StacRect class

A Stac representation of rectangles for geometric operations.

This class supports multiple construction methods for creating rectangles, including from coordinates, dimensions, center points, and circles. Different construction types use different parameter combinations.

{@tool snippet} Dart Example:

// Rectangle from coordinates
StacRect(
  rectType: StacRectType.fromLTRB,
  left: 10.0,
  top: 20.0,
  right: 100.0,
  bottom: 80.0,
)

{@end-tool}

{@tool snippet} JSON Example:

{
  "rectType": "fromLTRB",
  "left": 10.0,
  "top": 20.0,
  "right": 100.0,
  "bottom": 80.0
}

{@end-tool}