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SoReorganizeAction Class Reference

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

#include <Inventor/actions/SoReorganizeAction.h>

Inheritance diagram for SoReorganizeAction:
SoSimplifyAction SoAction

Public Member Functions

virtual SoType getTypeId (void) const
 
 SoReorganizeAction (SoSimplifier *simplifier=NULL)
 
virtual ~SoReorganizeAction (void)
 
SoSeparatorgetSimplifiedSceneGraph (void) const
 
void generateNormals (SbBool onoff)
 
SbBool areNormalGenerated (void) const
 
void generateTriangleStrips (SbBool onoff)
 
SbBool areTriangleStripGenerated (void) const
 
void generateTexCoords (SbBool onoff)
 
SbBool areTexCoordsGenerated (void) const
 
void generateVPNodes (SbBool onoff)
 
SbBool areVPNodesGenerated (void)
 
void matchIndexArrays (SbBool onoff)
 
SbBool areIndexArraysMatched (void) const
 
SoSimplifier * getSimplifier (void) const
 
virtual void apply (SoNode *root)
 
virtual void apply (SoPath *path)
 
virtual void apply (const SoPathList &pathlist, SbBool obeysrules=FALSE)
 
- Public Member Functions inherited from SoSimplifyAction
 SoSimplifyAction (void)
 
virtual ~SoSimplifyAction (void)
 
- Public Member Functions inherited from SoAction
virtual ~SoAction (void)
 
virtual SbBool isOfType (SoType type) const
 
void apply (SoAction *beingApplied)
 
virtual void invalidateState (void)
 
AppliedCode getWhatAppliedTo (void) const
 
SoNodegetNodeAppliedTo (void) const
 
SoPathgetPathAppliedTo (void) const
 
const SoPathListgetPathListAppliedTo (void) const
 
const SoPathListgetOriginalPathListAppliedTo (void) const
 
SbBool isLastPathListAppliedTo (void) const
 
PathCode getPathCode (int &numindices, const int *&indices)
 
void traverse (SoNode *const node)
 
SbBool hasTerminated (void) const
 
const SoPathgetCurPath (void)
 
SoStategetState (void) const
 
PathCode getCurPathCode (void) const
 
virtual SoNodegetCurPathTail (void)
 
void usePathCode (int &numindices, const int *&indices)
 
void pushCurPath (const int childindex, SoNode *node=NULL)
 
void popCurPath (const PathCode prevpathcode)
 
void pushCurPath (void)
 
void popPushCurPath (const int childindex, SoNode *node=NULL)
 
void popCurPath (void)
 
void switchToPathTraversal (SoPath *path)
 
void switchToNodeTraversal (SoNode *node)
 

Static Public Member Functions

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

Protected Member Functions

virtual const SoEnabledElementsListgetEnabledElements (void) const
 
virtual void beginTraversal (SoNode *node)
 
- 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 SoEnabledElementsListgetClassEnabledElements (void)
 
static SoActionMethodListgetClassActionMethods (void)
 
- Static Protected Member Functions inherited from SoSimplifyAction
static SoEnabledElementsListgetClassEnabledElements (void)
 
static SoActionMethodListgetClassActionMethods (void)
 
- Static Protected Member Functions inherited from SoAction
static SoEnabledElementsListgetClassEnabledElements (void)
 
static SoActionMethodListgetClassActionMethods (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
SoStatestate
 
SoActionMethodListtraversalMethods
 

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/SoInteraction.h>
#include <Inventor/actions/SoReorganizeAction.h>
#include <cassert>
#include <cstdio>
static void strip_node(SoType type, SoNode * root)
{
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)) {
}
}
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;
}
}
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...");
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

◆ getTypeId()

SoType SoReorganizeAction::getTypeId ( void  ) const
virtual

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

Usage example:

void bar(SoAction * action)
{
if (action->getTypeId() == SoGLRenderAction::getClassTypeId()) {
// safe downward cast, know the type
SoGLRenderAction * glrender = (SoGLRenderAction *)action;
}
return; // ignore if not render action
}

For application programmers wanting to extend the library with new actions: 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 predefined macros available through Inventor/nodes/SoSubAction.h: SO_ACTION_SOURCE, SO_ACTION_INIT_CLASS and SO_ACTION_CONSTRUCTOR.

For more information on writing Coin extensions, see the SoAction class documentation.

Returns the actual type id of an object derived from a class inheriting SoAction. Needs to be overridden in all subclasses.

Reimplemented from SoSimplifyAction.

◆ 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.

◆ 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.

◆ getEnabledElements()

const SoEnabledElementsList & SoReorganizeAction::getEnabledElements ( void  ) const
protectedvirtual

Returns a list of the elements used by action instances of this class upon traversal operations.

Reimplemented from SoSimplifyAction.

◆ apply() [1/3]

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() [2/3]

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.

◆ apply() [3/3]

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.

◆ 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.


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