In particular, I don’t think there is single-touch input, only multi-touch. Also, the origin of rotation does not seem to travel with the translation

This sample also rotates around a fixed origin https://developer.android.com/reference/kotlin/androidx/compose/foundation/gestures/package-summary#(androidx.compose.ui.i[…]olean,kotlin.Function4)

At least as far as I can tell

Oof, nevermind. Looks like my problem was including the centroid, when I didn’t need to

Although, as a separate issue, I should mention that I needed to use two separate

graphicsLayer

blocks, like this

Modifier
  .graphicsLayer {
    // apply translation here
  }
  .pointerInput(...)
  .graphicsLayer {
    // apply rotation here
  }

Without separate blocks, the pointer input doesn’t translate. It may be worth pointing that out in the docs?