Bspline
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- Namespace:
AlibreScript.API - Kind:
Class
Properties
ControlPoints
Type: Object
The control points [x1, y1, …, xn, yn]
IsReference
Type: Object
True if the bspline is a reference bspline, false if it is a regular bspline
KnotVectors
Type: Object
The knot vectors [k1, k2, …, kn]
Length
Type: Object
Gets the length of the Bspline
Order
Type: Object
The order of the bspline
Weights
Type: Object
The weights [w1, w2, …, wn]
Methods
Bspline
Creates a bspline
def Bspline(order, control_points, knot_vectors, weights, is_reference):
"""
Creates a bspline
Args:
order (int): Order of the bspline
control_points (list): Value of control points [Point1X, Point1Y, ...]
knot_vectors (list): Knot vectors [KnotVector1, KnotVector2, ...]
weights (list): Point weights [Weight1, Weight2, ...]
is_reference (bool): True if a reference bspline, false if a regular bspline
"""GetNormalAt
Gets the normal vector at a point on the spline
def GetNormalAt(u):
"""
Gets the normal vector at a point on the spline
Args:
u (float): Location along the spline. 0.0 = start, 1.0 = end
Returns:
Vector for point on the spline at the specified location (A, B)
"""GetPointAt
Gets a point on the spline
def GetPointAt(u):
"""
Gets a point on the spline
Args:
u (float): Location along the spline. 0.0 = start, 1.0 = end
Returns:
Point on the spline at the specified location [X, Y]
"""GetX
Gets the X value of the spline at a location along the spline
def GetX(u):
"""
Gets the X value of the spline at a location along the spline
Args:
u (float): Location along the spline. 0.0 = start, 1.0 = end
Returns:
X value of spline at the specified location
"""GetY
Gets the Y value of the spline at a location along the spline
def GetY(u):
"""
Gets the Y value of the spline at a location along the spline
Args:
u (float): Location along the spline. 0.0 = start, 1.0 = end
Returns:
Y value of spline at the specified location
"""Subdivide
Divides the Bspline up into segments
def Subdivide(segments):
"""
Divides the Bspline up into segments
Args:
segments (int): Number of segments to obtain
Returns:
List of points between segments [X1, Y1, X2, Y2, ...]
"""