Linux Certif

Toute la documentation sur la certification Linux LPI

SoNonIndexedShape.3coin2

NAME

SoNonIndexedShape -

The 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.

SYNOPSIS

#include <Inventor/nodes/SoNonIndexedShape.h>

Inherits SoVertexShape.

Inherited by SoFaceSet, SoLineSet, SoPointSet, SoQuadMesh, and SoTriangleStripSet.

Static Public Member Functions

static void initClass (void)

Public Attributes

SoSFInt32 startIndex

Protected Member Functions

SoNonIndexedShape (void)

virtual ~SoNonIndexedShape ()

void computeCoordBBox (SoAction *action, int numVertices, SbBox3f &box, SbVec3f &center)

void fixNumVerticesPointers (SoState *state, const int32_t *&start, const int32_t *&end, int32_t *dummyarray) const

Detailed Description

The 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

void SoNonIndexedShape::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 SoFaceSet, SoLineSet, SoMarkerSet, SoPointSet, SoQuadMesh, and SoTriangleStripSet.

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(), SoNode::getClassTypeId(), SoMField::getNum(), SbVec4f::getReal(), SoAction::getState(), SoMFVec3f::getValues(), SbVec3f::setValue(), startIndex, SoVertexProperty::vertex, and SoVertexShape::vertexProperty.

Referenced by SoTriangleStripSet::computeBBox(), SoQuadMesh::computeBBox(), SoPointSet::computeBBox(), SoLineSet::computeBBox(), and SoFaceSet::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 SoTriangleStripSet::generateDefaultNormals(), SoFaceSet::generateDefaultNormals(), SoTriangleStripSet::generatePrimitives(), SoLineSet::generatePrimitives(), SoFaceSet::generatePrimitives(), SoTriangleStripSet::getPrimitiveCount(), SoLineSet::getPrimitiveCount(), SoFaceSet::getPrimitiveCount(), SoTriangleStripSet::GLRender(), SoLineSet::GLRender(), and SoFaceSet::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(), SoTriangleStripSet::generateDefaultNormals(), SoQuadMesh::generateDefaultNormals(), SoFaceSet::generateDefaultNormals(), SoTriangleStripSet::generatePrimitives(), SoQuadMesh::generatePrimitives(), SoPointSet::generatePrimitives(), SoLineSet::generatePrimitives(), SoFaceSet::generatePrimitives(), SoPointSet::getPrimitiveCount(), SoMarkerSet::getPrimitiveCount(), SoTriangleStripSet::GLRender(), SoQuadMesh::GLRender(), SoPointSet::GLRender(), SoMarkerSet::GLRender(), SoLineSet::GLRender(), SoFaceSet::GLRender(), and SoNonIndexedShape().

Author

Generated automatically by Doxygen for Coin from the source code.