IlvDefaultRasterRenderer Class Reference

This renderer translates a map feature whose geometry is an IlvMapRaster into an IlvZoomableIcon whose colors indicate the value of the raster. More...

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

Inheritance diagram for IlvDefaultRasterRenderer:

Public Member Functions
	IlvDefaultRasterRenderer (IlvDisplay *display, IlvMapColorModel *colorModel, IlBoolean ownerOfModel)
	Creates an instance of a renderer to render raster geometries. More...
	IlvDefaultRasterRenderer (const IlvDefaultRasterRenderer &source)
	Creates a new renderer, copying the specified renderer. More...
IlvGraphic *	makeGraphic (const IlvMapFeature &feature, const IlvMapInfo &targetMapInfo, IlvMapsError &status) const
	Translates an IlvMapFeature into a graphic object. More...
Public Member Functions inherited from IlvFeatureRenderer
virtual IlvFeatureRenderer *	copy () const =0
	Copies the object. More...
IlvDisplay *	getDisplay () const
	Returns the renderer display. More...
IlBoolean	isPersistent () const
	Checks if the renderer can be saved. More...
void	save (IlvOutputFile &file) const
	Saves the object to an IlvOutputFile. More...
virtual void	write (IlvOutputFile &file) const =0
	Writes the renderer to an IlvOutputStream. More...

Static Public Member Functions
static IlvMapsError	BitmapError ()
	The error returned when bitmaps cannot be created. More...
Static Public Member Functions inherited from IlvFeatureRenderer
static IlvFeatureRenderer *	Load (IlvInputFile &file)
	Loads a renderer from an IlvInputFile. More...

Additional Inherited Members
Protected Member Functions inherited from IlvFeatureRenderer
	IlvFeatureRenderer (IlvDisplay *display, IlBoolean persistent=IlTrue)
	Constructor. More...

Detailed Description

This renderer translates a map feature whose geometry is an IlvMapRaster into an IlvZoomableIcon whose colors indicate the value of the raster.

The translation from raster values to colors is performed by an IlvMapColorModel. Library: ilvmaps

Constructor & Destructor Documentation

IlvDefaultRasterRenderer::IlvDefaultRasterRenderer	(	IlvDisplay *	display,
		IlvMapColorModel *	colorModel,
		IlBoolean	ownerOfModel
	)

Creates an instance of a renderer to render raster geometries.

Parameters

display	The display for which graphics are rendered.
colorModel	The colormodel used to translate raster values into colors.
ownerOfModel	If IlTrue, the new owner of the colormodel is the renderer. The IlvDefaultRasterRenderer instance will delete the colorModel in its destructor.

IlvDefaultRasterRenderer::IlvDefaultRasterRenderer

(

const IlvDefaultRasterRenderer &

source

)

Creates a new renderer, copying the specified renderer.

Parameters

source

The object to be copied.

Member Function Documentation

static IlvMapsError IlvDefaultRasterRenderer::BitmapError ( )

static

The error returned when bitmaps cannot be created.

Returns

The error returned when bitmaps cannot be created.

IlvGraphic* IlvDefaultRasterRenderer::makeGraphic ( const IlvMapFeature &  feature, const IlvMapInfo &  targetMapInfo, IlvMapsError &  status  ) const

virtual

Translates an IlvMapFeature into a graphic object.

Warning

This renderer handles projection conversion.

Parameters

feature	The map feature to be translated.
targetMapInfo	The target map info.
status	Set to an error code if the renderer cannot process the map feature (often because the renderer does not support the feature geometry, but it can also indicate that a projection error occurred).

Returns

The IlvGraphic object or a null pointer if a severe error occurred.

Implements IlvFeatureRenderer.