public class AxesAlignedConstrained extends Axes
Principal
(get
/ set
) direction vector and another axis
constrained to minimize the angular separation from the Reference
(get
/ set
) vector. These axes
remain aligned and constrained as the Principal
(get
/ set
) and Reference
(get
/ set
) vectors
change with time. By default, the principal axis is the xaxis and the reference axis is along the zaxis.Modifier  Constructor and Description 


AxesAlignedConstrained()
Initializes a new instance.

protected 
AxesAlignedConstrained(AxesAlignedConstrained existingInstance,
CopyContext context)
Initializes a new instance as a copy of an existing instance.


AxesAlignedConstrained(Vector principal,
AxisIndicator principalAxis,
Vector reference,
AxisIndicator referenceAxis)
Initializes a new instance.


AxesAlignedConstrained(Vector principal,
Vector reference)
Initializes a new instance.

Modifier and Type  Method and Description 

protected boolean 
checkForSameDefinition(Axes other)
Checks to determine if another instance has the same definition as this instance and
returns
true if it does. 
protected boolean 
checkForSameDefinition(AxesAlignedConstrained other)
Checks to determine if another instance has the same definition as this instance and
returns
true if it does. 
Object 
clone(CopyContext context)
Clones this object using the specified context.

protected int 
computeCurrentDefinitionHashCode()
Computes a hash code based on the current properties of this object.

static UnitQuaternion 
computeTransformation(Cartesian principal,
AxisIndicator principalAxis,
Cartesian reference,
AxisIndicator referenceAxis)
Given a principal and reference vector expressed in the same set of axes, computes a transformation that
will take a vector expressed in that set of axes and expresses it in the alignedconstrained axes.

static UnitQuaternion 
computeTransformation(Cartesian principal,
Cartesian reference)
Given a principal and reference vector expressed in the same set of axes, computes a transformation that
will take a vector expressed in that set of axes and expresses it in the alignedconstrained axes.

static Motion2<UnitQuaternion,Cartesian> 
computeTransformation(Motion1<Cartesian> principal,
AxisIndicator principalAxis,
Motion1<Cartesian> reference,
AxisIndicator referenceAxis,
int order)
Given a principal and reference vector expressed in the same set of axes, computes a transformation that
will take a vector expressed in that set of axes and expresses it in the alignedconstrained axes.

static Motion2<UnitQuaternion,Cartesian> 
computeTransformation(Motion1<Cartesian> principal,
Motion1<Cartesian> reference,
int order)
Given a principal and reference vector expressed in the same set of axes, computes a transformation that
will take a vector expressed in that set of axes and expresses it in the alignedconstrained axes.

static Motion2<UnitQuaternion,Cartesian> 
computeTransformation(Motion2<UnitCartesian,Cartesian> principal,
AxisIndicator principalAxis,
Motion2<UnitCartesian,Cartesian> reference,
AxisIndicator referenceAxis,
int order)
Given a principal and reference vector expressed in the same set of axes, computes a transformation that
will take a vector expressed in that set of axes and expresses it in the alignedconstrained axes.

static Motion2<UnitQuaternion,Cartesian> 
computeTransformation(Motion2<UnitCartesian,Cartesian> principal,
Motion2<UnitCartesian,Cartesian> reference,
int order)
Given a principal and reference vector expressed in the same set of axes, computes a transformation that
will take a vector expressed in that set of axes and expresses it in the alignedconstrained axes.

void 
enumerateDependencies(DependencyEnumerator enumerator)
Enumerates the dependencies of this object by calling
DependencyEnumerator#enumerate(T) for each object that this object directly depends upon. 
AxesEvaluator 
getEvaluator(EvaluatorGroup group)

Vector 
getPrincipal()
Gets the principal direction vector with which the Xaxis of this set of axes will be aligned.

AxisIndicator 
getPrincipalAxis()

Vector 
getReference()
Gets the reference direction vector.

AxisIndicator 
getReferenceAxis()

void 
setPrincipal(Vector value)
Sets the principal direction vector with which the Xaxis of this set of axes will be aligned.

void 
setPrincipalAxis(AxisIndicator value)

void 
setReference(Vector value)
Sets the reference direction vector.

void 
setReferenceAxis(AxisIndicator value)

checkForSameDefinition, getEvaluator, getRoot, getService, getVectorElement, getVectorElement
areSameDefinition, areSameDefinition, areSameDefinition, areSameDefinition, areSameDefinition, collectionItemsAreSameDefinition, collectionItemsAreSameDefinition, dictionaryItemsAreSameDefinition, freeze, freezeAggregatedObjects, getCollectionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDictionaryHashCode, getIsFrozen, isSameDefinition, throwIfFrozen
public AxesAlignedConstrained()
public AxesAlignedConstrained(Vector principal, Vector reference)
principal
 The principal direction vector with which the Xaxis of this set of axes will be aligned.reference
 The reference direction vector. The Zaxis of this set of axes will be constrained to minimize the angular separation from this vector.public AxesAlignedConstrained(Vector principal, @Nonnull AxisIndicator principalAxis, Vector reference, @Nonnull AxisIndicator referenceAxis)
principal
 The principal direction vector with which the principalAxis
of this set of axes will be aligned.principalAxis
 The axis along which the principal
vector is aligned.reference
 The reference direction vector. The referenceAxis
of this set of axes will be constrained to minimize the angular separation from this vector.referenceAxis
 The axis against which the reference
vector is constrained.IllegalStateException
 Thrown when the principalAxis
and referenceAxis
are identical.protected AxesAlignedConstrained(@Nonnull AxesAlignedConstrained existingInstance, @Nonnull CopyContext context)
See ICloneWithContext.clone(CopyContext)
for more information about how to implement this constructor
in a derived class.
existingInstance
 The existing instance to copy.context
 A CopyContext
that controls the depth of the copy.ArgumentNullException
 Thrown when existingInstance
or context
is null
.public Object clone(CopyContext context)
This method should be implemented to call a copy constructor on the class of the
object being cloned. The copy constructor should take the CopyContext
as a parameter
in addition to the existing instance to copy. The copy constructor should first call
CopyContext.addObjectMapping(T, T)
to identify the newly constructed instance
as a copy of the existing instance. It should then copy all fields, using
CopyContext.updateReference(T)
to copy any reference fields.
A typical implementation of ICloneWithContext
:
public static class MyClass implements ICloneWithContext {
public MyClass(MyClass existingInstance, CopyContext context) {
context.addObjectMapping(existingInstance, this);
someReference = context.updateReference(existingInstance.someReference);
}
@Override
public final Object clone(CopyContext context) {
return new MyClass(this, context);
}
private Object someReference;
}
In general, all fields that are reference types should be copied with a call to
CopyContext.updateReference(T)
. There are a couple of exceptions:
CopyContext
should be given an opportunity
to update the reference before the reference is copied explicitly. Use
CopyContext.updateReference(T)
to update the reference. If CopyContext.updateReference(T)
returns
the original object (that is, if the reference some field is equal to the reference of the same field of another instance))
then copy the object manually by invoking a Clone method, a copy constructor, or by manually
constructing a new instance and copying the values.
alwaysCopy = context.updateReference(existingInstance.alwaysCopy);
if (existingInstance.alwaysCopy != null && alwaysCopy == existingInstance.alwaysCopy) {
alwaysCopy = (AlwaysCopy) existingInstance.alwaysCopy.clone(context);
}
If you are implementing an evaluator (a class that implements IEvaluator
), the
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
method shares some responsibilities with the
copy context constructor. Code duplication can be avoided by doing the following:
CopyContext.updateReference(T)
. You should still call CopyContext.updateReference(T)
on any references to
nonevaluators.
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
as the last line in the constructor and pass it the
same CopyContext
passed to the constructor.
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
as normal. See the reference documentation for
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
for more information on implementing that method.
public MyClass(MyClass existingInstance, CopyContext context) {
super(existingInstance, context);
someReference = context.updateReference(existingInstance.someReference);
evaluatorReference = existingInstance.evaluatorReference;
updateEvaluatorReferences(context);
}
@Override
public void updateEvaluatorReferences(CopyContext context) {
evaluatorReference = context.updateReference(evaluatorReference);
}
@Override
public Object clone(CopyContext context) {
return new MyClass(this, context);
}
private Object someReference;
private IEvaluator evaluatorReference;
clone
in interface ICloneWithContext
clone
in class DefinitionalObject
context
 The context to use to perform the copy.protected final boolean checkForSameDefinition(Axes other)
true
if it does. Derived classes MUST override this method and check
all new fields introduced by the derived class for definitional equivalence. It is NOT necessary
to check base class fields because the base class will already have done that. When overriding this method,
you should NOT call the base implementation because it will return false
for all derivedclass instances.
Derived classes should check the type of other
to preserve the symmetric nature of IEquatableDefinition.isSameDefinition(java.lang.Object)
.checkForSameDefinition
in class Axes
other
 The other instance to compare to this one.true
if the two objects are defined equivalently, otherwise false
.protected boolean checkForSameDefinition(AxesAlignedConstrained other)
true
if it does. Derived classes MUST override this method and check
all new fields introduced by the derived class for definitional equivalence. It is NOT necessary
to check base class fields because the base class will already have done that. When overriding this method,
you should NOT call the base implementation because it will return false
for all derivedclass instances.
Derived classes should check the type of other
to preserve the symmetric nature of IEquatableDefinition.isSameDefinition(java.lang.Object)
.other
 The other instance to compare to this one.true
if the two objects are defined equivalently, otherwise false
.protected int computeCurrentDefinitionHashCode()
AxesAlignedConstrained.checkForSameDefinition(agi.foundation.geometry.Axes)
method.computeCurrentDefinitionHashCode
in class Axes
public void enumerateDependencies(DependencyEnumerator enumerator)
DependencyEnumerator#enumerate(T)
for each object that this object directly depends upon.
Derived classes which contain additional dependencies MUST override this method, call the base
implementation, and enumerate dependencies introduced by the derived class.enumerateDependencies
in interface IEnumerateDependencies
enumerateDependencies
in class DefinitionalObject
enumerator
 The enumerator that is informed of the dependencies of this object.public final Vector getPrincipal()
public final void setPrincipal(Vector value)
public final Vector getReference()
public final void setReference(Vector value)
@Nonnull public final AxisIndicator getPrincipalAxis()
public final void setPrincipalAxis(@Nonnull AxisIndicator value)
@Nonnull public final AxisIndicator getReferenceAxis()
public final void setReferenceAxis(@Nonnull AxisIndicator value)
public AxesEvaluator getEvaluator(EvaluatorGroup group)
Principal
(get
/ set
)'s Axes
to
a new Axes
defined by the Principal
(get
/ set
) and Reference
(get
/ set
) vectors
at a given JulianDate
. The new axes will be represented by
a Motion
<UnitQuaternion
, Cartesian
>
specifying the orientation of these Axes
. Derivative information is provided if
Principal
(get
/ set
) and Reference
(get
/ set
) provide their derivatives.
Consider using the methods of GeometryTransformer
instead of calling this method directly.getEvaluator
in class Axes
group
 The group with which to associate the new evaluator. By grouping evaluators
that are often evaluated at the same Julian dates, common computations can be performed only once
for the entire group instead of multiple times for each evaluator.ArgumentNullException
 Thrown when group
is null
.PropertyInvalidException
 Thrown when Principal
(get
/ set
) or Reference
(get
/ set
) is null
.@Nonnull public static UnitQuaternion computeTransformation(@Nonnull Cartesian principal, @Nonnull Cartesian reference)
principal
 The principal direction vector with which the Xaxis will be aligned.reference
 The reference direction vector. The Zaxis will be constrained to minimize the angular separation from this vector.@Nonnull public static UnitQuaternion computeTransformation(@Nonnull Cartesian principal, @Nonnull AxisIndicator principalAxis, @Nonnull Cartesian reference, @Nonnull AxisIndicator referenceAxis)
principal
 The principal direction vector with which the principalAxis
will be aligned.principalAxis
 The axis along which the principal
vector is aligned.reference
 The reference direction vector. The referenceAxis
will be constrained to
minimize the angular separation from this vector.referenceAxis
 The axis against which the reference
vector is constrained.@Nonnull public static Motion2<UnitQuaternion,Cartesian> computeTransformation(@Nonnull Motion1<Cartesian> principal, @Nonnull Motion1<Cartesian> reference, int order)
principal
 The principal direction vector with which the Xaxis will be aligned.reference
 The reference direction vector. The Zaxis will be constrained to minimize the angular separation from this vector.order
 The order of the highest derivative to compute. To compute just the rotation, pass 0 for this value. To compute rotational velocity as well, pass 1.@Nonnull public static Motion2<UnitQuaternion,Cartesian> computeTransformation(@Nonnull Motion2<UnitCartesian,Cartesian> principal, @Nonnull Motion2<UnitCartesian,Cartesian> reference, int order)
principal
 The principal direction vector with which the Xaxis will be aligned.reference
 The reference direction vector. The Zaxis will be constrained to minimize the angular separation from this vector.order
 The order of the highest derivative to compute. To compute just the rotation, pass 0 for this value. To compute rotational velocity as well, pass 1.@Nonnull public static Motion2<UnitQuaternion,Cartesian> computeTransformation(@Nonnull Motion1<Cartesian> principal, @Nonnull AxisIndicator principalAxis, @Nonnull Motion1<Cartesian> reference, @Nonnull AxisIndicator referenceAxis, int order)
principal
 The principal direction vector with which the principalAxis
will be aligned.principalAxis
 The axis along which the principal
vector is aligned.reference
 The reference direction vector. The referenceAxis
will be constrained to
minimize the angular separation from this vector.referenceAxis
 The axis against which the reference
vector is constrained.order
 The order of the highest derivative to compute. To compute just the rotation, pass 0 for this value. To compute rotational velocity as well, pass 1.@Nonnull public static Motion2<UnitQuaternion,Cartesian> computeTransformation(@Nonnull Motion2<UnitCartesian,Cartesian> principal, @Nonnull AxisIndicator principalAxis, @Nonnull Motion2<UnitCartesian,Cartesian> reference, @Nonnull AxisIndicator referenceAxis, int order)
principal
 The principal direction vector with which the principalAxis
will be aligned.principalAxis
 The axis along which the principal
vector is aligned.reference
 The reference direction vector. The referenceAxis
will be constrained to
minimize the angular separation from this vector.referenceAxis
 The axis against which the reference
vector is constrained.order
 The order of the highest derivative to compute. To compute just the rotation, pass 0 for this value. To compute rotational velocity as well, pass 1.