IlvDefaultAreaRenderer Class Reference

This renderer translates a map feature whose geometry is a predefined subclass of IlvMapArea into an IlvMapGeneralPath or into an IlvGraphicSet or IlvMapGeneralPath if the geometry is an IlvMapMultiArea. More...

#include <ilviews/maps/rendering/areardr.h>

Inheritance diagram for IlvDefaultAreaRenderer:

List of all members.

Public Member Functions
	IlvDefaultAreaRenderer (const IlvDefaultAreaRenderer &source)
	Copies this renderer.
	IlvDefaultAreaRenderer (IlvDisplay *display)
	Initializes an instance of the renderer.
virtual IlvFeatureRenderer *	copy () const
	Copies the object.
IlvMapAreaRenderingStyle *	getAreaRenderingStyle () const
	Returns the area rendering style.
virtual IlvGraphic *	makeGraphic (const IlvMapFeature &feature, const IlvMapInfo &targetMapInfo, IlvMapsError &status) const
	Translates an IlvMapFeature into a graphic object.
void	setAreaRenderingStyle (IlvMapAreaRenderingStyle *areaRenderingStyle)
	Sets the rendering style for the areas.
virtual void	write (IlvOutputFile &) const
	Writes the renderer to an IlvOutputStream.

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Detailed Description

This renderer translates a map feature whose geometry is a predefined subclass of IlvMapArea into an IlvMapGeneralPath or into an IlvGraphicSet or IlvMapGeneralPath if the geometry is an IlvMapMultiArea.

Library: ilvmaps

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Constructor & Destructor Documentation

IlvDefaultAreaRenderer::IlvDefaultAreaRenderer

(

IlvDisplay *

display

)

Initializes an instance of the renderer.

Parameters:

display

The display used to create the graphic objects.

IlvDefaultAreaRenderer::IlvDefaultAreaRenderer

(

const IlvDefaultAreaRenderer &

source

)

Copies this renderer.

Parameters:

source

The object to be copied.

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Member Function Documentation

virtual IlvFeatureRenderer* IlvDefaultAreaRenderer::copy

(

)

const [virtual]

Copies the object.

Returns:

A copy of this IlvFeatureRenderer.

Implements IlvFeatureRenderer.

IlvMapAreaRenderingStyle* IlvDefaultAreaRenderer::getAreaRenderingStyle

(

)

const

Returns the area rendering style.

Returns:

The IlvMapAreaRenderingStyle of this renderer.

virtual IlvGraphic* IlvDefaultAreaRenderer::makeGraphic	(	const IlvMapFeature &	feature,
		const IlvMapInfo &	targetMapInfo,
		IlvMapsError &	status
	)			const [virtual]

Translates an IlvMapFeature into a graphic object.

If the targetMapInfo has a non-null projection, or a projection that is not an instance of IlvUnknownProjection, the graphic object is projected to the projection system of targetMapInfo. Otherwise, only the map adapter of targetMapInfo is used to convert the feature coordinate into the manager coordinate system.

Parameters:

	feature	The map feature to be translated.
	targetMapInfo	This parameter specifies the projection in which the graphic object must be returned. If this projection is not defined (targetMapInfo.getProjection() is NULL), the graphic object is returned to the projection of the map feature (only the map adapter is used)
	status	Is set to an error code if the renderer cannot process the map feature (most of the time, because the renderer does not support the feature geometry, but it can also indicate that a projection error occurred).

Returns:

An IlvGraphic or a null pointer if a severe error occurred.

Implements IlvFeatureRenderer.

void IlvDefaultAreaRenderer::setAreaRenderingStyle

(

IlvMapAreaRenderingStyle *

areaRenderingStyle

)

Sets the rendering style for the areas.

Parameters:

areaRenderingStyle

The area rendering style. This object can be shared by other objects.

virtual void IlvDefaultAreaRenderer::write

(

IlvOutputFile &

file

)

const [virtual]

Writes the renderer to an IlvOutputStream.

This function must be reimplemented by the subclasses of IlvFeatureRenderer, but it should not be called directly by the application. For more information about subclassing an IlvFeatureRenderer, refer to the User Manual of Rogue Wave Views Maps.

Parameters:

file

The output file.

See also:

save

Implements IlvFeatureRenderer.