math.geom2d.line
Interface LinearShape2D

All Superinterfaces:

CirculinearCurve2D, CirculinearShape2D, java.lang.Cloneable, Curve2D, GeometricObject2D, Shape2D

All Known Subinterfaces:

LinearElement2D

All Known Implementing Classes:

AbstractLine2D, InvertedRay2D, Line2D, LineArc2D, LineSegment2D, Ray2D, StraightLine2D

public interface LinearShape2D
extends CirculinearCurve2D

A curve that can be inscribed in a straight line, like a ray, a straight line, or a line segment. Classes implementing this interface can be discontinuous, contrary to the interface LinearElement2D.

Author:

dlegland

Field Summary

Fields inherited from interface math.geom2d.Shape2D

ACCURACY

Method Summary

Vector2D	direction() Return one direction vector of the linear shape.
double	horizontalAngle() Returns the angle with axis (O,i), counted counter-clockwise.
Point2D	intersection(LinearShape2D line) Returns the unique intersection with a linear shape.
Point2D	origin() Returns a point in the linear shape.
StraightLine2D	supportingLine() Returns the straight line that contains this linear shape.
LinearShape2D	transform(AffineTransform2D trans) Transforms this linear shape.

Methods inherited from interface math.geom2d.circulinear.CirculinearCurve2D

clip, continuousCurves, length, length, parallel, position, reverse, subCurve, transform

Methods inherited from interface math.geom2d.circulinear.CirculinearShape2D

buffer

Methods inherited from interface math.geom2d.curve.Curve2D

asAwtShape, clone, draw, firstPoint, getT0, getT1, intersections, isSingular, lastPoint, point, position, project, singularPoints, 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

supportingLine

StraightLine2D supportingLine()

Returns the straight line that contains this linear shape. The direction is the same, and if possible the direction vector should be the same.

Returns:

the straight line that contains this linear shape

horizontalAngle

double horizontalAngle()

Returns the angle with axis (O,i), counted counter-clockwise. Result is given between 0 and 2*pi.

origin

Point2D origin()

Returns a point in the linear shape.

Returns:

a point in the linear shape.

direction

Vector2D direction()

Return one direction vector of the linear shape.

Returns:

a direction vector

intersection

Point2D intersection(LinearShape2D line)

Returns the unique intersection with a linear shape. If the intersection doesn't exist (parallel lines), returns null.

transform

LinearShape2D transform(AffineTransform2D trans)

Transforms this linear shape.

Specified by:

transform in interface Curve2D

Specified by:

transform in interface Shape2D

Parameters:

trans - an affine transform

Returns:

the transformed shape