In the TW nothing at all for the images:-) They are presented by simply 
generating a random number in the range 0000 and 3999. All the files are 
numbered like "fw_1234.jpg" and presented one at a time. It works for that 
app as they are simply a vast set of images so no persistent tiddlers are 
needed. I do intend to add ability to add favourites  eventually, but that 
would simply be a list of pointers to external files. I aim to use EXIF 
without creating 4000 Tiddlers or any external lists. If I wanted I could 
do that already simply extracting the EXIF to spreadsheet and importing 
them.Its that I'm trying to avoid. I'm hoping, if I can figure it out, how 
to use embedded EXIF data in images dynamically only when showing the 
image. It won't persist beyond that as I would not be needed.

Hope this is clear!

Josiah

On Wednesday, 17 October 2018 22:43:57 UTC+2, Mark S. wrote:
>
> Until someone with the answer shows up, a few questions.
>
> What information *are *you storing in the TW (if not EXIF, then what?) ?
>
> Is this being served up via Bob, or single-file?
>
> I'm sure there are tools for extracting and making files from EXIF data 
> (DigiKam will make sidecars, for instance). So if you had 4000 exif files, 
> it should be possible to make 4000 tid files that could then be either 
> combined or linked to existing image tiddlers.
>
> -- Mark
>
> On Wednesday, October 17, 2018 at 10:53:46 AM UTC-7, @TiddlyTweeter wrote:
>>
>> I have a long term project to showcase 4000 images of paintings made by 
>> children of Bonfire Night (a great UK festival held on the 5th of November).
>>
>> I already figured out how to show them without them ever having Tiddlers 
>> in TW (too many to do one by one). Showing is done using numbers generated 
>> between 0 & 3999 rather than calling on individual Tiddlers. It works. 
>>
>> The remaining issue is meta data that is held in the image files as EXIF 
>> data. And that is my concern here. 
>>
>> I'm wondering if anyone knows of a way to extract EXIF data from image 
>> files using TW? 
>>
>> The great advantage of EXIF is that every image caries with it its own 
>> data record (like: description, date shot, and any details I add) so there 
>> is no need for a second external set of documentation or database. Being 
>> able to access EXIF data in images loaded into TW would keep it very 
>> lightweight and efficient for large galleries of images--whilst providing 
>> useful displayable information.
>>
>> This is just an initial query to see if anyone here may have 
>> understanding of what I am getting at.
>>
>> Any tips appreciated.
>>
>> Best wishes
>> Josiah
>>
>

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