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Man Pages


Manual Reference Pages  -  SOVERTEXSHAPE (3)

NAME

SoVertexShape — abstract base class for all vertex-based shape nodes

CONTENTS

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

INHERITS FROM

SoBase > SoFieldContainer > SoNode > SoShape > SoVertexShape

SYNOPSIS

#include <Inventor/nodes/SoVertexShape.h>

Fields from class SoVertexShape:

    SoSFNode    
                    
SoSFNode             vertexProperty

Methods from class SoVertexShape:

    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 node is the abstract base class for all vertex-based shape (geometry) nodes. It is used as a repository for convenience functions for subclasses and to provide a type identifier to make it easy to determine whether a shape is vertex-based. It contains one public field, the SoVertexProperty field.

All subclasses of this node draw objects constructed from vertices. If the vertexProperty field is non-null and there are coordinates in the associated vertex property node, then those coordinates are used. Otherwise the objects are drawn using the current coordinates in the state. The coordinates of the shape are transformed by the current transformation matrix and are drawn with the current light model and drawing style.

Subclasses that construct polygons from vertices may not render or pick correctly if any of their polygons are self-intersecting or non-planar.

All vertex shape subclasses use the bounding box of the shape to determine default texture coordinates. The longest dimension of the bounding box defines the S coordinates, and the next longest defines the T coordinates. The value of the S coordinate ranges from 0 to 1, from one end of the bounding box to the other. The T coordinate ranges between 0 and the ratio of the second greatest dimension of the bounding box to the greatest dimension.

When a vertex-based shape is picked with an SoRayPickAction, a detail is always returned. If the shape is composed of faces (such as SoFaceSet or SoTriangleStripSet), an SoFaceDetail is returned. If the shape is composed of line segments (such as SoLineSet), an SoLineDetail is returned. If the shape is composed of points (such as SoPointSet), an SoPointDetail is returned. Note that the type of detail returned is not affected by the current drawing style.

Similarly, each class of vertex-based shape invokes appropriate callbacks if those callbacks are registered with the SoCallbackAction. Shapes made of faces invoke triangle callbacks for each generated triangle. (Faces may be triangulated to create these triangles.) Shapes made of line segments invoke line segment callbacks for each segment, and shapes made of points invoke point callbacks.

The subclass SoIndexedShape is a base class for vertex-based shapes that index into the current set of coordinates. The subclass SoNonIndexedShape is a base class for vertex-based shapes that use the current coordinates in order.

FIELDS

    SoSFNode    
                    
SoSFNode             vertexProperty
vertex property node.

METHODS

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

FILE FORMAT/DEFAULTS

This is an abstract class. See the reference page of a derived class for the format and default values.

SEE ALSO

SoIndexedShape, SoNonIndexedShape, SoVertexProperty

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