The height of the rectangle.

Implementation

T get height => _height;

Sets the height of the rectangle.

The height must be non-negative.If a negative height is supplied, it is clamped to zero.

Setting the value will change the bottom edge of the rectangle,but will not changetop.

Implementation

set height(T height) {  if (height < 0) height = _clampToZero<T>(height);  _height = height;}