man SoPointLight (Fonctions bibliothèques) -

NAME

SoPointLight -

SYNOPSIS



#include <Inventor/nodes/SoPointLight.h>

Inherits SoLight.

Inherited by SoPointLightManip.

Detailed Description

The SoPointLight class is a node type for light sources.

Pointlights emits light equally in all directions from a specified 3D location.

See also documentation of parent class for important information regarding light sources in general.

FILE FORMAT/DEFAULTS: 

    PointLight {
        on TRUE
        intensity 1
        color 1 1 1
        location 0 0 1
    }

Public Member Functions

virtual SoType getTypeId (void) const

SoPointLight (void)

virtual void GLRender (SoGLRenderAction *action)

Static Public Member Functions

static SoType getClassTypeId (void)

static void initClass (void)

Public Attributes

SoSFVec3f location

Protected Member Functions

virtual const SoFieldData * getFieldData (void) const

virtual ~SoPointLight ()

Static Protected Member Functions

static const SoFieldData ** getFieldDataPtr (void)

Constructor & Destructor Documentation

SoPointLight::SoPointLight (void)

Constructor.

SoPointLight::~SoPointLight () [protected, virtual]

Destructor.

Member Function Documentation

SoType SoPointLight::getClassTypeId (void) [static]

This static method returns the SoType object associated with objects of this class.

Reimplemented from SoLight.

Reimplemented in SoPointLightManip.

SoType SoPointLight::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.

Reimplemented from SoLight.

Reimplemented in SoPointLightManip.

const SoFieldData ** SoPointLight::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 SoLight.

Reimplemented in SoPointLightManip.

const SoFieldData * SoPointLight::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 SoLight.

Reimplemented in SoPointLightManip.

void SoPointLight::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 SoLight.

Reimplemented in SoPointLightManip.

void SoPointLight::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.

Reimplemented in SoPointLightManip.

Member Data Documentation

SoSFVec3f SoPointLight::location

3D position of lightsource. Default value is <0, 0, 1>.

Author

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