NAME
SoIndexedPointSet -
The SoIndexedPointSet class is used to display a set of 3D points.
This node either uses the coordinates currently on the state (typically
set up by a leading SoCoordinate3 node in the scenegraph) or from a
SoVertexProperty node attached to this node to render a set of 3D
points.
SYNOPSIS
#include <Inventor/nodes/SoIndexedPointSet.h>
Inherits SoIndexedShape.
Inherited by SoIndexedMarkerSet.
Public Member Functions
SoIndexedPointSet (void)
virtual void GLRender (SoGLRenderAction *action)
virtual void getBoundingBox (SoGetBoundingBoxAction *action)
virtual void getPrimitiveCount (SoGetPrimitiveCountAction *action)
virtual void notify (SoNotList *list)
Static Public Member Functions
static void initClass (void)
Protected Types
enum Binding { OVERALL, PER_VERTEX, PER_VERTEX_INDEXED }
Protected Member Functions
virtual ~SoIndexedPointSet ()
virtual void generatePrimitives (SoAction *action)
virtual SbBool generateDefaultNormals (SoState *, SoNormalCache *nc)
virtual SbBool generateDefaultNormals (SoState *state, SoNormalBundle
*bundle)
Binding findNormalBinding (SoState *const state) const
Binding findMaterialBinding (SoState *const state) const
Binding findTextureBinding (SoState *const state) const
Protected Attributes
SoVertexArrayIndexer * vaindexer
Detailed Description
The SoIndexedPointSet class is used to display a set of 3D points.
This node either uses the coordinates currently on the state (typically
set up by a leading SoCoordinate3 node in the scenegraph) or from a
SoVertexProperty node attached to this node to render a set of 3D
points.
Here’s a simple usage example of SoIndexedPointSet in a scenegraph:
#Inventor V2.1 ascii
Separator {
Material {
diffuseColor [
1 0 0, 0 1 0, 0 0 1, 1 1 0, 1 0 1, 1 1 1, 1 0.8 0.6, 0.6 0.8 1
]
}
MaterialBinding { value PER_VERTEX_INDEXED }
Normal {
vector [
0 0 1, 1 0 0
]
}
NormalBinding { value PER_VERTEX_INDEXED }
Coordinate3 {
point [
-1 1 0, -1 -1 0, 1 -1 0, 1 1 0, 0 2 -1, -2 0 -1, 0 -2 -1, 2 0 -1
]
}
DrawStyle { pointSize 5 }
IndexedPointSet {
coordIndex [0, 1, 2, 3, 4, 5, 6, 7]
normalIndex [0, 1, 0, 1, 0, 1, 0, 1]
}
}
.fi
FILE FORMAT/DEFAULTS:
IndexedPointSet {
vertexProperty NULL
coordIndex 0
materialIndex -1
normalIndex -1
textureCoordIndex -1
}
Since:
TGS Inventor 6.0, Coin 3.1
Constructor & Destructor Documentation
SoIndexedPointSet::SoIndexedPointSet (void) Constructor.
SoIndexedPointSet::~SoIndexedPointSet () [protected, virtual] Destructor.
Member Function Documentation
void SoIndexedPointSet::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 SoIndexedShape.
Reimplemented in SoIndexedMarkerSet.
void SoIndexedPointSet::GLRender (SoGLRenderAction * action) [virtual]
Action method for the SoGLRenderAction.
This is called during rendering traversals. Nodes influencing the
rendering state in any way or who wants to throw geometry primitives at
OpenGL overrides this method.
Reimplemented from SoShape.
Reimplemented in SoIndexedMarkerSet.
void SoIndexedPointSet::getBoundingBox (SoGetBoundingBoxAction * action)
[virtual] Action method for the SoGetBoundingBoxAction.
Calculates bounding box and center coordinates for node and modifies
the values of the action to encompass the bounding box for this node
and to shift the center point for the scene more towards the one for
this node.
Nodes influencing how geometry nodes calculates their bounding box also
overrides this method to change the relevant state variables.
Reimplemented from SoShape.
void SoIndexedPointSet::getPrimitiveCount (SoGetPrimitiveCountAction *
action) [virtual] Action method for the SoGetPrimitiveCountAction.
Calculates the number of triangle, line segment and point primitives
for the node and adds these to the counters of the action.
Nodes influencing how geometry nodes calculates their primitive count
also overrides this method to change the relevant state variables.
Reimplemented from SoShape.
void SoIndexedPointSet::notify (SoNotList * l) [virtual] Notifies all
auditors for this instance when changes are made.
Reimplemented from SoVertexShape.
Reimplemented in SoIndexedMarkerSet.
void SoIndexedPointSet::generatePrimitives (SoAction * action) [protected,
virtual] The method implements action behavior for shape nodes for
SoCallbackAction. It is invoked from SoShape::callback(). (Subclasses
should not override SoNode::callback().)
The subclass implementations uses the convenience methods
SoShape::beginShape(), SoShape::shapeVertex(), and SoShape::endShape(),
with SoDetail instances, to pass the primitives making up the shape
back to the caller.
Implements SoShape.
SbBool SoIndexedPointSet::generateDefaultNormals (SoState * state,
SoNormalCache * cache) [protected, virtual] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Subclasses should override this method to generate default normals
using the SoNormalCache class. This is more effective than using
SoNormalGenerator. Return TRUE if normals were generated, FALSE
otherwise.
Default method just returns FALSE.
This function is an extension for Coin, and it is not available in the
original SGI Open Inventor v2.1 API.
Reimplemented from SoVertexShape.
SbBool SoIndexedPointSet::generateDefaultNormals (SoState * state,
SoNormalBundle * bundle) [protected, virtual] This API member is
considered internal to the library, as it is not likely to be of
interest to the application programmer.
Subclasses should override this method to generate default normals
using the SoNormalBundle class. TRUE should be returned if normals were
generated, FALSE otherwise.
Default method returns FALSE.
This function is an extension for Coin, and it is not available in the
original SGI Open Inventor v2.1 API.
Reimplemented from SoVertexShape.
Author
Generated automatically by Doxygen for Coin from the source code.