TerraHS-0.3 Contents Index

Algebras.Base.GeoObjects

Contents The TeGeoObject type The TeGeoObjects class Operations on TeGeoObject 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

Constructors TeGeoObject ObjectId [Attribute] [TeGeometry] Instances Show TeGeoObject Databases TeGeoObject TeDatabase 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

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

Operations on TeGeoObject

The Value type

data Value

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

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

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

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

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