Geo::OGR::FeatureDefn Class Reference

A definition of the attributes of a feature class or a layer. More...

Inheritance diagram for Geo::OGR::FeatureDefn:

Collaboration diagram for Geo::OGR::FeatureDefn:

Public Member Functions
public method	AddField (hash params)
public method	DeleteField (scalar name)
public object	GetFieldDefn (scalar name)
public list	GetFieldNames ()
public scalar	GetName ()
public hash reference	GetSchema ()
	Get the schema of this feature or layer definition. More...
public method	IsSame (Geo::OGR::FeatureDefn defn)
public scalar	IsStyleIgnored ()
public method	SetStyleIgnored (scalar IgnoreState)
public Geo::OGR::FeatureDefn	new (hash schema)
Public Member Functions inherited from Geo::OGR
public list	ByteOrders ()
public scalar	GeometryTypeModify (scalar type, scalar modifier)
public scalar	GeometryTypeTest (scalar type, scalar test, scalar type2)
public list	GeometryTypes ()
public Geo::OGR::Driver	GetDriver (scalar name)
public list	GetDriverNames ()
public method	GetNonLinearGeometriesEnabledFlag ()
public Geo::OGR::DataSource	GetOpenDS (scalar number)
public scalar	GetOpenDSCount ()
public method	OLMD_FID64 ()
public Geo::OGR::DataSource	Open (scalar name, scalar update=0)
public Geo::OGR::DataSource	OpenShared (scalar name, scalar update=0)
public method	SetGenerate_DB2_V72_BYTE_ORDER (scalar Generate_DB2_V72_BYTE_ORDER)
public method	SetNonLinearGeometriesEnabledFlag ()

Detailed Description

A definition of the attributes of a feature class or a layer.

A definition object is a collection of field definition objects. A read-only definition object is obtained from a layer or a feature.

Definition at line 7418 of file all.pm.

Member Function Documentation

public method Geo::OGR::FeatureDefn::AddField

(

hash

params

)

Parameters

params

named parameters to create a new Geo::OGR::FieldDefn or Geo::OGR::GeomFieldDefn object.

Code:

public method Geo::OGR::FeatureDefn::DeleteField

(

scalar

name

)

Note

Currently only geometry fields can be deleted.

Parameters

index

the index of the geometry field to be deleted.

Code:

public object Geo::OGR::FeatureDefn::GetFieldDefn

(

scalar

name

)

Parameters

name	the name of the field.

Returns

either a Geo::OGR::FieldDefn or Geo::OGR::GeomFieldDefn object that represents the field in question.

Code:

public list Geo::OGR::FeatureDefn::GetFieldNames

(

)

The names of the fields in this layer or feature definition.

Returns

the list of field names.

Code:

public scalar Geo::OGR::FeatureDefn::GetName

(

)

Returns

the name of this layer or feature definition.

Code:

public hash reference Geo::OGR::FeatureDefn::GetSchema

(

)

Get the schema of this feature or layer definition.

The schema is a hash whose keywords are Name, StyleIgnored and Fields. Fields is an anonymous array of first non-spatial and then spatial field schemas as in Geo::OGR::FieldDefn::Schema and Geo::OGR::GeomFieldDefn::Schema.

Returns

the schema of this feature or layer definition.

Code:

public method Geo::OGR::FeatureDefn::IsSame

(

Geo::OGR::FeatureDefn

defn

)

Returns

true if this definition is similar to the other definition, false otherwise.

Code:

public scalar Geo::OGR::FeatureDefn::IsStyleIgnored

(

)

Get the ignore status of style information when fetching features.

Returns

the ignore status of style information

Since

1.9.0

Code:

public Geo::OGR::FeatureDefn Geo::OGR::FeatureDefn::new

(

hash

schema

)

Class method. Creates a new layer or feature definition. The new definition is either initialized to the given schema or it will contain no non-spatial fields and one spatial field, whose Name is '' and GeometryType is 'Unknown' or the value of the named parameter GeometryType.

Parameters

schema

[optional] The schema for the new feature definition, as in Geo::OGR::FeatureDefn::Schema.

Returns

a Geo::OGR::FeatureDefn object

Example usage:

$fd = Geo::OGR::FeatureDefn->new( 
Name => "name",
Fields => [{ Name => 'field1', Type => 'String' },
{ Name => 'geom', GeometryType => 'Point' }] );

Code:

public method Geo::OGR::FeatureDefn::SetStyleIgnored

(

scalar

IgnoreState

)

Set the ignore status of style information when fetching features.

Since

1.9.0

Code:

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

• all.pm