Provided by: inventor-doc_2.1.5-10-18_all
SoType — stores runtime type information
#include <Inventor/SoType.h> Methods from class SoType: static SoType fromName(SbName name) SbName getName() const SoType getParent() const static SoType badType() SbBool isBad() const SbBool isDerivedFrom(SoType t) const static int getAllDerivedFrom(SoType type, SoTypeList &list) SbBool canCreateInstance() const void * createInstance() const int operator ==(const SoType t) const int operator !=(const SoType t) const int operator <(const SoType t) const
The SoType class keeps track of runtime type information in Inventor. Each type is associated with a given name, so lookup is possible in either direction. Many Inventor classes request a unique SoType when they are initialized. This type can then be used to find out the actual class of an instance when only its base class is known, or to obtain an instance of a particular class given its type or name. Note that the names associated with types of Inventor classes do not contain the "So" prefix.
static SoType fromName(SbName name) Returns the type associated with the given name. SbName getName() const Returns the name associated with a type. SoType getParent() const Returns the type of the parent class. static SoType badType() Returns an always-illegal type. Useful for returning errors. SbBool isBad() const Returns TRUE if the type is a bad type. SbBool isDerivedFrom(SoType t) const Returns TRUE if the type is derived from type t. static int getAllDerivedFrom(SoType type, SoTypeList &list) Adds all types derived from the given type to the given type list. Returns the number of types added. SbBool canCreateInstance() const Some types are able to create instances; for example, most nodes and engines (those which are not abstract classes) can be created this way. This method returns TRUE if the type supports such creation. void * createInstance() const Creates and returns a pointer to an instance of the type. Returns NULL if an instance could not be created for some reason. The pointer is returned as a generic pointer, but can be cast to the appropriate type. For example: SoCube *c = (SoCube *) SoCube::getClassTypeId().createInstance(); is a convoluted way of creating a new instance of an SoCube. int operator ==(const SoType t) const int operator !=(const SoType t) const Returns TRUE if this type is the same as or not the same as the given type. int operator <(const SoType t) const Less-than comparison operator that can be used to sort types. This is pretty useless otherwise.
SoAction, SoBase, SoDetail, SoError, SoEvent, SoField SoType(3IV)()