TerraHS-0.3 Contents Index

TerraHS.Misc.Object

Contents The Pointer class The Convert class The Element class The Size class

Description

Module for handling terralib an haskell objects

Synopsis

class Pointer a where new :: a -> IO (Ptr a) fromPointer :: Ptr a -> IO a delete :: Ptr a -> IO () class Convert a b where to :: a -> b from :: b -> a class Element a b where getElement :: Ptr a -> Int32 -> IO b class Size a where size :: Ptr a -> IO Int32

The Pointer class

class Pointer a where

The class Pointer is a class for handling pointers to objects, ex: TePoint and TePointPtr Methods new :: a -> IO (Ptr a) create a pointer from haskell object fromPointer :: Ptr a -> IO a create a haskell object from a pointer delete :: Ptr a -> IO () delete a pointer from memory Instances Pointer TeBox Pointer TeCell Pointer TeCellSet Pointer TeDatabase Pointer TeLayer Pointer TeLine2D Pointer TeLineSet Pointer TePoint Pointer TePointSet Pointer TePolygon Pointer TePolygonSet Pointer TeQuerier Pointer TeSTInstance Pointer TeTable Pointer (TeRaster Double)

The Convert class

class Convert a b where

The class Convert permit the converts from diferents objects Methods to :: a -> b convert from a to b from :: b -> a convert from b to a

The Element class

class Element a b where

Methods getElement :: Ptr a -> Int32 -> IO b Instances Element TeCellSet TeCell Element TeLineSet TeLine2D Element TePointSet TePoint Element TePolygonSet TePolygon

The Size class

class Size a where

Methods size :: Ptr a -> IO Int32 Instances Size TeCellSet Size TeLineSet Size TePointSet Size TePolygonSet

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