Re: better image scaling?
Re: better image scaling?
- Subject: Re: better image scaling?
- From: John Nestor <email@hidden>
- Date: Wed, 19 May 2004 16:26:28 -0400
I'm late to this thread but it seems to me that, having seen several
similar threads, what folks desire is to frame and scale an image
or curve with a nice crisp 1 pixel line while at the same time drawing
either curves within this frame that are nominally one pixel in width
but are antialiased
or an image that does not change proportions with window or view
scaling.
For example, in Building Cocoa Applications by Garfinkle and Mahoney
the example application "Graph Paper" draws a curve in a scaled window
.
It fails to work as above as when you scale the window by e.g. 2x
vertical and 5x horizontal the curve that is drawn looks like it was
drawn
with a 2 by 5 horizontal calligraphic pen. This can be worked around by
changing the code in drawRect that draws the line segments making
up the curve. Coordinate lines, view frames, marker crosses, image
proportions, etc can all be adjusted in drawRect to give a 1x1 (or
whatever is desired) pixel width
or a non-distorted image.
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