math.geom2d.curve
Interface OrientedCurve2D

All Superinterfaces:

Curve2D, java.awt.Shape, Shape2D

All Known Subinterfaces:

Boundary2D, Conic2D, ContinuousBoundary2D, ContinuousOrientedCurve2D, SmoothOrientedCurve2D

All Known Implementing Classes:

BezierCurve2D, BoundaryPolyCurve2D, BoundarySet2D, Circle2D, CircleArc2D, ClosedPolyline2D, Ellipse2D, EllipseArc2D, Hyperbola2D, HyperbolaBranch2D, HyperbolaBranchArc2D, LineArc2D, LineObject2D, LineSegment2D, Parabola2D, ParabolaArc2D, ParametricConic2D, Polyline2D, PolyOrientedCurve2D, Ray2D, StraightLine2D, StraightObject2D

public interface OrientedCurve2D
extends Curve2D

An OrientedCurve2D defines an 'inside' and an 'outside'. It is typically a part of the boundary of a domain. Several OrientedCurve2D form a ContinuousBoundary2D, and one or several ContinousBoundary2D form a Boundary2D.

Author:

dlegland

Field Summary

Fields inherited from interface math.geom2d.Shape2D

ACCURACY, defaultClipWindow, EMPTY_SET

Method Summary

CurveSet2D<? extends OrientedCurve2D>	clip(Box2D box) When a curve is clipped, the result is a set of curves.
OrientedCurve2D	getReverseCurve() Returns the curve with same trace on the plane with parametrization in reverse order.
double	getSignedDistance(double x, double y) The same as getSignedDistance(Point2D), but by passing 2 double as arguments.
double	getSignedDistance(java.awt.geom.Point2D point) Get the signed distance of the curve to the given point : this distance is positive if the point lies outside the shape, and is negative if the point lies inside the shape.
double	getWindingAngle(java.awt.geom.Point2D point) Return the angle portion that the curve turn around the given point.
boolean	isInside(java.awt.geom.Point2D pt) return true if the point is 'inside' the domain bounded by the curve.
OrientedCurve2D	transform(AffineTransform2D trans) Transforms the curve by an affine transform.

Methods inherited from interface math.geom2d.curve.Curve2D

getContinuousCurves, getFirstPoint, getIntersections, getLastPoint, getPoint, getPoint, getPosition, getSubCurve, getT0, getT1, project

Methods inherited from interface math.geom2d.Shape2D

getBoundingBox, getDistance, getDistance, isBounded

Methods inherited from interface java.awt.Shape

contains, contains, contains, contains, getBounds, getBounds2D, getPathIterator, getPathIterator, intersects, intersects

Method Detail

getWindingAngle

double getWindingAngle(java.awt.geom.Point2D point)

Return the angle portion that the curve turn around the given point. Result is a signed angle.

Parameters:

point - a point of the plane

Returns:

a signed angle

getSignedDistance

double getSignedDistance(java.awt.geom.Point2D point)

Get the signed distance of the curve to the given point : this distance is positive if the point lies outside the shape, and is negative if the point lies inside the shape. In this case, absolute value of distance is equals to the distance to the border of the shape.

Parameters:

point - a point of the plane

Returns:

the signed distance to the curve

getSignedDistance

double getSignedDistance(double x,
                         double y)

The same as getSignedDistance(Point2D), but by passing 2 double as arguments.

Parameters:

x - x-coord of a point

y - y-coord of a point

Returns:

the signed distance of the point (x,y) to the curve

isInside

boolean isInside(java.awt.geom.Point2D pt)

return true if the point is 'inside' the domain bounded by the curve.

Parameters:

pt - a point in the plane

Returns:

true if the point is on the left side of the curve.

getReverseCurve

OrientedCurve2D getReverseCurve()

Description copied from interface: Curve2D

Returns the curve with same trace on the plane with parametrization in reverse order.

Specified by:

getReverseCurve in interface Curve2D

clip

CurveSet2D<? extends OrientedCurve2D> 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 Shape2D

Parameters:

box - the clipping box

Returns:

the clipped shape

transform

OrientedCurve2D transform(AffineTransform2D trans)

Description copied from interface: Curve2D

Transforms the curve by an affine transform. The result is an instance of Curve2D.

Specified by:

transform in interface Curve2D

Specified by:

transform in interface Shape2D

Parameters:

trans - an affine transform

Returns:

the transformed shape