math.geom3d.plane

Class Plane3DCoordinateSubsystem

java.lang.Object

math.geom3d.plane.Plane3DCoordinateSubsystem

public class Plane3DCoordinateSubsystem
extends Object

3D plane coordinate subsystem. Plane origin becomes (0, 0) in the coordinate subsystem. Plane vectors (vector1, vector2) are orthonormalized to become (x unit vector, y unit vector) of the coordinate subsystem.

Field Summary

Fields

Modifier and Type	Field and Description
protected Vector3D	xUnitVector
protected Vector3D	yUnitVector

Constructor Summary

Constructors

Constructor and Description
Plane3DCoordinateSubsystem(Plane3D plane)

Method Summary

Modifier and Type	Method and Description
Point3D	get(Point2D point) Get 3D coords of a point within the coordinate subsystem
Vector3D	getXUnitVector() Get X unit vector
Vector3D	getYUnitVector() Get Y unit vector
LineSegment2D	project(LineSegment3D lineSegment3D) Project line segment
Point2D	project(Point3D point) Project a point to 2D coordinate subsystem of the plane
SimplePolygon2D	project(SimplePlanarPolygon3D polygon3d) Project polygon

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

xUnitVector

protected Vector3D xUnitVector

yUnitVector

protected Vector3D yUnitVector

Constructor Detail

Plane3DCoordinateSubsystem

public Plane3DCoordinateSubsystem(Plane3D plane)

Method Detail

getXUnitVector

public Vector3D getXUnitVector()

Get X unit vector

Returns:

3D vector of 1 unit on the coordinate subsystem X axis

getYUnitVector

public Vector3D getYUnitVector()

Get Y unit vector

Returns:

3D vector of 1 unit on the coordinate subsystem Y axis

project

public Point2D project(Point3D point)

Project a point to 2D coordinate subsystem of the plane

Parameters:

point - point to project onto plane and then compute its coordinates in coordinate subsystem of the plane.

Returns:

2D coordinates in coordinate subsystem of the plane

project

public SimplePolygon2D project(SimplePlanarPolygon3D polygon3d)

Project polygon

Parameters:

polygon3d - polygon in ambient space

Returns:

2D polygon in the coordinate subsystem

project

public LineSegment2D project(LineSegment3D lineSegment3D)

Project line segment

Parameters:

lineSegment3D - line segment in ambient space

Returns:

2D line segment in the coordinate subsystem

get

public Point3D get(Point2D point)

Get 3D coords of a point within the coordinate subsystem

Parameters:

point - coordinates in the coordinate subsystem

Returns:

point in 3D