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Man Pages


Manual Reference Pages  -  SOTRIANGLESTRIPSET (3)

NAME

SoTriangleStripSet — triangle strip set shape node

CONTENTS

Inherits From
Synopsis
Description
Fields
Methods
Action Behavior
File Format/defaults
See Also

INHERITS FROM

SoBase > SoFieldContainer > SoNode > SoShape > SoVertexShape > SoNonIndexedShape > SoTriangleStripSet

SYNOPSIS

#include <Inventor/nodes/SoTriangleStripSet.h>

Fields from class SoTriangleStripSet:

    SoMFInt32    
                    
SoMFInt32            numVertices

Fields from class SoNonIndexedShape:

    SoSFInt32    
                    
SoSFInt32            startIndex

Fields from class SoVertexShape:

    SoSFNode    
                    
SoSFNode             vertexProperty

Methods from class SoTriangleStripSet:

       
                    
                     SoTriangleStripSet()    
static SoType    
                    
static SoType        getClassTypeId()

Methods from class SoNode:

    void    
                    
void                 setOverride(SbBool state)    
SbBool    
                    
SbBool               isOverride() const    
SoNode *    
                    
SoNode *             copy(SbBool copyConnections = FALSE) const    
virtual SbBool    
                    
virtual SbBool       affectsState() const    
static SoNode *    
                    
static SoNode *      getByName(const SbName &name)    
static int    
                    
static int           getByName(const SbName &name, SoNodeList &list)

Methods from class SoFieldContainer:

    void    
                    
void                 setToDefaults()    
SbBool    
                    
SbBool               hasDefaultValues() const    
SbBool    
                    
SbBool               fieldsAreEqual(const SoFieldContainer *fc) const    
void    
                    
void                 copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)    
SbBool    
                    
SbBool               set(const char *fieldDataString)    
void    
                    
void                 get(SbString &fieldDataString)    
virtual int    
                    
virtual int          getFields(SoFieldList &resultList) const    
virtual SoField *    
                    
virtual SoField *    getField(const SbName &fieldName) const    
SbBool    
                    
SbBool               getFieldName(const SoField *field, SbName &fieldName) const    
SbBool    
                    
SbBool               isNotifyEnabled() const    
SbBool    
                    
SbBool               enableNotify(SbBool flag)

Methods from class SoBase:

    void    
                    
void                 ref()    
void    
                    
void                 unref() const    
void    
                    
void                 unrefNoDelete() const    
void    
                    
void                 touch()    
virtual SoType    
                    
virtual SoType       getTypeId() const    
SbBool    
                    
SbBool               isOfType(SoType type) const    
virtual void    
                    
virtual void         setName(const SbName &name)    
virtual SbName    
                    
virtual SbName       getName() const

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

    SoMFInt32    
                    
SoMFInt32            numVertices
Number of vertices in each triangle strip. The number of strips is equal to the number of values in this field.

METHODS

       
                    
                     SoTriangleStripSet()
Creates a triangle strip set node with default settings.

    static SoType    
                    
static SoType        getClassTypeId()
Returns type identifier for this class.

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.

FILE FORMAT/DEFAULTS

TriangleStripSet {



vertexProperty  NULL
startIndex      0
numVertices     -1


}

SEE ALSO

SoCoordinate3, SoDrawStyle, SoFaceDetail, SoFaceSet, SoIndexedTriangleStripSet, SoQuadMesh, SoVertexProperty

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