| Safe Haskell | None |
|---|---|
| Language | Haskell2010 |
Graphics.Rasterific.Outline
Description
This module provide helper functions to create outline of shapes.
- type StrokeWidth = Float
- strokize :: Geometry geom => StrokeWidth -> Join -> (Cap, Cap) -> geom -> [Primitive]
- dashedStrokize :: Geometry geom => Float -> DashPattern -> StrokeWidth -> Join -> (Cap, Cap) -> geom -> [[Primitive]]
- approximatePathLength :: Path -> Float
Documentation
type StrokeWidth = Float
Type alias just to get more meaningful type signatures
Arguments
| :: Geometry geom | |
| => StrokeWidth | Stroke width |
| -> Join | Which kind of join will be used |
| -> (Cap, Cap) | Start and end capping. |
| -> geom | List of elements to strokize |
| -> [Primitive] |
This function will create the outline of a given geometry given a path. You can then stroke it.
stroke 3 (JoinMiter 0) (CapStraight 0, CapStraight 0) $
strokize 40 JoinRound (CapRound, CapRound) $
CubicBezier (V2 40 160) (V2 40 40)
(V2 160 40) (V2 160 160)
Arguments
| :: Geometry geom | |
| => Float | Starting offset |
| -> DashPattern | Dashing pattern to use for stroking |
| -> StrokeWidth | Stroke width |
| -> Join | Which kind of join will be used |
| -> (Cap, Cap) | Start and end capping. |
| -> geom | Elements to transform |
| -> [[Primitive]] |
Create a list of outlines corresponding to all the dashed elements. They can be then stroked
mapM_ (stroke 3 (JoinMiter 0) (CapStraight 0, CapStraight 0)) $
dashedStrokize 0 [10, 5]
40 JoinRound (CapStraight 0, CapStraight 0) $
CubicBezier (V2 40 160) (V2 40 40) (V2 160 40) (V2 160 160)
approximatePathLength :: Path -> Float
Return an approximation of the length of a given path. It's results is not precise but should be enough for rough calculations