Package com.jogamp.opengl.math.geom

Class Frustum.Plane

java.lang.Object

com.jogamp.opengl.math.geom.Frustum.Plane

Enclosing class:

Frustum

public static class Frustum.Plane
extends Object

Plane equation := dot(n, x - p) = 0 -> ax + bc + cx + d == 0

In order to work w/ isOutside(..) methods, the normals have to point to the inside of the frustum.

Field Summary

Fields

Modifier and Type	Field	Description
float	d	Distance to origin
float[]	n	Normal of the plane

Constructor Summary

Constructors

Constructor	Description
Plane()

Method Summary

Modifier and Type	Method	Description
float	distanceTo(float[] p)	Return distance of plane to given point, see distanceTo(float, float, float).
float	distanceTo(float x, float y, float z)	Return signed distance of plane to given point.
String	toString()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

n

public final float[] n

Normal of the plane

d

public float d

Distance to origin

Constructor Detail

Plane

public Plane()

Method Detail

distanceTo

public final float distanceTo(float x,
                              float y,
                              float z)

Return signed distance of plane to given point.

• If dist < 0 , then the point p lies in the negative halfspace.
• If dist = 0 , then the point p lies in the plane.
• If dist > 0 , then the point p lies in the positive halfspace.

A plane cuts 3D space into 2 half spaces.

Positive halfspace is where the plane’s normals vector points into.

Negative halfspace is the other side of the plane, i.e. *-1

distanceTo

public final float distanceTo(float[] p)

Return distance of plane to given point, see distanceTo(float, float, float).

toString

public String toString()

Overrides:

toString in class Object