Pinch-and-Zoom Library
"Apply a pinch-and-zoom experience that’s feels native and communicates the transform reactively and lets you project any layer on top of the transformed canvas.
Unlike other libraries, Zoompinch does not just use the center point between two fingers as projection center. The fingers get correctly projected on the virtual canvas. This makes pinching on touch devices feel native-like.
Aside of touch, mouse and wheel events, gesture events (Safari Desktop) are supported as well!"
Maurice Conrad
@Maurice_Conrad