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The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:. More...
#include <Inventor/VRMLnodes/SoVRMLNormal.h>
Public Member Functions | |
virtual SoType | getTypeId (void) const |
SoVRMLNormal (void) | |
virtual void | doAction (SoAction *action) |
virtual void | GLRender (SoGLRenderAction *action) |
virtual void | callback (SoCallbackAction *action) |
virtual void | pick (SoPickAction *action) |
virtual void | getPrimitiveCount (SoGetPrimitiveCountAction *action) |
Static Public Member Functions | |
static SoType | getClassTypeId (void) |
static void | initClass (void) |
Public Attributes | |
SoMFVec3f | vector |
Protected Member Functions | |
virtual const SoFieldData * | getFieldData (void) const |
virtual | ~SoVRMLNormal () |
Static Protected Member Functions | |
static const SoFieldData ** | getFieldDataPtr (void) |
The detailed class documentation is taken verbatim from the VRML97 standard (ISO/IEC 14772-1:1997). It is copyright The Web3D Consortium, and is used by permission of the Consortium:.
Normal { exposedField MFVec3f vector [] # (-,) }
This node defines a set of 3D surface normal vectors to be used in the vector field of some geometry nodes (e.g., SoVRMLIndexedFaceSet and SoVRMLElevationGrid). This node contains one multiple-valued field that contains the normal vectors. Normals shall be of unit length.
SoVRMLNormal::SoVRMLNormal | ( | void | ) |
Constructor.
References vector.
SoVRMLNormal::~SoVRMLNormal | ( | ) | [protected, virtual] |
Destructor.
SoType SoVRMLNormal::getClassTypeId | ( | void | ) | [static] |
SoType SoVRMLNormal::getTypeId | ( | void | ) | const [virtual] |
Returns the type identification of an object derived from a class inheriting SoBase. This is used for run-time type checking and "downward" casting.
Usage example:
void foo(SoNode * node) { if (node->getTypeId() == SoFile::getClassTypeId()) { SoFile * filenode = (SoFile *)node; // safe downward cast, knows the type } else if (node->getTypeId().isOfType(SoGroup::getClassTypeId())) { SoGroup * group = (SoGroup *)node; // safe downward cast, knows the type } }
For application programmers wanting to extend the library with new nodes, engines, nodekits, draggers or others: this method needs to be overridden in all subclasses. This is typically done as part of setting up the full type system for extension classes, which is usually accomplished by using the pre-defined macros available through for instance Inventor/nodes/SoSubNode.h (SO_NODE_INIT_CLASS and SO_NODE_CONSTRUCTOR for node classes), Inventor/engines/SoSubEngine.h (for engine classes) and so on.
For more information on writing Coin extensions, see the class documentation of the toplevel superclasses for the various class groups.
Implements SoBase.
const SoFieldData ** SoVRMLNormal::getFieldDataPtr | ( | void | ) | [static, protected] |
This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.
Reimplemented from SoNode.
const SoFieldData * SoVRMLNormal::getFieldData | ( | void | ) | const [protected, virtual] |
Returns a pointer to the class-wide field data storage object for this instance. If no fields are present, returns NULL
.
Reimplemented from SoFieldContainer.
void SoVRMLNormal::initClass | ( | void | ) | [static] |
Sets up initialization for data common to all instances of this class, like submitting necessary information to the Coin type system.
Reimplemented from SoNode.
void SoVRMLNormal::doAction | ( | SoAction * | action | ) | [virtual] |
This function performs the typical operation of a node for any action.
Reimplemented from SoNode.
References SoMField::getNum(), SoAction::getState(), SoMFVec3f::getValues(), SoFieldContainer::set(), and vector.
Referenced by callback(), getPrimitiveCount(), GLRender(), and pick().
void SoVRMLNormal::GLRender | ( | SoGLRenderAction * | action | ) | [virtual] |
Action method for the SoGLRenderAction.
This is called during rendering traversals. Nodes influencing the rendering state in any way or who wants to throw geometry primitives at OpenGL overrides this method.
Reimplemented from SoNode.
References doAction(), SoNode::getNodeId(), SoMField::getNum(), SoAction::getState(), SoMFVec3f::getValues(), SoBase::staticDataLock(), SoBase::staticDataUnlock(), and vector.
void SoVRMLNormal::callback | ( | SoCallbackAction * | action | ) | [virtual] |
Action method for SoCallbackAction.
Simply updates the state according to how the node behaves for the render action, so the application programmer can use the SoCallbackAction for extracting information about the scene graph.
Reimplemented from SoNode.
References doAction().
void SoVRMLNormal::pick | ( | SoPickAction * | action | ) | [virtual] |
Action method for SoPickAction.
Does common processing for SoPickAction action instances.
Reimplemented from SoNode.
References doAction().
void SoVRMLNormal::getPrimitiveCount | ( | SoGetPrimitiveCountAction * | action | ) | [virtual] |
Action method for the SoGetPrimitiveCountAction.
Calculates the number of triangle, line segment and point primitives for the node and adds these to the counters of the action.
Nodes influencing how geometry nodes calculates their primitive count also overrides this method to change the relevant state variables.
Reimplemented from SoNode.
References doAction().
The normal vectors. Empty by default.
Referenced by doAction(), SoVRMLElevationGrid::generatePrimitives(), SoVRMLVertexShape::getVertexData(), GLRender(), SoVRMLElevationGrid::GLRender(), and SoVRMLNormal().
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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