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  • Picture Infrastructure

    January 15th, 2015
    blog, pictures, tech
    Every year I go back over the pictures I have and put up a selection of them under jefftk.com/pictures. For the first eight years or so this was just a simple list of thumbnails linking to larger versions of the images:
      <a href="family_dinner.jpg">
        <img src="family_dinner-tn.jpg"></a>
      <a href="alex_jeff_alice_rick_music.jpg">
        <img src="alex_jeff_alice_rick_music-tn.jpg"></a>
      <a href="davy_alex.jpg">
        <img src="davy_alex-tn.jpg"></a>
    
    Clicking on a picture, viewing it, and clicking back is kind of annoying, so I added a lightbox view last year. This year I wanted a better experience on my phone, so I rewrote the lightbox code to handle phones. [1]

    Over time the thumbnails got bigger and bigger as ideas about acceptable bandwidth have changed:

    year height
    2005 96px
    2006 96px
    2007 96px
    2008 96px
    2009 96px
    2010 128px
    2011 200px
    2012 300px
    2013 300px
    2014 400px
    At this point the 96px thumbnails are awkwardly small, so I've now gone back over all the years to bring thumbnails up to size and add the mobile-suporting changes I had made for 2014. I've also added srcset support for 2x displays:

       sed 's~img src="\([^"]*\)-tn.jpg"~
              img src="\1-tn.jpg"
                  srcset="\1-tn.jpg 1x, \1-2x.jpg 2x"~'
    

    (Historical consistency was very helpful here.)


    [1] Code is on github.

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