All my web site pictures have thumbnails created for my standard method of viewing
Yeah, I understand how you get it to the forums like that, I was asking about the gallery software on your website that gives you the thumbnails/800x600/full size/etc.
Sorry, didn't understand your question.
[ :graduated: ]
The program is a bit of PHP, named index.php, so the web server picks it up automatically. It was originally written by my son, who is something of an expert in creating clever bits of software. I have since evolved it, it is anything but a "good" bit of software, but it seems to do the job.
Basically, the pictures are put in a directory on the server. Then index.php in that directory is called with possible parameters. A directory called tmp within the picture directory is used to hold the thumbnail and 800x600 sized pictures. These are created from the original picture if they don't exist as required. A simple call will pull up the first page of thumbnails; parameters may then be used to page through the thumbnails, to pull up the 800x600, or a full picture. If you do a bit of browsing, you will readily see how parameters are used.
I can add a title file for the directory (defaults to the directory name), also a legend file associated with each picture (defaults to the EXIF time-stamp if it exists or the file time-stamp), as well as a rotation file in case the orientation is not correct, although index.php looks for rotational information in the EXIF data within the original picture. Title, legend and rotation are all editable by me (but hopefully not by anyone else) through the same software.
I can also put in a file that gives instructions about the order (by EXIF date, file date, file name, or a list), but this I have to edit in by hand (adding this function is on the list of "things to do").
Being a good Linux computer, all index.php's link to a common file, so if I want/need to change anything, I only have to do it once, not the several hundred times that index.php appears to exist!
I also have another associated bit of software which sits above the picture directories that can be used to scan all directories relatively quickly, where sample tiny thumbnails are used to show samples from each directory. The general mechanisms are similar. Although I evolved this for my own purposes, it is publicly useable
here. It is nothing like as well developed as index.php :beta: .
[/ :graduated: ]
Sorry you asked?