40 lines
1.3 KiB
Haskell
40 lines
1.3 KiB
Haskell
{-# OPTIONS_HADDOCK ignore-exports #-}
|
|
|
|
module Graphics.Diagram.Gif where
|
|
|
|
import Algebra.Vector
|
|
import Algorithms.GrahamScan
|
|
import Codec.Picture.Gif
|
|
import qualified Data.ByteString.Char8 as B
|
|
import Data.Monoid
|
|
import Diagrams.Backend.Cairo
|
|
import Diagrams.Prelude hiding ((<>))
|
|
import Graphics.Diagram.AlgoDiags
|
|
import Graphics.Diagram.Core
|
|
import Graphics.Diagram.Plotter
|
|
import Parser.Meshparser
|
|
|
|
|
|
-- |Return a list of tuples used by 'gifMain' to generate an animated gif.
|
|
gifDiag :: DiagProp -> [P2 Double] -> [(Diagram Cairo, GifDelay)]
|
|
gifDiag p xs =
|
|
fmap ((\x -> (x, 50)) . (<> nonChDiag))
|
|
(upperHullList
|
|
<> fmap (<> last upperHullList) lowerHullList
|
|
<> [mkDiag (mconcat [convexHPText, convexHP, convexHLs])
|
|
p{ showCoordText = True } [xs]])
|
|
where
|
|
upperHullList = mkGifDiag convexHStepsLs p purple grahamUHSteps xs
|
|
lowerHullList = mkGifDiag convexHStepsLs p orange grahamLHSteps xs
|
|
-- add the x-axis and the other default stuff
|
|
nonChDiag =
|
|
mconcat
|
|
. fmap (\x -> mkDiag x p [xs])
|
|
$ [coordPoints, plotterBG]
|
|
|
|
|
|
-- |Same as gifDiag, except that it takes a string containing the
|
|
-- mesh file content instead of the the points.
|
|
gifDiagS :: DiagProp -> B.ByteString -> [(Diagram Cairo, GifDelay)]
|
|
gifDiagS p = gifDiag p . filterValidPT p . meshToArr
|