Adaptor2d — OpenCascade.js

OCCT package Adaptor2d: Adaptor2d_Curve2d, Adaptor2d_Line2d, Adaptor2d_OffsetCurve.

Adaptor2d_Curve2d

Root class for 2D curves on which geometric algorithms work. An adapted curve is an interface between the services provided by a curve, and those required of the curve by algorithms, which use it. A derived concrete class is provided: Geom2dAdaptor_Curve for a curve from the Geom2d package.
Polynomial coefficients of BSpline curves used for their evaluation are cached for better performance. Therefore these evaluations are not thread-safe and parallel evaluations need to be prevented.

Constructors(1)

constructor(): Adaptor2d_Curve2d

Static methods(2)

get_type_name(): string
get_type_descriptor(): Standard_Type

Instance methods(36)

DynamicType(): Standard_Type
ShallowCopy(): Adaptor2d_Curve2d
Shallow copy of adaptor.
FirstParameter(): number
LastParameter(): number
Continuity(): GeomAbs_Shape
NbIntervals(S: GeomAbs_Shape): number
If necessary, breaks the curve in intervals of continuity . And returns the number of intervals.
Parameters (1)
- S
Intervals(T: NCollection_Array1_double, S: GeomAbs_Shape): void
Stores in <T> the parameters bounding the intervals of continuity .
The array must provide enough room to accommodate for the parameters. i.e. T.Length() > NbIntervals()
Parameters (2)
- T —
  Mutated in place; read the updated value from this argument after the call.
- S
Trim(First: number, Last: number, Tol: number): Adaptor2d_Curve2d
Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. If <First> >= <Last>.
Parameters (3)
- First
- Last
- Tol
IsClosed(): boolean
IsPeriodic(): boolean
Period(): number
Value(U: number): gp_Pnt2d
Computes the point of parameter U on the curve.
Parameters (1)
- U
D0(U: number, P: gp_Pnt2d): void
Computes the point of parameter U on the curve.
Parameters (2)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
D1(U: number, P: gp_Pnt2d, V: gp_Vec2d): void
Computes the point of parameter U on the curve with its first derivative. Raised if the continuity of the current interval is not C1.
Parameters (3)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V —
  Mutated in place; read the updated value from this argument after the call.
D2(U: number, P: gp_Pnt2d, V1: gp_Vec2d, V2: gp_Vec2d): void
Returns the point P of parameter U, the first and second derivatives V1 and V2. Raised if the continuity of the current interval is not C2.
Parameters (4)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V1 —
  Mutated in place; read the updated value from this argument after the call.
- V2 —
  Mutated in place; read the updated value from this argument after the call.
D3(U: number, P: gp_Pnt2d, V1: gp_Vec2d, V2: gp_Vec2d, V3: gp_Vec2d): void
Returns the point P of parameter U, the first, the second and the third derivative. Raised if the continuity of the current interval is not C3.
Parameters (5)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V1 —
  Mutated in place; read the updated value from this argument after the call.
- V2 —
  Mutated in place; read the updated value from this argument after the call.
- V3 —
  Mutated in place; read the updated value from this argument after the call.
DN(U: number, N: number): gp_Vec2d
The returned vector gives the value of the derivative for the order of derivation N. Raised if the continuity of the current interval is not CN. Raised if N < 1.
Parameters (2)
- U
- N
Resolution(R3d: number): number
Returns the parametric resolution corresponding to the real space resolution <R3d>.
Parameters (1)
- R3d
GetType(): GeomAbs_CurveType
Returns the type of the curve in the current interval: Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.
Line(): gp_Lin2d
Circle(): gp_Circ2d
Ellipse(): gp_Elips2d
Hyperbola(): gp_Hypr2d
Parabola(): gp_Parab2d
Degree(): number
IsRational(): boolean
NbPoles(): number
NbKnots(): number
NbSamples(): number
Bezier(): Geom2d_BezierCurve
BSpline(): Geom2d_BSplineCurve
EvalD0(theU: number): gp_Pnt2d
Computes the point of parameter U on the curve. Raises an exception on failure.
Parameters (1)
- theU
EvalD1(theU: number): Geom2d_Curve_ResD1
Computes the point and first derivative at parameter U. Raises an exception on failure.
Parameters (1)
- theU
EvalD2(theU: number): Geom2d_Curve_ResD2
Computes the point and first two derivatives at parameter U. Raises an exception on failure.
Parameters (1)
- theU
EvalD3(theU: number): Geom2d_Curve_ResD3
Computes the point and first three derivatives at parameter U. Raises an exception on failure.
Parameters (1)
- theU
EvalDN(theU: number, theN: number): gp_Vec2d
Computes the Nth derivative at parameter U. Raises an exception on failure.
Parameters (2)
- theU
- theN

Adaptor2d_Line2d

Adaptor2d_Curve2dStandard_Transient

Use by the TopolTool to trim a surface.

Constructors(2)

constructor(): Adaptor2d_Line2d
constructor(P: gp_Pnt2d, D: gp_Dir2d, UFirst: number, ULast: number): Adaptor2d_Line2d
Parameters (4)
- P
- D
- UFirst
- ULast

Static methods(2)

get_type_name(): string
get_type_descriptor(): Standard_Type

Instance methods(32)

DynamicType(): Standard_Type
ShallowCopy(): Adaptor2d_Curve2d
Shallow copy of adaptor.
Load(L: gp_Lin2d): void
Parameters (1)
- L
Load(L: gp_Lin2d, UFirst: number, ULast: number): void
Parameters (3)
- L
- UFirst
- ULast
FirstParameter(): number
LastParameter(): number
Continuity(): GeomAbs_Shape
NbIntervals(S: GeomAbs_Shape): number
If necessary, breaks the curve in intervals of continuity . And returns the number of intervals.
Parameters (1)
- S
Intervals(T: NCollection_Array1_double, S: GeomAbs_Shape): void
Stores in <T> the parameters bounding the intervals of continuity .
The array must provide enough room to accommodate for the parameters. i.e. T.Length() > NbIntervals()
Parameters (2)
- T —
  Mutated in place; read the updated value from this argument after the call.
- S
Trim(First: number, Last: number, Tol: number): Adaptor2d_Curve2d
Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. If <First> >= <Last>.
Parameters (3)
- First
- Last
- Tol
IsClosed(): boolean
IsPeriodic(): boolean
Period(): number
Value(U: number): gp_Pnt2d
Computes the point of parameter U on the curve.
Parameters (1)
- U
D0(U: number, P: gp_Pnt2d): void
Computes the point of parameter U on the curve.
Parameters (2)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
D1(U: number, P: gp_Pnt2d, V: gp_Vec2d): void
Computes the point of parameter U on the curve with its first derivative. Raised if the continuity of the current interval is not C1.
Parameters (3)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V —
  Mutated in place; read the updated value from this argument after the call.
D2(U: number, P: gp_Pnt2d, V1: gp_Vec2d, V2: gp_Vec2d): void
Returns the point P of parameter U, the first and second derivatives V1 and V2. Raised if the continuity of the current interval is not C2.
Parameters (4)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V1 —
  Mutated in place; read the updated value from this argument after the call.
- V2 —
  Mutated in place; read the updated value from this argument after the call.
D3(U: number, P: gp_Pnt2d, V1: gp_Vec2d, V2: gp_Vec2d, V3: gp_Vec2d): void
Returns the point P of parameter U, the first, the second and the third derivative. Raised if the continuity of the current interval is not C3.
Parameters (5)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V1 —
  Mutated in place; read the updated value from this argument after the call.
- V2 —
  Mutated in place; read the updated value from this argument after the call.
- V3 —
  Mutated in place; read the updated value from this argument after the call.
DN(U: number, N: number): gp_Vec2d
The returned vector gives the value of the derivative for the order of derivation N. Raised if the continuity of the current interval is not CN. Raised if N < 1.
Parameters (2)
- U
- N
Resolution(R3d: number): number
Returns the parametric resolution corresponding to the real space resolution <R3d>.
Parameters (1)
- R3d
GetType(): GeomAbs_CurveType
Returns the type of the curve in the current interval: Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.
Line(): gp_Lin2d
Circle(): gp_Circ2d
Ellipse(): gp_Elips2d
Hyperbola(): gp_Hypr2d
Parabola(): gp_Parab2d
Degree(): number
IsRational(): boolean
NbPoles(): number
NbKnots(): number
Bezier(): Geom2d_BezierCurve
BSpline(): Geom2d_BSplineCurve

Adaptor2d_OffsetCurve

Adaptor2d_Curve2d

Defines an Offset curve (algorithmic 2d curve).

Constructors(4)

constructor(): Adaptor2d_OffsetCurve
The Offset is set to 0.
constructor(C: Adaptor2d_Curve2d): Adaptor2d_OffsetCurve
The curve is loaded. The Offset is set to 0.
Parameters (1)
- C
constructor(C: Adaptor2d_Curve2d, Offset: number): Adaptor2d_OffsetCurve
Creates an OffsetCurve curve. The Offset is set to Offset.
Parameters (2)
- C
- Offset
constructor(C: Adaptor2d_Curve2d, Offset: number, WFirst: number, WLast: number): Adaptor2d_OffsetCurve
Create an Offset curve. WFirst,WLast define the bounds of the Offset curve.
Parameters (4)
- C
- Offset
- WFirst
- WLast

Static methods(2)

get_type_name(): string
get_type_descriptor(): Standard_Type

Instance methods(36)

DynamicType(): Standard_Type
ShallowCopy(): Adaptor2d_Curve2d
Shallow copy of adaptor.
Load(S: Adaptor2d_Curve2d): void
Changes the curve. The Offset is reset to 0.
Parameters (1)
- S
Load(Offset: number): void
Changes the Offset on the current Curve.
Parameters (1)
- Offset
Load(Offset: number, WFirst: number, WLast: number): void
Changes the Offset Curve on the current Curve.
Parameters (3)
- Offset
- WFirst
- WLast
Curve(): Adaptor2d_Curve2d
Offset(): number
FirstParameter(): number
LastParameter(): number
Continuity(): GeomAbs_Shape
NbIntervals(S: GeomAbs_Shape): number
If necessary, breaks the curve in intervals of continuity . And returns the number of intervals.
Parameters (1)
- S
Intervals(T: NCollection_Array1_double, S: GeomAbs_Shape): void
Stores in <T> the parameters bounding the intervals of continuity .
The array must provide enough room to accommodate for the parameters. i.e. T.Length() > NbIntervals()
Parameters (2)
- T —
  Mutated in place; read the updated value from this argument after the call.
- S
Trim(First: number, Last: number, Tol: number): Adaptor2d_Curve2d
Returns a curve equivalent of <me> between parameters <First> and <Last>. <Tol> is used to test for 3d points confusion. If <First> >= <Last>.
Parameters (3)
- First
- Last
- Tol
IsClosed(): boolean
IsPeriodic(): boolean
Period(): number
Value(U: number): gp_Pnt2d
Computes the point of parameter U on the curve.
Parameters (1)
- U
D0(U: number, P: gp_Pnt2d): void
Computes the point of parameter U on the curve.
Parameters (2)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
D1(U: number, P: gp_Pnt2d, V: gp_Vec2d): void
Computes the point of parameter U on the curve with its first derivative. Raised if the continuity of the current interval is not C1.
Parameters (3)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V —
  Mutated in place; read the updated value from this argument after the call.
D2(U: number, P: gp_Pnt2d, V1: gp_Vec2d, V2: gp_Vec2d): void
Returns the point P of parameter U, the first and second derivatives V1 and V2. Raised if the continuity of the current interval is not C2.
Parameters (4)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V1 —
  Mutated in place; read the updated value from this argument after the call.
- V2 —
  Mutated in place; read the updated value from this argument after the call.
D3(U: number, P: gp_Pnt2d, V1: gp_Vec2d, V2: gp_Vec2d, V3: gp_Vec2d): void
Returns the point P of parameter U, the first, the second and the third derivative. Raised if the continuity of the current interval is not C3.
Parameters (5)
- U
- P —
  Mutated in place; read the updated value from this argument after the call.
- V1 —
  Mutated in place; read the updated value from this argument after the call.
- V2 —
  Mutated in place; read the updated value from this argument after the call.
- V3 —
  Mutated in place; read the updated value from this argument after the call.
DN(U: number, N: number): gp_Vec2d
The returned vector gives the value of the derivative for the order of derivation N. Raised if the continuity of the current interval is not CN. Raised if N < 1.
Parameters (2)
- U
- N
Resolution(R3d: number): number
Returns the parametric resolution corresponding to the real space resolution <R3d>.
Parameters (1)
- R3d
GetType(): GeomAbs_CurveType
Returns the type of the curve in the current interval: Line, Circle, Ellipse, Hyperbola, Parabola, BezierCurve, BSplineCurve, OtherCurve.
Line(): gp_Lin2d
Circle(): gp_Circ2d
Ellipse(): gp_Elips2d
Hyperbola(): gp_Hypr2d
Parabola(): gp_Parab2d
Degree(): number
IsRational(): boolean
NbPoles(): number
NbKnots(): number
Bezier(): Geom2d_BezierCurve
BSpline(): Geom2d_BSplineCurve
NbSamples(): number