Demos

Lightweight interactive experiments to illustrate movable book behaviors—no full IIIF viewer required.

• Fold crossfade slider

  Blend between closed and open photographs of a flap to visualize the transformation.

• Fold flip (manifest-driven)

  Animate a circular flap flipping using hinge and region data parsed from the local IIIF manifest.

• Recto–Verso flip (Imperiia 315)

  Flip a card between front and back using a derivative manifest that crops the source image into two sides.

• Pumpkin accordion fold

  Four-panel horizontal accordion that collapses to show a jack-o-lantern and expands to reveal a vampire.

• UCLA flap fold and flip

  Animate a single fold-up flap on a 19th-century trade card, revealing the portrait printed on its verso, then flip it to the back.

• MNHS scrapbook — flap and sachet

  Drag a 1950s Birchwood League of Women Voters scrapbook flap open on its top hinge, then pull a foil hand-lotion sachet out of its pocket.