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The gallery provides various functionalities, e.g., a compact overview of items inside the gallery, a lightbox to show images and play mediavideos, as well as a sharing feature.
However, each functionality can only be used when the information is provided. Furthermore, it must be clear where the information is located inside the data.
The gallery mapping file enables allows diverse data structures to be converted mapped to a predefined vocabulary, ensuring data compatibility within the gallery.
Thereby gallery keys are mapped to data keys, i.e., column names of the data layers.
Example
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Gallery Mapping Keys - Version 1.3
In the following, the keys are divided thematically via sections, where each section groups specific functionalities in the gallery.
Note:
- All gallery keys are optional. If the data does not contain
...
- certain information and the key pair (gallery key: data key) is not set in the mapping file, the corresponding functionality will not be enabled in the gallery.
Example
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Gallery Mapping Keys
In the following, the keys are divided thematically via sections.
- All data keys that are identical to the gallery keys can be omitted - the entry in the gallery mapping file is only required for key names that differ.
- If the data key is unknown, i.e. the WFS response does not contain it, it is set as a constant parameter during mapping.
| Section | Section | Required Gallery Key | Note | ||
|---|---|---|---|---|---|
Title | |||||
| event | Icons on top of gallery|||||
iFDO icons | Values are based on the iFDO core icons. For a detailed overview, see SOP iFDO Creation Supplement | .||||
acquisition | image-acquisition | ||||
marine-zone | image-marine-zonedeployment | ||||
image-deployment | |||||
navigation | image-navigationillumination | ||||
image-illumination | |||||
scale-reference | image-scale-reference | ||||
quality | image-quality | ||||
pixel-magnitude | image-resolution / image-pixel-magnitude | spectral'image-resolution' in formerly iFDOs | |||
image-spectral-resolution | |||||
capture-mode | image-capture-mode | ||||
license | image-license | ||||
Overview text | on top of gallery
| depth | |||
z_value | For definition, see O2A specification for GeoCSV (.sdi.csv) | ||||
z_type | For definition, see O2A specification for GeoCSV (.sdi.csv) | ||||
citation |
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pi_name |
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Main gallery | |||||
mime_type | The MIME-Type name used to distinguish between media in the gallery. Recommended to use MIME-Type, i.e., image/jpg. Based on It is based on the source media, not the web preview file (i.e.g, video/mp4). Must start Consequently, it starts with 'image' or 'video' (e.g., image/jpg, video/octet-stream). Capitalization does not matter. If not available, auto guessing based on acquisition - if defined, else based on presence of photo_src and video_src. | ||||
photo_src | URL to the web version of the photo file. Fallback if scrset is not given or not supported by the browser. | ||||
photo_srcset | HTML5 img srcset attribute. Recommended to use width descriptor. | ||||
video_src | String or list with strings containing URLs to media representations. Recommended to use a list for streams, where each list item is a fallback if the previous item was not supported in the browser. Example: [ | ||||
photo_width | Largest width of photo proxy (same orientation as web preview image). Observe: if an orientation parameter is present in the exif metadata of a proxy, it will not be considered. Consequently, photo_width must be larger than photo_height to show a proxy in landscape mode. | ||||
photo_height | Largest height of photo proxy (same orientation as web preview image). Observe: if an orientation parameter is present in the exif metadata of a proxy, it will not be considered. Consequently, photo_width must be smaller than photo_height to show a proxy in portrait mode. | ||||
video_width | Largest width of video proxy (same orientation as web preview imageproxy). | ||||
video_height | Largest height of video proxy (same orientation as web preview imageproxy). | ||||
thumbnail_src | URL to the webvtt file. Thumbnails are shown when pointer hovers over video player seek bar. | ||||
cover_src | URL to the image that is representing the video in the galleryvideo cover. | ||||
cover_srcset | HTML5 img srcset attribute. Recommended to use width descriptor. | ||||
poster_src | Background poster when loading video in player. If skipped, default viewer based posters are shown. | ||||
duration | Video duration in human readable format, i.e., 00:16:45. Shown as overlay on video cover. | ||||
Sharing Feature | |||||
persistent_identifier | Media identifier used for the sharing feature in the media gallery. Fallback Fallbacks exist when not given. | ||||
name | Media file nameFile name of the source media file. Assumption: Only once per gallery. Share media functionSharing feature: First fallback if no persistent identifier is given. | ||||
date_time | Share media functionSharing feature: Second fallback if no persistent identifier is given to calculate a share id (together with coordinates). |
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