OCC.Core.BndLib module¶
BndLib module, see official documentation at https://www.opencascade.com/doc/occt-7.4.0/refman/html/package_bndlib.html
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class
BndLib_Add2dCurve¶ Bases:
object-
static
Add()¶ - Adds to the bounding box B the curve C B is then enlarged by the tolerance value Tol. Note: depending on the type of curve, one of the following representations of the curve C is used to include it in the bounding box B: - an exact representation if C is built from a line, a circle or a conic curve, - the poles of the curve if C is built from a Bezier curve or a BSpline curve, - if not, the points of an approximation of the curve C. Warning C is an adapted curve, that is, an object which is an interface between: - the services provided by a 2D curve from the package Geom2d - and those required of the curve by the computation algorithm. The adapted curve is created in the following way: opencascade::handle<Geom2d_Curve> mycurve = … ; Geom2dAdaptor_Curve C(mycurve); The bounding box B is then enlarged by adding it: Bnd_Box2d B; // … Standard_Real Tol = … ; Add2dCurve::Add ( C, Tol, B ); Exceptions Standard_Failure if the curve is built from: - a Geom_Line, or - a Geom_Parabola, or - a Geom_Hyperbola, and P1 and P2 are either two negative infinite real numbers, or two positive infinite real numbers.
- param C
- type C
Adaptor2d_Curve2d
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void* Adds to the bounding box Bthe arc of the curve C limited by the two parameter values P1 and P2. B is then enlarged by the tolerance value Tol. Note: depending on the type of curve, one of the following representations of the curve C is used to include it in the bounding box B: - an exact representation if C is built from a line, a circle or a conic curve, - the poles of the curve if C is built from a Bezier curve or a BSpline curve, - if not, the points of an approximation of the curve C. Warning C is an adapted curve, that is, an object which is an interface between: - the services provided by a 2D curve from the package Geom2d - and those required of the curve by the computation algorithm. The adapted curve is created in the following way: opencascade::handle<Geom2d_Curve> mycurve = … ; Geom2dAdaptor_Curve C(mycurve); The bounding box B is then enlarged by adding it: Bnd_Box2d B; // … Standard_Real Tol = … ; Add2dCurve::Add ( C, Tol, B ); Exceptions Standard_Failure if the curve is built from: - a Geom_Line, or - a Geom_Parabola, or - a Geom_Hyperbola, and P1 and P2 are either two negative infinite real numbers, or two positive infinite real numbers.
- param C
- type C
Adaptor2d_Curve2d
- param U1
- type U1
float
- param U2
- type U2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void* Adds to the bounding box B the curve C B is then enlarged by the tolerance value Tol. Note: depending on the type of curve, one of the following representations of the curve C is used to include it in the bounding box B: - an exact representation if C is built from a line, a circle or a conic curve, - the poles of the curve if C is built from a Bezier curve or a BSpline curve, - if not, the points of an approximation of the curve C.
- param C
- type C
Geom2d_Curve
- param Tol
- type Tol
float
- param Box
- type Box
Bnd_Box2d
- rtype
void* Adds to the bounding box B the part of curve C B is then enlarged by the tolerance value Tol. U1, U2 - the parametric range to comute the bounding box; Note: depending on the type of curve, one of the following representations of the curve C is used to include it in the bounding box B: - an exact representation if C is built from a line, a circle or a conic curve, - the poles of the curve if C is built from a Bezier curve or a BSpline curve, - if not, the points of an approximation of the curve C.
- param C
- type C
Geom2d_Curve
- param U1
- type U1
float
- param U2
- type U2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void
-
static
AddOptimal()¶ - Adds to the bounding box B the part of curve C B is then enlarged by the tolerance value Tol. U1, U2 - the parametric range to comute the bounding box; Note: depending on the type of curve, one of the following algorithms is used to include it in the bounding box B: - an exact analytical if C is built from a line, a circle or a conic curve, - numerical calculation of bounding box sizes, based on minimization algorithm, for other types of curve If Tol = < Precision::PConfusion(), Precision::PConfusion is used as tolerance for calculation
- param C
- type C
Geom2d_Curve
- param U1
- type U1
float
- param U2
- type U2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void
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property
thisown¶ The membership flag
-
static
-
class
BndLib_Add3dCurve¶ Bases:
object-
static
Add()¶ - Adds to the bounding box B the curve C B is then enlarged by the tolerance value Tol. Note: depending on the type of curve, one of the following representations of the curve C is used to include it in the bounding box B: - an exact representation if C is built from a line, a circle or a conic curve, - the poles of the curve if C is built from a Bezier curve or a BSpline curve, if not, the points of an approximation of the curve C. Warning C is an adapted curve, that is, an object which is an interface between: - the services provided by a 3D curve from the package Geom - and those required of the curve by the computation algorithm. The adapted curve is created in the following way: opencascade::handle<Geom_Curve> mycurve = … ; GeomAdaptor_Curve C(mycurve); The bounding box B is then enlarged by adding it: Bnd_Box B; // … Standard_Real Tol = … ; Add3dCurve::Add ( C, Tol, B ); Exceptions Standard_Failure if the curve is built from: - a Geom_Line, or - a Geom_Parabola, or - a Geom_Hyperbola, and P1 and P2 are either two negative infinite real numbers, or two positive infinite real numbers.
- param C
- type C
Adaptor3d_Curve
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds to the bounding box B the curve C the arc of the curve C limited by the two parameter values P1 and P2. Note: depending on the type of curve, one of the following representations of the curve C is used to include it in the bounding box B: - an exact representation if C is built from a line, a circle or a conic curve, - the poles of the curve if C is built from a Bezier curve or a BSpline curve, if not, the points of an approximation of the curve C. Warning C is an adapted curve, that is, an object which is an interface between: - the services provided by a 3D curve from the package Geom - and those required of the curve by the computation algorithm. The adapted curve is created in the following way: opencascade::handle<Geom_Curve> mycurve = … ; GeomAdaptor_Curve C(mycurve); The bounding box B is then enlarged by adding it: Bnd_Box B; // … Standard_Real Tol = … ; Add3dCurve::Add ( C, Tol, B ); Exceptions Standard_Failure if the curve is built from: - a Geom_Line, or - a Geom_Parabola, or - a Geom_Hyperbola, and P1 and P2 are either two negative infinite real numbers, or two positive infinite real numbers.
- param C
- type C
Adaptor3d_Curve
- param U1
- type U1
float
- param U2
- type U2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void
-
static
AddGenCurv()¶ - Adds to the bounding box B the curve C using numerical minimization algorithms This method is used in AddOptimal for not analytical curves. if Tol < Precision::Confusion(), Precision:;Confusion is used as computation tolerance
- param C
- type C
Adaptor3d_Curve
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void
-
static
AddOptimal()¶ - Adds to the bounding box B the curve C These methods use more precise algorithms for building bnd box then methods Add(…)
- param C
- type C
Adaptor3d_Curve
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void:param C:
- type C
Adaptor3d_Curve
- param U1
- type U1
float
- param U2
- type U2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void
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property
thisown¶ The membership flag
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static
-
class
BndLib_AddSurface¶ Bases:
object-
static
Add()¶ - Adds to the bounding box B the surface S B is then enlarged by the tolerance value Tol. Note: depending on the type of curve, one of the following representations of the surface S is used to include it in the bounding box B: - an exact representation if S is built from a plane, a cylinder, a cone, a sphere or a torus, - the poles of the surface if S is built from a Bezier surface or a BSpline surface, - the points of an approximation of the surface S in cases other than offset surfaces; - in the case of an offset surface, the basis surface is first included according to the previous rules; then the bounding box is enlarged by the offset value. Warning Do not use these functions to add a non-finite surface to the bounding box B. If UMin, UMax, VMin or VMax is an infinite value B will become WholeSpace. S is an adapted surface, that is, an object which is an interface between: - the services provided by a surface from the package Geom - and those required of the surface by the computation algorithm. The adapted surface is created in the following way: opencascade::handle<Geom_Surface> mysurface = … ; GeomAdaptor_Surface S(mysurface); The bounding box B is then enlarged by adding this surface: Bnd_Box B; // … Standard_Real Tol = … ; AddSurface::Add ( S, Tol, B );
- param S
- type S
Adaptor3d_Surface
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds to the bounding box B the surface S the patch of the surface S limited in the u parametric direction by the two parameter values UMin, UMax, and in the v parametric direction by the two parameter values VMin, VMax. Note: depending on the type of curve, one of the following representations of the surface S is used to include it in the bounding box B: - an exact representation if S is built from a plane, a cylinder, a cone, a sphere or a torus, - the poles of the surface if S is built from a Bezier surface or a BSpline surface, - the points of an approximation of the surface S in cases other than offset surfaces; - in the case of an offset surface, the basis surface is first included according to the previous rules; then the bounding box is enlarged by the offset value. Warning Do not use these functions to add a non-finite surface to the bounding box B. If UMin, UMax, VMin or VMax is an infinite value B will become WholeSpace. S is an adapted surface, that is, an object which is an interface between: - the services provided by a surface from the package Geom - and those required of the surface by the computation algorithm. The adapted surface is created in the following way: opencascade::handle<Geom_Surface> mysurface = … ; GeomAdaptor_Surface S(mysurface); The bounding box B is then enlarged by adding this surface: Bnd_Box B; // … Standard_Real Tol = … ; AddSurface::Add ( S, Tol, B );
- param S
- type S
Adaptor3d_Surface
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void
-
static
AddGenSurf()¶ - Adds to the bounding box B the surface S using numerical minimization algorithms This method is used in AddOptimal for not analytical surfaces and torus. if Tol < Precision::Confusion(), Precision::Confusion is used as computation tolerance
- param S
- type S
Adaptor3d_Surface
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void
-
static
AddOptimal()¶ - Adds the surface S to the bounding box B. This algorith builds precise bounding box
- param S
- type S
Adaptor3d_Surface
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void:param S:
- type S
Adaptor3d_Surface
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void
-
property
thisown¶ The membership flag
-
static
-
class
SwigPyIterator(*args, **kwargs)¶ Bases:
object-
advance()¶
-
copy()¶
-
decr()¶
-
distance()¶
-
equal()¶
-
incr()¶
-
next()¶
-
previous()¶
-
property
thisown¶ The membership flag
-
value()¶
-
-
class
bndlib¶ Bases:
object-
static
Add()¶ - Bounding box for a surface trimmed or not Adds the segment of the line L limited by the two parameter values P1 and P2, to the bounding box B, and then enlarges B by the tolerance value Tol. Tol is the tolerance value to enlarge the minimun and maximum dimension P1 and P2 may represent infinite values. Exceptions Standard_Failure if P1 and P2 are either two negative infinite real numbers, or two positive infinite real numbers.
- param L
- type L
gp_Lin
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void:param L:
- type L
gp_Lin2d
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void:param C:
- type C
gp_Circ
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* P2-P1 can be in [0,2*pi]
- param C
- type C
gp_Circ
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void:param C:
- type C
gp_Circ2d
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void* Adds the circle C, or the arc of the circle C limited by the two parameter values P1 and P2, to the bounding box B, and then enlarges B by the tolerance value Tol. P2-P1 can be in [0,2*pi]
- param C
- type C
gp_Circ2d
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void:param C:
- type C
gp_Elips
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* P2-P1 can be in [0,2*pi]
- param C
- type C
gp_Elips
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void:param C:
- type C
gp_Elips2d
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void* Adds the ellipse E, or the arc of the ellipse E limited by the two parameter values P1 and P2, to the bounding box B, and then enlarges B by the tolerance value Tol. P2-P1 can be in [0,2*pi]
- param C
- type C
gp_Elips2d
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void:param P:
- type P
gp_Parab
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds the arc of the parabola P limited by the two parameter values P1 and P2, to the bounding box B, and then enlarges B by the tolerance value Tol. P1 and P2 may represent infinite values. Exceptions Standard_Failure if P1 and P2 are either two negative infinite real numbers, or two positive infinite real numbers.
- param P
- type P
gp_Parab2d
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void:param H:
- type H
gp_Hypr
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds the arc of the branch of hyperbola H limited by the two parameter values P1 and P2, to the bounding box B, and then enlarges B by the tolerance value Tol. P1 and P2 may represent infinite values. Exceptions Standard_Failure if P1 and P2 are either two negative infinite real numbers, or two positive infinite real numbers.
- param H
- type H
gp_Hypr2d
- param P1
- type P1
float
- param P2
- type P2
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box2d
- rtype
void* UMax -UMin can be in [0,2*pi]
- param S
- type S
gp_Cylinder
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds to the bounding box B, the patch of the cylinder S limited - in the v parametric direction, by the two parameter values VMin and VMax - and optionally in the u parametric direction, by the two parameter values UMin and UMax. B is then enlarged by the tolerance value Tol. VMin and VMax may represent infinite values. Exceptions Standard_Failure if VMin and VMax are either two negative infinite real numbers, or two positive infinite real numbers.
- param S
- type S
gp_Cylinder
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* UMax-UMin can be in [0,2*pi]
- param S
- type S
gp_Cone
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds to the bounding box B, the patch of the cone S limited - in the v parametric direction, by the two parameter values VMin and VMax - and optionally in the u parametric direction, by the two parameter values UMin and UMax, B is then enlarged by the tolerance value Tol. VMin and VMax may represent infinite values. Exceptions Standard_Failure if VMin and VMax are either two negative infinite real numbers, or two positive infinite real numbers.
- param S
- type S
gp_Cone
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void:param S:
- type S
gp_Sphere
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds to the bounding box B the sphere S, or - the patch of the sphere S, limited in the u parametric direction, by the two parameter values UMin and UMax, and in the v parametric direction, by the two parameter values VMin and VMax. B is then enlarged by the tolerance value Tol. UMax-UMin can be in [0,2*pi] VMin,VMax can be [-pi/2,pi/2]
- param S
- type S
gp_Sphere
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void:param P:
- type P
gp_Torus
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void* Adds to the bounding box B - the torus S, or - the patch of the torus S, limited in the u parametric direction, by the two parameter values UMin and UMax, and in the v parametric direction, by the two parameter values VMin and VMax. B is then enlarged by the tolerance value Tol. UMax-UMin can be in [0,2*pi], VMin,VMax can be [-pi/2,pi/2]
- param P
- type P
gp_Torus
- param UMin
- type UMin
float
- param UMax
- type UMax
float
- param VMin
- type VMin
float
- param VMax
- type VMax
float
- param Tol
- type Tol
float
- param B
- type B
Bnd_Box
- rtype
void
-
property
thisown¶ The membership flag
-
static