Describes a portion of a surface (a patch) limited
by two values of the u parameter in the u
parametric direction, and two values of the v
parameter in the v parametric direction. The
domain of the trimmed surface must be within the
domain of the surface being trimmed.
The trimmed surface is defined by:
More...

#include <Geom_RectangularTrimmedSurface.hxx>

Inheritance diagram for Geom_RectangularTrimmedSurface:

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Public Member Functions
	Geom_RectangularTrimmedSurface (const Handle< Geom_Surface > &S, const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2, const Standard_Boolean USense=Standard_True, const Standard_Boolean VSense=Standard_True)
	The U parametric direction of the surface is oriented from U1 to U2. The V parametric direction of the surface is oriented from V1 to V2. These two directions define the orientation of the surface (normal). If the surface is not periodic USense and VSense are not used for the construction. If the surface S is periodic in one direction USense and VSense give the available part of the surface. By default in this case the surface has the same orientation as the basis surface S. The returned surface is not closed and not periodic. ConstructionError Raised if S is not periodic in the UDirection and U1 or U2 are out of the bounds of S. S is not periodic in the VDirection and V1 or V2 are out of the bounds of S. U1 = U2 or V1 = V2 More...

	Geom_RectangularTrimmedSurface (const Handle< Geom_Surface > &S, const Standard_Real Param1, const Standard_Real Param2, const Standard_Boolean UTrim, const Standard_Boolean Sense=Standard_True)
	The basis surface S is only trim in one parametric direction. <br> If UTrim = True the surface is trimmed in the U parametric direction else the surface is trimmed in the V parametric direction. In the considered parametric direction the resulting surface is oriented from Param1 to Param2. If S is periodic Sense gives the available part of the surface. By default the trimmed surface has the same orientation as the basis surface S in the considered parametric direction (Sense = True). If the basis surface S is closed or periodic in the parametric direction opposite to the trimming direction the trimmed surface has the same characteristics as the surface S in this direction. Warnings : In this package the entities are not shared. The RectangularTrimmedSurface is built with a copy of the surface S. So when S is modified the RectangularTrimmedSurface is not modified //! Raised if S is not periodic in the considered parametric direction and Param1 or Param2 are out of the bounds of S. Param1 = Param2 More...

void	SetTrim (const Standard_Real U1, const Standard_Real U2, const Standard_Real V1, const Standard_Real V2, const Standard_Boolean USense=Standard_True, const Standard_Boolean VSense=Standard_True)
	Modifies this patch by changing the trim values <br> applied to the original surface The u parametric direction of this patch is oriented from U1 to U2. The v parametric direction of this patch is oriented from V1 to V2. USense and VSense are used for the construction only if the surface is periodic in the corresponding parametric direction, and define the available part of the surface; by default in this case, this patch has the same orientation as the basis surface. //! Raised if The BasisSurface is not periodic in the UDirection and U1 or U2 are out of the bounds of the BasisSurface. The BasisSurface is not periodic in the VDirection and V1 or V2 are out of the bounds of the BasisSurface. U1 = U2 or V1 = V2 More...

void	SetTrim (const Standard_Real Param1, const Standard_Real Param2, const Standard_Boolean UTrim, const Standard_Boolean Sense=Standard_True)
	Modifies this patch by changing the trim values <br> applied to the original surface The basis surface is trimmed only in one parametric direction: if UTrim is true, the surface is trimmed in the u parametric direction; if it is false, it is trimmed in the v parametric direction. In the "trimmed" direction, this patch is oriented from Param1 to Param2. If the basis surface is periodic in the "trimmed" direction, Sense defines its available part. By default in this case, this patch has the same orientation as the basis surface in this parametric direction. If the basis surface is closed or periodic in the other parametric direction (i.e. not the "trimmed" direction), this patch has the same characteristics as the basis surface in that parametric direction. //! Raised if The BasisSurface is not periodic in the considered direction and Param1 or Param2 are out of the bounds of the BasisSurface. Param1 = Param2 More...

Handle_Geom_Surface	BasisSurface () const
	Returns the Basis surface of <me>. More...

void	UReverse ()
	Changes the orientation of this patch in the u <br> parametric direction. The bounds of the surface are not changed, but the given parametric direction is reversed. Hence the orientation of the surface is reversed. More...

Standard_Real	UReversedParameter (const Standard_Real U) const
	Computes the u parameter on the modified <br> surface, produced by when reversing its u parametric direction, for any point of u parameter U on this patch. More...

void	VReverse ()
	Changes the orientation of this patch in the v <br> parametric direction. The bounds of the surface are not changed, but the given parametric direction is reversed. Hence the orientation of the surface is reversed. More...

Standard_Real	VReversedParameter (const Standard_Real V) const
	Computes the v parameter on the modified <br> surface, produced by when reversing its v parametric direction, for any point of v parameter V on this patch. More...

void	Bounds (Standard_Real &U1, Standard_Real &U2, Standard_Real &V1, Standard_Real &V2) const
	Returns the parametric bounds U1, U2, V1 and V2 of this patch. More...

GeomAbs_Shape	Continuity () const
	Returns the continuity of the surface : C0 : only geometric continuity, C1 : continuity of the first derivative all along the Surface, C2 : continuity of the second derivative all along the Surface, C3 : continuity of the third derivative all along the Surface, CN : the order of continuity is infinite. More...

Standard_Boolean	IsUClosed () const
	Returns true if this patch is closed in the given parametric direction. More...

Standard_Boolean	IsVClosed () const
	Returns true if this patch is closed in the given parametric direction. More...

Standard_Boolean	IsCNu (const Standard_Integer N) const
	Returns true if the order of derivation in the U parametric direction is N. //! Raised if N < 0. More...

Standard_Boolean	IsCNv (const Standard_Integer N) const
	Returns true if the order of derivation in the V parametric direction is N. //! Raised if N < 0. More...

Standard_Boolean	IsUPeriodic () const
	Returns true if this patch is periodic in the given <br> parametric direction. More...

virtual Standard_Real	UPeriod () const
	Returns the period of this patch in the u <br> parametric direction. //! raises if the surface is not uperiodic. More...

Standard_Boolean	IsVPeriodic () const
	Returns true if this patch is periodic in the given parametric direction. More...

virtual Standard_Real	VPeriod () const
	Returns the period of this patch in the v <br> parametric direction. //! raises if the surface is not vperiodic. //! value and derivatives More...

Handle_Geom_Curve	UIso (const Standard_Real U) const
	computes the U isoparametric curve. More...

Handle_Geom_Curve	VIso (const Standard_Real V) const
	Computes the V isoparametric curve. More...

void	D0 (const Standard_Real U, const Standard_Real V, gp_Pnt &P) const
	Can be raised if the basis surface is an OffsetSurface. More...

void	D1 (const Standard_Real U, const Standard_Real V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V) const
	The returned derivatives have the same orientation as the derivatives of the basis surface even if the trimmed surface has not the same parametric orientation. Warning! UndefinedDerivative raised if the continuity of the surface is not C1. More...

void	D2 (const Standard_Real U, const Standard_Real V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V, gp_Vec &D2U, gp_Vec &D2V, gp_Vec &D2UV) const
	The returned derivatives have the same orientation as the <br> derivatives of the basis surface even if the trimmed surface has not the same parametric orientation. Warning! UndefinedDerivative raised if the continuity of the surface is not C2. More...

void	D3 (const Standard_Real U, const Standard_Real V, gp_Pnt &P, gp_Vec &D1U, gp_Vec &D1V, gp_Vec &D2U, gp_Vec &D2V, gp_Vec &D2UV, gp_Vec &D3U, gp_Vec &D3V, gp_Vec &D3UUV, gp_Vec &D3UVV) const
	The returned derivatives have the same orientation as the <br> derivatives of the basis surface even if the trimmed surface has not the same parametric orientation. Warning UndefinedDerivative raised if the continuity of the surface is not C3. More...

gp_Vec	DN (const Standard_Real U, const Standard_Real V, const Standard_Integer Nu, const Standard_Integer Nv) const
	The returned derivative has the same orientation as the <br> derivative of the basis surface even if the trimmed surface has not the same parametric orientation. Warning! UndefinedDerivative raised if the continuity of the surface is not CNu in the U parametric direction and CNv in the V parametric direction. RangeError Raised if Nu + Nv < 1 or Nu < 0 or Nv < 0. More...

void	Transform (const gp_Trsf &T)
	Applies the transformation T to this patch. <br> Warning As a consequence, the basis surface included in the data structure of this patch is also modified. More...

virtual void	TransformParameters (Standard_Real &U, Standard_Real &V, const gp_Trsf &T) const
	Computes the parameters on the transformed surface for <br> the transform of the point of parameters U,V on <me>. <br> me->Transformed(T)->Value(U',V') is the same point as me->Value(U,V).Transformed(T) Where U',V' are the new values of U,V after calling me->TranformParameters(U,V,T) This methods calls the basis surface method. More...

virtual gp_GTrsf2d	ParametricTransformation (const gp_Trsf &T) const
	Returns a 2d transformation used to find the new <br> parameters of a point on the transformed surface. <br> me->Transformed(T)->Value(U',V') is the same point as me->Value(U,V).Transformed(T) Where U',V' are obtained by transforming U,V with th 2d transformation returned by me->ParametricTransformation(T) This methods calls the basis surface method. More...

Handle_Geom_Geometry	Copy () const
	Creates a new object which is a copy of this patch. More...

Public Member Functions inherited from Geom_Surface
Handle_Geom_Surface	UReversed () const
	Reverses the U direction of parametrization of <me>. The bounds of the surface are not modified. A copy of <me> is returned. More...

Handle_Geom_Surface	VReversed () const
	Reverses the V direction of parametrization of <me>. The bounds of the surface are not modified. A copy of <me> is returned. More...

gp_Pnt	Value (const Standard_Real U, const Standard_Real V) const
	Computes the point of parameter U on the surface. <br> It is implemented with D0 Raised only for an "OffsetSurface" if it is not possible to compute the current point. More...

Public Member Functions inherited from Geom_Geometry
void	Mirror (const gp_Pnt &P)
	Performs the symmetrical transformation of a Geometry with respect to the point P which is the center of the symmetry. More...

void	Mirror (const gp_Ax1 &A1)
	Performs the symmetrical transformation of a Geometry with respect to an axis placement which is the axis of the symmetry. More...

void	Mirror (const gp_Ax2 &A2)
	Performs the symmetrical transformation of a Geometry with respect to a plane. The axis placement A2 locates the plane of the symmetry : (Location, XDirection, YDirection). More...

void	Rotate (const gp_Ax1 &A1, const Standard_Real Ang)
	Rotates a Geometry. A1 is the axis of the rotation. Ang is the angular value of the rotation in radians. More...

void	Scale (const gp_Pnt &P, const Standard_Real S)
	Scales a Geometry. S is the scaling value. More...

void	Translate (const gp_Vec &V)
	Translates a Geometry. V is the vector of the tanslation. More...

void	Translate (const gp_Pnt &P1, const gp_Pnt &P2)
	Translates a Geometry from the point P1 to the point P2. More...

Handle_Geom_Geometry	Mirrored (const gp_Pnt &P) const

Handle_Geom_Geometry	Mirrored (const gp_Ax1 &A1) const

Handle_Geom_Geometry	Mirrored (const gp_Ax2 &A2) const

Handle_Geom_Geometry	Rotated (const gp_Ax1 &A1, const Standard_Real Ang) const

Handle_Geom_Geometry	Scaled (const gp_Pnt &P, const Standard_Real S) const

Handle_Geom_Geometry	Transformed (const gp_Trsf &T) const

Handle_Geom_Geometry	Translated (const gp_Vec &V) const

Handle_Geom_Geometry	Translated (const gp_Pnt &P1, const gp_Pnt &P2) const

Public Member Functions inherited from MMgt_TShared
virtual void	Delete () const
	Memory deallocator for transient classes. More...

Public Member Functions inherited from Standard_Transient
	Standard_Transient ()
	Empty constructor. More...

	Standard_Transient (const Standard_Transient &)
	Copy constructor – does nothing. More...

Standard_Transient &	operator= (const Standard_Transient &)
	Assignment operator, needed to avoid copying reference counter. More...

virtual	~Standard_Transient ()
	Destructor must be virtual. More...

virtual void	ShallowDump (Standard_OStream &) const

virtual const Handle_Standard_Type &	DynamicType () const
	Returns a type information object about this object. More...

Standard_Boolean	IsInstance (const Handle_Standard_Type &theType) const
	Returns a true value if this is an instance of Type. More...

Standard_Boolean	IsInstance (const Standard_CString theTypeName) const
	Returns a true value if this is an instance of TypeName. More...

Standard_Boolean	IsKind (const Handle_Standard_Type &theType) const
	Returns true if this is an instance of Type or an instance of any class that inherits from Type. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

Standard_Boolean	IsKind (const Standard_CString theTypeName) const
	Returns true if this is an instance of TypeName or an instance of any class that inherits from TypeName. Note that multiple inheritance is not supported by OCCT RTTI mechanism. More...

virtual Handle_Standard_Transient	This () const
	Returns a Handle which references this object. Must never be called to objects created in stack. More...

Standard_Integer	GetRefCount () const
	Get the reference counter of this object. More...

Detailed Description

Describes a portion of a surface (a patch) limited
by two values of the u parameter in the u
parametric direction, and two values of the v
parameter in the v parametric direction. The
domain of the trimmed surface must be within the
domain of the surface being trimmed.
The trimmed surface is defined by:

the basis surface, and
the values (umin, umax) and (vmin, vmax)
which limit it in the u and v parametric directions.
The trimmed surface is built from a copy of the basis
surface. Therefore, when the basis surface is
modified the trimmed surface is not changed.
Consequently, the trimmed surface does not
necessarily have the same orientation as the basis surface.
Warning: The case of surface being trimmed is periodic and
parametrics values are outside the domain is possible.
But, domain of the trimmed surface can be translated
by (n X) the period.

Constructor & Destructor Documentation

Geom_RectangularTrimmedSurface::Geom_RectangularTrimmedSurface	(	const Handle< Geom_Surface > &	S,
		const Standard_Real	U1,
		const Standard_Real	U2,
		const Standard_Real	V1,
		const Standard_Real	V2,
		const Standard_Boolean	USense = `Standard_True`,
		const Standard_Boolean	VSense = `Standard_True`
	)

The U parametric direction of the surface is oriented from U1
to U2. The V parametric direction of the surface is oriented
from V1 to V2.
These two directions define the orientation of the surface
(normal). If the surface is not periodic USense and VSense are
not used for the construction. If the surface S is periodic in
one direction USense and VSense give the available part of the
surface. By default in this case the surface has the same
orientation as the basis surface S.
The returned surface is not closed and not periodic.
ConstructionError Raised if
S is not periodic in the UDirection and U1 or U2 are out of the
bounds of S.
S is not periodic in the VDirection and V1 or V2 are out of the
bounds of S.
U1 = U2 or V1 = V2

Geom_RectangularTrimmedSurface::Geom_RectangularTrimmedSurface	(	const Handle< Geom_Surface > &	S,
		const Standard_Real	Param1,
		const Standard_Real	Param2,
		const Standard_Boolean	UTrim,
		const Standard_Boolean	Sense = `Standard_True`
	)

The basis surface S is only trim in one parametric direction. <br>

If UTrim = True the surface is trimmed in the U parametric
direction else the surface is trimmed in the V parametric
direction.
In the considered parametric direction the resulting surface is
oriented from Param1 to Param2. If S is periodic Sense gives the
available part of the surface. By default the trimmed surface has
the same orientation as the basis surface S in the considered
parametric direction (Sense = True).
If the basis surface S is closed or periodic in the parametric
direction opposite to the trimming direction the trimmed surface
has the same characteristics as the surface S in this direction.
Warnings :
In this package the entities are not shared.
The RectangularTrimmedSurface is built with a copy of the
surface S. So when S is modified the RectangularTrimmedSurface
is not modified
//! Raised if
S is not periodic in the considered parametric direction and
Param1 or Param2 are out of the bounds of S.
Param1 = Param2

Member Function Documentation

Handle_Geom_Surface Geom_RectangularTrimmedSurface::BasisSurface ( ) const

Returns the Basis surface of <me>.

void Geom_RectangularTrimmedSurface::Bounds	(	Standard_Real &	U1,
		Standard_Real &	U2,
		Standard_Real &	V1,
		Standard_Real &	V2
	)		const

virtual

Returns the parametric bounds U1, U2, V1 and V2 of this patch.

void Geom_RectangularTrimmedSurface::SetTrim	(	const Standard_Real	U1,
		const Standard_Real	U2,
		const Standard_Real	V1,
		const Standard_Real	V2,
		const Standard_Boolean	USense = `Standard_True`,
		const Standard_Boolean	VSense = `Standard_True`
	)

Public Member Functions

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation