IlvMapGeometry Class Reference

This abstract class is the base class of the map geometry objects. More...

#include <ilviews/maps/geometry.h>

Inheritance diagram for IlvMapGeometry:

List of all members.

Public Member Functions
virtual IlvMapGeometry *	copy () const =0
	Returns a copy of the object.
virtual IlvClassInfo *	getClassInfo () const =0
	Returns the IlvClassInfo of the instance.
virtual const IlvMapGeometry *	getSubElement (IlUInt index) const =0
	Returns the sub element of index index if the geometry is a collection.
virtual IlUInt	getSubElementCount () const =0
	Returns the number of elements contained in the geometry if the geometry is a collection.
virtual IlBoolean	isCollection () const =0
	Returns IlTrue if the geometry is a collection of other geometries.
Static Public Member Functions
static IlvClassInfo *	ClassInfo ()
	Returns the class info.
Protected Member Functions
	IlvMapGeometry ()
	Constructor.

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Detailed Description

This abstract class is the base class of the map geometry objects.

The IlvMapGeometry classes represent the shape of the map features. There is a list of predefined geometries in the package ilog.views.maps.geometry. The instances of the predefined subclasses of IlvMapGeometry can be rendered by an IlvDefaultFeatureRenderer. Library: ilvmaps

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Constructor & Destructor Documentation

IlvMapGeometry::IlvMapGeometry

(

)

[protected]

Constructor.

Initializes an instance of the class.

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Member Function Documentation

static IlvClassInfo* IlvMapGeometry::ClassInfo

(

)

[static]

Returns the class info.

This static function, redefined for each subclass of IlvMapGeometry returns the IlvClassInfo of the class.

Returns:

An IlvClassInfo that should not be modified nor deleted.

Reimplemented in IlvMapArea, IlvMapCurve, and IlvMapRing.

virtual IlvMapGeometry* IlvMapGeometry::copy

(

)

const [pure virtual]

Returns a copy of the object.

Returns:

An IlvMapGeometry that must be deleted by the user.

Implemented in IlvMapArcSegment, IlvMapArcString, IlvMapArea, IlvMapCircle, IlvMapCircularRing, IlvMapGeometryCollection, IlvMapCurve, IlvMapCurveString, IlvMapImage, IlvMapLinearSegment, IlvMapLineString, IlvMapMultiArea, IlvMapMultiCurve, IlvMapMultiPoint, IlvMapPoint, IlvMapPolygon, IlvMapRaster, IlvMapRing, IlvMapSegment, IlvMapSegmentRing, IlvMapSegmentString, and IlvMapText.

virtual IlvClassInfo* IlvMapGeometry::getClassInfo

(

)

const [pure virtual]

Returns the IlvClassInfo of the instance.

Returns:

An IlvClassInfo that should not be modified nor deleted.

Implemented in IlvMapArcSegment, IlvMapArcString, IlvMapArea, IlvMapCircle, IlvMapCircularRing, IlvMapGeometryCollection, IlvMapCurve, IlvMapCurveString, IlvMapImage, IlvMapLinearSegment, IlvMapLineString, IlvMapMultiArea, IlvMapMultiCurve, IlvMapMultiPoint, IlvMapPoint, IlvMapPolygon, IlvMapRaster, IlvMapRing, IlvMapSegmentRing, IlvMapSegmentString, and IlvMapText.

virtual const IlvMapGeometry* IlvMapGeometry::getSubElement

(

IlUInt

index

)

const [pure virtual]

Returns the sub element of index index if the geometry is a collection.

Otherwise, it returns a null pointer.

Returns:

The sub element of index index if the geometry is a collection.

Implemented in IlvMapArcSegment, IlvMapCircle, IlvMapCircularRing, IlvMapGeometryCollection, IlvMapImage, IlvMapLinearSegment, IlvMapMultiArea, IlvMapMultiCurve, IlvMapMultiPoint, IlvMapPoint, IlvMapPolygon, IlvMapRaster, IlvMapSegmentRing, IlvMapSegmentString, and IlvMapText.

virtual IlUInt IlvMapGeometry::getSubElementCount

(

)

const [pure virtual]

Returns the number of elements contained in the geometry if the geometry is a collection.

Otherwise, it returns 0.

Returns:

The number of elements contained in the geometry if the geometry is a collection. Otherwise, it returns 0.

Implemented in IlvMapArcSegment, IlvMapCircle, IlvMapCircularRing, IlvMapGeometryCollection, IlvMapImage, IlvMapLinearSegment, IlvMapMultiArea, IlvMapMultiCurve, IlvMapMultiPoint, IlvMapPoint, IlvMapPolygon, IlvMapRaster, IlvMapSegmentRing, IlvMapSegmentString, and IlvMapText.

virtual IlBoolean IlvMapGeometry::isCollection

(

)

const [pure virtual]

Returns IlTrue if the geometry is a collection of other geometries.

The composite geometries predefined in Rogue Wave Views Maps are: IlvMapGeometryCollection, IlvMapMultiPoint, IlvMapSegmentString and its subclasses, IlvMapMultiCurve and IlvMapMultiArea.

Returns:

IlTrue if the geometry is a collection of other geometries.

Implemented in IlvMapArcSegment, IlvMapCircle, IlvMapCircularRing, IlvMapGeometryCollection, IlvMapImage, IlvMapLinearSegment, IlvMapMultiArea, IlvMapMultiCurve, IlvMapMultiPoint, IlvMapPoint, IlvMapPolygon, IlvMapRaster, IlvMapSegmentRing, IlvMapSegmentString, and IlvMapText.