trusty (3) SoVertexShape.3iv.gz
NAME
SoVertexShape — abstract base class for all vertex-based shape nodes
INHERITS FROM
SoBase > SoFieldContainer > SoNode > SoShape > SoVertexShape
SYNOPSIS
#include <Inventor/nodes/SoVertexShape.h>
Fields from class SoVertexShape:
SoSFNode vertexProperty
Methods from class SoVertexShape:
static SoType getClassTypeId()
Methods from class SoNode:
void setOverride(SbBool state)
SbBool isOverride() const
SoNode * copy(SbBool copyConnections = FALSE) const
virtual SbBool affectsState() const
static SoNode * getByName(const SbName &name)
static int getByName(const SbName &name, SoNodeList &list)
Methods from class SoFieldContainer:
void setToDefaults()
SbBool hasDefaultValues() const
SbBool fieldsAreEqual(const SoFieldContainer *fc) const
void copyFieldValues(const SoFieldContainer *fc, SbBool copyConnections = FALSE)
SbBool set(const char *fieldDataString)
void get(SbString &fieldDataString)
virtual int getFields(SoFieldList &resultList) const
virtual SoField * getField(const SbName &fieldName) const
SbBool getFieldName(const SoField *field, SbName &fieldName) const
SbBool isNotifyEnabled() const
SbBool enableNotify(SbBool flag)
Methods from class SoBase:
void ref()
void unref() const
void unrefNoDelete() const
void touch()
virtual SoType getTypeId() const
SbBool isOfType(SoType type) const
virtual void setName(const SbName &name)
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 vertexProperty
vertex property node.
METHODS
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
SoVertexShape(3IV)()