SphereSampler

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java.lang.Object
- org.biojava.nbio.structure.symmetry.geometry.SphereSampler

```
public final class SphereSampler
extends java.lang.Object
```
Sample possible orientations. An orientation can be represented as a quaternion or as a rotation axis and angle. The orientations are somewhat evenly distributed over orientation space, but the current implementation is not suited for statistically uniform sampling.

Author:

Peter

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static void`	`getAxisAngle(int index, javax.vecmath.AxisAngle4d axisAngle)`
`static void`	`getAxisAngle(int index, javax.vecmath.AxisAngle4f axisAngle)`
`static javax.vecmath.Quat4d`	`getQuat4d(int index)`
`static int`	`getSphereCount()`

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

Method Detail

getSphereCount
```
public static int getSphereCount()
```

getQuat4d

public static javax.vecmath.Quat4d getQuat4d(int index)

getAxisAngle

public static void getAxisAngle(int index,
                                javax.vecmath.AxisAngle4f axisAngle)

getAxisAngle
```
public static void getAxisAngle(int index,
                                javax.vecmath.AxisAngle4d axisAngle)
```
Parameters:

index - Index between 0 and getSphereCount()-1

axisAngle - (Output) modified to contain the index-th sampled orientation

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