Apple
  • Mac
  • iPad
  • iPhone
  • Watch
  • TV
  • Music
  • Support
  • Search apple.com
  • Shopping Bag

Lists

Open Menu Close Menu
  • Terms and Conditions
  • Lists hosted on this site
  • Email the Postmaster
  • Tips for posting to public mailing lists
handling of huge bitmaps, incremental saving?
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

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
_______________________________________________
cocoa-dev mailing list | email@hidden
Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/cocoa-dev
Do not post admin requests to the list. They will be ignored.

  • Follow-Ups:
    • Re: handling of huge bitmaps, incremental saving?
      • From: Nicko van Someren <email@hidden>
  • Prev by Date: Re: File sizes when NSImage's are included
  • Next by Date: WebServices Question
  • Previous by thread: Re: [ANN] Updated source code: Colored Checkboxes, Source List
  • Next by thread: Re: handling of huge bitmaps, incremental saving?
  • Index(es):
    • Date
    • Thread