te::map::AbstractRenderer Class Reference

It renders the objects associated to a layer. More...

#include <AbstractRenderer.h>

Inheritance diagram for te::map::AbstractRenderer:

Public Member Functions
Initializer Methods
Methods related to instantiation and destruction.
	AbstractRenderer ()
	Default Constructor. More...
virtual	~AbstractRenderer ()
	Virtual Destructor. More...
Pure Virtual Methods
Methods that subclasses must implement.
virtual void	draw (AbstractLayer *layer, Canvas *canvas, const te::gm::Envelope &bbox, int srid, const double &scale, bool *cancel)=0
	It draws the layer geographic objects in the given canvas using the SRS informed. More...

Private Member Functions
Copy Constructor and Assignment Operator
Copy constructor and assignment operator not allowed.
	AbstractRenderer (const AbstractRenderer &rhs)
	Copy constructor not allowed. More...
AbstractRenderer &	operator= (const AbstractRenderer &rhs)
	Assignment operator not allowed. More...

Detailed Description

It renders the objects associated to a layer.

The renderer will be responsible for:

• locate/retrieve the objects associated to the layer
• set the canvas with the appropriated style rules to draw the objects
• make use of a canvas to draw the objects

See also

AbstractLayer, Canvas, RendererFactory, FeatureTypeStyleRenderer, CoverageStyleRenderer, DataSetLayerRenderer, QueryLayerRenderer

Definition at line 61 of file AbstractRenderer.h.

Constructor & Destructor Documentation

AbstractRenderer() [1/2]

te::map::AbstractRenderer::AbstractRenderer ( )

inline

Default Constructor.

Definition at line 71 of file AbstractRenderer.h.

~AbstractRenderer()

virtual te::map::AbstractRenderer::~AbstractRenderer ( )

inlinevirtual

Virtual Destructor.

Definition at line 74 of file AbstractRenderer.h.

AbstractRenderer() [2/2]

te::map::AbstractRenderer::AbstractRenderer ( const AbstractRenderer &  rhs )

private

Copy constructor not allowed.

Parameters

rhs	The renderer that would be copied.

Member Function Documentation

draw()

virtual void te::map::AbstractRenderer::draw ( AbstractLayer *  layer, Canvas *  canvas, const te::gm::Envelope &  bbox, int  srid, const double &  scale, bool *  cancel  )

pure virtual

It draws the layer geographic objects in the given canvas using the SRS informed.

The informed bounding box (bbox) is used to constraint the Layer objects to be drawn. The bbox coordinates must be in the Spatial Reference System given by srid.

Parameters

layer	The layer that will be drawn.
canvas	The canvas were the layer objects will be drawn.
bbox	The interest area to render the map.
srid	The SRS to be used to draw the layer objects.
scale	The current scale to draw the layer.

Implemented in te::graph::LayerRenderer, te::map::AbstractLayerRenderer, te::map::QueryLayerRenderer, and te::ws::ogc::wms::WMSLayerRenderer.

operator=()

AbstractRenderer& te::map::AbstractRenderer::operator= ( const AbstractRenderer &  rhs )

private

Assignment operator not allowed.

Parameters

rhs	The renderer whose contents would be assigned to this renderer.

Returns

A reference to this renderer.

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The documentation for this class was generated from the following file:

• /home/castejon/castejon_files/develop/terralib5/git_master/src/terralib/maptools/AbstractRenderer.h