handleDragUpdate method

  1. @override
void handleDragUpdate(
  1. Offset delta
)
override

A primary drag (one finger, or a left-button mouse drag), in logical pixels. The default rotates/looks; override to remap.

Implementation

@override
void handleDragUpdate(Offset delta) {
  final k = rotateSpeed / viewportSize.height;
  orbitBy(-delta.dx * k, -delta.dy * k);
}