Geo::OGR::DataSource Class Reference

Inheritance diagram for Geo::OGR::DataSource:

List of all members.

Public Class Methods
list	Capabilities ()
Geo::OGR::DataSource	Open (scalar name, scalar update=0)
Geo::OGR::DataSource	OpenShared (scalar name, scalar update=0)
Public Object Methods
scalar	TestCapability (scalar cap)
Geo::OGR::Layer	Layer (scalar layer=0)
list	Layers ()
scalar	GetLayerCount ()
Geo::OGR::Driver	GetDriver ()
scalar	GetName ()
Geo::OGR::Layer	CreateLayer (scalar Name, scalar SRS=undef, scalar GeometryType= 'Unknown', listref Options=undef, hashref Schema=undef)
Geo::OGR::Layer	CopyLayer (scalar layer, scalar name, listref options=undef)
	DeleteLayer (scalar layer)
	DeleteLayer (hash param)
Geo::OGR::Layer	ExecuteSQL (scalar statement, scalar geom=undef, scalar dialect="")
	ReleaseResultSet (scalar layer)
Geo::OGR::Layer	GetLayerByIndex (scalar index=0)
Geo::OGR::Layer	GetLayerByName (scalar name)
scalar	GetRefCount ()
scalar	GetSummaryRefCount ()
Public Attributes
	name

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Member Function Documentation

list Geo::OGR::DataSource::Capabilities

(

)

Returns:

the class method returns a list of all potential capabilities a data source may have; the object method returns a list of all capabilities the data source has

Geo::OGR::Layer Geo::OGR::DataSource::CopyLayer	(	scalar	layer,
		scalar	name,
		listref	options = undef
	)

Parameters:

layer	a Geo::OGR::Layer object to be copied
name	a name for the new layer
options

Returns:

a new Geo::OGR::Layer object

Geo::OGR::Layer Geo::OGR::DataSource::CreateLayer	(	scalar	Name,
		scalar	SRS = undef,
		scalar	GeometryType = 'Unknown',
		listref	Options = undef,
		hashref	Schema = undef
	)

This method can also be used with a named parameters syntax: $ds->CreateLayer({..named parameters..}).

Parameters:

Name
SRS	a Geo::OSR::SpatialReference object
GeometryType	one of geometry types (a string: Point, LineString, etc)
Options
Schema

Returns:

a new Geo::OGR::Layer object

Geo::OGR::DataSource::DeleteLayer

(

scalar

layer

)

Deletes a layer from the data source. Note that if there are layer objects for the deleted layer, they become unusable.

Parameters:

layer

name (primary) or index (secondary) of the layer to be deleted, if ambiguous use named parameter syntax (name or index)

Geo::OGR::DataSource::DeleteLayer

(

hash

param

)

Deletes a layer from the data source. Note that if there are layers objects for the deleted layer, they become unusable.

Parameters:

param

named parameter (name or index) for the layer to be deleted

Geo::OGR::Layer Geo::OGR::DataSource::ExecuteSQL	(	scalar	statement,
		scalar	geom = undef,
		scalar	dialect = ""
	)

Parameters:

statement
geom	a Geo::OGR::Geometry object
dialect

Returns:

a new Geo::OGR::Layer object

Geo::OGR::Driver Geo::OGR::DataSource::GetDriver

(

)

Returns:

a Geo::OGR::Driver object for this data source

Geo::OGR::Layer Geo::OGR::DataSource::GetLayerByIndex

(

scalar

index = 0

)

Parameters:

index

Returns:

a new Geo::OGR::Layer object

Geo::OGR::Layer Geo::OGR::DataSource::GetLayerByName

(

scalar

name

)

Parameters:

name

Returns:

a new Geo::OGR::Layer object

scalar Geo::OGR::DataSource::GetLayerCount

(

)

Returns:

integer

scalar Geo::OGR::DataSource::GetName

(

)

Returns:

string

scalar Geo::OGR::DataSource::GetRefCount

(

)

Returns:

integer

scalar Geo::OGR::DataSource::GetSummaryRefCount

(

)

Returns:

integer

Geo::OGR::Layer Geo::OGR::DataSource::Layer

(

scalar

layer = 0

)

Parameters:

layer

a name (primary) or index (secondary) of the requested layer. If not given, then returns the first layer.

Returns:

a new Geo::OGR::Layer object

list Geo::OGR::DataSource::Layers

(

)

Returns:

a list of layer names

Geo::OGR::DataSource Geo::OGR::DataSource::Open	(	scalar	name,
		scalar	update = 0
	)

Parameters:

name	the data source name (directory, filename, etc.)
update	if set to true, the data source can be updated

Returns:

a new Geo::OGR::DataSource object

Reimplemented from Geo::OGR.

Geo::OGR::DataSource Geo::OGR::DataSource::OpenShared	(	scalar	name,
		scalar	update = 0
	)

Parameters:

name	the data source name (directory, filename, etc.)
update	if set to true, the data source can be updated

Returns:

a new Geo::OGR::DataSource object

Reimplemented from Geo::OGR.

Geo::OGR::DataSource::ReleaseResultSet

(

scalar

layer

)

Parameters:

layer

a layer the has been created with ExecuteSQL

scalar Geo::OGR::DataSource::TestCapability

(

scalar

cap

)

Parameters:

cap

Returns:

integer

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Member Data Documentation

Geo::OGR::DataSource::name

string (access as $datasource->{name})

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The documentation for this class was generated from the following file:

• lib/Geo/OGR.pm