SoTransparencyType - Online Linux Manual Page

Section : 3
Updated : Mon Jan 25 2021
Source : Version 2.5.0
Note : Coin

NAME

SoTransparencyType − The SoTransparencyType

class is a node for setting the transparency type for shapes.

SYNOPSIS

#include <Inventor/nodes/SoTransparencyType​.h>

Inherits SoNode

Public Types

enum Type

{

SCREEN_DOOR

= SoGLRenderAction::SCREEN_DOOR,

ADD

= SoGLRenderAction::ADD,

DELAYED_ADD

= SoGLRenderAction::DELAYED_ADD,

SORTED_OBJECT_ADD

= SoGLRenderAction::SORTED_OBJECT_ADD,

BLEND

= SoGLRenderAction::BLEND,

DELAYED_BLEND

= SoGLRenderAction::DELAYED_BLEND,

SORTED_OBJECT_BLEND

= SoGLRenderAction::SORTED_OBJECT_BLEND,

SORTED_OBJECT_SORTED_TRIANGLE_ADD

SORTED_OBJECT_SORTED_TRIANGLE_BLEND

NONE

= SoGLRenderAction::NONE }

Public Member Functions

virtual SoType

getTypeId

(void) const

SoTransparencyType

(void)

virtual void doAction

(

SoAction

*action)

virtual void GLRender

(

SoGLRenderAction

*action)

virtual void callback

(

SoCallbackAction

*action)

Static Public Member Functions

static SoType

getClassTypeId

(void)

static void initClass

(void)

Public Attributes

SoSFEnum

value

Protected Member Functions

virtual const SoFieldData

getFieldData

(void) const

virtual ~SoTransparencyType

(

)

Static Protected Member Functions

static const SoFieldData

getFieldDataPtr

(void)

Additional Inherited Members

Detailed Description

The SoTransparencyType

class is a node for setting the transparency type for shapes. In earlier versions of Coin/Open Inventor it was only possible to set the transparency mode globally for an entire scene graph, which could be inconvenient if different transparency types was wanted for different shapes.

Here is a screenshot of the different transparency modes used in a single scene.

Be aware that this class is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

FILE FORMAT/DEFAULTS:

TransparencyType { value SCREEN_DOOR }

See also

SoGLRenderAction::TransparencyType

Since

Coin 2.0

Member Enumeration Documentation

enum SoTransparencyType::Type

Enumeration of available transparency types. See documentation in SoGLRenderAction

for a description of the different types.

Constructor & Destructor Documentation

SoTransparencyType::SoTransparencyType (void)

Constructor.

References value.

SoTransparencyType::~SoTransparencyType (

)

 [protected]

 [virtual]

Destructor.

Member Function Documentation

SoType

SoTransparencyType::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

* SoTransparencyType::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 SoTransparencyType::doAction (

SoAction

* action)

 [virtual]

This function performs the typical operation of a node for any action.

Reimplemented from SoNode

References SoAction::getState(), SoOverrideElement::getTransparencyTypeOverride(), SoField::isIgnored(), SoNode::isOverride(), SoOverrideElement::setTransparencyTypeOverride(), and value.

Referenced by callback(), and GLRender().

void SoTransparencyType::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().

void SoTransparencyType::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().

Member Data Documentation

SoSFEnum

SoTransparencyType::value

The transparency type to use for subsequent shape nodes in the scene graph.

Referenced by doAction(), and SoTransparencyType().

Author

Generated automatically by Doxygen for Coin from the source code.

Johanes Gumabo

Data Size : 26,419 byte

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