まーるさんかくしかーくー♪ ってことで、今回は図形を描写します。 まずこれ。簡単な四角形から。 -(void)drawInContext:(CGContextRef)context { CGContextSetRGBStrokeColor(context, 1.0, 0, 0, 1.0); CGContextStrokeRect(context, CGRectMake(20.0, 20.0, 100.0, 200.0)); } CGContextStrokeRect(context, CGRect);で枠だけの四角を描く。 次にこれ -(void)drawInContext:(CGContextRef)context { CGContextSetRGBStrokeColor(context, 1.0, 0, 0, 1.0); CGRect rect = CGRectMake(20.0, 2
![Core Graphicsで図形を描く](https://cdn-ak-scissors.b.st-hatena.com/image/square/455b17bc44ee0c187efccabb2d5966adf9cb430a/height=288;version=1;width=512/http%3A%2F%2F4.bp.blogspot.com%2F-1sQ6vU20LPs%2FTd6kZmApPWI%2FAAAAAAAAEnM%2FF0qML8n7gqU%2Fw1200-h630-p-k-no-nu%2F%2525E3%252582%2525B9%2525E3%252582%2525AF%2525E3%252583%2525AA%2525E3%252583%2525BC%2525E3%252583%2525B3%2525E3%252582%2525B7%2525E3%252583%2525A7%2525E3%252583%252583%2525E3%252583%252588%2525EF%2525BC%2525882011-05-27%252B1.05.18%2525EF%2525BC%252589.png)