terrahs-0.5: Simple library for GIS Programs in Haskell. Source code Contents Index

Algebras.Base.GeoObjects

Contents The TeGeoObject type The TeGeoObjects class The Value type The Attribute type The Attributes class

Synopsis

data TeGeoObject = TeGeoObject ObjectId [Attribute] [TeGeometry] class (Num n, Points p n, Lines l n, Polygons pg l n, Geometries g pg l p n, Ids i, Values v, Attributes at v) => GeoObjects a i at v g pg l p n | a -> i at v g pg l p n where getId :: a -> i getAttributes :: a -> [at] getGeometries :: a -> [g] data Value = StValue String | DbValue Double | InValue Int32 | Undefined data Attribute = Attr (String, Value) class Values v => Attributes a v | a -> v where getName :: a -> String getValue :: a -> v getValuebyName :: [Attribute] -> String -> Value

The TeGeoObject type

data TeGeoObject Source

Constructors TeGeoObject ObjectId [Attribute] [TeGeometry] Instances Show TeGeoObject GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double

The TeGeoObjects class

class (Num n, Points p n, Lines l n, Polygons pg l n, Geometries g pg l p n, Ids i, Values v, Attributes at v) => GeoObjects a i at v g pg l p n | a -> i at v g pg l p n where Source

Methods getId :: a -> i Source Returns the object identification getAttributes :: a -> [at] Source Returns the attributes list from a geoobject getGeometries :: a -> [g] Source Returns the geometries list from a geoobject Instances GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double

The Value type

data Value Source

Constructors StValue String DbValue Double InValue Int32 Undefined Instances Eq Value Num Value Show Value Values Value Attributes Attribute Value GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double

The Attribute type

data Attribute Source

Constructors Attr (String, Value) Instances Show Attribute Attributes Attribute Value GeoObjects TeGeoObject ObjectId Attribute Value TeGeometry TePolygon TeLine2D TePoint Double

The Attributes class

class Values v => Attributes a v | a -> v where Source

Methods getName :: a -> String Source getValue :: a -> v Source Instances Attributes Attribute Value Attributes Attribute Value

getValuebyName :: [Attribute] -> String -> Value Source

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