Flickr APIを使って、写真のGPS情報を取得するには「flickr.photos.getExif」APIを使います。
flickr.photos.getExifからのレスポンス
<rsp stat="ok">
<photo id="12499156243" secret="170c8d62c6" server="7419" farm="8" camera="Apple iPhone 5s">
<exif tagspace="IFD0" tagspaceid="0" tag="Make" label="Make">
<raw>Apple</raw>
</exif>
<exif tagspace="IFD0" tagspaceid="0" tag="Model" label="Model">
<raw>iPhone 5s</raw>
</exif>
<exif tagspace="IFD0" tagspaceid="0" tag="Orientation" label="Orientation">
<raw>Rotate 90 CW</raw>
</exif>
・
・
・
</photo>
</rsp>
このExif情報を使ってアプリ側で何かしたい場合は、
上記のflickrから返ってくるレスポンスとiOS側でExifを扱う定数を紐付ける必要があります。
以下は、その一部です。
Exif情報を取得した写真はiPhone5Sで撮影したものです。
撮影したカメラや撮影時の環境でレスポンスの内容は変わります。
| flickr(tagspace) | flickr(tag) | flickr(label) | iOS |
|---|---|---|---|
| IFD0 | Make | Make | kCGImagePropertyTIFFMake |
| IFD0 | Model | Model | kCGImagePropertyTIFFModel |
| IFD0 | Orientation | Orientation | kCGImagePropertyTIFFOrientation |
| IFD0 | XResolution | X-Resolution | kCGImagePropertyTIFFXResolution |
| IFD0 | YResolution | Y-Resolution | kCGImagePropertyTIFFYResolution |
| IFD0 | ResolutionUnit | ResolutionUnit | kCGImagePropertyTIFFResolutionUnit |
| IFD0 | Software | Software | kCGImagePropertyTIFFSoftware |
| IFD0 | ModifyDate | Date and Time (Modified) | kCGImagePropertyTIFFDateTime |
| IFD0 | YCbCrPositioning | YCbCr Positioning | ? |
| IFD1 | Compression | Compression | kCGImagePropertyTIFFCompression |
| IFD1 | ResolutionUnit | Resolution Unit | kCGImagePropertyTIFFResolutionUnit |
| IFD1 | ThumbnailOffset | Thumbnail Offset | ? |
| IFD1 | ThumbnailLength | Thumbnail Length | ? |
| ExifIFD | ExposureTime | Exposure | kCGImagePropertyExifExposureTime |
| ExifIFD | FNumber | Aperture | kCGImagePropertyExifFNumber |
| ExifIFD | ExposureProgram | ExposureProgram | kCGImagePropertyExifExposureProgram |
| ExifIFD | ISO | ISO Speed | kCGImagePropertyExifISOSpeedRatings |
| ExifIFD | ExifVersion | Exif Version | kCGImagePropertyExifVersion |
| ExifIFD | DateTimeOriginal | Date and Time (Original) | kCGImagePropertyExifDateTimeOriginal |
| ExifIFD | CreateDate | Date and Time (Digitized) | kCGImagePropertyExifDateTimeDigitized |
| ExifIFD | ComponentsConfiguration | Components Configuration | kCGImagePropertyExifComponentsConfiguration |
| ExifIFD | BrightnessValue | Brightness Value | kCGImagePropertyExifBrightnessValue |
| ExifIFD | MeteringMode | Metering Mode | kCGImagePropertyExifMeteringMode |
| ExifIFD | Flash | Flash | kCGImagePropertyExifFlash |
| ExifIFD | FocalLength | Focal Length | kCGImagePropertyExifFocalLength |
| ExifIFD | SubjectArea | Subject Area | kCGImagePropertyExifSubjectArea |
| ExifIFD | SubSecTimeOriginal | Sub Sec Time Original | kCGImagePropertyExifSubsecTimeOrginal |
| ExifIFD | SubSecTimeDigitized | Sub Sec Time Digitized | kCGImagePropertyExifSubsecTime or kCGImagePropertyExifSubsecTimeDigitized |
| ExifIFD | FlashpixVersion | Flashpix Version | kCGImagePropertyExifFlashPixVersion |
| ExifIFD | ColorSpace | Color Space | kCGImagePropertyExifColorSpace |
| ExifIFD | SensingMethod | Sensing Method | kCGImagePropertyExifSensingMethod |
| ExifIFD | SceneType | Scene Type | kCGImagePropertyExifSceneType |
| ExifIFD | ExposureMode | Exposure Mode | kCGImagePropertyExifExposureMode |
| ExifIFD | WhiteBalance | White Balance | kCGImagePropertyExifWhiteBalance |
| ExifIFD | DigitalZoomRatio | Digital Zoom Ratio | kCGImagePropertyExifDigitalZoomRatio |
| ExifIFD | FocalLengthIn35mmFormat | Focal Length (35mm format) | kCGImagePropertyExifFocalLenIn35mmFilm |
| ExifIFD | SceneCaptureType | Scene Capture Type | kCGImagePropertyExifSceneCaptureType |
| ExifIFD | LensInfo | Lens Info | kCGImagePropertyExifLensSpecification |
| ExifIFD | LensMake | Lens Make | kCGImagePropertyExifLensMake |
| ExifIFD | LensModel | Lens Model | kCGImagePropertyExifLensModel |
| GPS | GPSLatitudeRef | GPS Latitude Ref | kCGImagePropertyGPSLatitudeRef |
| GPS | GPSLatitude | GPS Latitude | kCGImagePropertyGPSLatitude |
| GPS | GPSLongitudeRef | GPS Longitude Ref | kCGImagePropertyGPSLongitudeRef |
| GPS | GPSLongitude | GPS Longitude | kCGImagePropertyGPSLongitude |
| GPS | GPSAltitudeRef | GPS Altitude Ref | kCGImagePropertyGPSAltitudeRef |
| GPS | GPSAltitude | GPS Altitude | kCGImagePropertyGPSAltitude |
| GPS | GPSTimeStamp | GPS Time Stamp | kCGImagePropertyGPSTimeStamp |
| GPS | GPSImgDirectionRef | GPS Img Direction Ref | kCGImagePropertyGPSImgDirectionRef |
| GPS | GPSImgDirection | GPS Img Direction | kCGImagePropertyGPSImgDirection |
| GPS | GPSImgDirection | GPS Img Direction | kCGImagePropertyGPSImgDirection |