SoReorganizeAction Class Reference

The SoReorganizeAction class reorganizes your scene graph to optimize traversal/rendering. More...

#include <Inventor/actions/SoReorganizeAction.h>

Inheritance diagram for SoReorganizeAction:

Public Member Functions
	SoReorganizeAction (SoSimplifier *simplifier=NULL)
virtual	~SoReorganizeAction (void)
virtual void	apply (const SoPathList &pathlist, SbBool obeysrules=FALSE)
virtual void	apply (SoNode *root)
virtual void	apply (SoPath *path)
SbBool	areIndexArraysMatched (void) const
SbBool	areNormalGenerated (void) const
SbBool	areTexCoordsGenerated (void) const
SbBool	areTriangleStripGenerated (void) const
SbBool	areVPNodesGenerated (void)
void	generateNormals (SbBool onoff)
void	generateTexCoords (SbBool onoff)
void	generateTriangleStrips (SbBool onoff)
void	generateVPNodes (SbBool onoff)
SoSeparator *	getSimplifiedSceneGraph (void) const
SoSimplifier *	getSimplifier (void) const
virtual SoType	getTypeId (void) const
void	matchIndexArrays (SbBool onoff)
Public Member Functions inherited from SoSimplifyAction
	SoSimplifyAction (void)
virtual	~SoSimplifyAction (void)
Public Member Functions inherited from SoAction
virtual	~SoAction (void)
void	apply (SoAction *beingApplied)
const SoPath *	getCurPath (void)
PathCode	getCurPathCode (void) const
virtual SoNode *	getCurPathTail (void)
SoNode *	getNodeAppliedTo (void) const
const SoPathList *	getOriginalPathListAppliedTo (void) const
SoPath *	getPathAppliedTo (void) const
PathCode	getPathCode (int &numindices, const int *&indices)
const SoPathList *	getPathListAppliedTo (void) const
SoState *	getState (void) const
AppliedCode	getWhatAppliedTo (void) const
SbBool	hasTerminated (void) const
virtual void	invalidateState (void)
SbBool	isLastPathListAppliedTo (void) const
virtual SbBool	isOfType (SoType type) const
void	popCurPath (const PathCode prevpathcode)
void	popCurPath (void)
void	popPushCurPath (const int childindex, SoNode *node=NULL)
void	pushCurPath (const int childindex, SoNode *node=NULL)
void	pushCurPath (void)
void	switchToNodeTraversal (SoNode *node)
void	switchToPathTraversal (SoPath *path)
void	traverse (SoNode *const node)
void	usePathCode (int &numindices, const int *&indices)

Static Public Member Functions
static void	addMethod (const SoType type, SoActionMethod method)
static void	enableElement (const SoType type, const int stackindex)
static void	finishReport (void)
static SoType	getClassTypeId (void)
static void	initClass (void)
static void	startReport (const char *msg)
Static Public Member Functions inherited from SoSimplifyAction
static void	addMethod (const SoType type, SoActionMethod method)
static void	enableElement (const SoType type, const int stackindex)
static SoType	getClassTypeId (void)
static void	initClass (void)
Static Public Member Functions inherited from SoAction
static SoType	getClassTypeId (void)
static void	initClass (void)
static void	initClasses (void)
static void	nullAction (SoAction *action, SoNode *node)

Protected Member Functions
virtual void	beginTraversal (SoNode *node)
virtual const SoEnabledElementsList &	getEnabledElements (void) const
Protected Member Functions inherited from SoAction
	SoAction (void)
virtual void	endTraversal (SoNode *node)
void	setTerminated (const SbBool flag)
virtual SbBool	shouldCompactPathList (void) const

Static Protected Member Functions
static SoActionMethodList *	getClassActionMethods (void)
static SoEnabledElementsList *	getClassEnabledElements (void)
Static Protected Member Functions inherited from SoSimplifyAction
static SoActionMethodList *	getClassActionMethods (void)
static SoEnabledElementsList *	getClassEnabledElements (void)
Static Protected Member Functions inherited from SoAction
static SoActionMethodList *	getClassActionMethods (void)
static SoEnabledElementsList *	getClassEnabledElements (void)

Additional Inherited Members
Public Types inherited from SoAction
enum	AppliedCode { NODE = 0 , PATH = 1 , PATH_LIST = 2 }
enum	PathCode { NO_PATH = 0 , IN_PATH = 1 , BELOW_PATH = 2 , OFF_PATH = 3 }
Protected Attributes inherited from SoAction
SoState *	state
SoActionMethodList *	traversalMethods

Detailed Description

The SoReorganizeAction class reorganizes your scene graph to optimize traversal/rendering.

Note. This is work-in-progress. pederb, 2005-04-05.

The code below is an example of a program that applies an SoReorganizeAction on a scene graph, converting all shapes into shapes that can be rendered using vertex array or VBO rendering.

#include <Inventor/SoDB.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/nodes/SoCoordinate3.h>
#include <Inventor/nodes/SoCoordinate4.h>
#include <Inventor/nodes/SoNormal.h>
#include <Inventor/nodes/SoTextureCoordinate2.h>
#include <Inventor/nodes/SoSeparator.h>
#include <Inventor/actions/SoWriteAction.h>
#include <Inventor/actions/SoSearchAction.h>
#include <Inventor/errors/SoDebugError.h>
#include <Inventor/nodes/SoShapeHints.h>
#include <Inventor/SoInput.h>
#include <Inventor/SoOutput.h>
#include <Inventor/SoInteraction.h>
#include <Inventor/actions/SoReorganizeAction.h>
#include <cassert>
#include <cstdio>
 
static void strip_node(SoType type, SoNode * root)
{
  SoSearchAction sa;
  sa.setType(type);
  sa.setSearchingAll(TRUE);
  sa.setInterest(SoSearchAction::ALL);
  sa.apply(root);
 
  SoPathList & pl = sa.getPaths();
  for (int i = 0; i < pl.getLength(); i++) {
    SoFullPath * p = (SoFullPath*) pl[i];
      if (p->getTail()->isOfType(type)) {
        SoGroup * g = (SoGroup*) p->getNodeFromTail(1);
        g->removeChild(p->getIndexFromTail(0));
      }
    }
  sa.reset();
}
 
int
main(int argc, char ** argv )
{
  if (argc < 3) {
    fprintf(stderr,"Usage: reorganize <infile> <outfile> [nostrip]\n");
    return -1;
  }
 
  SbBool strip = TRUE;
  if (argc > 3) {
    if (strcmp(argv[3], "nostrip") == 0) strip = FALSE;
    else {
      fprintf(stderr,"Usage: reorganize <infile> <outfile> [nostrip]\n");
      return -1;
    }
  }
 
  SoDB::init();
  SoInteraction::init();
 
  SoInput input;
  SbBool ok = input.openFile(argv[1]);
  if (!ok) {
    fprintf(stderr,"Unable to open file.\n");
    return -1;
  }
  SoSeparator * root = SoDB::readAll(&input);
 
  SbBool vrml1 = input.isFileVRML1();
  SbBool vrml2 = input.isFileVRML2();
 
  if (vrml2) {
    fprintf(stderr,"VRML2 not supported yet\n");
    return -1;
  }
 
  if (!root) {
    fprintf(stderr,"Unable to read file.\n");
    return -1;
  }
  root->ref();
 
  fprintf(stderr,"Applying SoReorganizeAction...");
  SoReorganizeAction reorg;
  reorg.apply(root);
  fprintf(stderr,"done\n");
 
  SoOutput out;
  if (out.openFile(argv[2])) {
    if (strip) { // strip coord3, texcoord and normal nodes
      fprintf(stderr,"stripping old nodes from scene graph\n");
      strip_node(SoCoordinate3::getClassTypeId(), root);
      strip_node(SoCoordinate4::getClassTypeId(), root);
      strip_node(SoNormal::getClassTypeId(), root);
      strip_node(SoTextureCoordinate2::getClassTypeId(), root);
    }
    fprintf(stderr,"writing target\n");
    SoWriteAction wa(&out);
    wa.apply(root);
  }
  root->unref();
  return 0;
} // main()

Since

Coin 2.5

Constructor & Destructor Documentation

SoReorganizeAction()

SoReorganizeAction::SoReorganizeAction

(

SoSimplifier *

simplifier = NULL

)

A constructor.

~SoReorganizeAction()

SoReorganizeAction::~SoReorganizeAction ( void )

virtual

The destructor.

Member Function Documentation

addMethod()

void SoReorganizeAction::addMethod ( const SoType type, SoActionMethod method )

static

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

apply() [1/3]

void SoReorganizeAction::apply ( const SoPathList & pathlist, SbBool obeysrules = FALSE )

virtual

Applies action to the graphs defined by pathlist. If obeysrules is set to TRUE, pathlist must obey the following four conditions (which is the case for path lists returned from search actions for non-group nodes and path lists returned from picking actions):

All paths must start at the same head node. All paths must be sorted in traversal order. The paths must be unique. No path can continue through the end point of another path.

See also

SoAction::apply(SoPath * path)

Reimplemented from SoSimplifyAction.

apply() [2/3]

void SoReorganizeAction::apply ( SoNode * root )

virtual

Applies the action to the scene graph rooted at root.

Note that you should not apply an action to a node with a zero reference count. The behavior in that case is undefined.

Reimplemented from SoSimplifyAction.

apply() [3/3]

void SoReorganizeAction::apply ( SoPath * path )

virtual

Applies the action to the parts of the graph defined by path.

Note that an SoPath will also contain all nodes that may influence e.g. geometry nodes in the path. So for instance applying an SoGLRenderAction on an SoPath will render that path as expected in the view, where geometry will get its materials, textures, and other appearance settings correctly.

If the path ends in an SoGroup node, the action will also traverse the tail node's children.

Reimplemented from SoSimplifyAction.

beginTraversal()

void SoReorganizeAction::beginTraversal ( SoNode * node )

protectedvirtual

This virtual method is called from SoAction::apply(), and is the entry point for the actual scene graph traversal.

It can be overridden to initialize the action at traversal start, for specific initializations in the action subclasses inheriting SoAction.

Default method just calls traverse(), which any overridden implementation of the method must do too (or call SoAction::beginTraversal()) to trigger the scene graph traversal.

Reimplemented from SoSimplifyAction.

enableElement()

void SoReorganizeAction::enableElement ( const SoType type, const int stackindex )

static

This API member is considered internal to the library, as it is not likely to be of interest to the application programmer.

getClassActionMethods()

SoActionMethodList * SoReorganizeAction::getClassActionMethods ( void )

staticprotected

Returns list of action methods for this class. The enabledElements and methods variables are protected in the original OIV API. This is not such a good idea, since exposed static class member variables is a major grievance with regard to Win32 DLLs. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

getClassEnabledElements()

SoEnabledElementsList * SoReorganizeAction::getClassEnabledElements ( void )

staticprotected

Returns list of enabled elements for this class. The enabledElements and methods variables are protected in the original OIV API. This is not such a good idea, since exposed static class member variables is a major grievance with regard to Win32 DLLs. This function is an extension for Coin, and it is not available in the original SGI Open Inventor v2.1 API.

getClassTypeId()

SoType SoReorganizeAction::getClassTypeId ( void )

static

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

getEnabledElements()

const SoEnabledElementsList & SoReorganizeAction::getEnabledElements ( void ) const

protectedvirtual

Returns list of enabled elements.

Reimplemented from SoSimplifyAction.

getTypeId()

SoType SoReorganizeAction::getTypeId ( void ) const

virtual

Returns the type identification of an object derived from a class inheriting SoAction. This is used for runtime type checking and "downward" casting.

Reimplemented from SoSimplifyAction.

initClass()

void SoReorganizeAction::initClass ( void )

static

Initializes the runtime type system for this class, and sets up the enabled elements and action method list.

---

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

• SoReorganizeAction.h
• SoReorganizeAction.cpp