Transforming points

[rparrett]

Hello, thanks for working on this library.

Inside of my ReactNativeZoomableView I have an image, which contains distinct "snapping points." When a user taps the RNZV, I look up the nearest snapping point, and can place an Indicator on that spot with some basic math. So far, so good.

However, also want to position a Menu , which exists as a sibling to the RNZV in the hierarchy, at this "snapped point".

How can I transform an arbitrary point in "image space" to screen / view space? I see offsetX etc, but I seem to be pretty confused because no combination of offset / zoom level / etc seem to produce values that make sense.

<BottomTabNavigator>
  <View>
      <ReactNativeZoomableView>
          <Image/>
          <Indicator/>
      </ReactNativeZoomableView>
      <Menu />
  </View>
</BottomTabNavigator>