Spline2D

Canonical path: NemAll_Python_Geometry.Spline2D

Bases: PolyPoints2D

Representation class for 2D spline.

Methods:

• GetControlPoints –

  Compute bezier control points

• GetEndVector –

  Get end vector.

• GetStartVector –

  Get start vector.

• IsClosed –

  Check if spline is closed ( first/last points are equal )

• Reverse –

  Reverse of current spline

• SetEndVector –

  Set end vector.

• SetStartVector –

  Set start vector.

• __eq__ –

  Comparison of splines.

• __init__ –

  Overloaded function. See individual overloads.

• __mul__ –

  Multiple Spline with matrix.

• __repr__ –

  Convert to string

Attributes:

• EndVector (Vector2D) –

  Get end vector.

• StartVector (Vector2D) –

  Get start vector.

EndVector property writable

EndVector: Vector2D

Get end vector.

StartVector property writable

StartVector: Vector2D

Get start vector.

GetControlPoints

GetControlPoints() -> tuple[eGeometryErrorCode, Point2DList]

Compute bezier control points

Returns:

• tuple[eGeometryErrorCode, Point2DList] –

  tuple(error code, vector of control points)

GetEndVector

GetEndVector() -> Vector2D

Get end vector.

Returns:

• Vector2D –

  End vector.

GetStartVector

GetStartVector() -> Vector2D

Get start vector.

Returns:

• Vector2D –

  Start vector.

IsClosed

IsClosed() -> bool

Check if spline is closed ( first/last points are equal )

Returns:

• bool –

  closed spline true/false

Reverse

Reverse()

Reverse of current spline

Method reverse Spline using reverse from PolyPoints and swapping tangents.

SetEndVector

SetEndVector(vec: Vector2D)

Set end vector.

Parameters:

• vec (Vector2D) –

  new end vector.

SetStartVector

SetStartVector(vec: Vector2D)

Set start vector.

Parameters:

• vec (Vector2D) –

  new start vector.

__eq__

__eq__(spline: Spline2D) -> bool

Comparison of splines.

Be careful, this method work without tolerance!

Parameters:

• spline (Spline2D) –

  spline to be compared.

Returns:

• bool –

  True when splines are equal, otherwise false.

__init__ overloaded

__init__()

Initialize empty spline

__init__(spline: Spline2D)

Copy constructor.

Parameters:

• spline (Spline2D) –

  Spline which will be copied.

__init__(pntList: list[Point2D])

Default constructor

Parameters:

• pntList (list[Point2D]) –

  list with control points

__mul__

__mul__(matrix: Matrix2D) -> Spline2D

Multiple Spline with matrix.

Parameters:

• matrix (Matrix2D) –

  Transformation matrix.

Returns:

• Spline2D –

  Transformed spline.

__repr__

__repr__() -> str

Convert to string

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