setPictureMetadata
setPictureMetadata* ( *aPicture * : picture , metaName : string , metaContents : variable )
| Parameter | Type | Description | |
|---|---|---|---|
| aPicture | picture | → | Picture whose metadata you want to set |
| metaName | string | → | Name or path of block to set |
| metaContents | variable | ← | Metadata contents |
Description
The setPictureMetadata command lets you set or modify the contents of the metadata (or meta-tags) found in the picture (Qodly picture variable), when they are modifiable.
Metadata are additional information inserted into pictures. Qoldy lets you handle four types of standard metadata: EXIF, GPS, IPTC and TIFF.
::: note
For a detailed description of these metadata types, you can consult the following documents: http://www.iptc.org/std/IIM/4.1/specification/IIMV4.1.pdf (IPTC) and http://exif.org/Exif2-2.PDF (TIFF, EXIF and GPS).
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Note
When all the metadata are handled via a DOM element reference, the tags are stored as attributes attached to an element (a child of the referenced element) whose name is the block name (TIFF, IPTC, etc.). When a specific metadata block is manipulated, the block tags are stored as attributes that are directly attached to the element referenced by the command.