Graphics.Rendering.Handa.Projection

Functions for off-axis projection.

Screens.

data Screen a

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

Methods

fmap :: (a -> b) -> Screen a -> Screen b

(<$) :: a -> Screen b -> Screen a

Eq a => Eq (Screen a)

Methods

(==) :: Screen a -> Screen a -> Bool

(/=) :: Screen a -> Screen a -> Bool

Data a => Data (Screen a)

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)

Methods

readsPrec :: Int -> ReadS (Screen a)

readList :: ReadS [Screen a]

readPrec :: ReadPrec (Screen a)

readListPrec :: ReadPrec [Screen a]

Show a => Show (Screen a)

Methods

showsPrec :: Int -> Screen a -> ShowS

show :: Screen a -> String

showList :: [Screen a] -> ShowS

Generic (Screen a)

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)

Methods

parseJSON :: Value -> Parser (Screen a)

parseJSONList :: Value -> Parser [Screen a]

(Generic a, Binary a) => Binary (Screen a)

Methods

put :: Screen a -> Put

get :: Get (Screen a)

putList :: [Screen a] -> Put

type Rep (Screen a)

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

The upper right corner.

aspectRatio

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

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

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

Methods

(==) :: OffAxisProjection -> OffAxisProjection -> Bool

(/=) :: OffAxisProjection -> OffAxisProjection -> Bool

Read OffAxisProjection

Methods

readsPrec :: Int -> ReadS OffAxisProjection

readList :: ReadS [OffAxisProjection]

readPrec :: ReadPrec OffAxisProjection

readListPrec :: ReadPrec [OffAxisProjection]

Show OffAxisProjection

Methods

showsPrec :: Int -> OffAxisProjection -> ShowS

show :: OffAxisProjection -> String

showList :: [OffAxisProjection] -> ShowS

projection

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

Arguments

:: (MatrixComponent a, RealFloat a)

=> IO [[a]]

An action to retrieve the projection matrix, in row-major order.

Retrieve the current projection matrix.