ACG::SceneGraph Namespace Reference

Namespaces
namespace	DrawModes
Classes
class	QtManipulatorNode
class	QtTranslationManipulatorNode
class	BaseNode
class	BoundingBoxNode
class	CartesianClippingNode
class	ClippingNode
class	CoordFrameNode
class	CoordsysNode
class	EnvMapNode
class	GlutPrimitiveNode
class	GridNode
class	LightSourceNode
class	LineNode
class	ManipulatorNode
class	Material2Node
class	MaterialNode
class	MeshNodeT
class	OBJNode
class	PlaneNode
class	PointNode
class	PolyLineNodeT
class	QuadNode
struct	enable_if
struct	enable_if< false, T >
class	MetaAction
class	BoundingBoxAction
class	FindNodeAction
class	CollectDrawModesAction
class	CollectActiveDrawModesAction
class	SetDrawModesAction
class	DrawAction
class	PickAction
class	MouseEventAction
class	CheckDirtyAction
class	SeparatorNode
class	ShaderNode
class	SliceNode
class	StatusNodeT
struct	StatusModT
struct	SelectionModT
class	SelectionNodeT
struct	LockModT
class	LockNodeT
class	StencilRefNode
class	SwitchNode
class	Texture3DNode
class	TextureNode
class	TrackballNode
class	TransformNode
class	TranslationManipulatorNode
class	TriangleNode
class	TriStripNodeT
Enumerations
enum	PickTarget {   PICK_CELL, PICK_FACE, PICK_EDGE, PICK_VERTEX,   PICK_ANYTHING, PICK_FRONT_EDGE, PICK_FRONT_VERTEX }
	What target to use for picking. More...
Functions
const Vec4f	cylinder_color (0.8, 0.4, 0.4, 1.0)
const Vec4f	sphere_color (0.8, 0.4, 0.4, 1.0)
const Vec4f	select_color (1.0, 0.1, 0.1, 1.0)
BaseNode *	find_node (BaseNode *_root, unsigned int _node_idx)
template<typename Action >
enable_if<!has_enter< Action, void(Action::*)(BaseNode *) > ::value, void >::type	if_has_enter (Action &, BaseNode *)
template<typename Action >
enable_if<!has_enter< Action, void(Action::*)(BaseNode *) > ::value, void >::type	if_has_leave (Action &, BaseNode *)
template<class Action >
void	traverse (BaseNode *_node, Action &_action)
template<class Action >
void	traverse (BaseNode *_node, Action &_action, GLState &_state, unsigned int _drawmode=DrawModes::DEFAULT)
Variables
const float	SCALE_CONST = 5.0
enable_if< has_enter< Action, void(Action::*)(BaseNode *) > ::value, void >::typ	if_has_enter )(Action &_action, BaseNode *_node)
enable_if< has_leave< Action, void(Action::*)(BaseNode *) > ::value, void >::typ	if_has_leave )(Action &_action, BaseNode *_node)
const Vec4f	colors [4][6]

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Detailed Description

This namespace holds the ACG scene graph, all its nodes and helpers.

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Enumeration Type Documentation

enum ACG::SceneGraph::PickTarget

What target to use for picking.

Enumerator:

PICK_CELL	picks faces (may not be implemented for all nodes)
PICK_FACE	picks faces (should be implemented for all nodes)
PICK_EDGE	picks edges (may not be implemented for all nodes)
PICK_VERTEX	picks verices (may not be implemented for all nodes)
PICK_ANYTHING	pick any of the prior targets (should be implemented for all nodes)
PICK_FRONT_EDGE	picks only visible front edges (may not be implemented for all nodes)
PICK_FRONT_VERTEX	picks only visible front verices (may not be implemented for all nodes)

Definition at line 85 of file BaseNode.hh.

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Function Documentation

ACGDLLEXPORT BaseNode * ACG::SceneGraph::find_node	(	BaseNode *	_root,
		unsigned int	_node_idx
	)

Traverse scenegraph starting at _root, looking for a node whose id is _node_idx. Returns 0 if node wasn't found.

Referenced by CoreWidget::updatePopupMenu().

template<class Action >

void ACG::SceneGraph::traverse	(	BaseNode *	_node,
		Action &	_action,
		GLState &	_state,
		unsigned int	_drawmode = DrawModes::DEFAULT
	)			[inline]

Traverse the scenegraph starting at the node _node and apply the action action to each node. When arriving at a node, its BaseNode::enter() function is called, then _action is applied and the node's children are traversed. After that the BaseNode::leave() method is called.

See also:

ACG::SceneGraph::BaseNode

Definition at line 228 of file SceneGraph.hh.

References traverse().

template<class Action >

void ACG::SceneGraph::traverse	(	BaseNode *	_node,
		Action &	_action
	)			[inline]

Traverse the scenegraph starting at the node _node and apply the action _action to each node. This traversal function will call the enter/leave functions of the action if they have been implemented.

Definition at line 133 of file SceneGraph.hh.

References ACG::SceneGraph::BaseNode::childrenBegin(), ACG::SceneGraph::BaseNode::childrenEnd(), ACG::SceneGraph::BaseNode::ChildrenFirst, ACG::SceneGraph::BaseNode::HideChildren, ACG::SceneGraph::BaseNode::HideNode, ACG::SceneGraph::BaseNode::HideSubtree, ACG::SceneGraph::BaseNode::NodeFirst, ACG::SceneGraph::BaseNode::SecondPass, ACG::SceneGraph::BaseNode::status(), and ACG::SceneGraph::BaseNode::traverseMode().

Referenced by Core::checkScenegraphDirty(), ACG::SceneGraph::BoundingBoxNode::draw(), BaseObjectData::getBoundingBox(), ACG::QtWidgets::QtBaseViewer::pick(), glViewer::pick_region(), glViewer::pickColor(), glViewer::pickGL(), ACG::QtWidgets::QtBaseViewer::sceneGraph(), glViewer::sceneGraph(), CoreWidget::slotUpdateGlobalDrawMenu(), CoreWidget::slotUpdateViewerDrawMenu(), traverse(), and ACG::SceneGraph::CoordFrameNode::update_bounding_box().

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Variable Documentation

const Vec4f ACG::SceneGraph::colors[4][6]

Initial value:

 {
  
  {
    
    Vec4f(0.2,0.2,0.2,1.0), Vec4f(0.5,0.5,0.5,1.0), Vec4f(0.8,0.8,0.8,1.0),
    
    Vec4f(0.2,0.2,0.2,0.2), Vec4f(0.5,0.5,0.5,0.4), Vec4f(0.8,0.8,0.8,0.6)
  },
  
  {
    
    Vec4f(0.2,0.0,0.0,1.0), Vec4f(0.5,0.0,0.0,1.0), Vec4f(0.8,0.0,0.0,1.0),
    
    Vec4f(0.3,0.1,0.1,0.2), Vec4f(0.5,0.2,0.2,0.4), Vec4f(0.8,0.4,0.4,0.6)
  },
  
  {
    
    Vec4f(0.0,0.2,0.0,1.0), Vec4f(0.0,0.5,0.0,1.0), Vec4f(0.0,0.8,0.0,1.0),
    
    Vec4f(0.1,0.3,0.1,0.2), Vec4f(0.2,0.5,0.2,0.4), Vec4f(0.4,0.8,0.4,0.6)
  },
  
  {
    
    Vec4f(0.0,0.0,0.2,1.0), Vec4f(0.0,0.0,0.5,1.0), Vec4f(0.0,0.0,0.8,1.0),
    
    Vec4f(0.1,0.1,0.3,0.2), Vec4f(0.2,0.2,0.5,0.4), Vec4f(0.4,0.4,0.8,0.6)
  }
}

Definition at line 82 of file TranslationManipulatorNode.cc.