OCCNurbsCurve

class compas_occ.geometry.OCCNurbsCurve(*args, **kwargs)[source]

Bases: compas.geometry.curves.nurbs.NurbsCurve

Class representing a NURBS curve based on the BSplineCurve of the OCC geometry kernel.

Parameters: name (str, optional) – The name of the curve.

Examples

Curve from points…

from compas.geometry import Point
from compas_occ.geometry import OCCNurbsCurve

points = [Point(0, 0, 0), Point(3, 6, 0), Point(6, -3, 3), Point(10, 0, 0)]

curve = OCCNurbsCurve.from_points(points)

Curve from parameters…

from compas.geometry import Point
from compas_occ.geometry import OCCNurbsCurve

points = [Point(0, 0, 0), Point(3, 6, 0), Point(6, -3, 3), Point(10, 0, 0)]

curve = OCCNurbsCurve.from_parameters(
    points=points,
    weights=[1.0, 1.0, 1.0, 1.0],
    knots=[0.0, 1.0],
    multiplicities=[4, 4],
    degree=3
)

Methods

`aabb`	Compute the axis aligned bounding box of the curve.
`closest_parameters_curve`	Computes the curve parameters where the curve is the closest to another given curve.
`closest_point`	Compute the closest point on the curve to a given point.
`closest_points_curve`	Computes the points on curves where the curve is the closest to another given curve.
`curvature_at`	Compute the curvature at a point on the curve.
`divide_by_count`	Divide the curve into a specific number of equal length segments.
`divide_by_length`	Divide the curve into segments of specified length.
`frame_at`	Compute the local frame at a point on the curve.
`from_arc`	Construct a NURBS curve from an arc.
`from_circle`	Construct a NURBS curve from a circle.
`from_edge`	Construct a NURBS curve from an existing OCC TopoDS_Edge.
`from_ellipse`	Construct a NURBS curve from an ellipse.
`from_interpolation`	Construct a NURBS curve by interpolating a set of points.
`from_line`	Construct a NURBS curve from a line.
`from_occ`	Construct a NURBS curve from an existing OCC BSplineCurve.
`from_parameters`	Construct a NURBS curve from explicit curve parameters.
`from_points`	Construct a NURBS curve from control points.
`from_step`	Load a NURBS curve from an STP file.
`length`	Compute the length of the curve.
`obb`	Compute the oriented bounding box of the curve.
`point_at`	Compute a point on the curve.
`reverse`	Reverse the parametrisation of the curve.
`segment`	Modifies this curve by segmenting it between the parameters u and v.
`segmented`	Returns a copy of this curve by segmenting it between the parameters u and v.
`tangent_at`	Compute the tangent vector at a point on the curve.
`to_line`
`to_polyline`
`to_step`	Write the curve geometry to a STP file.
`transform`	Transform this curve.

Inherited Methods

`copy`	Make an independent copy of the current curve.
`fair`
`from_data`	Construct a NURBS curve from its data representation.
`from_json`	Construct an object from serialized data contained in a JSON file.
`from_jsonstring`	Construct an object from serialized data contained in a JSON string.
`locus`	Compute the locus of all points on the curve.
`space`	Compute evenly spaced parameters over the curve domain.
`to_data`	Convert an object to its native data representation.
`to_json`	Serialize the data representation of an object to a JSON file.
`to_jsonstring`	Serialize the data representation of an object to a JSON string.
`transformed`	Transform a copy of the curve.
`validate_data`	Validate the object's data against its data schema (self.DATASCHEMA).
`validate_json`	Validate the object's data against its json schema (self.JSONSCHEMA).
`xyz`	Compute point locations corresponding to evenly spaced parameters over the curve domain.

OCCNurbsCurve

COMPAS