剪贴图片

 

-(void)cutOutImage:(UIImage *)cutedImage{

//设置要保存图片的大小

CGSize subImageSize=cutLocation.textureRect.size;

//初始化一个矩形

 

CGRect subImageRect=CGRectMake(KcutStartX, KcutStartY, KcutWidth, KcutHeight);

CGImageRef imageRef=cutedImage.CGImage;

CGImageRef subImageRef=CGImageCreateWithImageInRect(imageRef, subImageRect);

UIGraphicsBeginImageContext(subImageSize);

CGContextRef context=UIGraphicsGetCurrentContext();

CGContextDrawImage(context, subImageRect, subImageRef);

UIImage *subImage=[UIImage imageWithCGImage:subImageRef];

UIGraphicsEndImageContext();

[centerBg removeChild:selectedImage cleanup:YES];

[selectedImage release];

selectedImage=[[CCSprite alloc] initWithCGImage:subImage.CGImage];

selectedImage.position=ccp(160,240);

[centerBg addChild:selectedImage];

 

}