touch.touch.pinch
Declaration
lua
touch.pinch(cx, cy, startR, endR [, duration_ms])Description
Pinch gesture (zoom in/out).
Parameters
`cx,cy` — center point
`startR` — starting radius
`endR` — ending radius (smaller = pinch in, larger = pinch out)
`duration_ms` (number, optional)
Return Values
none
Example
lua
touch.pinch(375, 667, 100, 50, 500) -- pinch in
touch.pinch(375, 667, 50, 200, 500) -- pinch out