Codec.Wavefront.Object

Context and elements

data Ctxt

The lexer context. The result of lexing a stream of tokens is this exact type.

Constructors

Ctxt

Fields

ctxtName :: Maybe Text

Name of the object. Nothing means that the object is not user-defined.

ctxtLocations :: DList Location

Locations.

ctxtTexCoords :: DList TexCoord

Texture coordinates.

ctxtNormals :: DList Normal

Normals.

ctxtPoints :: DList (Element Point)

Points.

ctxtLines :: DList (Element Line)

Lines.

ctxtFaces :: DList (Element Face)

Faces.

ctxtCurrentObject :: Maybe Text

Current object.

ctxtCurrentGroups :: [Text]

Current groups.

ctxtCurrentMtl :: Maybe Text

Current material.

ctxtMtlLibs :: DList Text

Material libraries.

Instances

Eq Ctxt

Show Ctxt

emptyCtxt :: Ctxt

The empty Ctxt. Such a context exists at the beginning of the token stream and gets altered as we consume tokens.

data Element a

An element holds a value along with the user-defined object’s name (if exists), the associated groups and the used material.

Constructors

Element

Fields

elObject :: Maybe Text

elGroups :: [Text]

elMtl :: Maybe Text

elValue :: a

Instances

Eq a => Eq (Element a)

Show a => Show (Element a)

lexer :: TokenStream -> Ctxt

The lexer function, consuming tokens and yielding a Ctxt.

Wavefront OBJ

type WavefrontOBJ = Ctxt

Wavefront OBJ type.