java.lang.Object
- org.jzy3d.maths.Angle3d

```
public class Angle3d
extends Object
```
An Angle3d stores three 3d points, considering the angle is on the second one. An instance may return angle(), cos() and sin().

Field Summary

Fields
Modifier and Type	Field	Description
`static float`	`DEGREE_45`
`static double`	`DEGREE_45_D`
`static float`	`DEGREE_90`
`static double`	`DEGREE_90_D`
`protected float`	`x1`
`protected float`	`x2`
`protected float`	`x3`
`protected float`	`y1`
`protected float`	`y2`
`protected float`	`y3`
`protected float`	`z1`
`protected float`	`z2`
`protected float`	`z3`

Constructor Summary

Constructors
Constructor	Description
`Angle3d(float x1, float y1, float z1, float x2, float y2, float z2, float x3, float y3, float z3)`	Create an angle, described by three points.
`Angle3d(Coord3d p1, Coord3d p2, Coord3d p3)`	Create an angle, described by three coordinates.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`float`	`angle()`	Computes the angle at vertex p2 between rays p1,p2 and p3,p2.
`double`	`angleD()`	Computes the angle at vertex p2 between rays p1,p2 and p3,p2.
`static double`	`angleSum(List<Coord3d> coords)`	Compute the sum of all angles in the input coordinate list.
`static double`	`angleSumFromPoints(List<Point> coords)`
`static boolean`	`angleSumFromPointsOfNonIntersectingPolygon(List<Point> coords)`
`static double`	`angleSumOfNonIntersectingPolygon(int n)`	Returns the expected sum of all angles of a polygon given its number of points.
`static double`	`angleSumOfNonIntersectingPolygonRad(int n)`
`float`	`cos()`	Computes cosinus of the angle
`float`	`sin()`	Computes the sinus of the angle, by creating a fourth point on an orthogonal direction.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEGREE_90_D
```
public static final double DEGREE_90_D
```
    See Also:
    
    Constant Field Values
  - DEGREE_90
```
public static final float DEGREE_90
```
    See Also:
    
    Constant Field Values
  - DEGREE_45_D
```
public static final double DEGREE_45_D
```
    See Also:
    
    Constant Field Values
  - DEGREE_45
```
public static final float DEGREE_45
```
    See Also:
    
    Constant Field Values
  - x1
```
protected float x1
```
  - x2
```
protected float x2
```
  - x3
```
protected float x3
```
  - y1
```
protected float y1
```
  - y2
```
protected float y2
```
  - y3
```
protected float y3
```
  - z1
```
protected float z1
```
  - z2
```
protected float z2
```
  - z3
```
protected float z3
```
- Constructor Detail
  - Angle3d
```
public Angle3d(float x1,
               float y1,
               float z1,
               float x2,
               float y2,
               float z2,
               float x3,
               float y3,
               float z3)
```
    Create an angle, described by three points. The angle is supposed to be on p2
  - Angle3d
```
public Angle3d(Coord3d p1,
               Coord3d p2,
               Coord3d p3)
```
    Create an angle, described by three coordinates. The angle is supposed to be on p2
- Method Detail
  - sin
```
public float sin()
```
    Computes the sinus of the angle, by creating a fourth point on an orthogonal direction.
  - cos
```
public float cos()
```
    Computes cosinus of the angle
  - angle
```
public float angle()
```
    Computes the angle at vertex p2 between rays p1,p2 and p3,p2. Returns 0 to PI radians.
  - angleD
```
public double angleD()
```
    Computes the angle at vertex p2 between rays p1,p2 and p3,p2. Returns 0 to PI radians.
  - angleSum
```
public static double angleSum(List<Coord3d> coords)
```
    Compute the sum of all angles in the input coordinate list. If input contains point A, B, C, this method will compute angles ABC, BCA, CAB. An error is thrown if there are less than 3 points.
  - angleSumFromPoints
```
public static double angleSumFromPoints(List<Point> coords)
```
  - angleSumOfNonIntersectingPolygon
```
public static double angleSumOfNonIntersectingPolygon(int n)
```
    Returns the expected sum of all angles of a polygon given its number of points. The polygon is supposed to not have any edge crossing another edge.
    
    Parameters:
    
    n -
    
    Returns:
  - angleSumOfNonIntersectingPolygonRad
```
public static double angleSumOfNonIntersectingPolygonRad(int n)
```
  - angleSumFromPointsOfNonIntersectingPolygon
```
public static boolean angleSumFromPointsOfNonIntersectingPolygon(List<Point> coords)
```

Class Angle3d

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

DEGREE_90_D

DEGREE_90

DEGREE_45_D

DEGREE_45

x1

x2

x3

y1

y2

y3

z1

z2

z3

Constructor Detail

Angle3d

Angle3d

Method Detail

sin

cos

angle

angleD

angleSum

angleSumFromPoints

angleSumOfNonIntersectingPolygon

angleSumOfNonIntersectingPolygonRad

angleSumFromPointsOfNonIntersectingPolygon