Package org.jzy3d.maths

Class Normal

java.lang.Object

org.jzy3d.maths.Normal

public class Normal
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static enum	Normal.NormalMode	Indicates how the normal of a vertex is computed SHARED: as a mean of all polygons that the vertex belongs to.
static enum	Normal.NormalPer	Indicate if normals are defined per point or per geometry.

Constructor Summary

Constructors

Constructor	Description
Normal()

Method Summary

Modifier and Type	Method	Description
static Coord3d	compute(List<Point> points, boolean normalize, boolean averageNormals)	Compute the normal for the input list of points.
static Coord3d	compute(Coord3d p0, Coord3d p1, Coord3d p2)	Compute the normal for the three points which is a vector perpendicular to the plane formed by the three input points.
static Coord3d	compute(Coord3d p0, Coord3d p1, Coord3d p2, boolean normalize)	Compute the normal for the three points which is a vector perpendicular to the plane formed by the three input points.

Methods inherited from class java.lang.Object

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

Constructor Details

Normal

public Normal()

Method Details

compute

public static Coord3d compute(Coord3d p0,
 Coord3d p1,
 Coord3d p2)

Compute the normal for the three points which is a vector perpendicular to the plane formed by the three input points.

compute

public static Coord3d compute(Coord3d p0,
 Coord3d p1,
 Coord3d p2,
 boolean normalize)

Compute the normal for the three points which is a vector perpendicular to the plane formed by the three input points.

Parameters:

normalize - if true, will divise normal components by the length of the normal

compute

public static Coord3d compute(List<Point> points,
 boolean normalize,
 boolean averageNormals)

Compute the normal for the input list of points.

Parameters:

points -

normalize - if true, will divise normal components by the length of the normal

averageNormals - if true and if points.size() > 3, will compute a normal for each triangle and then process an average normal of all triangles. If false, simply process normal out of the three first points, hence assuming coplanarity of the points.

Returns: