pfBoundary(3pf) OpenGL Performer 3.2.2 libpf C Reference Pages
NAME
pfNewBoundary, pfGetBoundaryClassType, pfBoundaryAddEdge,
pfGetBoundarySurface, pfBoundarySurface - Winged boundary
FUNCTION SPECIFICATION
#include <Performer/pf.h>
pfBoundary * pfNewBoundary(void *arena);
pfType * pfGetBoundaryClassType(void);
void pfBoundaryAddEdge(pfBoundary *b, int i,
pfParaSurface *sur, int trimLoop, int trimCurve);
int pfGetBoundarySurface(pfBoundary *b, int i);
void pfBoundarySurface(pfBoundary *b, int i, int surfaceId);
PARENT CLASS FUNCTIONS
The OpenGL Performer class pfBoundary is derived from the parent class
pfObject, so each of these member functions of class pfObject are also
directly usable with objects of class pfBoundary. Casting an object of
class pfBoundary to an object of class pfObject is taken care of
automatically. This is also true for casts to objects of ancestor
classes of class pfObject.
void pfUserDataSlot(pfObject *obj, int slot, void *data);
void pfUserData(pfObject *obj, void *data);
void* pfGetUserDataSlot(pfObject *obj, int slot);
void* pfGetUserData(pfObject *obj);
int pfGetNumUserData(pfObject *obj);
int pfGetNamedUserDataSlot(const char *name);
const char* pfGetUserDataSlotName(int slot);
int pfGetNumNamedUserDataSlots(void);
int pfDeleteGLHandle(pfObject *obj);
Since the class pfObject is itself derived from the parent class
pfMemory, objects of class pfBoundary can also be used with these
functions designed for objects of class pfMemory.
pfType * pfGetType(const void *ptr);
int pfIsOfType(const void *ptr, pfType *type);
int pfIsExactType(const void *ptr, pfType *type);
const char * pfGetTypeName(const void *ptr);
int pfRef(void *ptr);
int pfUnref(void *ptr);
int pfUnrefDelete(void *ptr);
int pfUnrefGetRef(void *ptr);
int pfGetRef(const void *ptr);
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pfBoundary(3pf) OpenGL Performer 3.2.2 libpf C Reference Pages
int pfCopy(void *dst, void *src);
int pfDelete(void *ptr);
int pfIsFluxed(void *ptr);
int pfCompare(const void *ptr1, const void *ptr2);
void pfPrint(const void *ptr, uint which, uint verbose,
FILE *file);
void * pfGetArena(void *ptr);
DESCRIPTION
pfBoundary defines a trim curve in UV space. It can be either a discrete
or continuous curve. For the purpose of topology construction (-
pfBoundary), an edge contains an index to the boundary list in the class
pfBoundary.
pfNewBoundary creates and returns a handle to a pfBoundary. arena
specifies a malloc arena out of which the pfBoundary is allocated or NULL
for allocation off the process heap. pfBoundarys can be deleted with
pfDelete.
pfGetBoundaryClassType returns the pfType* for the class pfBoundary. the
pfType* returned by pfGetBoundaryClassType is the same as the pfType*
returned by invoking pfGetType on any instance of class pfBoundary.
Because OpenGL Performer allows subclassing of built-in types, when
decisions are made based on the type of an object, it is usually better
to use pfIsOfType to test if an object is of a type derived from a
Performer type rather than to test for strict equality of the pfType*'s.
pfGetBoundaryBoundary returns the boundary id of the boundary associated
with this edge.
pfGetBoundaryBoundaryDir returns the boundary direction set in
pfBoundaryBoundaryDir.
pfGetBoundaryContCurve returns a pointer to the continuous 2D curve
representing this edge. Returns NULL if the edge is not represented by a
continous curve.
pfGetBoundaryDisCurve returns a pointer to the discrete 2D curve
representing this edge. Returns NULL if the edge is not represented by a
discrete curve.
pfBoundaryContCurve sets the continuous curve to be c. It also references
c.
pfBoundaryDisCurve sets the discrete curve to be d. It also references d.
pfGetBoundaryBoundary returns the boundary id of the boundary associated
with this edge.
pfBoundaryBoundary sets the boundary id.
pfBoundaryBoundaryDir when the value is -1, it indicates that if we
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pfBoundary(3pf) OpenGL Performer 3.2.2 libpf C Reference Pages
evaluate (3D space) this trim curve from beginT to endT, the XYZ points
are in the reverse order of the 'xyzBoundary' in the corresponding
boundary. When the value is 1, if indicates that the order is the same.
pfGetBoundaryBoundaryDir returns the boundary direction set in
pfBoundaryBoundaryDir.
SEE ALSO
pfTopo, pfCurve2d, pfDisCurve2d, pfDisCurve3d, pfParaSurface
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