cga/Graphics/Diagram/Gif.hs

43 lines
1.2 KiB
Haskell

{-# OPTIONS_HADDOCK ignore-exports #-}
module Graphics.Diagram.Gif where
import Algebra.VectorTypes
import Codec.Picture.Gif
import Diagrams.Backend.Cairo
import Diagrams.Prelude
import Graphics.Diagram.Plotter
import Graphics.Diagram.Types
import Parser.Meshparser
-- |Return a list of tuples used by 'gifMain' to generate an animated gif.
gifDiag :: DiagProp -> [PT] -> [(Diagram Cairo R2, GifDelay)]
gifDiag p xs =
fmap ((\x -> (x, 100)) . (<> nonChDiag)) .
flip (++)
[mkDiag (convexHPText `mappend`
convexHP)
p xs <> lastUpperHull <> lastLowerHull] $
(lowerHullList ++ ((<> lastLowerHull) <$> upperHullList))
where
upperHullList = convexUHStepsLs p xs
lastUpperHull = last upperHullList
lowerHullList = convexLHStepsLs p xs
lastLowerHull = last lowerHullList
-- add the x-axis and the other default stuff
nonChDiag =
mconcat .
fmap (\x -> mkDiag x p xs) $
[coordPoints,
xAxis,
yAxis,
grid,
whiteRectB]
-- |Same as gifDiag, except that it takes a string containing the
-- mesh file content instead of the the points.
gifDiagS :: DiagProp -> MeshString -> [(Diagram Cairo R2, GifDelay)]
gifDiagS p = gifDiag p . meshToArr