pfSphereSurface(3pf) OpenGL Performer 3.2.2 libpf C Reference Pages
NAME
pfGetSphereClassType, pfNewSphere, pfSphereRadius, pfGetSphereRadius,
pfSphereEvalPt, pfSphereEvalNorm - A parametric sphere.
FUNCTION SPECIFICATION
#include <Performer/pf.h>
pfType * pfGetSphereClassType(void);
pfSphereSurface* pfNewSphere(void *arena);
void pfSphereRadius(pfSphereSurface *sphere,
pfReal radiusVal);
pfReal pfGetSphereRadius(pfSphereSurface *sphere);
void pfSphereEvalPt(pfSphereSurface *sphere, pfReal u,
pfReal v, pfVec3 pnt);
void pfSphereEvalNorm(pfSphereSurface *sphere, pfReal u,
pfReal v, pfVec3 norm);
PARENT CLASS FUNCTIONS
The OpenGL Performer class pfSphereSurface is derived from the parent
class pfParaSurface, so each of these member functions of class
pfParaSurface are also directly usable with objects of class
pfSphereSurface. Casting an object of class pfSphereSurface to an object
of class pfParaSurface is taken care of automatically. This is also true
for casts to objects of ancestor classes of class pfParaSurface.
void pfParaSurfaceBeginU(pfParaSurface* surf, pfReal u);
void pfParaSurfaceEndU(pfParaSurface* surf, pfReal u);
void pfParaSurfaceBeginV(pfParaSurface* surf, pfReal v);
void pfParaSurfaceEndV(pfParaSurface* surf, pfReal v);
void pfParaSurfaceSolidId(pfParaSurface* surf, int solidId);
void pfParaSurfaceTopoId(pfParaSurface* surf, int topoId);
void pfParaSurfaceSurfaceId(pfParaSurface* surf, int surfaceId);
pfReal pfGetParaSurfaceBeginU(pfParaSurface* surf);
pfReal pfGetParaSurfaceEndU(pfParaSurface* surf);
pfReal pfGetParaSurfaceBeginV(pfParaSurface* surf);
pfReal pfGetParaSurfaceEndV(pfParaSurface* surf);
int pfGetParaSurfaceTrimLoopCount(pfParaSurface* surf);
pfLoop pfGetParaSurfaceTrimLoopClosed(pfParaSurface* surf,
int loopNum);
int pfGetParaSurfaceTrimCurveCount(pfParaSurface* surf,
int loopNum);
pfEdge* pfGetParaSurfaceTrimCurve(pfParaSurface* surf, int loopNum,
int curveNum);
pfTopo* pfGetParaSurfaceTopo(pfParaSurface* surf);
int pfGetParaSurfaceTopoId(pfParaSurface* surf);
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int pfGetParaSurfaceSolidId(pfParaSurface* surf);
int pfGetParaSurfaceSurfaceId(pfParaSurface* surf);
void pfParaSurfaceHandednessHint(pfParaSurface* surf,
pfBool _clockWise);
pfBool pfGetParaSurfaceHandednessHint(pfParaSurface* surf);
void pfParaSurfaceInsertTrimCurve(pfParaSurface* surf,
int loopNum, pfCurve2d *c, pfDisCurve2d *d);
void pfParaSurfaceAddTrimCurve(pfParaSurface* surf, int loopNum,
pfCurve2d *c, pfDisCurve2d *d);
void pfParaSurfaceTrimLoopClosed(pfParaSurface* surf,
int loopNum, pfLoop closed);
void pfParaSurfaceEvalPt(pfParaSurface* surf, pfReal u,
pfReal v, pfVec3 pnt);
void pfParaSurfaceEvalDu(pfParaSurface* surf, pfReal u,
pfReal v, pfVec3 Du);
void pfParaSurfaceEvalDv(pfParaSurface* surf, pfReal u,
pfReal v, pfVec3 Dv);
void pfParaSurfaceEvalDuu(pfParaSurface* surf, pfReal u,
pfReal v, pfVec3 Duu);
void pfParaSurfaceEvalDvv(pfParaSurface* surf, pfReal u,
pfReal v, pfVec3 Dvv);
void pfParaSurfaceEvalDuv(pfParaSurface* surf, pfReal u,
pfReal v, pfVec3 Duv);
void pfParaSurfaceEvalNorm(pfParaSurface* surf, pfReal u,
pfReal v, pfVec3 norm);
void pfParaSurfaceEvalD(pfParaSurface* surf, pfReal u, pfReal v,
pfReal theta, pfVec3 D);
void pfParaSurfaceEvalDD(pfParaSurface* surf, pfReal u,
pfReal v, pfReal theta, pfVec3 DD);
int pfParaSurfaceGState(pfParaSurface* surf,
pfGeoState *gState);
pfGeoState* pfGetParaSurfaceGState(pfParaSurface* surf);
void pfParaSurfaceClearTessellation(pfParaSurface* surf);
Since the class pfParaSurface is itself derived from the parent class
pfGeode, objects of class pfSphereSurface can also be used with these
functions designed for objects of class pfGeode.
void pfRepOrigin(pfRep *rep, const pfVec3 origin);
void pfRepOrient(pfRep *rep, const pfMatrix mat);
void pfGetRepOrigin(pfRep *rep, pfVec3* origin);
void pfGetRepOrient(pfRep *rep, pfMatrix *mat);
Since the class pfGeode is itself derived from the parent class pfGeode,
objects of class pfSphereSurface can also be used with these functions
designed for objects of class pfGeode.
int pfAddGSet(pfGeode* geode, pfGeoSet* gset);
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int pfRemoveGSet(pfGeode* geode, pfGeoSet* gset);
int pfInsertGSet(pfGeode* geode, int index, pfGeoSet* gset);
int pfReplaceGSet(pfGeode* geode, pfGeoSet* old, pfGeoSet* new);
pfGeoSet * pfGetGSet(const pfGeode* geode, int index);
int pfGetNumGSets(const pfGeode* geode);
Since the class pfGeode is itself derived from the parent class pfNode,
objects of class pfSphereSurface can also be used with these functions
designed for objects of class pfNode.
pfGroup * pfGetParent(const pfNode *node, int i);
int pfGetNumParents(const pfNode *node);
void pfNodeBSphere(pfNode *node, pfSphere *bsph, int mode);
int pfGetNodeBSphere(pfNode *node, pfSphere *bsph);
pfNode* pfClone(pfNode *node, int mode);
pfNode* pfBufferClone(pfNode *node, int mode, pfBuffer *buf);
int pfFlatten(pfNode *node, int mode);
int pfNodeName(pfNode *node, const char *name);
const char * pfGetNodeName(const pfNode *node);
pfNode* pfFindNode(pfNode *node, const char *pathName,
pfType *type);
pfNode* pfLookupNode(const char *name, pfType* type);
int pfNodeIsectSegs(pfNode *node, pfSegSet *segSet,
pfHit **hits[]);
void pfNodeTravMask(pfNode *node, int which, uint mask,
int setMode, int bitOp);
uint pfGetNodeTravMask(const pfNode *node, int which);
void pfNodeTravFuncs(pfNode* node, int which,
pfNodeTravFuncType pre, pfNodeTravFuncType post);
void pfGetNodeTravFuncs(const pfNode* node, int which,
pfNodeTravFuncType *pre, pfNodeTravFuncType *post);
void pfNodeTravData(pfNode *node, int which, void *data);
void * pfGetNodeTravData(const pfNode *node, int which);
void pfNodeTravMode(pfNode* node, int which, int mode,
int val);
int pfGetNodeTravMode(const pfNode* node, int which,
int mode);
Since the class pfNode is itself derived from the parent class pfObject,
objects of class pfSphereSurface can also be used with these functions
designed for objects 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);
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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 pfSphereSurface 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);
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
pfSphereSurface defines a sphere. Any point on the sphere is represented
as:
x(u,v) = radius * cos(u) * sin(v);
y(u,v) = radius * sin(u) * sin(v);
z(u,v) = radius * cos(v);
The default domain for the sphere is [0,2*PI] x [PI,0]. The sphere is
subject to rotation and translation by the matrix "orientation" and the
vector "origin" which are both members of the subperclass pfRep.
pfGetSphereSurfaceClassType returns the pfType* for the class
pfSphereSurface. The pfType* returned by pfGetSphereSurfaceClassType is
the same as the pfType* returned by invoking pfGetType on any instance of
class pfSphereSurface. 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.
pfNewSphere creates an instance of pfSphereSurface with radius set to 1
(A unit sphere).
pfSphereRadius sets the member radius to the value of radiusVal.
pfGetSphereRadius returns the radius of the sphere.
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pfSphereSurface(3pf) OpenGL Performer 3.2.2 libpf C Reference Pages
SEE ALSO
pfRep, pfGeode, pfParaSurface
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