Re: [Math] sin(), cos() not working? What special magic must I use to summon their powers?
Re: [Math] sin(), cos() not working? What special magic must I use to summon their powers?
- Subject: Re: [Math] sin(), cos() not working? What special magic must I use to summon their powers?
- From: David Duncan <email@hidden>
- Date: Wed, 1 Oct 2008 09:29:50 -0700
On Oct 1, 2008, at 5:46 AM, Michael Robinson wrote:
Unsurprisingly, I need my hand held again.
1. how do I initialize a CGShading object, with my two colours (left
right/top bottom)
See the Quartz 2D Shadings sample at <http://developer.apple.com/samplecode/Quartz2DShadings/index.html
>
The sample code runs on 10.5, but the shadings code should work on
10.4 as well (the sample only runs on 10.5 because it also uses the
CGGradientRef APIs).
2. how do I fill my NSBitmapImageRep with this pretty gradient?
Create an NSGraphicsContext with the image rep, then get the CGContext
from the NSGraphicsContext. The latter is shown in the sample above,
although the former is not.
--
David Duncan
Apple DTS Animation and Printing
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