StackOverflow2013

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plurals

PO
primarykey
Id
10768081
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-05-26T16:43:17.057
FavoriteCount
0
LastActivityDate
2012-05-26T16:43:17.057
LastEditDate
LastEditorUserId
0
OwnerUserId
751641
ParentId
1260249
PostTypeId
2
Score
1
ViewCount
0
LastEditorDisplayName
text
Body
<p>If you want to make a square image from a rectangle image (no matter horizontal or vertical) by cropping it by width or height in both sides, use my code. The difference is that I don't stretch, but I crop. I made it from the top code by modification: </p> <pre><code>//Cropping _image to fit it to the square by height or width CGFloat a = _image.size.height; CGFloat b = _image.size.width; CGRect cropRect; if (!(a==b)) { if (a<b) { cropRect = CGRectMake((b-a)/2.0, 0, a, a); b = a; } else if (b<a) { cropRect = CGRectMake(0, (a-b)/2.0, b, b); a = b; } CGImageRef imageRef = CGImageCreateWithImageInRect([_image CGImage], cropRect); UIImage* sourceImage = _image; CGBitmapInfo bitmapInfo = CGImageGetBitmapInfo(imageRef); CGColorSpaceRef colorSpaceInfo = CGImageGetColorSpace(imageRef); CGContextRef bitmap; if (sourceImage.imageOrientation == UIImageOrientationUp || sourceImage.imageOrientation == UIImageOrientationDown) { bitmap = CGBitmapContextCreate(NULL, a, a, CGImageGetBitsPerComponent(imageRef), CGImageGetBytesPerRow(imageRef), colorSpaceInfo, bitmapInfo); } else { bitmap = CGBitmapContextCreate(NULL, a, a, CGImageGetBitsPerComponent(imageRef), CGImageGetBytesPerRow(imageRef), colorSpaceInfo, bitmapInfo); } if (sourceImage.imageOrientation == UIImageOrientationLeft) { CGContextRotateCTM (bitmap, radians(90)); CGContextTranslateCTM (bitmap, 0, -a); } else if (sourceImage.imageOrientation == UIImageOrientationRight) { CGContextRotateCTM (bitmap, radians(-90)); CGContextTranslateCTM (bitmap, -a, 0); } else if (sourceImage.imageOrientation == UIImageOrientationUp) { // NOTHING } else if (sourceImage.imageOrientation == UIImageOrientationDown) { CGContextTranslateCTM (bitmap, a, a); CGContextRotateCTM (bitmap, radians(-180.)); } CGContextDrawImage(bitmap, CGRectMake(0, 0, a, a), imageRef); CGImageRef ref = CGBitmapContextCreateImage(bitmap); _image = [UIImage imageWithCGImage:ref]; CGImageRelease(imageRef); } </code></pre>
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Title
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PostAcceptedAnswerId
1. This table or related slice is empty.
PostParentId
1. POResizing UIimages pulled from the Camera also ROTATES the UIimage?
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  PTQuestion
PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. This table or related slice is empty.
UserOwnerUserId
1. USwzbozon
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1. This table or related slice is empty.
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1. This table or related slice is empty.

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