SoTriangleStripSet — triangle strip set shape node
Contents
Action Behavior
SoGLRenderAction
Draws a strip set based on the current coordinates, normals, materials, drawing style, and so on.
SoRayPickAction
Picks on the strip set 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 strip 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 forming the strips of the set.
Description
This shape node constructs triangle strips out of vertices. The vertices may be specified in the
vertexProperty field (from SoVertexShape), or by the current inherited coordinates. For optimal
performance, the vertexProperty field is recommended.
SoTriangleStripSet is one of the fastest ways of drawing polygonal objects in Inventor. It uses the
current coordinates, in order, starting with the first one. The values in the numVertices field indicate
the number of vertices to use for each triangle strip in the set. The number of values in this field
determines the number of strips.
For example, if numVertices has the values [3,5], coordinates 1, 2, and 3 would be used for the first
triangle strip and coordinates 4, 5, 6, 7, and 8 would be used for the second strip. This would result in
1 triangle in the first strip and 3 in the second.
The coordinates of the strips are transformed by the current cumulative transformation. The strips are
drawn with the current light model and drawing style.
Treatment of the current material and normal binding is as follows: The PER_PART binding specifies a
material or normal for each strip of the set. The PER_FACE binding specifies a material or normal for
each triangle. The _INDEXED bindings are equivalent to their non-indexed counterparts. The default normal
binding is PER_VERTEX. The default material binding is OVERALL.
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.
Fields
SoMFInt32numVertices
Number of vertices in each triangle strip. The number of strips is equal to the number of values in
this field.
File Format/Defaults
TriangleStripSet{vertexPropertyNULLstartIndex0numVertices-1}Inherits From
SoBase > SoFieldContainer > SoNode > SoShape > SoVertexShape > SoNonIndexedShape > SoTriangleStripSet
Methods
SoTriangleStripSet()
Creates a triangle strip set node with default settings.
staticSoTypegetClassTypeId()
Returns type identifier for this class.
Name
SoTriangleStripSet — triangle strip set shape node
See Also
SoCoordinate3,SoDrawStyle,SoFaceDetail,SoFaceSet,SoIndexedTriangleStripSet,SoQuadMesh,SoVertexPropertySoTriangleStripSet(3IV)()
Synopsis
#include<Inventor/nodes/SoTriangleStripSet.h>
Fields from class SoTriangleStripSet:
SoMFInt32numVertices
Fields from class SoNonIndexedShape:
SoSFInt32startIndex
Fields from class SoVertexShape:
SoSFNodevertexProperty
Methods from class SoTriangleStripSet:
SoTriangleStripSet()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