User:Lenny222

Things i think need improvement

• Diagrams
• GHC error messages
• Haskell Cookbook
• Haskell explained to the busy
• Mac OS X

Lila

Ideas

• 3d projection
  • 3d projection
• diagrams
  • histograms, density plots
• export
  • SVG
  • PDF
  • Illustrator JavaScript
  • Processing
  • SWF
  • TikZ/LaTeX
• import
  • SVG
  • PDF
• path operations
  • boolean operations
  • offset path
  • http://pyx.sourceforge.net/examples/drawing2/parallel.html
  • http://lib2geom.sourceforge.net/
  • http://inkscape.svn.sourceforge.net/viewvc/inkscape/inkscape/trunk/src/live_effects/
• recursive programming
  • ContextFree
• symbols
  • supershape
  • symbols

Data structures

data Document = Document{
    metaData:: Maybe MetaData
  , frame:: [Frame]
  } deriving(Eq, Show)

data Frame = Frame {
  } deriving(Eq, Show)

data Figure = Figure {
    fill :: Maybe Fill
  , shape :: Shape
  , stroke :: Maybe Stroke
  } deriving(Eq, Show)

data Fill = Fill {
    fillPaint :: Paint,
  } deriving(Eq, Show)

data Stroke = Stroke {
    strokePaint :: Paint,
  , lineWidth :: Double,
  , dashPattern :: DashPattern
  , lineCap :: LineCap
  , lineJoin :: LineJoin
  , miterLimit :: Double
  , startSymbol :: Maybe LineEnding
  , endSymbol :: Maybe LineEnding
  } deriving(Eq, Show)

data Paint =
    SolidColor
  | Pattern
  | Gradient
  deriving(Eq, Show)

data LineCap =
    LineCapButt
  | LineCapRound
  | LineCapSquare
  deriving(Eq, Show)

data LineJoin =
    LineJoinMiter
  | LineJoinRound
  | LineJoinBevel
  deriving(Eq, Show)

data Shape =
    Path
  | Primitive
  | Text
  deriving(Eq, Show)

data Path = Path {
    segments :: [Segment]
  }
  deriving(Eq, Show)

data Segment = 
    Move Point
  | Line {
      a :: Point
    , b :: Point
    }
  | HorizontalLine {
      a :: Point
    , w :: Double
    }
  | VerticalLine {
      a :: Point
    , h :: Double
    }
  | QuadraticBezier Point Point Point
  | CubicBezier Point Point Point Point
  deriving(Eq, Show)

data Point =
    Node2d Double Double
  | Node3d Double Double Double
  deriving(Eq, Show)

data Primitive =
    Circle
  | Ellipse
  | Rectangle
  | RegularPolygon
  | Square
  | Star
  deriving(Eq, Show)

class PathLike a =
	convertToPath :: a -> Path

Simplified Haskell homepage

A simplified Haskell frontpage

Why?

• to add a structure
• to reduce redundancy

Contact

Contact me via

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