pfLine2d(3pf) OpenGL Performer 3.2.2 libpf C++ Reference Pages pfLine2d(3pf)NAMEpfLine2d - A two-dimensional parametric line
FUNCTION SPECIFICATION
#include <Performer/pf/pfLine2d.h>
static pfType* pfLine2d::getClassType(void);
pfLine2d::pfLine2d();
pfLine2d::pfLine2d(pfReal x1, pfReal y1, pfReal t1,
pfReal x2, pfReal y2, pfReal t2);
void pfLine2d::setPoint1(pfReal x1, pfReal y1, pfReal t1);
void pfLine2d::setPoint2(pfReal x2, pfReal y2, pfReal t2);
void pfLine2d::getPoint1(pfReal *x1, pfReal *y1, pfReal *t1);
void pfLine2d::getPoint2(pfReal *x2, pfReal *y2, pfReal *t2);
void pfLine2d::evalPt(pfReal t, pfVec2 &pnt);
PARENT CLASS FUNCTIONS
The OpenGL Performer class pfLine2d is derived from the parent class
pfCurve2d, so each of these member functions of class pfCurve2d are also
directly usable with objects of class pfLine2d. This is also true for
ancestor classes of class pfCurve2d.
void pfCurve2d::setBeginT(const pfReal beginT);
void pfCurve2d::setEndT(const pfReal endT);
pfReal pfCurve2d::getBeginT() const;
pfReal pfCurve2d::getEndT() const;
pfVec2 pfCurve2d::getBeginPt();
pfVec2 pfCurve2d::getEndPt();
pfVec2 pfCurve2d::getBeginTan();
pfVec2 pfCurve2d::getEndTan();
void pfCurve2d::setClosed(const pfLoop loopVal);
pfLoop pfCurve2d::getClosed();
void pfCurve2d::setClosedTol(const pfReal tol);
pfReal pfCurve2d::getClosedTol() const;
virtual void pfCurve2d::evalPt(pfReal t, pfVec2& pnt) = 0;
virtual void pfCurve2d::evalTan(pfReal t, pfVec2& pnt);
virtual void pfCurve2d::evalNorm(pfReal t, pfVec2& pnt);
virtual void pfCurve2d::evalCurv(pfReal t, pfReal* curv);
void pfCurve2d::eval(pfReal t, pfVec2 &pnt, pfVec2 &tan,
pfReal* curv, pfVec2 &norm)
Since the class pfCurve2d is itself derived from the parent class pfRep,
objects of class pfLine2d can also be used with these functions designed
for objects of class pfRep.
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pfLine2d(3pf) OpenGL Performer 3.2.2 libpf C++ Reference Pages pfLine2d(3pf)
void pfRep::setOrigin(const pfVec3 *origin);
void pfRep::setOrient(const pfMatrix *mat);
void pfRep::getOrigin(pfVec3& origin);
void pfRep::getOrient(pfMatrix& matrix);
Since the class pfRep is itself derived from the parent class pfGeode,
objects of class pfLine2d can also be used with these functions designed
for objects of class pfGeode.
int pfGeode::addGSet(pfGeoSet* gset);
int pfGeode::removeGSet(pfGeoSet* gset);
int pfGeode::insertGSet(int index, pfGeoSet* gset);
int pfGeode::replaceGSet(pfGeoSet* old, pfGeoSet* new);
pfGeoSet * pfGeode::getGSet(int index);
int pfGeode::getNumGSets(void);
Since the class pfGeode is itself derived from the parent class pfNode,
objects of class pfLine2d can also be used with these functions designed
for objects of class pfNode.
pfGroup * pfNode::getParent(int i);
int pfNode::getNumParents(void);
void pfNode::setBound(pfSphere *bsph, int mode);
int pfNode::getBound(pfSphere *bsph);
pfNode* pfNode::clone(int mode);
pfNode* pfNode::bufferClone(int mode, pfBuffer *buf);
int pfNode::flatten(int mode);
int pfNode::setName(const char *name);
const char * pfNode::getName(void);
pfNode* pfNode::find(const char *pathName, pfType *type);
pfNode* pfNode::lookup(const char *name, pfType* type);
int pfNode::isect(pfSegSet *segSet, pfHit **hits[]);
void pfNode::setTravMask(int which, uint mask, int setMode,
int bitOp);
uint pfNode::getTravMask(int which);
void pfNode::setTravFuncs(int which, pfNodeTravFuncType pre,
pfNodeTravFuncType post);
void pfNode::getTravFuncs(int which, pfNodeTravFuncType *pre,
pfNodeTravFuncType *post);
void pfNode::setTravData(int which, void *data);
void * pfNode::getTravData(int which);
void pfNode::setTravMode(int which, int mode, int val);
int pfNode::getTravMode(int which, int mode) const;
Since the class pfNode is itself derived from the parent class pfObject,
objects of class pfLine2d can also be used with these functions designed
for objects of class pfObject.
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pfLine2d(3pf) OpenGL Performer 3.2.2 libpf C++ Reference Pages pfLine2d(3pf)
void* pfObject::operator new(size_t);
void* pfObject::operator new(size_t, pfFluxMemory *fmem);
void pfObject::setUserData(void *data);
void pfObject::setUserData(int slot, void *data);
void* pfObject::getUserData(pfObject *obj);
void* pfObject::getUserData(pfObject *obj, int slot);
int pfObject::getNumUserData();
Since the class pfObject is itself derived from the parent class
pfMemory, objects of class pfLine2d can also be used with these functions
designed for objects of class pfMemory.
void* pfMemory::getData(const void *ptr);
pfType * pfMemory::getType();
int pfMemory::isOfType(pfType *type);
int pfMemory::isExactType(pfType *type);
const char * pfMemory::getTypeName();
int pfMemory::copy(pfMemory *src);
int pfMemory::compare(const pfMemory *mem);
void pfMemory::print(uint which, uint verbose, char *prefix,
FILE *file);
int pfMemory::getArena(void *ptr);
void* pfMemory::getArena();
int pfMemory::ref();
int pfMemory::unref();
int pfMemory::unrefDelete();
int pfMemory::unrefGetRef();
int pfMemory::getRef();
int pfMemory::checkDelete();
int pfMemory::isFluxed();
void * pfMemory::getArena();
int pfMemory::getSize();
DESCRIPTION
A two-dimensional parametric line is defined by two points in 2D space
and parametric space, so that the spatial (x,y) and parametric, t, values
vary linearly from one point to the other.
pfLine2d::getClassType returns the pfType* for the class pfLine2d. The
pfType* returned by pfLine2d::getClassType is the same as the pfType*
returned by invoking the virtual function getType on any instance of
class pfLine2d. 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 the member function isOfType 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.
pfLine2d::pfLine2d() creates an instance of an pfLine2d. By default the
parametric domain is defined as [0..1].
pfLine2d::pfLine2d(pfReal x1,pfReal y1,pfReal t1,pfReal x2,pfReal
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pfLine2d(3pf) OpenGL Performer 3.2.2 libpf C++ Reference Pages pfLine2d(3pf)
y2,pfReal t2) creates an instance of a pfLine2d starting at p1=(x1,y1)
and ending at p2=(x2,y2), parametrized from t1 to t2.
The Line's parametric space is chosen such that when it is evaluated at
t1, p1 is returned and when it is evaluated at t2, p2 is returned.
pfLine2d::setPoint1 Sets the first endpoint of the line as per the above
description.
pfLine2d::setPoint2 Sets the second endpoint of the line as per the above
description.
pfLine2d::getPoint1 returns the values set by ::setPoint1.
pfLine2d::getPoint2 returns the values set by ::setPoint2.
pfLine2d::evalPt Evaluates the line at parametric value t. The evaluator
performs linear extrapolation of the line when the values of t are
outside the domain of t1 and t2.
SEE ALSO
pfRep, pfGeode, pfCurve2d
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