Subclassing NSDocumentController
Subclassing NSDocumentController
- Subject: Subclassing NSDocumentController
- From: Lance Pysher <email@hidden>
- Date: Thu, 24 Jan 2002 20:47:36 -0700
I'm writing a program to view DICOM medical images, and although I have
a functional viewer I'm having two problems. When viewing a CT or MRI
each individual images is in a separate file and there is between 20-200
images in a standard study. Is there a way to subcass NSDocumentViewer
to load an entire directory or all selected files into a single document?
Also these images are 16bit grayscale, and the entire bit depth needs to
be maintained because depending on how the 16-8 bit conversion is done
you can visualize Brain, bone, Liver etc Often you adjust the windowing
several times while reviewing the study. Right now I'm caching the
converted images, but it is a memory hog and propagating the updated
settings to each image slows things down momentarily, especially with
larger image sets where there is a lot of swapping from the hard drive.
Is there a way to do a rapid 16-8 conversion so I can create each image
only as it is needed and still rapidly scroll through the image set?
Lance