Copyright	(c) 2015 Brian W Bush
License	MIT
Maintainer	Brian W Bush <consult@brianwbush.info>
Stability	Stable
Portability	Portable
Safe Haskell	None
Language	Haskell2010

Graphics.Rendering.Handa.Projection

Contents

Screens.
Projections.

Description

Functions for off-axis projection.

Synopsis

Screens.

data Screen a Source #

Description of a physical screen geometry.

Constructors

Screen
Fields lowerLeft :: Vertex3 a The lower left corner. lowerRight :: Vertex3 a The lower right corner. upperLeft :: Vertex3 a The upper left corner.

Instances

Functor Screen Source #
Methods fmap :: (a -> b) -> Screen a -> Screen b # (<$) :: a -> Screen b -> Screen a #
Eq a => Eq (Screen a) Source #
Methods (==) :: Screen a -> Screen a -> Bool # (/=) :: Screen a -> Screen a -> Bool #
Data a => Data (Screen a) Source #
Methods gfoldl :: (forall d b. Data d => c (d -> b) -> d -> c b) -> (forall g. g -> c g) -> Screen a -> c (Screen a) # gunfold :: (forall b r. Data b => c (b -> r) -> c r) -> (forall r. r -> c r) -> Constr -> c (Screen a) # toConstr :: Screen a -> Constr # dataTypeOf :: Screen a -> DataType # dataCast1 :: Typeable (* -> ) t => (forall d. Data d => c (t d)) -> Maybe (c (Screen a)) # dataCast2 :: Typeable ( -> * -> *) t => (forall d e. (Data d, Data e) => c (t d e)) -> Maybe (c (Screen a)) # gmapT :: (forall b. Data b => b -> b) -> Screen a -> Screen a # gmapQl :: (r -> r' -> r) -> r -> (forall d. Data d => d -> r') -> Screen a -> r # gmapQr :: (r' -> r -> r) -> r -> (forall d. Data d => d -> r') -> Screen a -> r # gmapQ :: (forall d. Data d => d -> u) -> Screen a -> [u] # gmapQi :: Int -> (forall d. Data d => d -> u) -> Screen a -> u # gmapM :: Monad m => (forall d. Data d => d -> m d) -> Screen a -> m (Screen a) # gmapMp :: MonadPlus m => (forall d. Data d => d -> m d) -> Screen a -> m (Screen a) # gmapMo :: MonadPlus m => (forall d. Data d => d -> m d) -> Screen a -> m (Screen a) #
Read a => Read (Screen a) Source #
Methods readsPrec :: Int -> ReadS (Screen a) # readList :: ReadS [Screen a] # readPrec :: ReadPrec (Screen a) # readListPrec :: ReadPrec [Screen a] #
Show a => Show (Screen a) Source #
Methods showsPrec :: Int -> Screen a -> ShowS # show :: Screen a -> String # showList :: [Screen a] -> ShowS #
Generic (Screen a) Source #
Associated Types type Rep (Screen a) :: * -> * # Methods from :: Screen a -> Rep (Screen a) x # to :: Rep (Screen a) x -> Screen a #
(Generic a, FromJSON a) => FromJSON (Screen a) Source #
Methods parseJSON :: Value -> Parser (Screen a) # parseJSONList :: Value -> Parser [Screen a] #
(Generic a, Binary a) => Binary (Screen a) Source #
Methods put :: Screen a -> Put # get :: Get (Screen a) # putList :: [Screen a] -> Put #
type Rep (Screen a) Source #
type Rep (Screen a) = D1 (MetaData "Screen" "Graphics.Rendering.Handa.Projection" "handa-opengl-0.1.12.1-1kPa5QvhFvW7EPEJhuE1zR" False) (C1 (MetaCons "Screen" PrefixI True) ((::) (S1 (MetaSel (Just Symbol "lowerLeft") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Vertex3 a))) ((::) (S1 (MetaSel (Just Symbol "lowerRight") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Vertex3 a))) (S1 (MetaSel (Just Symbol "upperLeft") NoSourceUnpackedness NoSourceStrictness DecidedLazy) (Rec0 (Vertex3 a))))))

upperRight :: Num a => Screen a -> Vertex3 a Source #

The upper right corner.

aspectRatio Source #

Arguments

:: (AdditiveGroup a, RealFloat a)
=> Screen a	The screen geometry.
-> a	The aspect ratio, namely the screen width divided by its height.

The aspect ratio.

throwRatio Source #

Arguments

:: (AdditiveGroup a, RealFloat a)
=> Screen a	The screen geometry.
-> Vertex3 a	The eye position.
-> a	The throw ratio, name the distance to the screen divided by its width.

The throw ratio.

Projections.

data OffAxisProjection Source #

The equations to use for off-axis projection.

Constructors

KooimaOffAxis	Based on Kooima 2009, <http://csc.lsu.edu/~kooima/pdfs/gen-perspective.pdf>, which assumes a rectangular screen.
VTKOffAxis	Based on VTK 6.3.0, <https://gitlab.kitware.com/vtk/vtk/blob/v6.3.0/Rendering/Core/vtkCamera.cxx#L414>, which does not assume a rectangular screen.

Instances

Eq OffAxisProjection Source #
Methods (==) :: OffAxisProjection -> OffAxisProjection -> Bool # (/=) :: OffAxisProjection -> OffAxisProjection -> Bool #
Read OffAxisProjection Source #
Methods readsPrec :: Int -> ReadS OffAxisProjection # readList :: ReadS [OffAxisProjection] # readPrec :: ReadPrec OffAxisProjection # readListPrec :: ReadPrec [OffAxisProjection] #
Show OffAxisProjection Source #
Methods showsPrec :: Int -> OffAxisProjection -> ShowS # show :: OffAxisProjection -> String # showList :: [OffAxisProjection] -> ShowS #

projection Source #

Arguments

:: (AdditiveGroup a, MatrixComponent a, RealFloat a)
=> OffAxisProjection	The off-axis equations to use.
-> Screen a	The screen geometry.
-> Vertex3 a	The eye position.
-> a	The distance to the near culling plane.
-> a	The distance to the far culling plane.
-> IO ()	An action for performing the off-axis projection.

Make an off-axis projection for a screen.

fetchProjection Source #

Arguments

:: (MatrixComponent a, RealFloat a)
=> IO [[a]]	An action to retrieve the projection matrix, in row-major order.

Retrieve the current projection matrix.