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nkGraphics::Node Class Reference

Represents a node in a scene graph. More...

Inheritance diagram for nkGraphics::Node:

## Public Member Functions
virtual | ~Node ()
virtual void | setPositionRelative (const nkMaths::Vector &value)
virtual void | setPositionAbsolute (const nkMaths::Vector &value)
virtual void | translateRelative (const nkMaths::Vector &value)
virtual void | translateAbsolute (const nkMaths::Vector &value)
nkMaths::Vector | getPositionRelative () const
nkMaths::Vector | getPositionAbsolute ()
virtual void | setOrientationRelative (const nkMaths::Quaternion &value)
virtual void | setOrientationAbsolute (const nkMaths::Quaternion &value)
virtual void | rotateRelative (const nkMaths::Quaternion &value)
virtual void | rotateAbsolute (const nkMaths::Quaternion &value)
nkMaths::Quaternion | getOrientationRelative () const
nkMaths::Quaternion | getOrientationAbsolute ()
virtual void | setScaleRelative (const nkMaths::Vector &value)
virtual void | setScaleAbsolute (const nkMaths::Vector &value)
virtual void | applyScale (const nkMaths::Vector &value)
nkMaths::Vector | getScaleRelative () const
nkMaths::Vector | getScaleAbsolute ()
void | setRelativeTransform (const nkMaths::Matrix &value)
void | setAbsoluteTransform (const nkMaths::Matrix &value)
nkMaths::Matrix | getRelativeTransform ()
nkMaths::Matrix | getAbsoluteTransform ()
void | updateTransformations ()
void | dispatchDirtyTransform ()
nkMaths::Vector | getAbsoluteUp ()
nkMaths::Vector | getAbsoluteFront ()
nkMaths::Vector | getAbsoluteRight ()
void | setParentNode (Node *parent)
Node * | getParentNode () const
Node * | getChildNode (unsigned int index) const
unsigned int | getNumChildNode () const
void | setName (nkMemory::StringView value)
nkMemory::StringView | getName () const
bool | getHidden () const
void | setHidden (bool value)
void | addEntityToTrack (Entity *entity)
void | stopEntityTracking (Entity *entity)
unsigned int | getTrackedEntityCount () const
Entity * | getTrackedEntity (unsigned int index) const
void | registerListener (NodeChangeListener *listener)
void | unregisterListener (NodeChangeListener *listener)
virtual void | exportClassToTree (nkExport::Node *rootNode) override
virtual void | importClassFromTree (nkExport::Node *rootNode) override
Public Member Functions inherited from nkExport::Exportable
| Exportable () noexcept
virtual | ~Exportable ()

## Static Public Member Functions
static nkMemory::UniquePtr< Node > | create (System *system=nullptr)

## Detailed Description

Represents a node in a scene graph.

The graph can be used whenever transformations of entities are needed.

See NodeManager::createOrRetrieve() or Node::create() for instantiation.

## Constructor & Destructor Documentation

## ◆ ~Node()

virtual nkGraphics::Node::~Node | ( |  | ) |
| virtual

Destructor.

## Member Function Documentation

## ◆ setPositionRelative()

virtual void nkGraphics::Node::setPositionRelative | ( | const nkMaths::Vector & | value | ) |
| virtual

Sets the position of the node, relative to its parent.

Parameters

  value | The position to set.

Reimplemented in nkGraphics::Camera.

## ◆ setPositionAbsolute()

virtual void nkGraphics::Node::setPositionAbsolute | ( | const nkMaths::Vector & | value | ) |
| virtual

Sets the position of the node, absolute in the world.

Parameters

  value | The position to use.

Reimplemented in nkGraphics::Camera.

## ◆ translateRelative()

virtual void nkGraphics::Node::translateRelative | ( | const nkMaths::Vector & | value | ) |
| virtual

Translates the node, relative to its parent.

Parameters

  value | The offset to add.

Reimplemented in nkGraphics::Camera.

## ◆ translateAbsolute()

virtual void nkGraphics::Node::translateAbsolute | ( | const nkMaths::Vector & | value | ) |
| virtual

Translates a node, absolute in the world.

Parameters

  value | The offset to add.

Reimplemented in nkGraphics::Camera.

## ◆ getPositionRelative()

nkMaths::Vector nkGraphics::Node::getPositionRelative | ( |  | ) | const

Returns
  The position of the node, relative to its parent.

## ◆ getPositionAbsolute()

nkMaths::Vector nkGraphics::Node::getPositionAbsolute | ( |  | ) |

Returns
  The position of the node, absolute in the world.

## ◆ setOrientationRelative()

virtual void nkGraphics::Node::setOrientationRelative | ( | const nkMaths::Quaternion & | value | ) |
| virtual

Sets the orientation of a node, relative to its parent.

Parameters

  value | The orientation to set.

Reimplemented in nkGraphics::Camera.

## ◆ setOrientationAbsolute()

virtual void nkGraphics::Node::setOrientationAbsolute | ( | const nkMaths::Quaternion & | value | ) |
| virtual

Sets the orientation of a node, absolute in the world.

Parameters

  value | The orientation to set.

Reimplemented in nkGraphics::Camera.

## ◆ rotateRelative()

virtual void nkGraphics::Node::rotateRelative | ( | const nkMaths::Quaternion & | value | ) |
| virtual

Rotates a node, relative to its parent.

Parameters

  value | The offset to add.

Reimplemented in nkGraphics::Camera.

## ◆ rotateAbsolute()

virtual void nkGraphics::Node::rotateAbsolute | ( | const nkMaths::Quaternion & | value | ) |
| virtual

Rotates a node, absolute in the world.

Parameters

  value | The offset to add.

Reimplemented in nkGraphics::Camera.

## ◆ getOrientationRelative()

nkMaths::Quaternion nkGraphics::Node::getOrientationRelative | ( |  | ) | const

Returns
  The orientation of the node, relative to its parent.

## ◆ getOrientationAbsolute()

nkMaths::Quaternion nkGraphics::Node::getOrientationAbsolute | ( |  | ) |

Returns
  The orientation of the node, absolute in the world.

## ◆ setScaleRelative()

virtual void nkGraphics::Node::setScaleRelative | ( | const nkMaths::Vector & | value | ) |
| virtual

Sets the scale of the node, relative to its parent.

Parameters

  value | The scale to set.

Reimplemented in nkGraphics::Camera.

## ◆ setScaleAbsolute()

virtual void nkGraphics::Node::setScaleAbsolute | ( | const nkMaths::Vector & | value | ) |
| virtual

Sets the scale of the node, absolute in the world.

Parameters

  value | The scale to set.

Reimplemented in nkGraphics::Camera.

## ◆ applyScale()

virtual void nkGraphics::Node::applyScale | ( | const nkMaths::Vector & | value | ) |
| virtual

Scales the node by a factor.

Parameters

  value | The offset to add.

Reimplemented in nkGraphics::Camera.

## ◆ getScaleRelative()

nkMaths::Vector nkGraphics::Node::getScaleRelative | ( |  | ) | const

Returns
  The scale of the node, relative to its parent.

## ◆ getScaleAbsolute()

nkMaths::Vector nkGraphics::Node::getScaleAbsolute | ( |  | ) |

Returns
  The scale of the node, absolute in the world.

## ◆ setRelativeTransform()

void nkGraphics::Node::setRelativeTransform | ( | const nkMaths::Matrix & | value | ) |

Sets the transformation of the node, relative to its parent.

Parameters

  value | The transformation to set.

## ◆ setAbsoluteTransform()

void nkGraphics::Node::setAbsoluteTransform | ( | const nkMaths::Matrix & | value | ) |

Sets the absolute transformation of the node. This will set the relative transformation so that it fits the absolute transformation required.

Parameters

  value | The transformation to set.

## ◆ getRelativeTransform()

nkMaths::Matrix nkGraphics::Node::getRelativeTransform | ( |  | ) |

Returns
  The full transformation of the node, relative to its parent.

## ◆ getAbsoluteTransform()

nkMaths::Matrix nkGraphics::Node::getAbsoluteTransform | ( |  | ) |

Returns
  The full transformation of the node, absolute.

## ◆ updateTransformations()

void nkGraphics::Node::updateTransformations | ( |  | ) |

Updates the transformation of a node. Used internally.

## ◆ dispatchDirtyTransform()

void nkGraphics::Node::dispatchDirtyTransform | ( |  | ) |

Dispatches a dirty transform flag to the children. Used internally.

## ◆ getAbsoluteUp()

nkMaths::Vector nkGraphics::Node::getAbsoluteUp | ( |  | ) |

Returns
  The up vector, absolute in the world.

## ◆ getAbsoluteFront()

nkMaths::Vector nkGraphics::Node::getAbsoluteFront | ( |  | ) |

Returns
  The front vector, absolute in the world.

## ◆ getAbsoluteRight()

nkMaths::Vector nkGraphics::Node::getAbsoluteRight | ( |  | ) |

Returns
  The right vector, absolute in the world.

## ◆ setParentNode()

void nkGraphics::Node::setParentNode | ( | Node * | parent | ) |

Sets the parent node for a given node. A child node will inherit all of its parent tree's transformations before applying its own.

Parameters

  parent | The parent node to set. Can be set to nullptr to detach the node from any parent tree.

## ◆ getParentNode()

Node* nkGraphics::Node::getParentNode | ( |  | ) | const

Returns
  The parent node.

## ◆ getChildNode()

Node* nkGraphics::Node::getChildNode | ( | unsigned int | index | ) | const

Parameters

  index | The index of the child to retrieve.

Returns
  The child node if available, nullptr else.

## ◆ getNumChildNode()

unsigned int nkGraphics::Node::getNumChildNode | ( |  | ) | const

Returns
  The number of children nodes.

## ◆ setName()

void nkGraphics::Node::setName | ( | nkMemory::StringView | value | ) |

Sets the name under which the node should be identified.

Parameters

  value | The name to assign.

## ◆ getName()

nkMemory::StringView nkGraphics::Node::getName | ( |  | ) | const

Returns
  The name of the node.

## ◆ getHidden()

bool nkGraphics::Node::getHidden | ( |  | ) | const

Returns
  Whether the node is hidden from project exporting (true) or not (false).

## ◆ setHidden()

void nkGraphics::Node::setHidden | ( | bool | value | ) |

Sets whether the node should not export itself during a project (resource set) export. This can be used to hide programmatically generated resources from duplicating in the export.

Parameters

  value | Whether the node should be hidden (true) or not (false).

## ◆ addEntityToTrack()

void nkGraphics::Node::addEntityToTrack | ( | Entity * | entity | ) |

Tracks entity for changes. Used internally, in theory external code should not used it. Rather, see Entity::setParentNode().

## ◆ stopEntityTracking()

void nkGraphics::Node::stopEntityTracking | ( | Entity * | entity | ) |

Stops tracking an entity for its changes. Used internally, in theory external code should not used it. Rather, see Entity::setParentNode().

## ◆ getTrackedEntityCount()

unsigned int nkGraphics::Node::getTrackedEntityCount | ( |  | ) | const

Returns
  The number of entities currently tracked by the node.

## ◆ getTrackedEntity()

Entity* nkGraphics::Node::getTrackedEntity | ( | unsigned int | index | ) | const

Parameters

  index | The index of the tracked entity to retrieve.

Returns
  Requested entity if available, nullptr else.

## ◆ registerListener()

void nkGraphics::Node::registerListener | ( | NodeChangeListener * | listener | ) |

Register a listener.

Parameters

  listener | The listener to register.

## ◆ unregisterListener()

void nkGraphics::Node::unregisterListener | ( | NodeChangeListener * | listener | ) |

Unregister a listener.

Parameters

  listener | The listener to unregister.

## ◆ exportClassToTree()

virtual void nkGraphics::Node::exportClassToTree | ( | nkExport::Node * | rootNode | ) |
| override virtual

Exports an item into a tree describing its structure and its data.

Parameters

  rootNode | The node into which the object has to write its related information.

Implements nkExport::Exportable.

Reimplemented in nkGraphics::Camera.

## ◆ importClassFromTree()

virtual void nkGraphics::Node::importClassFromTree | ( | nkExport::Node * | rootNode | ) |
| override virtual

Imports information from a tree which is supposed to describe its structure and data.

Parameters

  rootNode | The root node of the tree holding the information.

Implements nkExport::Exportable.

Reimplemented in nkGraphics::Camera.

## ◆ create()

static nkMemory::UniquePtr<Node> nkGraphics::Node::create | ( | System * | system = `nullptr` | ) |
| static

Creates a standalone resource, linking it to a system, but no manager. This method can be used to allocate a resource and manually manage its lifetime.

Parameters

  system | The system to create the resource into. If left to nullptr, then the Singleton instance will be used.

Returns
  The created resource instance.

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

- Documentation/Headers/NilkinsGraphics/Graph/Node.h