ENCX::S57FeatureQuery Class Reference

A means of querying an S-57 cell within a SENC to obtain a collection of the cell's features. More...

import"encxcom.idl";

Inheritance diagram for ENCX::S57FeatureQuery:

Public Member Functions
HRESULT	Construct ([in] IS57Manager *manager, [in] IS57CellIdentifier *cellid)
	Specify the SENC the S-57 cell to be queried. More...
HRESULT	SetAreaFilter ([in] IGeoRect *rect)
	Constrain to a geographical area. Default is the whole world. More...
HRESULT	SetFeatureFilter ([in] IS57FeatureIdentifiers *featureIds, [in] VARIANT_BOOL bInclude)
	Constrain to specific features. More...
HRESULT	SetObjectFilter ([in] IS57ObjectClassCollection *ObjectClassCollection, [in] VARIANT_BOOL bInclude)
	Constrain to specific types of object. More...

Properties
IS57FeatureIdentifiers	Results [get]
	Obtain the collection of features that satisfy the constraints. More...

Detailed Description

A means of querying an S-57 cell within a SENC to obtain a collection of the cell's features.

Additional criteria can be applied to filter the returned features.

IS57Manager::Cells() can be used to obtain cells within a geographical area that can be used as input to IS57FeatureQuery::Construct().

Properties and methods via IS57FeatureQuery.

Definition at line 4290 of file encxcom.idl.

Member Function Documentation

Construct()

HRESULT IS57FeatureQuery::Construct ( [in] IS57Manager *  manager, [in] IS57CellIdentifier *  cellid  )

inherited

Specify the SENC the S-57 cell to be queried.

SetAreaFilter()

HRESULT IS57FeatureQuery::SetAreaFilter ( [in] IGeoRect *  rect )

inherited

Constrain to a geographical area. Default is the whole world.

SetFeatureFilter()

HRESULT IS57FeatureQuery::SetFeatureFilter ( [in] IS57FeatureIdentifiers *  featureIds, [in] VARIANT_BOOL  bInclude  )

inherited

Constrain to specific features.

An empty collection of features will allow all features. This is the default.

A non-empty collection of features can be used to include only those features in the collection, or to include only those features that are NOT in the collection.

SetObjectFilter()

HRESULT IS57FeatureQuery::SetObjectFilter ( [in] IS57ObjectClassCollection *  ObjectClassCollection, [in] VARIANT_BOOL  bInclude  )

inherited

Constrain to specific types of object.

An empty collection of Object Classes will allow all types of object. This is the default.

A non-empty collection of Object Classes can be used to include only those Object Classes in the collection, or to include only those Object Classes that are NOT in the collection.

Property Documentation

Results

IS57FeatureIdentifiers IS57FeatureQuery::Results

getpropertyinherited

Obtain the collection of features that satisfy the constraints.