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:

Public Member Functions
virtual IlvMapGeometry *	copy () const =0
	Returns a copy of the object. More...
virtual IlvClassInfo *	getClassInfo () const =0
	Returns the IlvClassInfo of the instance. More...
virtual const IlvMapGeometry *	getSubElement (IlUInt index) const =0
	Returns a sub element of a collection geometry. More...
virtual IlUInt	getSubElementCount () const =0
	Returns the number of elements contained in the geometry if the geometry is a collection. More...
virtual IlBoolean	isCollection () const =0
	Checks if this geometry is a collection of other geometries. More...

Static Public Member Functions
static IlvClassInfo *	ClassInfo ()
	Returns the class info. More...

Protected Member Functions
	IlvMapGeometry ()
	Constructor. More...

Detailed Description

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

Library: ilvmaps

The IlvMapGeometry classes represent the shape of the map features.

The instances of the predefined subclasses of IlvMapGeometry can be rendered by an IlvDefaultFeatureRenderer.

Constructor & Destructor Documentation

IlvMapGeometry()

IlvMapGeometry::IlvMapGeometry ( )

protected

Constructor.

Initializes an instance of the class.

Member Function Documentation

ClassInfo()

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.

copy()

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

getClassInfo()

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

getSubElement()

virtual const IlvMapGeometry* IlvMapGeometry::getSubElement ( IlUInt  index ) const

pure virtual

Returns a sub element of a collection geometry.

Parameters

index

The index of the sub-geometry to be retrieved.

Returns

The sub element of index index if the geometry is a collection or 0 if it is not.

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

getSubElementCount()

virtual IlUInt IlvMapGeometry::getSubElementCount ( ) const

pure virtual

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

Returns

The number of elements contained in the geometry if the geometry is a collection. If it is not, this method returns 0.

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

isCollection()

virtual IlBoolean IlvMapGeometry::isCollection ( ) const

pure virtual

Checks if this 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 IlvMapText, IlvMapSegmentString, IlvMapSegmentRing, IlvMapRaster, IlvMapPolygon, IlvMapPoint, IlvMapMultiPoint, IlvMapMultiCurve, IlvMapMultiArea, IlvMapLinearSegment, IlvMapImage, IlvMapGeometryCollection, IlvMapCircularRing, IlvMapCircle, and IlvMapArcSegment.