SoNonIndexedShape - Online Linux Manual PageSection : 3
Updated : Mon Jan 25 2021
Source : Version 2.5.0
Note : Coin
NAMESoNonIndexedShape − The SoNonIndexedShape class is the superclass for all non-indexed vertex based shapes​.
SYNOPSIS
#include <Inventor/nodes/SoNonIndexedShape​.h> Inherits SoVertexShape​. Inherited by SoFaceSet, SoLineSet, SoPointSet, SoQuadMesh, and SoTriangleStripSet​.
Public Member Functionsvirtual SoType getTypeId (void) const
Static Public Member Functionsstatic SoType getClassTypeId (void)
static void initClass (void)
Public AttributesSoSFInt32 startIndex
Protected Member Functionsvirtual const SoFieldData * getFieldData (void) const
SoNonIndexedShape (void)
virtual ~SoNonIndexedShape ()
void computeCoordBBox (SoAction *action, int numVertices, SbBox3f &box, SbVec3f ¢er)
void fixNumVerticesPointers (SoState *state, const int32_t *&start, const int32_t *&end, int32_t *dummyarray) const
Static Protected Member Functionsstatic const SoFieldData ** getFieldDataPtr (void)
Additional Inherited Members
Detailed DescriptionThe SoNonIndexedShape class is the superclass for all non-indexed vertex based shapes​. It contains the (now obsoleted) startIndex field and a convenience method for calculating the bounding box​.
Constructor & Destructor Documentation
SoNonIndexedShape::SoNonIndexedShape (void) [protected]Constructor​. References startIndex​.
SoNonIndexedShape::~SoNonIndexedShape () [protected], [virtual]Destructor​.
Member Function Documentation
SoType SoNonIndexedShape::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 SoVertexShape​. Reimplemented in SoTriangleStripSet, SoQuadMesh, SoPointSet, SoMarkerSet, SoLineSet, and SoFaceSet​.
const SoFieldData * SoNonIndexedShape::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 SoVertexShape​. Reimplemented in SoTriangleStripSet, SoQuadMesh, SoPointSet, SoMarkerSet, SoLineSet, and SoFaceSet​.
void SoNonIndexedShape::computeCoordBBox (SoAction * action, int numVertices, SbBox3f & box, SbVec3f & center) [protected]This method is provided as a convenient means for the subclasses of this class to find their bounding box and center value​. The returned bounding box will enclose all vertices from startIndex up to startIndex + numVertices​. If numVertices is less than zero, all vertices in the current coordinate element or vertex property node will be used in the calculation​. The center point will be calculated as the average of all the vertices in the bounding box​. References SbBox3f::extendBy(), SoMField::getNum(), SbVec4f::getReal(), SoAction::getState(), SoMFVec3f::getValues(), SoBase::isOfType(), SbVec3f::setValue(), startIndex, SoVertexProperty::vertex, and SoVertexShape::vertexProperty​. Referenced by SoFaceSet::computeBBox(), SoLineSet::computeBBox(), SoPointSet::computeBBox(), SoQuadMesh::computeBBox(), and SoTriangleStripSet::computeBBox()​.
void SoNonIndexedShape::fixNumVerticesPointers (SoState * state, const int32_t *& start, const int32_t *& end, int32_t * dummyarray) const [protected]Convenience method that might adjust start and end pointers, which should point at the start and end of the numVertices array when calling this method​. This takes care of the case where numVertices contains a single -1, and all coordinates in the state (or in the vertexProperty field) should be rendered as one primitive​. dummyarray should be a temporary array, with room for one integer​. Not part of the OIV API​.
References SoMField::getNum(), startIndex, SoVertexProperty::vertex, and SoVertexShape::vertexProperty​. Referenced by SoFaceSet::generateDefaultNormals(), SoTriangleStripSet::generateDefaultNormals(), SoFaceSet::generatePrimitives(), SoLineSet::generatePrimitives(), SoTriangleStripSet::generatePrimitives(), SoFaceSet::getPrimitiveCount(), SoLineSet::getPrimitiveCount(), SoTriangleStripSet::getPrimitiveCount(), SoFaceSet::GLRender(), SoLineSet::GLRender(), and SoTriangleStripSet::GLRender()​.
Member Data Documentation
SoSFInt32 SoNonIndexedShape::startIndexCoordinates are fetched from this index on​. This field is now obsoleted, and is provided only for backward compatibility​.
Referenced by computeCoordBBox(), fixNumVerticesPointers(), SoFaceSet::generateDefaultNormals(), SoQuadMesh::generateDefaultNormals(), SoTriangleStripSet::generateDefaultNormals(), SoFaceSet::generatePrimitives(), SoLineSet::generatePrimitives(), SoPointSet::generatePrimitives(), SoQuadMesh::generatePrimitives(), SoTriangleStripSet::generatePrimitives(), SoMarkerSet::getPrimitiveCount(), SoPointSet::getPrimitiveCount(), SoFaceSet::GLRender(), SoLineSet::GLRender(), SoMarkerSet::GLRender(), SoPointSet::GLRender(), SoQuadMesh::GLRender(), SoTriangleStripSet::GLRender(), and SoNonIndexedShape()​.
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