Gets the dimension of the object. The dimension is typically three. For parameter space trimming curves the dimension is two. In rare cases the dimension can be one or greater than three.
Gets or sets the domain of the curve.
Returns true if the NURBS curve has Bezier spans (all distinct knots have multiplicity = degree)
Returns true if the Brep.TryConvertBrep function will be successful for this object
Gets a value indicating whether or not this curve is a closed curve.
true if object can be accurately modified with "squishy" transformations like projections, shears, and non-uniform scaling.
Gets a value indicating whether or not this curve is considered to be Periodic.
Gets a value indicating whether or not the curve is rational. Rational curves have control-points with custom weights.
Tests an object to see if it is valid.
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Useful for switch statements that need to differentiate between basic object types like points, curves, surfaces, and so on.
Gets the order of the curve. Order = Degree + 1.
Evaluates point at the end of the curve.
Evaluates point at the start of the curve.
Gets the number of non-empty smooth (c-infinity) spans in the curve.
Evaluate unit tangent vector at the end of the curve.
Evaluates the unit tangent vector at the start of the curve.
Gets the amount of user strings.
The orientation of this curve with respect to world XY plane.
The plane in which to solve the orientation.
The orientation of this curve with respect to world XY plane.
The span index, where (0 <= spanIndex <= Points.Count - Order).
Bezier curve if successful, null otherwise.
Curve parameter to evaluate.
Number of derivatives to evaluate, must be at least 0.
Side of parameter to evaluate. If the parameter is at a kink, it makes a big difference whether the evaluation is from below or above.
An array of vectors that represents all the derivatives starting at zero.
An object of the same type as this, with the same properties and behavior.
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If true, a physically accurate bounding box will be computed. If not, a bounding box estimate will be computed. For some geometry types there is no difference between the estimate and the accurate bounding box. Estimated bounding boxes can be computed much (much) faster than accurate (or "tight") bounding boxes. Estimated bounding boxes are always similar to or larger than accurate bounding boxes.
The bounding box of the geometry in world coordinates or BoundingBox.Empty if not bounding box could be found.
true if this curve can be represented as a polyline; otherwise, false.
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false if object cannot be converted to a deformable object. true if object was already deformable or was converted into a deformable object.
If true and the first or last weight is not one, then the first and last spans are re-parameterized so that the end weights are one.
true on success, false on failure.
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re-parameterization constant (generally speaking, c should be > 0). The control points and knots are adjusted so that output_nurbs(t) = input_nurbs(lambda(t)), where lambda(t) = c*t/( (c-1)*t + 1 ). Note that lambda(0) = 0, lambda(1) = 1, lambda'(t) > 0, lambda'(0) = c and lambda'(1) = 1/c.
true if successful.
Angle of rotation in radians.
Direction of the axis of rotation.
Point on the axis of rotation.
true if geometry successfully rotated.
Parameter to split the curve at in the interval returned by Domain().
Two curves on success, null on failure.
NURBS representation of the curve on success, null on failure.
The NURBS representation for this portion of the curve is returned.
NURBS representation of the curve on success, null on failure.
Transformation to apply to geometry.
true if geometry successfully transformed.
Start of the trimming interval. Portions of the curve before curve(t0) are removed.
End of the trimming interval. Portions of the curve after curve(t1) are removed.
Trimmed portion of this curve is successful, null on failure.
[boolean, Polyline] (boolean) true if this curve can be represented as a polyline; otherwise, false. (Polyline) If true is returned, then the polyline form is returned here.
StaticcreateIf true, create a periodic uniform curve. If false, create a clamped uniform curve.
(>=1) degree=order-1.
control vertex locations as an array of points or a Point3dList.
new NURBS curve on success null on error.
StaticcreateControl points as an array of arrays containing three numbers or a Point3dList.
Degree of curve. The number of control points must be at least degree+1.
StaticcreateStaticcreateCurve on success, null on failure.
Gets a rational degree 2 NURBS curve representation of the circle. Note that the parameterization of NURBS curve does not match circle's transcendental parameterization. Use GetRadianFromNurbFormParameter() and GetParameterFromRadian() to convert between the NURBS curve parameter and the transcendental parameter.
StaticcreateA NURBS curve representation of this ellipse or null if no such representation could be made.
StaticcreateStaticdecodeA json formatted object in the following format (values are orientative):
{
version: 10000,
archive3dm: 60,
opennurbs: -1877964208,
data: 'encoded 3dm object data'
}
Gets the maximum algebraic degree of any span or a good estimate if curve spans are not algebraic.