Not assuming 1 point = 1 pixel
Not assuming 1 point = 1 pixel
- Subject: Not assuming 1 point = 1 pixel
- From: Ken Tabb <email@hidden>
- Date: Thu, 8 Jul 2004 15:21:04 +0100
Hi folks,
does anyone have any general advice for Cocoa (/ Quartz 2D) drawing
algorithms that don't assume 1 point = 1 pixel? I'd love to break that
assumption, but still want the outlines of my drawn objects crispy
clean.
At the moment you can draw a line with a 0.5 pixel offset to get it
drawn direct on one pixel, and therefore nice thin line, vs. drawing on
integer coords and getting smudged lines (where the line is 1/2 on one
pixel and half on another). I'm happy breaking that 0.5 offset trick,
if it means there's another way that I can guarantee crispy clean
lines. Or maybe I'm missing something really obvious and have been
using a hack all this while 8^)
Any clues would be most welcome!
Cheers in advance,
Ken
- - - - - - - - - -
Dr. Ken Tabb
Mac & UNIX Technical bloke (C, C++, Obj-C, Java) - Health & Human
Sciences
Machine Vision & Neural Network researcher bloke - Computer Science Dept
University of Hertfordshire, UK
http://www.health.herts.ac.uk/ken/
Certified non-Microsoft Solution Provider
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