ViewportController constructor

ViewportController({
  1. double initialScale = 1.0,
  2. Offset initialOffset = Offset.zero,
  3. double minScale = 0.1,
  4. double maxScale = 5.0,
})

Implementation

ViewportController({
  double initialScale = 1.0,
  Offset initialOffset = Offset.zero,
  this.minScale = 0.1,
  this.maxScale = 5.0,
}) : _state = ViewportState(
        scale: initialScale.clamp(minScale, maxScale).toDouble(),
        offset: initialOffset,
      );