math.geom2d.conic

Interface Conic2D

All Superinterfaces:

Boundary2D, java.lang.Cloneable, Curve2D, GeometricObject2D, OrientedCurve2D, Shape2D

All Known Subinterfaces:

EllipseShape2D

All Known Implementing Classes:

Circle2D, Ellipse2D, Hyperbola2D, Parabola2D

public interface Conic2D
extends Boundary2D

Interface for all conic curves: parametric conics, or ellipses, parabolas, and hyperbolas. Degenerate conics are also encompassed by this interface.

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Conic2D.Type The different types of conic.

Field Summary

Fields inherited from interface math.geom2d.Shape2D

ACCURACY

Method Summary

Modifier and Type	Method and Description
CurveSet2D<? extends ContinuousOrientedCurve2D>	clip(Box2D box) When a curve is clipped, the result is a set of curves.
double[]	conicCoefficients() Returns the coefficient of the Cartesian representation of the conic.
Conic2D.Type	conicType()
double	eccentricity() Returns the eccentricity of the conic.
Conic2D	reverse() Forces the subclasses to return an instance of Boundary2D.
Conic2D	transform(AffineTransform2D trans) Forces the subclasses to return an instance of Boundary2D.

Methods inherited from interface math.geom2d.domain.Boundary2D

continuousCurves, domain, fill, isInside

Methods inherited from interface math.geom2d.domain.OrientedCurve2D

signedDistance, signedDistance, windingAngle

Methods inherited from interface math.geom2d.curve.Curve2D

asAwtShape, clone, draw, firstPoint, getT0, getT1, intersections, isSingular, lastPoint, point, position, project, singularPoints, subCurve, t0, t1, vertices

Methods inherited from interface math.geom2d.Shape2D

boundingBox, contains, contains, distance, distance, isBounded, isEmpty

Methods inherited from interface math.geom2d.GeometricObject2D

almostEquals

Method Detail

conicType

Conic2D.Type conicType()

conicCoefficients

double[] conicCoefficients()

Returns the coefficient of the Cartesian representation of the conic. Cartesian equation has the form :

a*x^2 + b*x*y + c*y^2 + d*x + e*y + f

The length of the array is then of size 6.

eccentricity

double eccentricity()

Returns the eccentricity of the conic.

reverse

Conic2D reverse()

Description copied from interface: Boundary2D

Forces the subclasses to return an instance of Boundary2D.

Specified by:

reverse in interface Boundary2D

Specified by:

reverse in interface Curve2D

Specified by:

reverse in interface OrientedCurve2D

transform

Conic2D transform(AffineTransform2D trans)

Description copied from interface: Boundary2D

Forces the subclasses to return an instance of Boundary2D.

Specified by:

transform in interface Boundary2D

Specified by:

transform in interface Curve2D

Specified by:

transform in interface OrientedCurve2D

Specified by:

transform in interface Shape2D

Parameters:

trans - an affine transform

Returns:

the transformed shape

clip

CurveSet2D<? extends ContinuousOrientedCurve2D> clip(Box2D box)

Description copied from interface: Curve2D

When a curve is clipped, the result is a set of curves.

Specified by:

clip in interface Curve2D

Specified by:

clip in interface OrientedCurve2D

Specified by:

clip in interface Shape2D

Parameters:

box - the clipping box

Returns:

the clipped shape