Safe Haskell | None |
---|---|
Language | Haskell2010 |
Synopsis
- data Sides a = Sides !a !a !a !a
- north :: forall a. Lens' (Sides a) a
- east :: forall a. Lens' (Sides a) a
- south :: forall a. Lens' (Sides a) a
- west :: forall a. Lens' (Sides a) a
- topSide :: Num r => Rectangle p r -> LineSegment 2 p r
- bottomSide :: Num r => Rectangle p r -> LineSegment 2 p r
- leftSide :: Num r => Rectangle p r -> LineSegment 2 p r
- rightSide :: Num r => Rectangle p r -> LineSegment 2 p r
- sides :: Num r => Rectangle p r -> Sides (LineSegment 2 p r)
- sides' :: Num r => Rectangle p r -> Sides (LineSegment 2 p r)
- sideDirections :: Sides CardinalDirection
Documentation
The four sides of a rectangle
Sides !a !a !a !a |
Instances
bottomSide :: Num r => Rectangle p r -> LineSegment 2 p r Source #
Oriented from *left to right*
rightSide :: Num r => Rectangle p r -> LineSegment 2 p r Source #
The right side, oriented from *bottom* to top
sides :: Num r => Rectangle p r -> Sides (LineSegment 2 p r) Source #
The sides of the rectangle, in order (Top, Right, Bottom, Left). The sides
themselves are also oriented in clockwise order. If, you want them in the
same order as the functions topSide
, bottomSide
, leftSide
, and
rightSide
, use sides'
instead.
sides' :: Num r => Rectangle p r -> Sides (LineSegment 2 p r) Source #
The sides of the rectangle. The order of the segments is (Top, Right,
Bottom, Left). Note that the segments themselves, are oriented as described
by the functions topSide, bottomSide, leftSide, rightSide (basically: from
left to right, and from bottom to top). If you want the segments oriented
along the boundary of the rectangle, use the sides
function instead.
sideDirections :: Sides CardinalDirection Source #
Constructs a Sides value that indicates the appropriate direction.