#include <pcurve.hxx>
Public Member Functions | |
| virtual void | add () |
If this ENTITY is use counted, adds one to the count. | |
| void | add_owner (ENTITY *owner, logical increment_use_count=TRUE) |
| Adds the owner argument to the list of owners. | |
| virtual logical | apply_transform (SPAtransf const &, ENTITY_LIST &, logical=FALSE, logical=TRUE) |
Transforms this ENTITY. | |
| ATTRIB * | attrib () const |
Returns this ENTITY's attribute pointer, or NULL if there is no attached attribute. | |
| ENTITY * | backup () |
| Creates a duplicate record and a change bulletin, if needed, as a backup for roll back. | |
| int | bulletin_count () const |
Returns the number of bulletins referring to this ENTITY. | |
| virtual logical | call_method (METHOD_ID const &, METHOD_ARGS const &) |
| Executes the implementation function for a routine virtual method. | |
| virtual ENTITY * | copy_data (ENTITY_LIST &, pointer_map *pm=NULL, logical dpcpy_skip=FALSE, SCAN_TYPE reason=SCAN_COPY) const |
Allocates a new ENTITY and calls copy_common to fill it in. | |
| virtual void | copy_scan (ENTITY_LIST &, SCAN_TYPE reason=SCAN_COPY, logical dpcpy_skip=FALSE) const |
Adds dependent ENTITYs of this ENTITY to the list of ENTITYs to be copied. | |
| virtual void | debug_ent (FILE *) const |
Prints the type and address of this ENTITY, roll back pointer, attributes, and any unknown subtype information. | |
| const pcurve & | def_pcur () const |
Returns the definition pcurve, or NULL if the pcurve is not private. | |
| virtual logical | deletable () const |
Indicates whether this PCURVE is normally destroyed by lose. | |
| pcurve | equation (logical temporary=FALSE) const |
Returns the equation of this PCURVE, for reading only. | |
| virtual void | fix_pointers (ENTITY *[], SCAN_TYPE reason=SCAN_COPY) |
| Converts pointers from copy indices into real pointers. | |
| void | full_size (SizeAccumulator &est, logical countSelf=TRUE) const |
Increments the SizeAccumulator by the size, in bytes, of everything owned by this ENTITY and, optionally, of the ENTITY itself. | |
| int | get_owners (ENTITY_LIST &list) const |
Copies the list of owners of this CURVE to the list argument. | |
| HISTORY_STREAM * | history () const |
Returns a pointer to the history stream for this ENTITY. | |
| virtual int | identity (int=0) const |
Returns a type identifier for this ENTITY. | |
| int | index () const |
Returns the definition type of this PCURVE. | |
| virtual logical | is_deepcopyable () const |
Returns TRUE if this ENTITY can be deep copied. | |
| virtual logical | is_use_counted () const |
Indicates if this ENTITY is use-counted or not. | |
| virtual int | lookup (logical) const |
Looks up this ENTITY in the appropriate debug list. | |
| virtual void | lose () |
| Posts a delete bulletin to the bulletin board indicating the instance is no longer used in the active model. | |
| logical | needs_rollback () const |
| Checks whether or not the record is already backed up. | |
| void | negate () |
Negates the pcurve, either by reversing the pcurve or by reversing the value of a nonzero def_type. | |
| SPApar_vec | offset () const |
Returns the SPApar_vec parameter space vector offset. | |
| void | operator*= (const SPAtransf &t) |
Transforms this PCURVE. | |
| ENTITY * | owner () const |
Returns the first owner of this PCURVE. | |
| PCURVE (PCURVE *pcrv) | |
Copy-constructs a PCURVE. | |
| PCURVE (CURVE *crv, int def, logical negate=FALSE, const SPApar_vec &pv=*(const class SPApar_vec *) NULL_REF) | |
Constructs a PCURVE that points to an existing PCURVE, via a CURVE. | |
| PCURVE (const pcurve &pcur) | |
Constructs a PCURVE containing a specified pcurve. | |
| PCURVE () | |
Constructs a PCURVE (default constructor). | |
| CURVE * | ref_curve () const |
Returns the reference CURVE. | |
| virtual void | remove (logical lose_if_zero=TRUE) |
Decrements the use count of this ENTITY. | |
| void | remove_owner (ENTITY *owner, logical decrement_use_count=TRUE, logical zero_flag=TRUE) |
| Removes the owner argument from the list of owners. | |
| void | restore_common () |
| Restores data for a record from disc to memory. | |
| void | restore_end (char *id_str) |
| Terminates a restore record. | |
| void | roll_notify (BULLETIN_TYPE, ENTITY *) |
| Fields notifications of rollback operations. | |
| BULLETIN *& | rollback () const |
Returns the pointer to the bulletin board entry for this ENTITY. | |
| virtual void | save (ENTITY_LIST &) const |
| Performs a save operation. | |
| void | set_attrib (ATTRIB *attr) |
Changes the attribute pointer of this ENTITY to point to the given attribute. | |
| void | set_def (CURVE *crv, int index, logical negate=FALSE, const SPApar_vec &offset=*(SPApar_vec *) NULL_REF) |
Sets def to the nth pcurve of an existing CURVE, where n as a positive integer. | |
| void | set_def (const pcurve &pcrv) |
Puts the specified pcurve in def. | |
| virtual void | set_use_count (int val) |
Sets the reference use count of this ENTITY. | |
| void | shift (const SPApar_vec &shift_vec) |
Shifts this PCURVE in parameter space by integral multiples of the period on a periodic surface. | |
| virtual unsigned | size () const |
Returns the size, in bytes, of this ENTITY. | |
| tag_id_type | tag (logical assign_new=TRUE) const |
| Data reading routine. | |
| pcurve * | trans_pcurve (const SPAtransf &t=*(SPAtransf *) NULL_REF, logical negate=FALSE) const |
| Constructs a transformed pcurve. | |
| virtual const char * | type_name () const |
Returns a name for this ENTITY's type. | |
| virtual int | use_count () const |
Returns the use count of this ENTITY. | |
Static Public Member Functions | |
| static MethodFunction | add_method (METHOD_ID const &, MethodFunction) |
| Registers an implementation function for a run-time virtual method. | |
Protected Member Functions | |
| virtual logical | bulletin_no_change_vf (ENTITY const *other, logical identical_comparator) const |
| Compares subclass data. | |
| void | check_destroy () const |
| Checks that entity deletion is legitimate. | |
| void | copy_common (ENTITY_LIST &list, const ENTITY *from, pointer_map *pm=NULL, logical dpcpy_skip=FALSE, SCAN_TYPE reason=SCAN_COPY) |
Fills in this ENTITY with data from the copied ENTITY, converting pointers into indices in the supplied ENTITY_LIST. | |
| void | fix_common (ENTITY *[], SCAN_TYPE reason=SCAN_COPY) |
| Converts pointers from copy indices into real pointers. | |
| void | fixup_copy (ENTITY *rollback) const |
Fixes any pointers in the ENTITY after copying for backup. | |
| logical | holds_pattern () const |
| Returns TRUE if this entity can have a pattern_holder. | |
| logical | is_unknown_entity (void) const |
| Returns TRUE if this is an unknown entity. | |
| void | save_begin (logical terminator=FALSE) const |
| Starts a save record. | |
| void | save_common (ENTITY_LIST &) const |
| Handles the save operation. | |
| void | save_end (ENTITY_LIST &list) const |
| Terminates a save record. | |
Role: The purpose of a PCURVE is to provide a persistent, logable, savable object to manage pcurve information associated with a COEDGE.
PCURVE is a model geometry class that provides a (lowercase) pcurve, the corresponding construction geometry class. In general, a model geometry class is derived from ENTITY and is used to define a permanent model object. It provides model management functionality, in addition to the geometry definition.
A PCURVE provides a procedural 2D parameter-space representation of a CURVE lying on a parameterized SURFACE. The representation may be a private copy (i.e., contained within a lowercase pcurve associated with the PCURVE), or it may refer to information contained within an intcurve. In either case, it may be negated from the underlying parameter space representation. Because there is only one such representation, this class does not need to have derived classes for specific geometries.
Along with the usual ENTITY class methods, PCURVE has member methods to provide access to specific implementations of the geometry. For example, a pcurve can be transformed by a given transform operator.
A use count allows multiple references to a PCURVE. The construction of a new PCURVE initializes the use count to 0. Methods are provided to increment and decrement the use count, and after the use count returns to 0, the entity is deleted.
| PCURVE::PCURVE | ( | ) |
Constructs a PCURVE (default constructor).
Role: Requests memory for this object but does not populate it. The allocation constructor is used primarily by restore. Applications should call this constructor only with the overloaded new operator, because this reserves the memory on the heap, a requirement to support roll back and history management.
| PCURVE::PCURVE | ( | const pcurve & | pcur | ) |
Constructs a PCURVE containing a specified pcurve.
Role: Requests memory for this object and populates it with the data supplied as the argument. Applications should call this constructor only with the overloaded new operator, because this reserves the memory on the heap, a requirement to support roll back and history management.
| PCURVE::PCURVE | ( | CURVE * | crv, | |
| int | def, | |||
| logical | negate = FALSE, |
|||
| const SPApar_vec & | pv = *(const class SPApar_vec *) NULL_REF | |||
| ) |
Constructs a PCURVE that points to an existing PCURVE, via a CURVE.
Role: Requests memory for this object and populates it with the data supplied as the argument. Applications should call this constructor only with the overloaded new operator, because this reserves the memory on the heap, a requirement to support roll back and history management.
Makes a PCURVE to that points to an existing PCURVE via the crv argument. The index def is positive 1 or 2, representing the two surfaces in order. Setting negate to TRUE means the PCURVE referenced via the CURVE is to be considered negated, and par_vec offsets the spline surface in parametric space.
| PCURVE::PCURVE | ( | PCURVE * | pcrv | ) |
Copy-constructs a PCURVE.
Role: Requests memory for this object and populates it with the data supplied as the argument. Applications should call this constructor only with the overloaded new operator, because this reserves the memory on the heap, a requirement to support roll back and history management.
| pcrv | PCURVE whose data is to be copied. |
| virtual void PCURVE::add | ( | ) | [virtual] |
If this ENTITY is use counted, adds one to the count.
Role: If this ENTITY is not use counted, signals an error.
Every held pointer to a use counted ENTITY should be declared by calling add. There should a corresponding call to remove when the user is done with the pointer. For normal ENTITYs, simply call lose when the ENTITY is no longer part of the active model. For use counted ENTITYs, the implementations of add and remove come from macros in usecount.hxx. Use counted ENTITYs implemented without the macros should implement these virtual methods manually.
Reimplemented from ENTITY.
| static MethodFunction PCURVE::add_method | ( | METHOD_ID const & | method_id, | |
| MethodFunction | method_func | |||
| ) | [static] |
Registers an implementation function for a run-time virtual method.
Role: (Supplied by the ENTITY_FUNCTIONS and UTILITY_DEF macros.)
| method_id | method id. | |
| method_func | method function. |
Reimplemented from ENTITY.
| void PCURVE::add_owner | ( | ENTITY * | owner, | |
| logical | increment_use_count = TRUE | |||
| ) |
Adds the owner argument to the list of owners.
| owner | owner to be added. | |
| increment_use_count | flag to increment use count or not. |
| virtual logical PCURVE::apply_transform | ( | SPAtransf const & | t, | |
| ENTITY_LIST & | list, | |||
| logical | negate = FALSE, |
|||
| logical | reset_pattern = TRUE | |||
| ) | [virtual] |
Transforms this ENTITY.
Role: The ENTITY_LIST is used to prevent sub-entities from being transformed more than once. This method is not included with the standard ENTITY methods in order to allow nontransformable ENTITYs to use the default implementation. (Supplied by the TRANSFORM_FUNCTION and TRANSFORM_DEF macros.)
| t | the transform to apply. | |
| list | list of entities to which the transform has already been applied. | |
| negate | negation flag. | |
| reset_pattern | internal use only. |
Reimplemented from ENTITY.
| ATTRIB* ENTITY::attrib | ( | ) | const [inline, inherited] |
Returns this ENTITY's attribute pointer, or NULL if there is no attached attribute.
| ENTITY* ENTITY::backup | ( | ) | [inherited] |
Creates a duplicate record and a change bulletin, if needed, as a backup for roll back.
Role: The duplication is done via the virtual function make_copy, to let each derived type do its own backup. Before performing a change, each routine checks whether the data structure is posted on the bulletin board. If not, the posting is done automatically. Called by all system change functions.
| int ENTITY::bulletin_count | ( | ) | const [inline, inherited] |
Returns the number of bulletins referring to this ENTITY.
| virtual logical PCURVE::bulletin_no_change_vf | ( | ENTITY const * | other, | |
| logical | identical_comparator | |||
| ) | const [protected, virtual] |
Compares subclass data.
Role: This virtual method is called by bulletin_no_change. When the identical_comparator argument is TRUE, it requires an exact match when comparing doubles, and returns the result of memcmp as a default (for non-overridden subclasses). A FALSE argument indicates tolerant compares, in which case FALSE is returned by default.
| other | other ENTITY in the bulletin. | |
| identical_comparator | identity compare flag. |
Reimplemented from ENTITY.
| virtual logical PCURVE::call_method | ( | METHOD_ID const & | method_id, | |
| METHOD_ARGS const & | method_args | |||
| ) | [virtual] |
Executes the implementation function for a routine virtual method.
Role: (Supplied by the ENTITY_FUNCTIONs and UTILITY_DEF macros).
| method_id | method id. | |
| method_args | method args. |
Reimplemented from ENTITY.
| void ENTITY::check_destroy | ( | ) | const [inline, protected, inherited] |
Checks that entity deletion is legitimate.
Role: This method complains if there is an attempt to delete an entity other than through the private member function destroy, which is carefully controlled.
| void ENTITY::copy_common | ( | ENTITY_LIST & | list, | |
| const ENTITY * | from, | |||
| pointer_map * | pm = NULL, |
|||
| logical | dpcpy_skip = FALSE, |
|||
| SCAN_TYPE | reason = SCAN_COPY | |||
| ) | [protected, inherited] |
Fills in this ENTITY with data from the copied ENTITY, converting pointers into indices in the supplied ENTITY_LIST.
Role: Supports the copy operation. (Supplied by the ENTITY_FUNCTIONS and COPY_DEF macros.) Whenever the operation encounters a pointer to a dependent ENTITY, it find the index of the latter in the supplied ENTITY_LIST and sets the corresponding pointer in the copy to that index.
| list | list of ENTITYs being copied. | |
| from | original ENTITY being copied. | |
| pm | pointer map. | |
| dpcpy_skip | Used only by the base ENTITY and base ATTRIB class. No other derived entity or attribute should need to utilize this value. This logical indicates how non- deepcopyable attributes are handled during a deep copy. If TRUE, the copy will continue even if it encounters attributes marked as not deep-copyable. By default (FALSE), if any attributes that are found to be not deep-copyable, a sys_error will be thrown. (This flag only effects how attributes are handled; any non-deepcopyable non-attribute entities encountered will cause a sys_error to be thrown regardless of this flag's setting.) | |
| reason | type of scan. |
| virtual ENTITY* PCURVE::copy_data | ( | ENTITY_LIST & | list, | |
| pointer_map * | pm = NULL, |
|||
| logical | dpcpy_skip = FALSE, |
|||
| SCAN_TYPE | reason = SCAN_COPY | |||
| ) | const [virtual] |
Allocates a new ENTITY and calls copy_common to fill it in.
Role: Supports the copy operation. (Supplied by the ENTITY_FUNCTIONS and UTILITY_DEF macros.)
| list | ENTITYs to copy. | |
| pm | pointer map. | |
| dpcpy_skip | Used only by the base ENTITY and base ATTRIB class. No other derived entity or attribute should need to utilize this value. This logical indicates how non- deepcopyable attributes are handled during a deep copy. If TRUE, the copy will continue even if it encounters attributes marked as not deep-copyable. By default (FALSE), if any attributes that are found to be not deep-copyable, a sys_error will be thrown. (This flag only effects how attributes are handled; any non-deepcopyable non-attribute entities encountered will cause a sys_error to be thrown regardless of this flag's setting.) | |
| reason | scan type. |
Reimplemented from ENTITY.
| virtual void PCURVE::copy_scan | ( | ENTITY_LIST & | list, | |
| SCAN_TYPE | reason = SCAN_COPY, |
|||
| logical | dpcpy_skip = FALSE | |||
| ) | const [virtual] |
Adds dependent ENTITYs of this ENTITY to the list of ENTITYs to be copied.
Role: Supports the copy operation. (Supplied by the ENTITY_FUNCTIONS and SCAN_DEF macros.) The default type of scan (reason) is SCAN_COPY.
| list | ENTITYs to copy. | |
| reason | type of copy. | |
| dpcpy_skip | Used only by the base ENTITY and base ATTRIB class. No other derived entity or attribute should need to utilize this value. This logical indicates how non- deepcopyable attributes are handled during a deep copy. If TRUE, the copy will continue even if it encounters attributes marked as not deep-copyable. By default (FALSE), if any attributes that are found to be not deep-copyable, a sys_error will be thrown. (This flag only effects how attributes are handled; any non-deepcopyable non-attribute entities encountered will cause a sys_error to be thrown regardless of this flag's setting.) |
Reimplemented from ENTITY.
| virtual void PCURVE::debug_ent | ( | FILE * | file_pointer | ) | const [virtual] |
Prints the type and address of this ENTITY, roll back pointer, attributes, and any unknown subtype information.
Role: This method is called by DEBUG_LIST::debug for an entirely unknown ENTITY type, or at the start of any derived class's debug_ent method. Each derived class's debug_ent method uses the debug function described in the Spatial Product Documentation to print information added at that level. (Supplied by the ENTITY_FUNCTIONS and DEBUG_DEF macros.)
| file_pointer | file pointer. |
Reimplemented from ENTITY.
| const pcurve& PCURVE::def_pcur | ( | ) | const [inline] |
| virtual logical PCURVE::deletable | ( | ) | const [virtual] |
Indicates whether this PCURVE is normally destroyed by lose.
Role: The method returns FALSE, indicating that PCURVEs are, by default, shared among multiple owners by means of use-count tracking, and so are destroyed implicitly when every owner has been lost. Classes derived from PCURVE may of course override this behavior
Reimplemented from ENTITY.
| pcurve PCURVE::equation | ( | logical | temporary = FALSE |
) | const |
Converts pointers from copy indices into real pointers.
Role: Called by fix_pointers. For ENTITY, converts the attribute pointer, and any pointers in the unknown_entity_text record. (Supplied by the ENTITY_FUNCTIONS and FIX_POINTER_DEF macros.)
| array | ENTITY pointers to fix. | |
| reason | type of scan. |
Reimplemented from ENTITY.
| virtual void PCURVE::fix_pointers | ( | ENTITY * | entity_array[], | |
| SCAN_TYPE | reason = SCAN_COPY | |||
| ) | [virtual] |
Converts pointers from copy indices into real pointers.
Role: The fix_pointers method for each entity in the restore array is called, with the given array as an argument. This calls fix_common, which calls its parent's fix_common, and then corrects any pointers in the derived class. In practice there is never anything special for fix_pointers to do, but it is retained for consistency and compatibility. (Supplied by the ENTITY_FUNCTIONS and UTILITY_DEF macros.)
| entity_array | ENTITY pointers to fix. | |
| reason | type of scan. |
Reimplemented from ENTITY.
| void ENTITY::fixup_copy | ( | ENTITY * | rollback | ) | const [protected, inherited] |
Fixes any pointers in the ENTITY after copying for backup.
Role: For ENTITY, this method has nothing to do, but because it is called by all data types, it is required to terminate the copy chain. (Supplied by the ENTITY_FUNCTIONS and SIMPLE_COPY_CONE macros.)
| rollback | the ENTITY to copy for backup. |
Reimplemented in GA_WORKSPACE.
| void PCURVE::full_size | ( | SizeAccumulator & | est, | |
| logical | countSelf = TRUE | |||
| ) | const [virtual] |
Increments the SizeAccumulator by the size, in bytes, of everything owned by this ENTITY and, optionally, of the ENTITY itself.
Role: If countSelf is TRUE, increments the SizeAccumulator by the size, in bytes, of the ENTITY and everything owned by the ENTITY. If countSelf is FALSE, increments the SizeAccumulator by the size, in bytes, of everything owned by the ENTITY, but not including the size of the ENTITY itself.
For example, if an ENTITY contained a character string and full_size were called with countSelf == FALSE, the SizeAccumulator would be incremented by the size, in bytes, of the character string.
Reimplemented from ENTITY.
| int PCURVE::get_owners | ( | ENTITY_LIST & | list | ) | const |
Copies the list of owners of this CURVE to the list argument.
Role: Returns the number of owners copied.
| list | list of owners. |
| HISTORY_STREAM* ENTITY::history | ( | ) | const [inline, inherited] |
Returns a pointer to the history stream for this ENTITY.
| logical PCURVE::holds_pattern | ( | ) | const [inline, protected, virtual] |
Returns TRUE if this entity can have a pattern_holder.
For internal use only.
Reimplemented from ENTITY.
| virtual int PCURVE::identity | ( | int | level = 0 |
) | const [virtual] |
Returns a type identifier for this ENTITY.
Role: If level is unspecified or 0, returns the type identifier ENTITY_TYPE. If level is specified, returns ENTITY_TYPE for that level of derivation from ENTITY. The level of this class is defined as ENTITY_LEVEL.
A positive level specifies the level of derivation down from the ENTITY class to examine. ENTITY itself has level 0. If level is unspecified or 0, the type of the most specific class of object is returned. If level is 1, the type of the class one level down from ENTITY is returned. If level is 2, the type of the parent class 2 levels down from ENTITY is returned, and so on. If level is greater than the level of the instance, -1 ("unknown") is returned.
A negative level similarly specifies the level of derivation up from the most specific class of object returned.
(Supplied by the ENTITY_FUNCTIONS and UTILITY_DEF macros.)
| level | the derivation level at which the object is to be identified. |
Reimplemented from ENTITY.
| int PCURVE::index | ( | ) | const [inline] |
| virtual logical PCURVE::is_deepcopyable | ( | ) | const [virtual] |
| logical ENTITY::is_unknown_entity | ( | void | ) | const [protected, inherited] |
Returns TRUE if this is an unknown entity.
An unknown entity is one that is restored from SAT/SAB but is not native to the running app.
| virtual logical PCURVE::is_use_counted | ( | ) | const [virtual] |
| virtual int PCURVE::lookup | ( | logical | insert | ) | const [virtual] |
Looks up this ENTITY in the appropriate debug list.
Role: This method is not included among the standard ENTITY methods because often subclasses may wish to be included in their parent's debug list. This is done simply by not including a lookup method in the subclass.
When the logical argument is TRUE, the ENTITY is inserted into the debug list if it does not already exist in the list. If it is FALSE and the ENTITY does not exist in the list, a -1 is returned. (Supplied by the LOOK_FUNCTION and LOOKUP_DEF macros.)
| insert | flag to insert into debug list. |
Reimplemented from ENTITY.
| virtual void PCURVE::lose | ( | ) | [virtual] |
Posts a delete bulletin to the bulletin board indicating the instance is no longer used in the active model.
Role: The lose methods for attached attributes are also called.
Reimplemented from ENTITY.
| logical ENTITY::needs_rollback | ( | ) | const [inline, inherited] |
Checks whether or not the record is already backed up.
| void PCURVE::negate | ( | ) |
| SPApar_vec PCURVE::offset | ( | ) | const [inline] |
Returns the SPApar_vec parameter space vector offset.
Role: The offset is the displacement in parameter space between the "fit" definition and this PCURVE. This allows the PCURVE to be positioned in the infinite parameter space of a periodic surface, so that continuous curve sequences in object space are continuous in parameter space. The components of this vector should always be integer multiples of the corresponding surface parameter period, zero if it is not periodic in that direction.
| void PCURVE::operator*= | ( | const SPAtransf & | t | ) |
Transforms this PCURVE.
Role: If the definition is a CURVE reference, this method assumes that the curve will be transformed as well, so it does nothing. Before performing the change, it checks if the data structure is posted on the bulletin board. If not, the method calls backup to put an entry on the bulletin board.
| t | transform to apply. |
| ENTITY* PCURVE::owner | ( | ) | const [virtual] |
| virtual void PCURVE::remove | ( | logical | lose_if_zero = TRUE |
) | [virtual] |
Decrements the use count of this ENTITY.
Role: If the use count reaches 0, the ENTITY's lose method is called if the argument lose_if_zero is set to TRUE. (If the entity is not use counted, an error is signaled.)
Every held pointer to a use counted ENTITY should be declared by calling add. There should a corresponding call to remove when the user is done with the pointer. For normal ENTITYs, simply call lose when the ENTITY is no longer part of the active model. For use counted ENTITYs, the implementations of add and remove come from macros in usecount.hxx. Use counted ENTITYs implemented without the macros should implement these virtual methods manually.
| lose_if_zero | flag to lose the ENTITY when the use count drops to 0. |
Reimplemented from ENTITY.
| void PCURVE::remove_owner | ( | ENTITY * | owner, | |
| logical | decrement_use_count = TRUE, |
|||
| logical | zero_flag = TRUE | |||
| ) |
Removes the owner argument from the list of owners.
| owner | owner to be removed. | |
| decrement_use_count | flag to decrement the use count. | |
| zero_flag | flag to lose if use count is zero. |
| void PCURVE::restore_common | ( | ) |
Restores data for a record from disc to memory.
Role: Writes pointers as indices (fix_pointers turns them back into pointers) and returns a pointer to the ENTITY made. Generally, "common" functions that do the main work are protected, as they are called only from the main entry functions or by themselves up the derivation tree.
This method is public, however, because the main restore function is not a member function, and making it a friend would make it unable to be declared static, i.e., local to the defining module. (Supplied by the ENTITY_FUNCTIONS and RESTORE_DEF macros.)
read_ptr Pointer to record in save file for first attribute owned by entity.
if (restore_version_number >= ENTITY_TAGS_VERSION)
read_int new tag
Reimplemented from ENTITY.
| void ENTITY::restore_end | ( | char * | id_str | ) | [inherited] |
Terminates a restore record.
Role: Reads any trailing text and fills in the unknown text pointer. Used only by the save/restore system.
| id_str | the id string. |
| void PCURVE::roll_notify | ( | BULLETIN_TYPE | bulletin_type, | |
| ENTITY * | ent | |||
| ) | [virtual] |
Fields notifications of rollback operations.
Role: The first argument specifies the type of bulletin being rolled back (create, delete or change). In the case of a change notification, the second argument contains the information to be restored into this object. The base implementation, which is used for almost every derived class, does nothing at all.
| bulletin_type | type of bulletin being rolled back. | |
| ent | information to be restored into this argument. |
Reimplemented from ENTITY.
| BULLETIN*& ENTITY::rollback | ( | ) | const [inline, inherited] |
Returns the pointer to the bulletin board entry for this ENTITY.
| virtual void PCURVE::save | ( | ENTITY_LIST & | entity_list | ) | const [virtual] |
Performs a save operation.
Role: Calls save_begin, the particular class's save_common, and then save_end. (Supplied by the ENTITY_FUNCTIONS and UTILITY_DEF macros.)
This save method is just like any other save, except that it calls save_begin with an optional argument to suppress writing of a trailing dash, because save_common does not write out an identifier, or call any parent class's save_common.
| entity_list | ENTITYs to save. |
Reimplemented from ENTITY.
| void ENTITY::save_begin | ( | logical | terminator = FALSE |
) | const [protected, inherited] |
Starts a save record.
Role: Writes a preamble to a save file record, which contains any subclass identifiers not known to this version of ACIS. Called by the save method.
| terminator | terminator flag. |
| void PCURVE::save_common | ( | ENTITY_LIST & | entity_list | ) | const [protected] |
Handles the save operation.
Role: Writes out the savable data associated with the base class. In the case of ENTITY, saveable data is simply the attribute pointer. In the case of child classes derived from ENTITY, class-specific save_common methods handle the class-specific data. Called by the save method. (Supplied by the ENTITY_FUNCTIONS and SAVE_DEF macros.)
Each derived class's save_common method first writes out that class's identifier, calls its parent class's save_common method, and then writes out data particular to the derived class. Thus the save record consists of identifiers in leaf-to-base order, followed by class data in base-to-leaf order. As it writes out any ENTITY pointers, it adds them to the ENTITY_LIST, so that any dependent data also gets written to the file.
| entity_list | ENTITYs to save |
Reimplemented from ENTITY.
| void ENTITY::save_end | ( | ENTITY_LIST & | list | ) | const [protected, inherited] |
Terminates a save record.
Role: Writes out any data associated with subclasses not known to this version of ACIS before terminating the record. Called by the save method.
| list | list of entities. |
| void ENTITY::set_attrib | ( | ATTRIB * | attr | ) | [inherited] |
Changes the attribute pointer of this ENTITY to point to the given attribute.
| attr | the new attribute. |
| void PCURVE::set_def | ( | CURVE * | crv, | |
| int | index, | |||
| logical | negate = FALSE, |
|||
| const SPApar_vec & | offset = *(SPApar_vec *) NULL_REF | |||
| ) |
Sets def to the nth pcurve of an existing CURVE, where n as a positive integer.
Role: The logical negate is TRUE for a reversed pcurve. Removes any previous reference in cur to a CURVE, and increments the use count for the given CURVE. Makes a NULL pcurve and puts it in def. Before performing the change, it checks if the data structure is posted on the bulletin board. If not, the method calls backup to put an entry on the bulletin board.
| void PCURVE::set_def | ( | const pcurve & | pcrv | ) |
Puts the specified pcurve in def.
Role: Checks that this PCURVE has been backed up, then removes any curve referred to by cur (which is set to NULL), sets def_type to zero, and puts the given pcurve in def. Before performing the change, it checks if the data structure is posted on the bulletin board. If not, the method calls backup to put an entry on the bulletin board.
| pcrv | pcurve to which def is to be set. |
| virtual void PCURVE::set_use_count | ( | int | use | ) | [virtual] |
| void PCURVE::shift | ( | const SPApar_vec & | shift_vec | ) |
Shifts this PCURVE in parameter space by integral multiples of the period on a periodic surface.
Role: Before performing the change, it checks if the data structure is posted on the bulletin board. If not, the method calls backup to put an entry on the bulletin board.
| shift_vec | parameter-space vector specifying the shift. |
| virtual unsigned PCURVE::size | ( | ) | const [virtual] |
| tag_id_type ENTITY::tag | ( | logical | assign_new = TRUE |
) | const [inline, inherited] |
Data reading routine.
| assign_new | flag to assign a new tag number or not. |
| pcurve* PCURVE::trans_pcurve | ( | const SPAtransf & | t = *(SPAtransf *) NULL_REF, |
|
| logical | negate = FALSE | |||
| ) | const |
Constructs a transformed pcurve.
Role: The logical negate is TRUE if the pcurve is considered to be reversed. Before performing the change, it checks if the data structure is posted on the bulletin board. If not, the method calls backup to put an entry on the bulletin board.
| t | transform to apply. | |
| negate | flag to consider the pcurve as reversed. |
| virtual const char* PCURVE::type_name | ( | ) | const [virtual] |
| virtual int PCURVE::use_count | ( | ) | const [virtual] |