mirror of
https://github.com/reanimate/reanimate.git
synced 2026-09-14 09:32:22 +00:00
241 lines
23 KiB
HTML
241 lines
23 KiB
HTML
<html>
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
|
|
<style type="text/css">
|
|
span.lineno { color: white; background: #aaaaaa; border-right: solid white 12px }
|
|
span.nottickedoff { background: yellow}
|
|
span.istickedoff { background: white }
|
|
span.tickonlyfalse { margin: -1px; border: 1px solid #f20913; background: #f20913 }
|
|
span.tickonlytrue { margin: -1px; border: 1px solid #60de51; background: #60de51 }
|
|
span.funcount { font-size: small; color: orange; z-index: 2; position: absolute; right: 20 }
|
|
span.decl { font-weight: bold }
|
|
span.spaces { background: white }
|
|
</style>
|
|
</head>
|
|
<body>
|
|
<pre>
|
|
<span class="decl"><span class="nottickedoff">never executed</span> <span class="tickonlytrue">always true</span> <span class="tickonlyfalse">always false</span></span>
|
|
</pre>
|
|
<pre>
|
|
<span class="lineno"> 1 </span>{-# LANGUAGE RecordWildCards #-}
|
|
<span class="lineno"> 2 </span>{-# LANGUAGE TupleSections #-}
|
|
<span class="lineno"> 3 </span>{-# LANGUAGE UnicodeSyntax #-}
|
|
<span class="lineno"> 4 </span>{-|
|
|
<span class="lineno"> 5 </span>Copyright : Written by David Himmelstrup
|
|
<span class="lineno"> 6 </span>License : Unlicense
|
|
<span class="lineno"> 7 </span>Maintainer : lemmih@gmail.com
|
|
<span class="lineno"> 8 </span>Stability : experimental
|
|
<span class="lineno"> 9 </span>Portability : POSIX
|
|
<span class="lineno"> 10 </span>-}
|
|
<span class="lineno"> 11 </span>module Reanimate.Morph.Common
|
|
<span class="lineno"> 12 </span> ( PointCorrespondence
|
|
<span class="lineno"> 13 </span> , Trajectory
|
|
<span class="lineno"> 14 </span> , ObjectCorrespondence
|
|
<span class="lineno"> 15 </span> , Morph(..)
|
|
<span class="lineno"> 16 </span> , morph
|
|
<span class="lineno"> 17 </span> , splitObjectCorrespondence
|
|
<span class="lineno"> 18 </span> , dupObjectCorrespondence
|
|
<span class="lineno"> 19 </span> , genesisObjectCorrespondence
|
|
<span class="lineno"> 20 </span> , toShapes
|
|
<span class="lineno"> 21 </span> , normalizePolygons
|
|
<span class="lineno"> 22 </span> , annotatePolygons
|
|
<span class="lineno"> 23 </span> , unsafeSVGToPolygon
|
|
<span class="lineno"> 24 </span> ) where
|
|
<span class="lineno"> 25 </span>
|
|
<span class="lineno"> 26 </span>import Control.Lens
|
|
<span class="lineno"> 27 </span>import qualified Data.Vector as V
|
|
<span class="lineno"> 28 </span>import Graphics.SvgTree (DrawAttributes, Texture (..),
|
|
<span class="lineno"> 29 </span> drawAttributes, fillColor,
|
|
<span class="lineno"> 30 </span> fillOpacity, groupOpacity,
|
|
<span class="lineno"> 31 </span> strokeColor, strokeOpacity)
|
|
<span class="lineno"> 32 </span>import Linear.V2
|
|
<span class="lineno"> 33 </span>import Reanimate.Animation
|
|
<span class="lineno"> 34 </span>import Reanimate.ColorComponents
|
|
<span class="lineno"> 35 </span>import Reanimate.Ease
|
|
<span class="lineno"> 36 </span>import Reanimate.Math.Polygon (APolygon, Epsilon, Polygon,
|
|
<span class="lineno"> 37 </span> mkPolygon, pAddPoints, pCentroid,
|
|
<span class="lineno"> 38 </span> pCutEqual, pSize, polygonPoints)
|
|
<span class="lineno"> 39 </span>import Reanimate.PolyShape
|
|
<span class="lineno"> 40 </span>import Reanimate.Svg
|
|
<span class="lineno"> 41 </span>
|
|
<span class="lineno"> 42 </span>-- import Debug.Trace
|
|
<span class="lineno"> 43 </span>
|
|
<span class="lineno"> 44 </span>-- Correspondence
|
|
<span class="lineno"> 45 </span>-- Trajectory
|
|
<span class="lineno"> 46 </span>-- Color interpolation
|
|
<span class="lineno"> 47 </span>-- Polygon holes
|
|
<span class="lineno"> 48 </span>-- Polygon splitting
|
|
<span class="lineno"> 49 </span>
|
|
<span class="lineno"> 50 </span>-- Graphical polygon? FIXME: Come up with a better name.
|
|
<span class="lineno"> 51 </span>type GPolygon = (DrawAttributes, Polygon)
|
|
<span class="lineno"> 52 </span>
|
|
<span class="lineno"> 53 </span>-- | Method determining how points in the source polygon align with
|
|
<span class="lineno"> 54 </span>-- points in the target polygon.
|
|
<span class="lineno"> 55 </span>type PointCorrespondence = Polygon → Polygon → (Polygon, Polygon)
|
|
<span class="lineno"> 56 </span>
|
|
<span class="lineno"> 57 </span>-- | Method for interpolating between two aligned polygons.
|
|
<span class="lineno"> 58 </span>type Trajectory = (Polygon, Polygon) → (Double → Polygon)
|
|
<span class="lineno"> 59 </span>
|
|
<span class="lineno"> 60 </span>-- | Method for pairing sets of polygons.
|
|
<span class="lineno"> 61 </span>type ObjectCorrespondence = [GPolygon] → [GPolygon] → [(GPolygon, GPolygon)]
|
|
<span class="lineno"> 62 </span>
|
|
<span class="lineno"> 63 </span>-- | Morphing strategy
|
|
<span class="lineno"> 64 </span>data Morph = Morph
|
|
<span class="lineno"> 65 </span> { <span class="nottickedoff"><span class="decl"><span class="nottickedoff">morphTolerance</span></span></span> :: Double
|
|
<span class="lineno"> 66 </span> -- ^ Morphing curves is not always possible and
|
|
<span class="lineno"> 67 </span> -- sometimes shapes are reduced to polygons or meta-curves.
|
|
<span class="lineno"> 68 </span> -- This parameter determined the accuracy of this transformation.
|
|
<span class="lineno"> 69 </span> , <span class="nottickedoff"><span class="decl"><span class="nottickedoff">morphColorComponents</span></span></span> :: ColorComponents
|
|
<span class="lineno"> 70 </span> -- ^ Color components used for color interpolation. LAB is usually
|
|
<span class="lineno"> 71 </span> -- the best option here.
|
|
<span class="lineno"> 72 </span> , <span class="nottickedoff"><span class="decl"><span class="nottickedoff">morphPointCorrespondence</span></span></span> :: PointCorrespondence
|
|
<span class="lineno"> 73 </span> -- ^ Desired point-correspondence algorithm.
|
|
<span class="lineno"> 74 </span> , <span class="nottickedoff"><span class="decl"><span class="nottickedoff">morphTrajectory</span></span></span> :: Trajectory
|
|
<span class="lineno"> 75 </span> -- ^ Desired interpolation algorithm.
|
|
<span class="lineno"> 76 </span> , <span class="nottickedoff"><span class="decl"><span class="nottickedoff">morphObjectCorrespondence</span></span></span> :: ObjectCorrespondence
|
|
<span class="lineno"> 77 </span> -- ^ Desired object-correspondence algorithm.
|
|
<span class="lineno"> 78 </span> }
|
|
<span class="lineno"> 79 </span>
|
|
<span class="lineno"> 80 </span>{-# INLINE morph #-}
|
|
<span class="lineno"> 81 </span>-- | Apply morphing strategy to interpolate between two SVG images.
|
|
<span class="lineno"> 82 </span>morph :: Morph -> SVG -> SVG -> Double -> SVG
|
|
<span class="lineno"> 83 </span><span class="decl"><span class="istickedoff">morph Morph{..} src dst = \t -></span>
|
|
<span class="lineno"> 84 </span><span class="spaces"> </span><span class="istickedoff">case <span class="nottickedoff">t</span> of</span>
|
|
<span class="lineno"> 85 </span><span class="spaces"> </span><span class="istickedoff">-- 0 -> lowerTransformations src</span>
|
|
<span class="lineno"> 86 </span><span class="spaces"> </span><span class="istickedoff">-- 1 -> lowerTransformations dst</span>
|
|
<span class="lineno"> 87 </span><span class="spaces"> </span><span class="istickedoff">_ -> mkGroup</span>
|
|
<span class="lineno"> 88 </span><span class="spaces"> </span><span class="istickedoff">[ render (genPoints t)</span>
|
|
<span class="lineno"> 89 </span><span class="spaces"> </span><span class="istickedoff">& drawAttributes .~ genAttrs <span class="nottickedoff">t</span></span>
|
|
<span class="lineno"> 90 </span><span class="spaces"> </span><span class="istickedoff">| (genAttrs, genPoints) <- gens</span>
|
|
<span class="lineno"> 91 </span><span class="spaces"> </span><span class="istickedoff">]</span>
|
|
<span class="lineno"> 92 </span><span class="spaces"> </span><span class="istickedoff">where</span>
|
|
<span class="lineno"> 93 </span><span class="spaces"> </span><span class="istickedoff">render p = mkLinePathClosed</span>
|
|
<span class="lineno"> 94 </span><span class="spaces"> </span><span class="istickedoff">[ (x,y) | V2 x y <- map (fmap realToFrac) $ V.toList $ polygonPoints p ]</span>
|
|
<span class="lineno"> 95 </span><span class="spaces"> </span><span class="istickedoff">srcShapes = toShapes morphTolerance src</span>
|
|
<span class="lineno"> 96 </span><span class="spaces"> </span><span class="istickedoff">dstShapes = toShapes morphTolerance dst</span>
|
|
<span class="lineno"> 97 </span><span class="spaces"> </span><span class="istickedoff">pairs = morphObjectCorrespondence srcShapes dstShapes</span>
|
|
<span class="lineno"> 98 </span><span class="spaces"> </span><span class="istickedoff">gens =</span>
|
|
<span class="lineno"> 99 </span><span class="spaces"> </span><span class="istickedoff">[ (interpolateAttrs <span class="nottickedoff">morphColorComponents</span> srcAttr <span class="nottickedoff">dstAttr</span>, morphTrajectory arranged)</span>
|
|
<span class="lineno"> 100 </span><span class="spaces"> </span><span class="istickedoff">| ((srcAttr, srcPoly'), (dstAttr, dstPoly')) <- pairs</span>
|
|
<span class="lineno"> 101 </span><span class="spaces"> </span><span class="istickedoff">, let arranged = morphPointCorrespondence srcPoly' dstPoly'</span>
|
|
<span class="lineno"> 102 </span><span class="spaces"> </span><span class="istickedoff">]</span></span>
|
|
<span class="lineno"> 103 </span>
|
|
<span class="lineno"> 104 </span>-- | Add points to each polygon such that they end up with same size.
|
|
<span class="lineno"> 105 </span>normalizePolygons :: (Real a, Fractional a, Epsilon a) => APolygon a -> APolygon a -> (APolygon a, APolygon a)
|
|
<span class="lineno"> 106 </span><span class="decl"><span class="istickedoff">normalizePolygons src dst =</span>
|
|
<span class="lineno"> 107 </span><span class="spaces"> </span><span class="istickedoff">(pAddPoints (max 0 $ dstN-srcN) src</span>
|
|
<span class="lineno"> 108 </span><span class="spaces"> </span><span class="istickedoff">,pAddPoints (max 0 $ srcN-dstN) dst)</span>
|
|
<span class="lineno"> 109 </span><span class="spaces"> </span><span class="istickedoff">where</span>
|
|
<span class="lineno"> 110 </span><span class="spaces"> </span><span class="istickedoff">srcN = pSize src</span>
|
|
<span class="lineno"> 111 </span><span class="spaces"> </span><span class="istickedoff">dstN = pSize dst</span></span>
|
|
<span class="lineno"> 112 </span>
|
|
<span class="lineno"> 113 </span>interpolateAttrs :: ColorComponents -> DrawAttributes -> DrawAttributes -> Double -> DrawAttributes
|
|
<span class="lineno"> 114 </span><span class="decl"><span class="istickedoff">interpolateAttrs colorComps src dst t =</span>
|
|
<span class="lineno"> 115 </span><span class="spaces"> </span><span class="istickedoff">src & fillColor .~ (<span class="nottickedoff">interpColor</span> <$> src^.fillColor <*> <span class="nottickedoff">dst^.fillColor</span>)</span>
|
|
<span class="lineno"> 116 </span><span class="spaces"> </span><span class="istickedoff">& strokeColor .~ (<span class="nottickedoff">interpColor</span> <$> src^.strokeColor <*> <span class="nottickedoff">dst^.strokeColor</span>)</span>
|
|
<span class="lineno"> 117 </span><span class="spaces"> </span><span class="istickedoff">& fillOpacity .~ (<span class="nottickedoff">interpOpacity</span> <$> src^.fillOpacity <*> <span class="nottickedoff">dst^.fillOpacity</span>)</span>
|
|
<span class="lineno"> 118 </span><span class="spaces"> </span><span class="istickedoff">& groupOpacity .~ (<span class="nottickedoff">interpOpacity</span> <$> src^.groupOpacity <*> <span class="nottickedoff">dst^.groupOpacity</span>)</span>
|
|
<span class="lineno"> 119 </span><span class="spaces"> </span><span class="istickedoff">& strokeOpacity .~ (<span class="nottickedoff">interpOpacity</span> <$> src^.strokeOpacity <*> <span class="nottickedoff">dst^.strokeOpacity</span>)</span>
|
|
<span class="lineno"> 120 </span><span class="spaces"> </span><span class="istickedoff">where</span>
|
|
<span class="lineno"> 121 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">interpColor (ColorRef a) (ColorRef b) =</span></span>
|
|
<span class="lineno"> 122 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">ColorRef $ interpolateRGBA8 colorComps a b t</span></span>
|
|
<span class="lineno"> 123 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">-- interpolateColor (ColorRef a) FillNone = ColorRef a</span></span>
|
|
<span class="lineno"> 124 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">interpColor a _ = a</span></span>
|
|
<span class="lineno"> 125 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">interpOpacity a b = realToFrac (fromToS (realToFrac a) (realToFrac b) t)</span></span></span>
|
|
<span class="lineno"> 126 </span>
|
|
<span class="lineno"> 127 </span>-- | Object-correspondence algorithm that spawn objects as necessary.
|
|
<span class="lineno"> 128 </span>genesisObjectCorrespondence :: ObjectCorrespondence
|
|
<span class="lineno"> 129 </span><span class="decl"><span class="nottickedoff">genesisObjectCorrespondence left right =</span>
|
|
<span class="lineno"> 130 </span><span class="spaces"> </span><span class="nottickedoff">case (left, right) of</span>
|
|
<span class="lineno"> 131 </span><span class="spaces"> </span><span class="nottickedoff">([] , []) -> []</span>
|
|
<span class="lineno"> 132 </span><span class="spaces"> </span><span class="nottickedoff">([], (y1,y2):ys) -></span>
|
|
<span class="lineno"> 133 </span><span class="spaces"> </span><span class="nottickedoff">((y1,y2), (y1, emptyFrom y2 y2)) : genesisObjectCorrespondence [] ys</span>
|
|
<span class="lineno"> 134 </span><span class="spaces"> </span><span class="nottickedoff">((x1,x2):xs, []) -></span>
|
|
<span class="lineno"> 135 </span><span class="spaces"> </span><span class="nottickedoff">((x1,x2), (x1, emptyFrom x2 x2)) : genesisObjectCorrespondence xs []</span>
|
|
<span class="lineno"> 136 </span><span class="spaces"> </span><span class="nottickedoff">(x:xs, y:ys) -></span>
|
|
<span class="lineno"> 137 </span><span class="spaces"> </span><span class="nottickedoff">(x,y) : genesisObjectCorrespondence xs ys</span>
|
|
<span class="lineno"> 138 </span><span class="spaces"> </span><span class="nottickedoff">where</span>
|
|
<span class="lineno"> 139 </span><span class="spaces"> </span><span class="nottickedoff">emptyFrom a b = mkPolygon $ V.map (const $ pCentroid a) (polygonPoints b)</span></span>
|
|
<span class="lineno"> 140 </span>
|
|
<span class="lineno"> 141 </span>-- | Object-correspondence algorithm that duplicate objects as necessary.
|
|
<span class="lineno"> 142 </span>dupObjectCorrespondence :: ObjectCorrespondence
|
|
<span class="lineno"> 143 </span><span class="decl"><span class="nottickedoff">dupObjectCorrespondence left right =</span>
|
|
<span class="lineno"> 144 </span><span class="spaces"> </span><span class="nottickedoff">case (left, right) of</span>
|
|
<span class="lineno"> 145 </span><span class="spaces"> </span><span class="nottickedoff">(_, []) -> []</span>
|
|
<span class="lineno"> 146 </span><span class="spaces"> </span><span class="nottickedoff">([], _) -> []</span>
|
|
<span class="lineno"> 147 </span><span class="spaces"> </span><span class="nottickedoff">([x], [y]) -></span>
|
|
<span class="lineno"> 148 </span><span class="spaces"> </span><span class="nottickedoff">[(x,y)]</span>
|
|
<span class="lineno"> 149 </span><span class="spaces"> </span><span class="nottickedoff">([(x1,x2)], yShapes) -></span>
|
|
<span class="lineno"> 150 </span><span class="spaces"> </span><span class="nottickedoff">let x2s = replicate (length yShapes) x2</span>
|
|
<span class="lineno"> 151 </span><span class="spaces"> </span><span class="nottickedoff">in dupObjectCorrespondence (map (x1,) x2s) yShapes</span>
|
|
<span class="lineno"> 152 </span><span class="spaces"> </span><span class="nottickedoff">(xShapes, [(y1,y2)]) -></span>
|
|
<span class="lineno"> 153 </span><span class="spaces"> </span><span class="nottickedoff">let y2s = replicate (length xShapes) y2</span>
|
|
<span class="lineno"> 154 </span><span class="spaces"> </span><span class="nottickedoff">in dupObjectCorrespondence xShapes (map (y1,) y2s)</span>
|
|
<span class="lineno"> 155 </span><span class="spaces"> </span><span class="nottickedoff">(x:xs, y:ys) -></span>
|
|
<span class="lineno"> 156 </span><span class="spaces"> </span><span class="nottickedoff">(x, y) : dupObjectCorrespondence xs ys</span></span>
|
|
<span class="lineno"> 157 </span>
|
|
<span class="lineno"> 158 </span>-- | Object-correspondence algorithm that splits objects in smaller pieces
|
|
<span class="lineno"> 159 </span>-- as necessary.
|
|
<span class="lineno"> 160 </span>splitObjectCorrespondence :: ObjectCorrespondence
|
|
<span class="lineno"> 161 </span>-- splitObjectCorrespondence = dupObjectCorrespondence
|
|
<span class="lineno"> 162 </span><span class="decl"><span class="istickedoff">splitObjectCorrespondence left right =</span>
|
|
<span class="lineno"> 163 </span><span class="spaces"> </span><span class="istickedoff">case (left, right) of</span>
|
|
<span class="lineno"> 164 </span><span class="spaces"> </span><span class="istickedoff">(_, []) -> <span class="nottickedoff">[]</span></span>
|
|
<span class="lineno"> 165 </span><span class="spaces"> </span><span class="istickedoff">([], _) -> <span class="nottickedoff">[]</span></span>
|
|
<span class="lineno"> 166 </span><span class="spaces"> </span><span class="istickedoff">([x], [y]) -></span>
|
|
<span class="lineno"> 167 </span><span class="spaces"> </span><span class="istickedoff">[(x,y)]</span>
|
|
<span class="lineno"> 168 </span><span class="spaces"> </span><span class="istickedoff">([(x1,x2)], yShapes) -></span>
|
|
<span class="lineno"> 169 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">let x2s = splitPolygon (length yShapes) x2</span></span>
|
|
<span class="lineno"> 170 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">in splitObjectCorrespondence (map (x1,) x2s) yShapes</span></span>
|
|
<span class="lineno"> 171 </span><span class="spaces"> </span><span class="istickedoff">(xShapes, [(y1,y2)]) -></span>
|
|
<span class="lineno"> 172 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">let y2s = splitPolygon (length xShapes) y2</span></span>
|
|
<span class="lineno"> 173 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">in splitObjectCorrespondence xShapes (map (y1,) y2s)</span></span>
|
|
<span class="lineno"> 174 </span><span class="spaces"> </span><span class="istickedoff">(x:xs, y:ys) -></span>
|
|
<span class="lineno"> 175 </span><span class="spaces"> </span><span class="istickedoff"><span class="nottickedoff">(x,y) : splitObjectCorrespondence xs ys</span></span></span>
|
|
<span class="lineno"> 176 </span>
|
|
<span class="lineno"> 177 </span>splitPolygon :: Int -> Polygon -> [Polygon]
|
|
<span class="lineno"> 178 </span><span class="decl"><span class="nottickedoff">splitPolygon 1 p = [p]</span>
|
|
<span class="lineno"> 179 </span><span class="spaces"></span><span class="nottickedoff">splitPolygon n p =</span>
|
|
<span class="lineno"> 180 </span><span class="spaces"> </span><span class="nottickedoff">let (a,b) = pCutEqual p</span>
|
|
<span class="lineno"> 181 </span><span class="spaces"> </span><span class="nottickedoff">in splitPolygon (n`div`2) a ++ splitPolygon ((n+1)`div`2) b</span></span>
|
|
<span class="lineno"> 182 </span>
|
|
<span class="lineno"> 183 </span>-- joinPairs :: Correspondence -> [(DrawAttributes, PolyShape)] -> [(DrawAttributes, PolyShape)]
|
|
<span class="lineno"> 184 </span>-- -> [(DrawAttributes, DrawAttributes, [(RPoint, RPoint)])]
|
|
<span class="lineno"> 185 </span>-- joinPairs _ _ [] = []
|
|
<span class="lineno"> 186 </span>-- joinPairs _ [] _ = []
|
|
<span class="lineno"> 187 </span>-- joinPairs corr [(x1,x2)] [(y1,y2)] =
|
|
<span class="lineno"> 188 </span>-- [(x1,y1, corr x2 y2)]
|
|
<span class="lineno"> 189 </span>-- joinPairs corr [(x1,x2)] yShapes =
|
|
<span class="lineno"> 190 </span>-- let x2s = splitPolyShape 0.001 (length yShapes) x2
|
|
<span class="lineno"> 191 </span>-- in joinPairs corr (map (x1,) x2s) yShapes
|
|
<span class="lineno"> 192 </span>-- joinPairs corr xShapes [(y1,y2)] =
|
|
<span class="lineno"> 193 </span>-- let y2s = reverse $ splitPolyShape 0.001 (length xShapes) y2
|
|
<span class="lineno"> 194 </span>-- in joinPairs corr xShapes (map (y1,) y2s)
|
|
<span class="lineno"> 195 </span>-- joinPairs corr ((x1,x2):xs) ((y1,y2):ys) =
|
|
<span class="lineno"> 196 </span>-- (x1,y1, corr x2 y2) : joinPairs corr xs ys
|
|
<span class="lineno"> 197 </span>-- joinPairs _ _ _ = []
|
|
<span class="lineno"> 198 </span>
|
|
<span class="lineno"> 199 </span>-- FIXME: sort by size, smallest to largest
|
|
<span class="lineno"> 200 </span>-- | Extract shapes and their graphical attributes from an SVG node.
|
|
<span class="lineno"> 201 </span>toShapes :: Double -> SVG -> [(DrawAttributes, Polygon)]
|
|
<span class="lineno"> 202 </span><span class="decl"><span class="istickedoff">toShapes tol src =</span>
|
|
<span class="lineno"> 203 </span><span class="spaces"> </span><span class="istickedoff">[ (attrs, plToPolygon tol shape)</span>
|
|
<span class="lineno"> 204 </span><span class="spaces"> </span><span class="istickedoff">| (_, attrs, glyph) <- svgGlyphs $ lowerTransformations $ pathify src</span>
|
|
<span class="lineno"> 205 </span><span class="spaces"> </span><span class="istickedoff">, shape <- map mergePolyShapeHoles $ plGroupShapes $ svgToPolyShapes glyph</span>
|
|
<span class="lineno"> 206 </span><span class="spaces"> </span><span class="istickedoff">]</span></span>
|
|
<span class="lineno"> 207 </span>
|
|
<span class="lineno"> 208 </span>-- | Extract the first polygon in an SVG node. Will fail if there
|
|
<span class="lineno"> 209 </span>-- are no acceptable shapes.
|
|
<span class="lineno"> 210 </span>unsafeSVGToPolygon :: Double -> SVG -> Polygon
|
|
<span class="lineno"> 211 </span><span class="decl"><span class="nottickedoff">unsafeSVGToPolygon tol src = snd $ head $ toShapes tol src</span></span>
|
|
<span class="lineno"> 212 </span>
|
|
<span class="lineno"> 213 </span>-- | Map over each polygon in an SVG node.
|
|
<span class="lineno"> 214 </span>annotatePolygons :: (Polygon -> SVG) -> SVG -> SVG
|
|
<span class="lineno"> 215 </span><span class="decl"><span class="nottickedoff">annotatePolygons fn svg = mkGroup</span>
|
|
<span class="lineno"> 216 </span><span class="spaces"> </span><span class="nottickedoff">[ fn poly & drawAttributes .~ attr</span>
|
|
<span class="lineno"> 217 </span><span class="spaces"> </span><span class="nottickedoff">| (attr, poly) <- toShapes 0.001 svg</span>
|
|
<span class="lineno"> 218 </span><span class="spaces"> </span><span class="nottickedoff">]</span></span>
|
|
|
|
</pre>
|
|
</body>
|
|
</html>
|