BSpline3DService

Canonical path: NemAll_Python_Geometry.BSpline3DService

3D BSpline service

Methods:

• AddControlPoint –

  add control point to B-Spline

• AddControlPointOnSegment –

  add control point to B-Spline's segment given by point

• GetControlPointIndex –

  calculate control point index from parameter on B-Spline

• InsertKnot –

  Insert knot into bspline knot vector (compute new control points, preserve geometry)

• IsValid –

  Check validity of service data

• MoveStartPeriodic –

  Move start point in periodic BSpline

• PointModification –

  move interpolated or control point of B-Spline

• RefineKnots –

  Refine knots (insert knots if necessary)

• RemoveControlPoint –

  remove control point from B-Spline

• SetControlPoint –

  set coordinates of control point of B-Spline

• SetDegree –

  set degree of B-Spline

• SetInterpolatedPoint –

  set coordinates of interpolated point of B-Spline

• SetPeriodic –

  set/unset periodic property of B-Spline

• __init__ –

  Constructor

AddControlPoint

AddControlPoint(pointIdx: int, coords: Point3D)

add control point to B-Spline

Parameters:

• pointIdx (int) –

  index, where new point will be stored

• coords (Point3D) –

  coordinates of point

AddControlPointOnSegment

AddControlPointOnSegment(ray: Vector3D, coords: Point3D) -> tuple

add control point to B-Spline's segment given by point

Parameters:

• ray (Vector3D) –

  view vector

• coords (Point3D) –

  coordinates of point

Returns:

• tuple –

  segment index

GetControlPointIndex

GetControlPointIndex(param: float) -> int

calculate control point index from parameter on B-Spline

Parameters:

• param (float) –

  parameter on BSpline

InsertKnot

InsertKnot(param: float, numInsertionsMultiplicity: int)

Insert knot into bspline knot vector (compute new control points, preserve geometry)

Parameters:

• param (float) –

  param to insert

• numInsertionsMultiplicity (int) –

  multiplicity of new knot

IsValid

IsValid() -> bool

Check validity of service data

Returns:

• bool –

  bool valid = true

MoveStartPeriodic

MoveStartPeriodic(startParam: float)

Move start point in periodic BSpline

Parameters:

• startParam (float) –

  start value for knot interval

PointModification

PointModification(
    pointsIdx: VecSizeTList,
    moveVector: Vector3D,
    isInterpolated: bool,
    hSet: HealingSettings,
)

move interpolated or control point of B-Spline

Parameters:

• pointsIdx (VecSizeTList) –

  point indexes

• moveVector (Vector3D) –

  move vector

• isInterpolated (bool) –

  true if wanted to handle interpolated points

• hSet (HealingSettings) –

  healing settings

RefineKnots

RefineKnots(knotvalues: VecDoubleList, knotMultiplicities: VecSizeTList)

Refine knots (insert knots if necessary)

Parameters:

• knotvalues (VecDoubleList) –

  knot values to refine

• knotMultiplicities (VecSizeTList) –

  knot multiplicities

RemoveControlPoint

RemoveControlPoint(pointIdx: int)

remove control point from B-Spline

Parameters:

• pointIdx (int) –

  point index to remove

SetControlPoint

SetControlPoint(pointIdx: int, newCoords: Point3D)

set coordinates of control point of B-Spline

Parameters:

• pointIdx (int) –

  point index

• newCoords (Point3D) –

  new coordinates of point

SetDegree

SetDegree(degree: int)

set degree of B-Spline

Parameters:

• degree (int) –

  new degree for B-Spline

SetInterpolatedPoint

SetInterpolatedPoint(pointIdx: int, newCoords: Point3D)

set coordinates of interpolated point of B-Spline

Parameters:

• pointIdx (int) –

  point index

• newCoords (Point3D) –

  new coordinates of point

SetPeriodic

SetPeriodic(periodic: bool)

set/unset periodic property of B-Spline

Parameters:

• periodic (bool) –

  it true, B-Spline will be periodic, otherwise B-Spline will be open

__init__

__init__(bSpline: BSpline3D)

Constructor

Parameters:

• bSpline (BSpline3D) –

  BSpline for the services