Rhino C++ API
8.11
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#include <opennurbs_ellipse.h>
Public Member Functions | |
ON_Ellipse () | |
zeros all fields - plane is invalid More... | |
ON_Ellipse (const ON_Circle &) | |
ON_Ellipse (const ON_Plane &, double, double) | |
~ON_Ellipse () | |
const ON_3dPoint & | Center () const |
ON_3dPoint | ClosestPointTo (const ON_3dPoint &) const |
returns point on ellipse that is closest to given point More... | |
bool | ClosestPointTo (const ON_3dPoint &, double *) const |
returns parameters of point on ellipse that is closest to given point More... | |
bool | Create (const ON_Circle &) |
bool | Create (const ON_Plane &, double, double) |
ON_3dVector | CurvatureAt (double) const |
returns curvature vector More... | |
ON_3dVector | DerivativeAt (int, double) const |
double | EquationAt (const ON_2dPoint &) const |
evaluate ellipse's implicit equation in plane More... | |
double | FocalDistance () const |
bool | GetFoci (ON_3dPoint &F1, ON_3dPoint &F2) const |
int | GetNurbForm (ON_NurbsCurve &) const |
parameterization of NURBS curve does not match ellipse's transcendental parameterization More... | |
ON_2dVector | GradientAt (const ON_2dPoint &) const |
bool | IsCircle () const |
returns true is ellipse is a circle More... | |
bool | IsValid () const |
const ON_3dVector & | Normal () const |
ON_Ellipse & | operator= (const ON_Circle &) |
const ON_Plane & | Plane () const |
plane containing ellipse More... | |
ON_3dPoint | PointAt (double) const |
double | Radius (int) const |
bool | Rotate (double, const ON_3dVector &) |
bool | Rotate (double, const ON_3dVector &, const ON_3dPoint &) |
bool | Rotate (double, double, const ON_3dVector &) |
rotate ellipse about its center More... | |
bool | Rotate (double, double, const ON_3dVector &, const ON_3dPoint &) |
rotate ellipse about a point and axis More... | |
ON_3dVector | TangentAt (double) const |
returns unit tangent More... | |
bool | Translate (const ON_3dVector &) |
Public Attributes | |
ON_Plane | plane |
double | radius [2] |
radii for x and y axes (both must be > 0) More... | |
ON_Ellipse::ON_Ellipse | ( | ) |
zeros all fields - plane is invalid
ON_Ellipse::ON_Ellipse | ( | const ON_Plane & | , |
double | , | ||
double | |||
) |
ON_Ellipse::ON_Ellipse | ( | const ON_Circle & | ) |
ON_Ellipse::~ON_Ellipse | ( | ) |
const ON_3dPoint& ON_Ellipse::Center | ( | ) | const |
ON_3dPoint ON_Ellipse::ClosestPointTo | ( | const ON_3dPoint & | ) | const |
returns point on ellipse that is closest to given point
bool ON_Ellipse::ClosestPointTo | ( | const ON_3dPoint & | , |
double * | |||
) | const |
returns parameters of point on ellipse that is closest to given point
bool ON_Ellipse::Create | ( | const ON_Circle & | ) |
bool ON_Ellipse::Create | ( | const ON_Plane & | , |
double | , | ||
double | |||
) |
ON_3dVector ON_Ellipse::CurvatureAt | ( | double | ) | const |
returns curvature vector
ON_3dVector ON_Ellipse::DerivativeAt | ( | int | , |
double | |||
) | const |
double ON_Ellipse::EquationAt | ( | const ON_2dPoint & | ) | const |
evaluate ellipse's implicit equation in plane
double ON_Ellipse::FocalDistance | ( | ) | const |
Returns: Distance from the center to a focus, commonly called "c".
bool ON_Ellipse::GetFoci | ( | ON_3dPoint & | F1, |
ON_3dPoint & | F2 | ||
) | const |
int ON_Ellipse::GetNurbForm | ( | ON_NurbsCurve & | ) | const |
parameterization of NURBS curve does not match ellipse's transcendental parameterization
returns 0=failure, 2=success
ON_2dVector ON_Ellipse::GradientAt | ( | const ON_2dPoint & | ) | const |
bool ON_Ellipse::IsCircle | ( | ) | const |
returns true is ellipse is a circle
bool ON_Ellipse::IsValid | ( | ) | const |
returns true if all fields contain reasonable information and equation jibes with point and Z.
const ON_3dVector& ON_Ellipse::Normal | ( | ) | const |
ON_Ellipse& ON_Ellipse::operator= | ( | const ON_Circle & | ) |
const ON_Plane& ON_Ellipse::Plane | ( | ) | const |
plane containing ellipse
ON_3dPoint ON_Ellipse::PointAt | ( | double | ) | const |
Evaluation uses the trigonometric parameterization t -> plane.origin + cos(t)*radius[0]*plane.xaxis + sin(t)*radius[1]*plane.yaxis evaluate parameters and return point
double ON_Ellipse::Radius | ( | int | ) | const |
bool ON_Ellipse::Rotate | ( | double | , |
const ON_3dVector & | |||
) |
bool ON_Ellipse::Rotate | ( | double | , |
const ON_3dVector & | , | ||
const ON_3dPoint & | |||
) |
bool ON_Ellipse::Rotate | ( | double | , |
double | , | ||
const ON_3dVector & | |||
) |
rotate ellipse about its center
bool ON_Ellipse::Rotate | ( | double | , |
double | , | ||
const ON_3dVector & | , | ||
const ON_3dPoint & | |||
) |
rotate ellipse about a point and axis
ON_3dVector ON_Ellipse::TangentAt | ( | double | ) | const |
returns unit tangent
bool ON_Ellipse::Translate | ( | const ON_3dVector & | ) |
ON_Plane ON_Ellipse::plane |
< members left public The center of the ellipse is at the plane's origin. The axes of the ellipse are the plane's x and y axes. The equation of the ellipse with respect to the plane is (x/m_r[0])^2 + (y/m_r[1])^2 = 1;
double ON_Ellipse::radius[2] |
radii for x and y axes (both must be > 0)