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.
This is an abstract class. See the reference page of a derived class for the
format and default values.
SEE ALSO¶
SoIndexedShape, SoNonIndexedShape, SoVertexProperty
