Defines an offset surface. More...

#include <cadex/ModelData_OffsetSurface.hxx>

Inheritance diagram for cadex::ModelData_OffsetSurface:

Public Types
typedef cadex::internal::ModelData_OffsetSurfaceImpl	ImplType

Public Member Functions
	ModelData_OffsetSurface ()
	Constructor.

	ModelData_OffsetSurface (const ModelData_Surface &theBasisSurface, double theOffset)
	Constructor.

	ModelData_OffsetSurface (const Handle_C &)
	Constructor.

ModelData_Surface	BasisSurface () const
	Returns basis surface.

double	Offset () const
	Returns offset value.

Public Member Functions inherited from cadex::ModelData_Surface
	ModelData_Surface ()
	Constructor.

	ModelData_Surface (const ModelData_Surface &theOther)
	Constructor.

	ModelData_Surface (ModelData_Surface &&theOther)
	Constructor.

	~ModelData_Surface ()
	Destructor.

ModelData_Surface &	operator= (const ModelData_Surface &theOther)
	Assignment operator.

ModelData_Surface &	operator= (ModelData_Surface &&theOther)
	Move assignment operator.

ModelData_SurfaceType	Type () const
	Returns a surface type.

bool	IsNull () const
	Returns true if the object has not been initialized yet.

void	Nullify ()
	Resets the object.

	operator bool () const

bool	IsUPeriodic () const
	Returns true if the surface is periodic in U direction.

bool	IsVPeriodic () const
	Returns true if the surface is periodic in V direction.

double	UMin () const
	Returns a minimum parameter of a definition domain in U direction.

double	UMax () const
	Returns a maximum parameter of a definition domain in U direction.

double	VMin () const
	Returns a minimum parameter of a definition domain in V direction.

double	VMax () const
	Returns a maximum parameter of a definition domain in V direction.

void	Domain (double &theUMin, double &theUMax, double &theVMin, double &theVMax) const
	Returns a definition domain.

ModelData_Point	Value (double theParameterU, double theParameterV) const
	Evaluates a point on the surface.

void	Transform (const ModelData_Transformation &theTransformation)
	Applies transformation matrix to this object.

ModelData_Surface	Transformed (const ModelData_Transformation &theTransformation) const
	Returns a copy this object after applying transformation.

ModelData_Continuity	Continuity () const
	Returns a continuity type of the surface.

void	D0 (double theParameterU, double theParameterV, ModelData_Point &theValue) const
	Returns the point theValue of parameter theU, theV on the surface.

void	D1 (double theParameterU, double theParameterV, ModelData_Point &theValue, ModelData_Vector &theD1U, ModelData_Vector &theD1V) const
	Returns the point theValue and the first derivatives in the directions U theD1U and V theD1V at this point.

void	D2 (double theParameterU, double theParameterV, ModelData_Point &theValue, ModelData_Vector &theD1U, ModelData_Vector &theD1V, ModelData_Vector &theD2U, ModelData_Vector &theD2V, ModelData_Vector &theD2UV) const
	Returns the point theValue, the first and the second derivatives in the directions U and V at this point.

bool	DN (double theParameterU, double theParameterV, size_t theDerivativeOrder, ModelData_Point &theValue, ModelData_Vector theD[]) const

void	Curvature (double theParameterU, double theParameterV, ModelData_Vector &thePrincipalMaxDirection, ModelData_Vector &thePrincipalMinDirection) const
	Returns the max and min principal curvature directions multiplied by max and min value of curvature respectively.

void	Curvature (double theParameterU, double theParameterV, ModelData_Direction &thePrincipalMaxDirection, ModelData_Direction &thePrincipalMinDirection, double &theMaxCurvature, double &theMinCurvature) const
	Returns the max and min principal curvature directions and their values.

void	Normal (double theParameterU, double theParameterV, ModelData_Direction &theNormal) const
	Returns the normal direction theNormal at the current point.

void	Mirror (const ModelData_Point &thePoint)
	Mirrors the surface relative to the point.

void	Mirror (const ModelData_Axis1Placement &theAxis)
	Mirrors the surface relative to the axis placement.

void	Mirror (const ModelData_Axis2Placement &theAxis)
	Mirrors the surface relative to the axis placement.

ModelData_Surface	Mirrored (const ModelData_Point &theRef) const
	Returns a copy this surface mirrored along the object.

ModelData_Surface	Mirrored (const ModelData_Axis1Placement &theAxis) const
	Returns a copy this surface mirrored along the object.

ModelData_Surface	Mirrored (const ModelData_Axis2Placement &theAxis) const
	Returns a copy this surface mirrored along the object.

void	Rotate (const ModelData_Axis1Placement &theAxis, double theAngle)
	Rotates the surface around the axis.

ModelData_Surface	Rotated (const ModelData_Axis1Placement &theAxis, double theAngle) const
	Returns a copy this surface rotated along the axis.

void	Translate (const ModelData_Vector &theVector)
	Translates the surface along the vector.

ModelData_Surface	Translated (const ModelData_Vector &theVector) const
	Returns a copy this surface translated along the vector.

void	Scale (const ModelData_Point &thePoint, double theScale)
	Scales the surface with respect to the point.

ModelData_Surface	Scaled (const ModelData_Point &thePoint, double theScale) const
	Returns a copy this surface scaled with respect to the point.

Public Attributes
	operator Handle_C const

Detailed Description

Defines an offset surface.

An offset surface is defined by a basis surface and an offset value.

The following image depicts an example of an offset surface:

Offset surface

A basis surface must be at least G1-continous, otherwise behavior is undefined (most likely an exception will be thrown).

An offset surface is parametrized as follows: \(\mathbf{S}(u,v) = \mathbf{B}(u,v) + \mathrm{offset} \cdot \mathbf{N}(u,v)\), where

\(\mathbf{B}(u,v)\) is a basis surface;
\(\mathrm{offset}\) is an offset value;
\(\mathbf{N}(u,v)\) is a unit normal computed on basis surface;
\(u\) and \(v\) belong to basis surface domain definition.

Examples: exploring/brepgeometry/Program.cs, exploring/brepgeometry/main.cxx, modeling/brep/Program.cs, and modeling/brep/main.cxx.

Constructor & Destructor Documentation

◆ ModelData_OffsetSurface() [1/2]

cadex::ModelData_OffsetSurface::ModelData_OffsetSurface ( )

inline

Constructor.

Empty constructor.

◆ ModelData_OffsetSurface() [2/2]

cadex::ModelData_OffsetSurface::ModelData_OffsetSurface	(	const ModelData_Surface &	theBasisSurface,
		double	theOffset
	)

Constructor.

If theBasisSurface is an offset surface then its basis surface will be used as a basis surface and offset will be a sum of theOffset and the offset value of the theBasisSurface.

theBasisSurface must be at least G1-continuous, otherwise behavior is undefined.

Member Function Documentation

◆ Offset()

double cadex::ModelData_OffsetSurface::Offset ( ) const

Returns offset value.

Returns the value specified in constructor.

Examples: exploring/brepgeometry/Program.cs, and exploring/brepgeometry/main.cxx.

Public Types