Quartz 2D is the primary two-dimensional graphics rendering API for Mac OS X, part of the Core Graphics framework.
atan2(y, x) has that discontinuity at 180° where it switches to -180°..0° going clockwise. How do I map the range …
math quartz-2d atan2I want to draw text use Quartz 2D. The "menu" direction is wrong. I want "Menu" still readable and have 45 …
ios cocoa-touch core-graphics quartz-2dI wonder if someone can distinguish precisely between these? For my understanding, Core Graphics is just a "Framework Package" which …
iphone core-graphics quartz-graphics quartz-2dFor an application I am building I have drawn 2 circles. One a bit bigger than the other. I want to …
iphone cocoa-touch math quartz-graphics quartz-2dI need to draw line with arrow on its end in my Draw app. I'm not good in trigonometry, so …
objective-c ios core-graphics quartz-2dAnyone have any idea why CGContextFillPath won't work in the code snippet below? I'm using the following code to draw …
iphone quartz-2d cgcontextMac OS X 10.7.4 I am drawing into an offscreen graphics context created via +[NSGraphicsContext graphicsContextWithBitmapImageRep:]. When I draw into this …
objective-c macos cocoa core-graphics quartz-2dI wrote the following code in ViewDidLoad // Implement viewDidLoad to do additional setup after loading the view, typically from a …
ios cocoa-touch cgcontext quartz-2d