SoIndexedFaceSet — indexed polygonal face shape node
Contents
Action Behavior
SoGLRenderAction
Draws faces based on the current coordinates, normals, materials, drawing style, and so on.
SoRayPickAction
Picks faces based on the current coordinates and transformation. Details about the intersection are
returned in an SoFaceDetail.
SoGetBoundingBoxAction
Computes the bounding box that encloses all vertices of the face set with the current transformation
applied to them. Sets the center to the average of the coordinates of all vertices.
SoCallbackAction
If any triangle callbacks are registered with the action, they will be invoked for each successive
triangle generated from each face in the set.
Description
This node represents a 3D shape formed by constructing faces (polygons) from vertices located at the
coordinates specified in the vertexProperty field (from SoVertexShape), or the current inherited state.
For optimal performance, the vertexProperty field is recommended.
SoIndexedFaceSet uses the indices in the coordIndex field (from SoIndexedShape) to specify the polygonal
faces. An index of SO_END_FACE_INDEX (-1) indicates that the current face has ended and the next one
begins. For improved performance, arrange all the faces with only 3 vertices at beginning of the list,
then all faces with 4 vertices, and finally all other faces.
The vertices of the faces are transformed by the current transformation matrix. The faces are drawn with
the current light model and drawing style.
Treatment of the current material and normal binding is as follows: The PER_PART and PER_FACE bindings
specify a material or normal for each face. PER_VERTEX specifies a material or normal for each vertex.
The corresponding _INDEXED bindings are the same, but use the materialIndex or normalIndex indices (see
SoIndexedShape). The default material binding is OVERALL. The default normal binding is
PER_VERTEX_INDEXED.
If any normals (or materials) are specified, Inventor assumes you provide the correct number of them, as
indicated by the binding. You will see unexpected results if you specify fewer normals (or materials)
than the shape requires. If no normals are specified, they will be generated automatically.
Textures are applied as described for the SoIndexedShape class.
File Format/Defaults
IndexedFaceSet{vertexPropertyNULLcoordIndex0materialIndex-1normalIndex-1textureCoordIndex-1}Inherits From
SoBase > SoFieldContainer > SoNode > SoShape > SoVertexShape > SoIndexedShape > SoIndexedFaceSet
Methods
SoIndexedFaceSet()
Creates an indexed face set node with default settings.
staticSoTypegetClassTypeId()
Returns type identifier for this class.
Name
SoIndexedFaceSet — indexed polygonal face shape node
See Also
SoCoordinate3,SoDrawStyle,SoFaceDetail,SoFaceSet,SoVertexPropertySoIndexedFaceSet(3IV)()
Synopsis
#include<Inventor/nodes/SoIndexedFaceSet.h>
Fields from class SoIndexedShape:
SoMFInt32coordIndexSoMFInt32materialIndexSoMFInt32normalIndexSoMFInt32textureCoordIndex
Fields from class SoVertexShape:
SoSFNodevertexProperty
Methods from class SoIndexedFaceSet:
SoIndexedFaceSet()staticSoTypegetClassTypeId()
Methods from class SoNode:
voidsetOverride(SbBoolstate)SbBoolisOverride()constSoNode*copy(SbBoolcopyConnections=FALSE)constvirtualSbBoolaffectsState()conststaticSoNode*getByName(constSbName&name)staticintgetByName(constSbName&name,SoNodeList&list)
Methods from class SoFieldContainer:
voidsetToDefaults()SbBoolhasDefaultValues()constSbBoolfieldsAreEqual(constSoFieldContainer*fc)constvoidcopyFieldValues(constSoFieldContainer*fc,SbBoolcopyConnections=FALSE)SbBoolset(constchar*fieldDataString)voidget(SbString&fieldDataString)virtualintgetFields(SoFieldList&resultList)constvirtualSoField*getField(constSbName&fieldName)constSbBoolgetFieldName(constSoField*field,SbName&fieldName)constSbBoolisNotifyEnabled()constSbBoolenableNotify(SbBoolflag)
Methods from class SoBase:
voidref()voidunref()constvoidunrefNoDelete()constvoidtouch()virtualSoTypegetTypeId()constSbBoolisOfType(SoTypetype)constvirtualvoidsetName(constSbName&name)virtualSbNamegetName()const