Copyright	Written by David Himmelstrup
License	Unlicense
Maintainer	lemmih@gmail.com
Stability	experimental
Portability	POSIX
Safe Haskell	None
Language	Haskell2010

Reanimate.PolyShape

Description

A PolyShape is a closed set of curves.

Synopsis

newtype PolyShape = PolyShape {
- unPolyShape :: ClosedPath Double
}
data PolyShapeWithHoles
svgToPolyShapes :: Tree -> [PolyShape]
svgToPolygons :: Double -> SVG -> [Polygon]
renderPolyShape :: PolyShape -> Tree
renderPolyShapes :: [PolyShape] -> Tree
renderPolyShapePoints :: PolyShape -> Tree
plPathCommands :: PolyShape -> [PathCommand]
plLineCommands :: PolyShape -> [LineCommand]
plLength :: PolyShape -> Double
plArea :: PolyShape -> Double
plCurves :: PolyShape -> [CubicBezier Double]
isInsideOf :: PolyShape -> PolyShape -> Bool
plFromPolygon :: [RPoint] -> PolyShape
plToPolygon :: Double -> PolyShape -> Polygon
plDecompose :: [PolyShape] -> [[RPoint]]
unionPolyShapes :: [PolyShape] -> [PolyShape]
unionPolyShapes' :: Double -> [PolyShape] -> [PolyShape]
plDecompose' :: Double -> [PolyShape] -> [[RPoint]]
decomposePolygon :: [RPoint] -> [[RPoint]]
plGroupShapes :: [PolyShape] -> [PolyShapeWithHoles]
mergePolyShapeHoles :: PolyShapeWithHoles -> PolyShape
plPartial :: Double -> PolyShape -> PolyShape
plGroupTouching :: [PolyShape] -> [[([RPoint], PolyShape)]]

Documentation

newtype PolyShape Source #

Shape drawn by continuous line. May have overlap, may be convex.

Constructors

PolyShape
Fields unPolyShape :: ClosedPath Double

Instances

Instances details

Eq PolyShape Source #
Instance details Defined in Reanimate.PolyShape Methods (==) :: PolyShape -> PolyShape -> Bool # (/=) :: PolyShape -> PolyShape -> Bool #
Show PolyShape Source #
Instance details Defined in Reanimate.PolyShape Methods showsPrec :: Int -> PolyShape -> ShowS # show :: PolyShape -> String # showList :: [PolyShape] -> ShowS #

data PolyShapeWithHoles Source #

Polyshape with smaller, fully-enclosed holes.

svgToPolyShapes :: Tree -> [PolyShape] Source #

Extract all shapes from SVG nodes. Drawing attributes such as stroke and fill color are discarded.

svgToPolygons :: Double -> SVG -> [Polygon] Source #

Extract all polygons from SVG nodes. Curves are approximated to within the given tolerance.

renderPolyShape :: PolyShape -> Tree Source #

Render a polyshape as a single SVG path.

renderPolyShapes :: [PolyShape] -> Tree Source #

Render a set of polyshapes as a single SVG path.

renderPolyShapePoints :: PolyShape -> Tree Source #

Render control-points of a polyshape as circles.

plPathCommands :: PolyShape -> [PathCommand] Source #

Convert a polyshape to a list of SVG path commands.

plLineCommands :: PolyShape -> [LineCommand] Source #

Convert a polyshape to a list of line commands.

plLength :: PolyShape -> Double Source #

Length of polyshape circumference.

plArea :: PolyShape -> Double Source #

Area of polyshape.

plCurves :: PolyShape -> [CubicBezier Double] Source #

Destruct a polyshape into constituent curves.

isInsideOf :: PolyShape -> PolyShape -> Bool Source #

True iff lhs is inside of rhs. lhs and rhs may not overlap. Implementation: Trace a vertical line through the origin of A and check of this line intersects and odd number of times on both sides of A.

plFromPolygon :: [RPoint] -> PolyShape Source #

Construct a polyshape from the vertices in a polygon.

plToPolygon :: Double -> PolyShape -> Polygon Source #

Approximate a polyshape as a polygon within the given tolerance.

plDecompose :: [PolyShape] -> [[RPoint]] Source #

Deconstruct a polyshape into non-intersecting, convex polygons.

unionPolyShapes :: [PolyShape] -> [PolyShape] Source #

Merge overlapping shapes.

unionPolyShapes' :: Double -> [PolyShape] -> [PolyShape] Source #

Merge overlapping shapes to within given tolerance.

plDecompose' :: Double -> [PolyShape] -> [[RPoint]] Source #

Deconstruct a polyshape into non-intersecting, convex polygons.