LsgNode Struct Reference

Scene graph hierarchy base class. More...

#include <node.h>

Collaboration diagram for LsgNode:

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Data Fields
LsgObject	super
LsgBBox *	bbox
int	dirty
void(*	clean )(LsgNode *self)
void(*	update )(LsgNode *self, float now)
void(*	display )(LsgNode *self, LsgFrustum *frustum)
int(*	collide )(LsgNode *self, Vertex v, Vertex nearest)

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Detailed Description

Scene graph hierarchy base class.

Abstract base class for the scene graph class hierarchy.

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Field Documentation

int LsgNode::dirty

Flag to indicate a changed boundig box. Parents should check this flag after calling update and update their own bounding boxes if necessary.

void(* LsgNode::clean)(LsgNode* self)

Mark this node as having any changes processed. Call after running update to ensure later calls to update don't have process to reevaluate unchanged nodes. Parameters: self  The instance variable

void(* LsgNode::update)(LsgNode* self, float now)

Update this node to accommodate to passingtime. Parameters: self  The instance variable now  The current time

void(* LsgNode::display)(LsgNode* self, LsgFrustum* frustum)

Display this node. Parameters: self  The instance variable frustum  The viewing frustum transformed to the local coordinate system

int(* LsgNode::collide)(LsgNode* self, Vertex v, Vertex nearest)

Check for collision and calculate nearest vertex if asked for. Parameters: self  The instance variable v  Some vertex nearest  The buffer to store the vertex nearest to v that would cause a collision. May be NULL to indicate that the computation is not neccessary. Returns: 1 if the vertex v collides with the node, 0 otherwise

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

• node.h

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(c) 2003, by Enno Cramer
generated on 9 Jul 2003
lescegra - doxygen