BornAgain  1.19.79
Open-source research software to simulate and fit neutron and x-ray reflectometry and grazing-incidence small-angle scattering
Sphere Class Reference

Description

A full sphere.

Definition at line 23 of file Sphere.h.

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Public Member Functions

 Sphere (double radius, bool position_at_center=false)
 
 Sphere (std::vector< double > P, bool position_at_center=false)
 
double bottomZ (const IRotation *rotation) const override
 
void checkNodeArgs () const
 Raises exception if a parameter value is invalid. More...
 
std::string className () const final
 Returns the class name, to be hard-coded in each leaf class that inherits from INode. More...
 
Sphereclone () const override
 Returns a clone of this ISampleNode object. More...
 
std::vector< const Material * > containedMaterials () const
 Returns set of unique materials contained in this ISampleNode. More...
 
complex_t formfactor_at_bottom (C3 q) const override
 
virtual SpinMatrix formfactor_pol (C3 q) const
 Returns scattering amplitude for complex scattering wavevector q=k_i-k_f in case of matrix interactions. Default implementation calls formfactor_at_bottom(q) and multiplies with the unit matrix. More...
 
bool isMagnetic () const
 Returns true if there is any magnetic material in this ISampleNode. More...
 
virtual const Materialmaterial () const
 Returns nullptr, unless overwritten to return a specific material. More...
 
virtual std::vector< const INode * > nodeChildren () const
 Returns all children. More...
 
std::vector< const INode * > nodeOffspring () const
 Returns all descendants. More...
 
std::vector< ParaMetaparDefs () const final
 Returns the parameter definitions, to be hard-coded in each leaf class. More...
 
virtual std::string pythonConstructor () const
 Creates the Python constructor of this class (or derived classes) More...
 
double radialExtension () const override
 Returns the (approximate in some cases) radial size of the particle of this form factor's shape. This is used for SSCA calculations. More...
 
double radius () const
 
std::string shapeName () const
 
virtual complex_t theFF (const WavevectorInfo &wavevectors) const
 
virtual SpinMatrix thePolFF (const WavevectorInfo &wavevectors) const
 
double topZ (const IRotation *rotation) const override
 
virtual void transferToCPP ()
 Used for Python overriding of clone (see swig/tweaks.py) More...
 
virtual double volume () const
 

Protected Member Functions

bool canSliceAnalytically (const IRotation *) const override
 Default implementation only allows rotations along z-axis. More...
 

Protected Attributes

std::vector< double > m_P
 
std::unique_ptr< IShape3Dm_shape3D
 IShape3D object, used to retrieve vertices (which may be approximate in the case of round shapes). For soft particles, this will be a hard mean shape. More...
 

Private Attributes

bool m_position_at_center
 
const double & m_radius
 

Constructor & Destructor Documentation

◆ Sphere() [1/2]

Sphere::Sphere ( double  radius,
bool  position_at_center = false 
)

Definition at line 29 of file Sphere.cpp.

30  : Sphere(std::vector<double>{radius}, position_at_center)
31 {
32 }
double radius() const
Definition: Sphere.h:34
Sphere(double radius, bool position_at_center=false)
Definition: Sphere.cpp:29

References radius().

Referenced by clone().

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◆ Sphere() [2/2]

Sphere::Sphere ( std::vector< double >  P,
bool  position_at_center = false 
)

Definition at line 21 of file Sphere.cpp.

22  : IFormFactor(P)
23  , m_radius(m_P[0])
24  , m_position_at_center(position_at_center)
25 {
26  checkNodeArgs();
27 }
void checkNodeArgs() const
Raises exception if a parameter value is invalid.
Definition: INode.cpp:27
std::vector< double > m_P
Definition: INode.h:63
const double & m_radius
Definition: Sphere.h:48
bool m_position_at_center
Definition: Sphere.h:49

References INode::checkNodeArgs().

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Member Function Documentation

◆ bottomZ()

double Sphere::bottomZ ( const IRotation rotation) const
overridevirtual

Reimplemented from IFormFactor.

Definition at line 34 of file Sphere.cpp.

35 {
37  return -m_radius;
38  if (!rotation)
39  return 0;
40  R3 centre(0.0, 0.0, m_radius);
41  R3 new_centre = rotation->transformed(centre);
42  return new_centre.z() - m_radius;
43 }
R3 transformed(const R3 &v) const
Definition: Rotations.cpp:42

References m_position_at_center, m_radius, and IRotation::transformed().

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◆ canSliceAnalytically()

bool Sphere::canSliceAnalytically ( const IRotation rot) const
inlineoverrideprotectedvirtual

Default implementation only allows rotations along z-axis.

Reimplemented from IFormFactor.

Definition at line 45 of file Sphere.h.

45 { return true; }

◆ checkNodeArgs()

void INode::checkNodeArgs ( ) const
inherited

Raises exception if a parameter value is invalid.

Definition at line 27 of file INode.cpp.

28 {
29  size_t nP = m_P.size();
30  if (parDefs().size() != nP) {
31  std::cerr << "BUG in class " << className() << std::endl;
32  std::cerr << "#m_P = " << nP << std::endl;
33  std::cerr << "#PDf = " << parDefs().size() << std::endl;
34  for (const ParaMeta& pm : parDefs())
35  std::cerr << " PDf: " << pm.name << std::endl;
36  ASSERT(0);
37  }
38  ASSERT(parDefs().size() == nP);
39  for (size_t i = 0; i < nP; ++i) {
40  const ParaMeta pm = parDefs()[i];
41 
43  if (pm.vMin == -INF) {
44  ASSERT(pm.vMax == +INF);
45  // nothing to do
46  } else if (pm.vMax == +INF) {
47  ASSERT(pm.vMin == 0);
48  limits = RealLimits::nonnegative();
49  } else {
50  limits = RealLimits::limited(pm.vMin, pm.vMax);
51  }
52  limits.check(pm.name, m_P[i]);
53  }
54 }
#define ASSERT(condition)
Definition: Assert.h:45
const double INF
Definition: INode.h:26
virtual std::vector< ParaMeta > parDefs() const
Returns the parameter definitions, to be hard-coded in each leaf class.
Definition: INode.h:51
virtual std::string className() const =0
Returns the class name, to be hard-coded in each leaf class that inherits from INode.
Limits for a real fit parameter.
Definition: RealLimits.h:24
static RealLimits limitless()
Creates an object without bounds (default)
Definition: RealLimits.cpp:139
void check(const std::string &name, double value) const
Throws if value is outside limits. Parameter 'name' is for exception message.
Definition: RealLimits.cpp:170
static RealLimits nonnegative()
Creates an object which can have only positive values with 0. included.
Definition: RealLimits.cpp:124
static RealLimits limited(double left_bound_value, double right_bound_value)
Creates an object bounded from the left and right.
Definition: RealLimits.cpp:134
Metadata of one model parameter.
Definition: INode.h:29
double vMin
Definition: INode.h:33
double vMax
Definition: INode.h:34
std::string name
Definition: INode.h:30

References ASSERT, RealLimits::check(), INode::className(), INF, RealLimits::limited(), RealLimits::limitless(), INode::m_P, ParaMeta::name, RealLimits::nonnegative(), INode::parDefs(), ParaMeta::vMax, and ParaMeta::vMin.

Referenced by BarGauss::BarGauss(), BarLorentz::BarLorentz(), Bipyramid4::Bipyramid4(), Box::Box(), CantellatedCube::CantellatedCube(), Cone::Cone(), ConstantBackground::ConstantBackground(), CosineRippleBox::CosineRippleBox(), CosineRippleGauss::CosineRippleGauss(), CosineRippleLorentz::CosineRippleLorentz(), Cylinder::Cylinder(), DistributionCosine::DistributionCosine(), DistributionGate::DistributionGate(), DistributionGaussian::DistributionGaussian(), DistributionLogNormal::DistributionLogNormal(), DistributionLorentz::DistributionLorentz(), DistributionTrapezoid::DistributionTrapezoid(), Dodecahedron::Dodecahedron(), EllipsoidalCylinder::EllipsoidalCylinder(), FootprintGauss::FootprintGauss(), FootprintSquare::FootprintSquare(), FuzzySphere::FuzzySphere(), GaussSphere::GaussSphere(), HemiEllipsoid::HemiEllipsoid(), HollowSphere::HollowSphere(), HorizontalCylinder::HorizontalCylinder(), Icosahedron::Icosahedron(), LongBoxGauss::LongBoxGauss(), LongBoxLorentz::LongBoxLorentz(), PlatonicOctahedron::PlatonicOctahedron(), PlatonicTetrahedron::PlatonicTetrahedron(), Prism3::Prism3(), Prism6::Prism6(), Profile1DCauchy::Profile1DCauchy(), Profile1DCosine::Profile1DCosine(), Profile1DGate::Profile1DGate(), Profile1DGauss::Profile1DGauss(), Profile1DTriangle::Profile1DTriangle(), Profile1DVoigt::Profile1DVoigt(), Profile2DCauchy::Profile2DCauchy(), Profile2DCone::Profile2DCone(), Profile2DGate::Profile2DGate(), Profile2DGauss::Profile2DGauss(), Profile2DVoigt::Profile2DVoigt(), Pyramid2::Pyramid2(), Pyramid3::Pyramid3(), Pyramid4::Pyramid4(), Pyramid6::Pyramid6(), RotationEuler::RotationEuler(), RotationX::RotationX(), RotationY::RotationY(), RotationZ::RotationZ(), SawtoothRippleBox::SawtoothRippleBox(), SawtoothRippleGauss::SawtoothRippleGauss(), SawtoothRippleLorentz::SawtoothRippleLorentz(), Sphere(), Spheroid::Spheroid(), TruncatedCube::TruncatedCube(), TruncatedSphere::TruncatedSphere(), and TruncatedSpheroid::TruncatedSpheroid().

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◆ className()

std::string Sphere::className ( ) const
inlinefinalvirtual

Returns the class name, to be hard-coded in each leaf class that inherits from INode.

Implements INode.

Definition at line 30 of file Sphere.h.

30 { return "Sphere"; }

◆ clone()

Sphere* Sphere::clone ( ) const
inlineoverridevirtual

Returns a clone of this ISampleNode object.

Implements IFormFactor.

Definition at line 29 of file Sphere.h.

29 { return new Sphere(m_radius, m_position_at_center); }

References Sphere(), m_position_at_center, and m_radius.

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◆ containedMaterials()

std::vector< const Material * > ISampleNode::containedMaterials ( ) const
inherited

Returns set of unique materials contained in this ISampleNode.

Definition at line 25 of file ISampleNode.cpp.

26 {
27  std::vector<const Material*> result;
28  if (const Material* p_material = material())
29  result.push_back(p_material);
30  for (const auto* child : nodeChildren()) {
31  if (const auto* sample = dynamic_cast<const ISampleNode*>(child)) {
32  for (const Material* p_material : sample->containedMaterials())
33  result.push_back(p_material);
34  }
35  }
36  return result;
37 }
virtual std::vector< const INode * > nodeChildren() const
Returns all children.
Definition: INode.cpp:56
Abstract base class for sample components and properties related to scattering.
Definition: ISampleNode.h:27
virtual const Material * material() const
Returns nullptr, unless overwritten to return a specific material.
Definition: ISampleNode.h:36
A wrapper for underlying material implementation.
Definition: Material.h:35

References ISampleNode::material(), and INode::nodeChildren().

Referenced by SampleUtils::Multilayer::ContainsCompatibleMaterials(), SampleToPython::initLabels(), and ISampleNode::isMagnetic().

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◆ formfactor_at_bottom()

complex_t Sphere::formfactor_at_bottom ( C3  q) const
overridevirtual

Implements IFormFactor.

Definition at line 56 of file Sphere.cpp.

57 {
58  complex_t result = SampleUtils::someff::ffSphere(q, m_radius);
60  result *= exp_I(q.z() * m_radius);
61  return result;
62 }
complex_t ffSphere(C3 q, double R)
Returns the form factor of a sphere of radius R.

References SampleUtils::someff::ffSphere(), m_position_at_center, and m_radius.

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◆ formfactor_pol()

SpinMatrix IFormFactor::formfactor_pol ( C3  q) const
virtualinherited

Returns scattering amplitude for complex scattering wavevector q=k_i-k_f in case of matrix interactions. Default implementation calls formfactor_at_bottom(q) and multiplies with the unit matrix.

Definition at line 78 of file IFormFactor.cpp.

79 {
81 }
virtual complex_t formfactor_at_bottom(C3 q) const =0
static SpinMatrix One()
Definition: SpinMatrix.cpp:36

References IFormFactor::formfactor_at_bottom(), and SpinMatrix::One().

Referenced by IFormFactor::thePolFF().

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◆ isMagnetic()

bool ISampleNode::isMagnetic ( ) const
inherited

Returns true if there is any magnetic material in this ISampleNode.

Definition at line 39 of file ISampleNode.cpp.

40 {
41  const auto materials = containedMaterials();
42  return std::any_of(materials.cbegin(), materials.cend(),
43  [](const Material* mat) { return mat->isMagneticMaterial(); });
44 }
std::vector< const Material * > containedMaterials() const
Returns set of unique materials contained in this ISampleNode.
Definition: ISampleNode.cpp:25

References ISampleNode::containedMaterials().

Referenced by reSample::make().

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◆ material()

virtual const Material* ISampleNode::material ( ) const
inlinevirtualinherited

Returns nullptr, unless overwritten to return a specific material.

Reimplemented in Particle, and Layer.

Definition at line 36 of file ISampleNode.h.

36 { return nullptr; }

Referenced by ISampleNode::containedMaterials().

◆ nodeChildren()

◆ nodeOffspring()

std::vector< const INode * > INode::nodeOffspring ( ) const
inherited

Returns all descendants.

Definition at line 61 of file INode.cpp.

62 {
63  std::vector<const INode*> result;
64  result.push_back(this);
65  for (const auto* child : nodeChildren()) {
66  for (const auto* p : child->nodeOffspring())
67  result.push_back(p);
68  }
69  return result;
70 }

References INode::nodeChildren().

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◆ parDefs()

std::vector<ParaMeta> Sphere::parDefs ( ) const
inlinefinalvirtual

Returns the parameter definitions, to be hard-coded in each leaf class.

Reimplemented from INode.

Definition at line 32 of file Sphere.h.

32 { return {{"Radius", "nm", "radius", 0, +INF, 0}}; }

References INF.

◆ pythonConstructor()

std::string IFormFactor::pythonConstructor ( ) const
virtualinherited

Creates the Python constructor of this class (or derived classes)

Definition at line 69 of file IFormFactor.cpp.

70 {
71  std::vector<std::pair<double, std::string>> arguments;
72  for (size_t i = 0; i < parDefs().size(); i++)
73  arguments.emplace_back(m_P[i], parDefs()[i].unit);
74 
75  return Py::Fmt::printFunction(className(), arguments);
76 }
std::string printFunction(const std::string &name, const std::vector< std::pair< double, std::string >> &arguments)
Print a function in the form "<name>(<arguments>)". arguments will be processed by printArguments(),...
Definition: PyFmt.cpp:168

References INode::className(), INode::m_P, INode::parDefs(), and Py::Fmt::printFunction().

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◆ radialExtension()

double Sphere::radialExtension ( ) const
inlineoverridevirtual

Returns the (approximate in some cases) radial size of the particle of this form factor's shape. This is used for SSCA calculations.

Implements IFormFactor.

Definition at line 36 of file Sphere.h.

36 { return m_radius; }

References m_radius.

◆ radius()

double Sphere::radius ( ) const
inline

Definition at line 34 of file Sphere.h.

34 { return m_radius; }

References m_radius.

Referenced by Sphere().

◆ shapeName()

std::string IFormFactor::shapeName ( ) const
inherited

Definition at line 33 of file IFormFactor.cpp.

34 {
35  if (className().substr(0, 10) == "FormFactor")
36  return className().substr(10);
37  return className();
38 }

References INode::className().

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◆ theFF()

complex_t IFormFactor::theFF ( const WavevectorInfo wavevectors) const
virtualinherited

Definition at line 40 of file IFormFactor.cpp.

41 {
42  return formfactor_at_bottom(wavevectors.getQ());
43 }
C3 getQ() const

References IFormFactor::formfactor_at_bottom(), and WavevectorInfo::getQ().

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◆ thePolFF()

SpinMatrix IFormFactor::thePolFF ( const WavevectorInfo wavevectors) const
virtualinherited

Definition at line 45 of file IFormFactor.cpp.

46 {
47  return formfactor_pol(wavevectors.getQ());
48 }
virtual SpinMatrix formfactor_pol(C3 q) const
Returns scattering amplitude for complex scattering wavevector q=k_i-k_f in case of matrix interactio...
Definition: IFormFactor.cpp:78

References IFormFactor::formfactor_pol(), and WavevectorInfo::getQ().

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◆ topZ()

double Sphere::topZ ( const IRotation rotation) const
overridevirtual

Reimplemented from IFormFactor.

Definition at line 45 of file Sphere.cpp.

46 {
48  return m_radius;
49  if (!rotation)
50  return 2 * m_radius;
51  R3 centre(0.0, 0.0, m_radius);
52  R3 new_centre = rotation->transformed(centre);
53  return new_centre.z() + m_radius;
54 }

References m_position_at_center, m_radius, and IRotation::transformed().

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◆ transferToCPP()

virtual void ICloneable::transferToCPP ( )
inlinevirtualinherited

Used for Python overriding of clone (see swig/tweaks.py)

Definition at line 32 of file ICloneable.h.

◆ volume()

double IFormFactor::volume ( ) const
virtualinherited

Reimplemented in IFormFactorPrism, IFormFactorPolyhedron, and Box.

Definition at line 83 of file IFormFactor.cpp.

84 {
85  return std::abs(formfactor_at_bottom(C3()));
86 }

References IFormFactor::formfactor_at_bottom().

Referenced by Compute::Slicing::createParticleInSlice().

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Member Data Documentation

◆ m_P

◆ m_position_at_center

bool Sphere::m_position_at_center
private

Definition at line 49 of file Sphere.h.

Referenced by bottomZ(), clone(), formfactor_at_bottom(), and topZ().

◆ m_radius

const double& Sphere::m_radius
private

Definition at line 48 of file Sphere.h.

Referenced by bottomZ(), clone(), formfactor_at_bottom(), radialExtension(), radius(), and topZ().

◆ m_shape3D


The documentation for this class was generated from the following files: