Re: Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions
Re: Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions
- Subject: Re: Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions
- From: David Duncan <email@hidden>
- Date: Tue, 27 Mar 2012 13:28:56 -0700
On Mar 27, 2012, at 1:04 PM, Andreas Mayer wrote:
>
> Am 27.03.2012 um 20:13 schrieb David Duncan:
>
>> Primarily because people abuse the resolution field, and as such it cannot be trusted for this particular function. In a perfect world, we would only ever see 72 (1x) or 144 (2x) in the resolution field, but instead the value tends to be practically random.
>
> Oh. OK. In that case, shouldn't the framework offer an image format, that works reliably?
Its not a matter of the image format, but a matter of the format's flexibility. In terms of general image authoring, the fact that PNG can specify practically any resolution is a hard requirement. In terms of generating an image to be used as part of a UI in an iOS application, its a fault that can't be easily dealt with without ensuring that all authoring is done in a particular way.
--
David Duncan
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| References: | |
| | >Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions (From: Ray <email@hidden>) |
| | >Re: Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions (From: David Duncan <email@hidden>) |
| | >Re: Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions (From: Andreas Mayer <email@hidden>) |
| | >Re: Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions (From: David Duncan <email@hidden>) |
| | >Re: Question about UIImage, scaling, and UIGraphicsBeginImageContextWithOptions (From: Andreas Mayer <email@hidden>) |