net.java.dev.joode.util
Class ParametricSegment2D

java.lang.Object
  net.java.dev.joode.util.ParametricSegment2D

public class ParametricSegment2D
extends java.lang.Object

represents a line in the form (x,y) = P + tD where P is the start of the segment, U is the direction (normalized) where 0

Author:

Tom Larkworthy

Field Summary

Vector2	D
static Vector2	delta
static Vector2	deltaMinusT1D1 (delta - T1*D1)
static Vector2	deltaPlusT0D0 (delta + T0*D0)
static Vector2	deltaPlusT0D0MinusT1D1 (delta + T0*D0 - T1*D1)
Vector2	Dperp
static Vector2	intersection
Vector2	P
float	T

Constructor Summary

ParametricSegment2D()

Method Summary

boolean	intersect(ParametricSegment2D other, Vector2 passback)
void	set(Vector2 start, Vector2 end) sets the equation up to create a segment between the two specified points
void	set(Vector2 start, Vector2 end, boolean isRay) sets the equation up to create a segment/ray between the two specified points

Methods inherited from class java.lang.Object

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

Field Detail

delta

public static final Vector2 delta

intersection

public static final Vector2 intersection

deltaPlusT0D0

public static final Vector2 deltaPlusT0D0

(delta + T0*D0)

deltaMinusT1D1

public static final Vector2 deltaMinusT1D1

(delta - T1*D1)

deltaPlusT0D0MinusT1D1

public static final Vector2 deltaPlusT0D0MinusT1D1

(delta + T0*D0 - T1*D1)

T

public float T

P

public final Vector2 P

D

public final Vector2 D

Dperp

public final Vector2 Dperp

Constructor Detail

ParametricSegment2D

public ParametricSegment2D()

Method Detail

set

public void set(Vector2 start,
                Vector2 end,
                boolean isRay)

sets the equation up to create a segment/ray between the two specified points

Parameters:

start -

end -

isRay, - if isRay is true, then T is infinity and the object represents a Ray

set

public void set(Vector2 start,
                Vector2 end)

sets the equation up to create a segment between the two specified points

Parameters:

start -

end -

intersect

public boolean intersect(ParametricSegment2D other,
                         Vector2 passback)