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The SoIndexedShape class is the superclass for all indexed vertex shapes.This is an abstract class which contains storage for four fields for indices to coordinates, normals, materials and texture coordinates for it's subclasses. More...
#include <Inventor/nodes/SoIndexedShape.h>
Static Public Member Functions | |
static void | initClass (void) |
Public Attributes | |
SoMFInt32 | coordIndex |
SoMFInt32 | materialIndex |
SoMFInt32 | normalIndex |
SoMFInt32 | textureCoordIndex |
Protected Member Functions | |
SoIndexedShape (void) | |
virtual | ~SoIndexedShape () |
virtual void | computeBBox (SoAction *action, SbBox3f &box, SbVec3f ¢er) |
int | getNumVerts (const int startCoord) |
void | setupIndices (const int numParts, const int numFaces, const SbBool needNormals, const SbBool needTexCoords) |
const int32_t * | getNormalIndices (void) |
const int32_t * | getColorIndices (void) |
const int32_t * | getTexCoordIndices (void) |
SbBool | getVertexData (SoState *state, const SoCoordinateElement *&coords, const SbVec3f *&normals, const int32_t *&cindices, const int32_t *&nindices, const int32_t *&tindices, const int32_t *&mindices, int &numcindices, const SbBool needNormals, SbBool &normalCacheUsed) |
Static Protected Member Functions | |
static SbBool | areTexCoordsIndexed (SoAction *action) |
The SoIndexedShape class is the superclass for all indexed vertex shapes.
This is an abstract class which contains storage for four fields for indices to coordinates, normals, materials and texture coordinates for it's subclasses.
SoIndexedShape::SoIndexedShape | ( | void | ) | [protected] |
Constructor.
References coordIndex, materialIndex, normalIndex, and textureCoordIndex.
SoIndexedShape::~SoIndexedShape | ( | ) | [protected, virtual] |
Destructor.
void SoIndexedShape::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 SoVertexShape.
Reimplemented in SoIndexedFaceSet, SoIndexedLineSet, and SoIndexedTriangleStripSet.
void SoIndexedShape::computeBBox | ( | SoAction * | action, |
SbBox3f & | box, | ||
SbVec3f & | center | ||
) | [protected, virtual] |
Implemented by SoShape subclasses to let the SoShape superclass know the exact size and weighted center point of the shape's bounding box.
The bounding box and center point should be calculated and returned in the local coordinate system.
The method implements action behavior for shape nodes for SoGetBoundingBoxAction. It is invoked from SoShape::getBoundingBox(). (Subclasses should not override SoNode::getBoundingBox().)
The box parameter sent in is guaranteed to be an empty box, while center is undefined upon function entry.
Implements SoShape.
References coordIndex, SbBox3f::extendBy(), SoNode::getClassTypeId(), SoMField::getNum(), SbVec4f::getReal(), SoAction::getState(), SoMFInt32::getValues(), SoMFVec3f::getValues(), SbBox3f::isEmpty(), SoBase::isOfType(), SbVec3f::setValue(), SoVertexProperty::vertex, and SoVertexShape::vertexProperty.
int SoIndexedShape::getNumVerts | ( | const int | startCoord | ) | [protected] |
Starting at index position startCoord, returns the number of indices until either the end of index array or a separator index (-1).
References coordIndex, SoMField::getNum(), and SoMFInt32::getValues().
void SoIndexedShape::setupIndices | ( | const int | numParts, |
const int | numFaces, | ||
const SbBool | needNormals, | ||
const SbBool | needTexCoords | ||
) | [protected] |
Not implemented. Probably only used for internal purposes in SGI's original Open Inventor, which means it should have been private.
Let us know if you need this method for any code you are porting and we'll look into implement it properly.
const int32_t * SoIndexedShape::getNormalIndices | ( | void | ) | [protected] |
Not implemented. Probably only used for internal purposes in SGI's original Open Inventor, which means it should have been private.
Let us know if you need this method for any code you are porting and we'll look into implement it properly.
const int32_t * SoIndexedShape::getColorIndices | ( | void | ) | [protected] |
Not implemented. Probably only used for internal purposes in SGI's original Open Inventor, which means it should have been private.
Let us know if you need this method for any code you are porting and we'll look into implement it properly.
const int32_t * SoIndexedShape::getTexCoordIndices | ( | void | ) | [protected] |
Not implemented. Probably only used for internal purposes in SGI's original Open Inventor, which means it should have been private.
Let us know if you need this method for any code you are porting and we'll look into implement it properly.
SbBool SoIndexedShape::areTexCoordsIndexed | ( | SoAction * | action | ) | [static, protected] |
Returns whether texture coordinates should be indexed or not.
References SoFieldContainer::get(), and SoAction::getState().
SbBool SoIndexedShape::getVertexData | ( | SoState * | state, |
const SoCoordinateElement *& | coords, | ||
const SbVec3f *& | normals, | ||
const int32_t *& | cindices, | ||
const int32_t *& | nindices, | ||
const int32_t *& | tindices, | ||
const int32_t *& | mindices, | ||
int & | numcindices, | ||
const SbBool | needNormals, | ||
SbBool & | normalCacheUsed | ||
) | [protected] |
Convenience method that will fetch data needed for rendering or generating primitives. Takes care of normal cache.
This method was not part of the original SGI Open Inventor API, and is an extension specific for Coin.
References coordIndex, SoVertexShape::generateAndReadLockNormalCache(), SoMField::getNum(), SoMFInt32::getValues(), materialIndex, normalIndex, SoVertexShape::readUnlockNormalCache(), and textureCoordIndex.
Referenced by SoIndexedTriangleStripSet::generatePrimitives(), SoIndexedFaceSet::generatePrimitives(), SoIndexedTriangleStripSet::GLRender(), SoIndexedLineSet::GLRender(), and SoIndexedFaceSet::GLRender().
Coordinate indices.
Referenced by computeBBox(), SoIndexedTriangleStripSet::generateDefaultNormals(), SoIndexedFaceSet::generateDefaultNormals(), SoIndexedTriangleStripSet::generatePrimitives(), SoIndexedFaceSet::generatePrimitives(), getNumVerts(), SoIndexedTriangleStripSet::getPrimitiveCount(), SoIndexedLineSet::getPrimitiveCount(), SoIndexedFaceSet::getPrimitiveCount(), getVertexData(), SoIndexedTriangleStripSet::GLRender(), SoIndexedLineSet::GLRender(), SoIndexedFaceSet::GLRender(), and SoIndexedShape().
Material indices.
Referenced by getVertexData(), and SoIndexedShape().
Normal indices.
Referenced by getVertexData(), and SoIndexedShape().
Texture coordinate indices.
Referenced by getVertexData(), and SoIndexedShape().
Copyright © 1998-2007 by Systems in Motion AS. All rights reserved.
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