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NurbsSurface Methods

The NurbsSurface type exposes the following members.

Methods
  NameDescription
Public methodCode exampleClosestPoint
Input the parameters of the point on the surface that is closest to testPoint.
(Inherited from Surface.)
Public methodClosestSide
Gets the side that is closest, in terms of 3D-distance, to a U and V parameter.
(Inherited from Surface.)
Public methodComponentIndex
If this piece of geometry is a component in something larger, like a BrepEdge in a Brep, then this function returns the component index.
(Inherited from GeometryBase.)
Protected methodConstructConstObject
Assigns a parent object and a subobject index to this.
(Inherited from CommonObject.)
Public methodCopyFrom
Copies this NURBS surface from another NURBS surface.
Public methodStatic memberCode exampleCreate
Constructs a new NURBS surface with internal uninitialized arrays.
Public methodStatic memberCreateFromCone
Constructs a new NURBS surfaces from cone data.
Public methodStatic memberCreateFromCorners(Point3d, Point3d, Point3d)
Makes a surface from 3 corner points.
Public methodStatic memberCode exampleCreateFromCorners(Point3d, Point3d, Point3d, Point3d)
Makes a surface from 4 corner points.

This is the same as calling CreateFromCorners(Point3d, Point3d, Point3d, Point3d, Double) with tolerance 0.

Public methodStatic memberCreateFromCorners(Point3d, Point3d, Point3d, Point3d, Double)
Makes a surface from 4 corner points.
Public methodStatic memberCreateFromCylinder
Constructs a new NURBS surfaces from cylinder data.
Public methodStatic memberCreateFromPoints
Constructs a NURBS surface from a 2D grid of control points.
Public methodStatic memberCreateFromSphere
Constructs a new NURBS surfaces from sphere data.
Public methodStatic memberCreateFromTorus
Constructs a new NURBS surfaces from torus data.
Public methodStatic memberCreateNetworkSurface(IEnumerableCurve, Int32, Double, Double, Double, Int32)
Builds a surface from an autosorted network of curves/edges.
Public methodStatic memberCreateNetworkSurface(IEnumerableCurve, Int32, Int32, IEnumerableCurve, Int32, Int32, Double, Double, Double, Int32)
Builds a surface from an ordered network of curves/edges.
Public methodStatic memberCreateRailRevolvedSurface
Constructs a railed Surface-of-Revolution.
Public methodStatic memberCreateRuledSurface
Constructs a ruled surface between two curves. Curves must share the same knot-vector.
Public methodStatic memberCreateThroughPoints
Constructs a NURBS surface from a 2D grid of points.
Public methodCode exampleCurvatureAt
Computes the curvature at the given UV coordinate.
(Inherited from Surface.)
Public methodDegree
Returns the maximum algebraic degree of any span (or a good estimate if curve spans are not algebraic).
(Inherited from Surface.)
Public methodDispose
Actively reclaims unmanaged resources that this instance uses.
(Inherited from CommonObject.)
Protected methodDispose(Boolean)
For derived class implementers.

This method is called with argument true when class user calls Dispose(), while with argument false when the Garbage Collector invokes the finalizer, or Finalize() method.

You must reclaim all used unmanaged resources in both cases, and can use this chance to call Dispose on disposable fields if the argument is true.

Also, you must call the base virtual method within your overriding method.

(Inherited from CommonObject.)
Public methodDomain
Gets the domain in a direction.
(Inherited from Surface.)
Public methodDuplicate
Constructs a deep (full) copy of this object.
(Inherited from GeometryBase.)
Public methodDuplicateShallow
Constructs a light copy of this object. By "light", it is meant that the same underlying data is used until something is done to attempt to change it. For example, you could have a shallow copy of a very heavy mesh object and the same underlying data will be used when doing things like inspecting the number of faces on the mesh. If you modify the location of one of the mesh vertices, the shallow copy will create a full duplicate of the underlying mesh data and the shallow copy will become a deep copy.
(Inherited from GeometryBase.)
Public methodEnsurePrivateCopy
If you want to keep a copy of this class around by holding onto it in a variable after a command completes, call EnsurePrivateCopy to make sure that this class is not tied to the document. You can call this function as many times as you want.
(Inherited from CommonObject.)
Public methodEpsilonEquals
Check that all values in other are within epsilon of the values in this
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Public methodEvaluate
Evaluates a surface mathematically.
(Inherited from Surface.)
Public methodExtend
Extends an untrimmed surface along one edge.
(Inherited from Surface.)
Protected methodFinalize
Passively reclaims unmanaged resources when the class user did not explicitly call Dispose().
(Inherited from CommonObject.)
Public methodFit
Fits a new surface through an existing surface.
(Inherited from Surface.)
Public methodCode exampleFrameAt
Computes the orient plane on a surface given a U and V parameter.

This is the simple evaluation call with no error handling.

(Inherited from Surface.)
Public methodCode exampleGetBoundingBox(Boolean)
Boundingbox solver. Gets the world axis aligned boundingbox for the geometry.
(Inherited from GeometryBase.)
Public methodCode exampleGetBoundingBox(Plane)
Aligned Boundingbox solver. Gets the plane aligned boundingbox.
(Inherited from GeometryBase.)
Public methodGetBoundingBox(Transform)
Aligned Boundingbox solver. Gets the world axis aligned boundingbox for the transformed geometry.
(Inherited from GeometryBase.)
Public methodGetBoundingBox(Plane, Box)
Aligned Boundingbox solver. Gets the plane aligned boundingbox.
(Inherited from GeometryBase.)
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetNextDiscontinuity
Searches for a derivative, tangent, or curvature discontinuity.
(Inherited from Surface.)
Public methodGetObjectData
Populates a System.Runtime.Serialization.SerializationInfo with the data needed to serialize the target object.
(Inherited from CommonObject.)
Public methodGetSpanVector
Gets array of span "knots".
(Inherited from Surface.)
Public methodCode exampleGetSurfaceSize
Gets an estimate of the size of the rectangle that would be created if the 3d surface where flattened into a rectangle.
(Inherited from Surface.)
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodGetUserString
Gets user string from this geometry.
(Inherited from GeometryBase.)
Public methodGetUserStrings
Gets a copy of all (user key string, user value string) pairs attached to this geometry.
(Inherited from GeometryBase.)
Public methodHasNurbsForm
Is there a NURBS surface representation of this surface.
(Inherited from Surface.)
Public methodCode exampleIncreaseDegreeU
Increase the degree of this surface in U direction.
Public methodCode exampleIncreaseDegreeV
Increase the degree of this surface in V direction.
Public methodInterpolatedCurveOnSurface
Constructs an interpolated curve on a surface, using 3D points.
(Inherited from Surface.)
Public methodInterpolatedCurveOnSurfaceUV
Constructs an interpolated curve on a surface, using 2D surface points.
(Inherited from Surface.)
Public methodIsAtSeam
Tests if a surface parameter value is at a seam.
(Inherited from Surface.)
Public methodIsAtSingularity
Tests if a surface parameter value is at a singularity.
(Inherited from Surface.)
Public methodIsClosed
Gets a value indicating if the surface is closed in a direction.
(Inherited from Surface.)
Public methodIsCone
Determines if the surface is a portion of a cone within RhinoMath.ZeroTolerance.
(Inherited from Surface.)
Public methodIsCone(Double)
Determines if the surface is a portion of a cone within a given tolerance.
(Inherited from Surface.)
Public methodIsContinuous
Tests continuity at a surface parameter value.
(Inherited from Surface.)
Public methodIsCylinder
Determines if the surface is a portion of a cylinder within RhinoMath.ZeroTolerance.
(Inherited from Surface.)
Public methodIsCylinder(Double)
Determines if the surface is a portion of a cylinder within a given tolerance.
(Inherited from Surface.)
Public methodIsIsoparametric(BoundingBox)
Determines if a 2d bounding box is iso-parameteric in the parameter space of this surface.
(Inherited from Surface.)
Public methodIsIsoparametric(Curve)
Determines if a 2d curve is iso-parameteric in the parameter space of this surface.
(Inherited from Surface.)
Public methodIsIsoparametric(Curve, Interval)
Determines if a 2D curve is iso-parameteric in the parameter space of this surface.
(Inherited from Surface.)
Public methodCode exampleIsoCurve
Gets isoparametric curve.
(Inherited from Surface.)
Public methodIsPeriodic
Gets a value indicating if thr surface is periodic in a direction (default is false).
(Inherited from Surface.)
Public methodCode exampleIsPlanar
Tests a surface to see if it is planar to zero tolerance.
(Inherited from Surface.)
Public methodIsPlanar(Double)
Tests a surface to see if it is planar to a given tolerance.
(Inherited from Surface.)
Public methodIsSingular
true if surface side is collapsed to a point.
(Inherited from Surface.)
Public methodIsSphere
Determines if the surface is a portion of a sphere within RhinoMath.ZeroTolerance.
(Inherited from Surface.)
Public methodIsSphere(Double)
Determines if the surface is a portion of a sphere within a given tolerance.
(Inherited from Surface.)
Public methodIsTorus
Determines if the surface is a portion of a torus within RhinoMath.ZeroTolerance.
(Inherited from Surface.)
Public methodIsTorus(Double)
Determines if the surface is a portion of a torus within a given tolerance.
(Inherited from Surface.)
Public methodIsValidWithLog
Determines if an object is valid. Also provides a report on errors if this object happens not to be valid.
(Inherited from CommonObject.)
Public methodMakeDeformable
If possible, converts the object into a form that can be accurately modified with "squishy" transformations like projections, shears, an non-uniform scaling.
(Inherited from GeometryBase.)
Public methodMakeNonRational
Makes this surface non-rational.
Public methodMakeRational
Makes this surface rational.
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodMemoryEstimate
Computes an estimate of the number of bytes that this object is using in memory.
(Inherited from GeometryBase.)
Protected methodNonConstOperation
For derived classes implementers.

Defines the necessary implementation to free the instance from being const.

(Inherited from CommonObject.)
Public methodCode exampleNormalAt
Computes the surface normal at a point.

This is the simple evaluation call - it does not support error handling.

(Inherited from Surface.)
Public methodOffset
Constructs a new surface which is offset from the current surface.
(Inherited from Surface.)
Protected methodOnSwitchToNonConst
Is called when a non-const operation occurs.
(Inherited from GeometryBase.)
Public methodPointAt
Evaluates a point at a given parameter.
(Inherited from Surface.)
Public methodPullback(Curve, Double)
Pulls a 3d curve back to the surface's parameter space.
(Inherited from Surface.)
Public methodPullback(Curve, Double, Interval)
Pulls a 3d curve back to the surface's parameter space.
(Inherited from Surface.)
Public methodPushup(Curve, Double)
Computes a 3d curve that is the composite of a 2d curve and the surface map.
(Inherited from Surface.)
Public methodPushup(Curve, Double, Interval)
Computes a 3d curve that is the composite of a 2d curve and the surface map.
(Inherited from Surface.)
Public methodRebuild
Rebuilds an existing surface to a given degree and point count.
(Inherited from Surface.)
Public methodReverse(Int32)
Reverses parameterization Domain changes from [a,b] to [-b,-a]
(Inherited from Surface.)
Public methodReverse(Int32, Boolean)
Same as Reverse, but if inPlace is set to true this Surface is modified instead of a new copy being created.
(Inherited from Surface.)
Public methodRotate
Rotates the object about the specified axis. A positive rotation angle results in a counter-clockwise rotation about the axis (right hand rule).
(Inherited from GeometryBase.)
Public methodScale
Scales the object by the specified factor. The scale is centered at the origin.
(Inherited from GeometryBase.)
Public methodSetDomain
Sets the domain in a direction.
(Inherited from Surface.)
Public methodSetUserString
Attach a user string (key,value combination) to this geometry.
(Inherited from GeometryBase.)
Public methodShortPath
Constructs a geodesic between 2 points, used by ShortPath command in Rhino.
(Inherited from Surface.)
Public methodSpanCount
Gets number of smooth nonempty spans in the parameter direction.
(Inherited from Surface.)
Public methodSplit
Splits (divides) the surface into two parts at the specified parameter
(Inherited from Surface.)
Public methodToBrep
Converts the surface into a Brep.
(Inherited from Surface.)
Public methodToNurbsSurface
Gets a NURBS surface representation of this surface. Default tolerance of 0.0 is used.
(Inherited from Surface.)
Public methodToNurbsSurface(Double, Int32)
Gets a NURBS surface representation of this surface.
(Inherited from Surface.)
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodTransform
Transforms the geometry. If the input Transform has a SimilarityType of OrientationReversing, you may want to consider flipping the transformed geometry after calling this function when it makes sense. For example, you may want to call Flip() on a Brep after transforming it.
(Inherited from GeometryBase.)
Public methodTranslate(Vector3d)
Translates the object along the specified vector.
(Inherited from GeometryBase.)
Public methodTranslate(Double, Double, Double)
Translates the object along the specified vector.
(Inherited from GeometryBase.)
Public methodTranspose
Transposes surface parameterization (swap U and V)
(Inherited from Surface.)
Public methodTranspose(Boolean)
Transposes surface parameterization (swap U and V)
(Inherited from Surface.)
Public methodTrim
Constructs a sub-surface that covers the specified UV trimming domain.
(Inherited from Surface.)
Public methodTryGetCone(Cone)
Tests a surface to see if it is a portion of a cone within RhinoMath.ZeroTolerance and return the cone.
(Inherited from Surface.)
Public methodTryGetCone(Cone, Double)
Tests a surface to see if it is a portion of a cone and returns the cone.
(Inherited from Surface.)
Public methodTryGetCylinder(Cylinder)
Tests a surface to see if it is a portion of a cylinder within RhinoMath.ZeroTolerance and return the cylinder.
(Inherited from Surface.)
Public methodTryGetCylinder(Cylinder, Double)
Tests a surface to see if it is a portion of a cylinder and return the cylinder.
(Inherited from Surface.)
Public methodTryGetPlane(Plane)
Tests a surface for planarity and return the plane.
(Inherited from Surface.)
Public methodCode exampleTryGetPlane(Plane, Double)
Tests a surface for planarity and return the plane.
(Inherited from Surface.)
Public methodTryGetSphere(Sphere)
Test a surface to see if it is a portion of a sphere and return the sphere.
(Inherited from Surface.)
Public methodTryGetSphere(Sphere, Double)
Test a surface to see if it is a portion of a sphere and return the sphere.
(Inherited from Surface.)
Public methodTryGetTorus(Torus)
Tests a surface to see if it is a portion of a torus within RhinoMath.ZeroTolerance and returns the torus.
(Inherited from Surface.)
Public methodTryGetTorus(Torus, Double)
Tests a surface to see if it is a portion of a torus and returns the torus.
(Inherited from Surface.)
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