RhinoCommon API

## NurbsSurface Methods |

The NurbsSurface type exposes the following members.

Methods

Name | Description | |
---|---|---|

ClosestPoint |
Input the parameters of the point on the surface that is closest to testPoint.
(Inherited from Surface.) | |

ClosestSide |
Gets the side that is closest, in terms of 3D-distance, to a U and V parameter.
(Inherited from Surface.) | |

ComponentIndex |
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.) | |

ConstructConstObject |
Assigns a parent object and a subobject index to this.
(Inherited from CommonObject.) | |

CopyFrom |
Copies this NURBS surface from another NURBS surface.
| |

Create |
Constructs a new NURBS surface with internal uninitialized arrays.
| |

CreateCurveOnSurface |
Fit a sequence of 2d points on a surface to make a curve on the surface.
| |

CreateCurveOnSurfacePoints |
Computes a discrete spline curve on the surface. In other words, computes a sequence
of points on the surface, each with a corresponding parameter value.
| |

CreateFromCone |
Constructs a new NURBS surfaces from cone data.
| |

CreateFromCorners(Point3d, Point3d, Point3d) |
Makes a surface from 3 corner points.
| |

CreateFromCorners(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. | |

CreateFromCorners(Point3d, Point3d, Point3d, Point3d, Double) |
Makes a surface from 4 corner points.
| |

CreateFromCylinder |
Constructs a new NURBS surfaces from cylinder data.
| |

CreateFromPoints |
Constructs a NURBS surface from a 2D grid of control points.
| |

CreateFromSphere |
Constructs a new NURBS surfaces from sphere data.
| |

CreateFromTorus |
Constructs a new NURBS surfaces from torus data.
| |

CreateNetworkSurface(IEnumerableCurve, Int32, Double, Double, Double, Int32) |
Builds a surface from an autosorted network of curves/edges.
| |

CreateNetworkSurface(IEnumerableCurve, Int32, Int32, IEnumerableCurve, Int32, Int32, Double, Double, Double, Int32) |
Builds a surface from an ordered network of curves/edges.
| |

CreateRailRevolvedSurface |
Constructs a railed Surface-of-Revolution.
| |

CreateRuledSurface |
Constructs a ruled surface between two curves. Curves must share the same knot-vector.
| |

CreateThroughPoints |
Constructs a NURBS surface from a 2D grid of points.
| |

CurvatureAt |
Computes the curvature at the given UV coordinate.
(Inherited from Surface.) | |

Degree |
Returns the maximum algebraic degree of any span
(or a good estimate if curve spans are not algebraic).
(Inherited from Surface.) | |

Dispose |
Actively reclaims unmanaged resources that this instance uses.
(Inherited from CommonObject.) | |

Dispose(Boolean) |
Overridden in order to destroy local display cache information
(Inherited from GeometryBase.) | |

Domain | Gets the domain in a direction. (Inherited from Surface.) | |

Duplicate |
Constructs a deep (full) copy of this object.
(Inherited from GeometryBase.) | |

DuplicateShallow |
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.) | |

EnsurePrivateCopy |
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.) | |

EpsilonEquals |
Check that all values in other are within epsilon of the values in this
| |

Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) | |

Evaluate |
Evaluates a surface mathematically.
(Inherited from Surface.) | |

Extend |
Extends an untrimmed surface along one edge.
(Inherited from Surface.) | |

Finalize |
Passively reclaims unmanaged resources when the class user did not explicitly call Dispose().
(Inherited from CommonObject.) | |

Fit | Fits a new surface through an existing surface. (Inherited from Surface.) | |

FrameAt |
Computes the orient plane on a surface given a U and V parameter.
(Inherited from Surface.)This is the simple evaluation call with no error handling. | |

GetBoundingBox(Boolean) |
Boundingbox solver. Gets the world axis aligned boundingbox for the geometry.
(Inherited from GeometryBase.) | |

GetBoundingBox(Plane) |
Aligned Boundingbox solver. Gets the plane aligned boundingbox.
(Inherited from GeometryBase.) | |

GetBoundingBox(Transform) |
Aligned Boundingbox solver. Gets the world axis aligned boundingbox for the transformed geometry.
(Inherited from GeometryBase.) | |

GetBoundingBox(Plane, Box) |
Aligned Boundingbox solver. Gets the plane aligned boundingbox.
(Inherited from GeometryBase.) | |

GetHashCode | Serves as the default hash function. (Inherited from Object.) | |

GetNextDiscontinuity |
Searches for a derivative, tangent, or curvature discontinuity.
(Inherited from Surface.) | |

GetNurbsFormParameterFromSurfaceParameter |
Translates a parameter from the current surface to the parameter space of the surface returned by ToNurbsSurface.
(Inherited from Surface.) | |

GetObjectData |
Populates a System.Runtime.Serialization.SerializationInfo with the data needed to serialize the target object.
(Inherited from CommonObject.) | |

GetSpanVector |
Gets array of span "knots".
(Inherited from Surface.) | |

GetSurfaceParameterFromNurbsFormParameter |
Translates a parameter from a value on the surface returned by ToNurbsSurface to the current surface.
(Inherited from Surface.) | |

GetSurfaceSize |
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.) | |

GetType | Gets the Type of the current instance. (Inherited from Object.) | |

GetUserString |
Gets user string from this geometry.
(Inherited from GeometryBase.) | |

GetUserStrings |
Gets a copy of all (user key string, user value string) pairs attached to this geometry.
(Inherited from GeometryBase.) | |

HasNurbsForm |
Is there a NURBS surface representation of this surface.
(Inherited from Surface.) | |

IncreaseDegreeU |
Increase the degree of this surface in U direction.
| |

IncreaseDegreeV |
Increase the degree of this surface in V direction.
| |

InterpolatedCurveOnSurface |
Constructs an interpolated curve on a surface, using 3D points.
(Inherited from Surface.) | |

InterpolatedCurveOnSurfaceUV(IEnumerablePoint2d, Double) |
Returns a curve that interpolates points on a surface. The interpolant lies on the surface.
(Inherited from Surface.) | |

InterpolatedCurveOnSurfaceUV(IEnumerablePoint2d, Double, Boolean, Int32) |
Returns a curve that interpolates points on a surface. The interpolant lies on the surface.
(Inherited from Surface.) | |

IsAtSeam |
Tests if a surface parameter value is at a seam.
(Inherited from Surface.) | |

IsAtSingularity |
Tests if a surface parameter value is at a singularity.
(Inherited from Surface.) | |

IsClosed |
Gets a value indicating if the surface is closed in a direction.
(Inherited from Surface.) | |

IsCone |
Determines if the surface is a portion of a cone within RhinoMath.ZeroTolerance.
(Inherited from Surface.) | |

IsCone(Double) | Determines if the surface is a portion of a cone within a given tolerance. (Inherited from Surface.) | |

IsContinuous |
Tests continuity at a surface parameter value.
(Inherited from Surface.) | |

IsCylinder |
Determines if the surface is a portion of a cylinder within RhinoMath.ZeroTolerance.
(Inherited from Surface.) | |

IsCylinder(Double) | Determines if the surface is a portion of a cylinder within a given tolerance. (Inherited from Surface.) | |

IsIsoparametric(BoundingBox) |
Determines if a 2d bounding box is iso-parameteric in the parameter space of this surface.
(Inherited from Surface.) | |

IsIsoparametric(Curve) |
Determines if a 2d curve is iso-parameteric in the parameter space of this surface.
(Inherited from Surface.) | |

IsIsoparametric(Curve, Interval) |
Determines if a 2D curve is iso-parameteric in the parameter space of this surface.
(Inherited from Surface.) | |

IsoCurve | Gets isoparametric curve. (Inherited from Surface.) | |

IsPeriodic |
Gets a value indicating if thr surface is periodic in a direction (default is false).
(Inherited from Surface.) | |

IsPlanar |
Tests a surface to see if it is planar to zero tolerance.
(Inherited from Surface.) | |

IsPlanar(Double) |
Tests a surface to see if it is planar to a given tolerance.
(Inherited from Surface.) | |

IsSingular |
true if surface side is collapsed to a point.
(Inherited from Surface.) | |

IsSphere |
Determines if the surface is a portion of a sphere within RhinoMath.ZeroTolerance.
(Inherited from Surface.) | |

IsSphere(Double) |
Determines if the surface is a portion of a sphere within a given tolerance.
(Inherited from Surface.) | |

IsTorus | Determines if the surface is a portion of a torus within RhinoMath.ZeroTolerance. (Inherited from Surface.) | |

IsTorus(Double) | Determines if the surface is a portion of a torus within a given tolerance. (Inherited from Surface.) | |

IsValidWithLog |
Determines if an object is valid. Also provides a report on errors if this
object happens not to be valid.
(Inherited from CommonObject.) | |

LocalClosestPoint |
Find parameters of the point on a surface that is locally closest to
the testPoint. The search for a local close point starts at seed parameters.
(Inherited from Surface.) | |

MakeCompatible |
For expert use only. Makes a pair of compatible NURBS surfaces based on two input surfaces.
| |

MakeDeformable |
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.) | |

MakeNonRational |
Makes this surface non-rational.
| |

MakeRational |
Makes this surface rational.
| |

MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) | |

MemoryEstimate |
Computes an estimate of the number of bytes that this object is using in memory.
(Inherited from GeometryBase.) | |

NonConstOperation |
Destroy cache handle
(Inherited from GeometryBase.) | |

NormalAt |
Computes the surface normal at a point.
(Inherited from Surface.)This is the simple evaluation call - it does not support error handling. | |

Offset |
Constructs a new surface which is offset from the current surface.
(Inherited from Surface.) | |

OnSwitchToNonConst |
Is called when a non-const operation occurs.
(Inherited from GeometryBase.) | |

PointAt |
Evaluates a point at a given parameter.
(Inherited from Surface.) | |

Pullback(Curve, Double) |
Pulls a 3d curve back to the surface's parameter space.
(Inherited from Surface.) | |

Pullback(Curve, Double, Interval) |
Pulls a 3d curve back to the surface's parameter space.
(Inherited from Surface.) | |

Pushup(Curve, Double) |
Computes a 3d curve that is the composite of a 2d curve and the surface map.
(Inherited from Surface.) | |

Pushup(Curve, Double, Interval) |
Computes a 3d curve that is the composite of a 2d curve and the surface map.
(Inherited from Surface.) | |

Rebuild |
Rebuilds an existing surface to a given degree and point count.
(Inherited from Surface.) | |

RebuildOneDirection |
Rebuilds an existing surface with a new surface to a given point count in either the u or v directions independently.
(Inherited from Surface.) | |

Reverse(Int32) |
Reverses parameterization Domain changes from [a,b] to [-b,-a]
(Inherited from Surface.) | |

Reverse(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.) | |

Rotate |
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.) | |

Scale |
Scales the object by the specified factor. The scale is centered at the origin.
(Inherited from GeometryBase.) | |

SetDomain |
Sets the domain in a direction.
(Inherited from Surface.) | |

SetUserString |
Attach a user string (key,value combination) to this geometry.
(Inherited from GeometryBase.) | |

ShortPath |
Constructs a geodesic between 2 points, used by ShortPath command in Rhino.
(Inherited from Surface.) | |

Smooth(Double, Boolean, Boolean, Boolean, Boolean, SmoothingCoordinateSystem) |
Smooths a surface by averaging the positions of control points in a specified region.
(Inherited from Surface.) | |

Smooth(Double, Boolean, Boolean, Boolean, Boolean, SmoothingCoordinateSystem, Plane) |
Smooths a surface by averaging the positions of control points in a specified region.
(Inherited from Surface.) | |

SpanCount |
Gets number of smooth nonempty spans in the parameter direction.
(Inherited from Surface.) | |

Split |
Splits (divides) the surface into two parts at the specified parameter
(Inherited from Surface.) | |

ToBrep |
Converts the surface into a Brep.
(Inherited from Surface.) | |

ToNurbsSurface |
Gets a NURBS surface representation of this surface. Default
tolerance of 0.0 is used.
(Inherited from Surface.) | |

ToNurbsSurface(Double, Int32) |
Gets a NURBS surface representation of this surface.
(Inherited from Surface.) | |

ToString | Returns a string that represents the current object. (Inherited from Object.) | |

Transform |
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.) | |

Translate(Vector3d) | Translates the object along the specified vector. (Inherited from GeometryBase.) | |

Translate(Double, Double, Double) | Translates the object along the specified vector. (Inherited from GeometryBase.) | |

Transpose |
Transposes surface parameterization (swap U and V)
(Inherited from Surface.) | |

Transpose(Boolean) |
Transposes surface parameterization (swap U and V)
(Inherited from Surface.) | |

Trim |
Constructs a sub-surface that covers the specified UV trimming domain.
(Inherited from Surface.) | |

TryGetCone(Cone) | Tests a surface to see if it is a portion of a cone within RhinoMath.ZeroTolerance and return the cone. (Inherited from Surface.) | |

TryGetCone(Cone, Double) | Tests a surface to see if it is a portion of a cone and returns the cone. (Inherited from Surface.) | |

TryGetCylinder(Cylinder) | Tests a surface to see if it is a portion of a cylinder within RhinoMath.ZeroTolerance and return the cylinder. (Inherited from Surface.) | |

TryGetCylinder(Cylinder, Double) | Tests a surface to see if it is a portion of a cylinder and return the infinite cylinder. (Inherited from Surface.) | |

TryGetFiniteCylinder | Tests a surface with the assumption that it might be a right circular cylinder and returns this geometry. (Inherited from Surface.) | |

TryGetPlane(Plane) | Tests a surface for planarity and return the plane. (Inherited from Surface.) | |

TryGetPlane(Plane, Double) | Tests a surface for planarity and return the plane. (Inherited from Surface.) | |

TryGetSphere(Sphere) | Test a surface to see if it is a portion of a sphere and return the sphere. (Inherited from Surface.) | |

TryGetSphere(Sphere, Double) | Test a surface to see if it is a portion of a sphere and return the sphere. (Inherited from Surface.) | |

TryGetTorus(Torus) | Tests a surface to see if it is a portion of a torus within RhinoMath.ZeroTolerance and returns the torus. (Inherited from Surface.) | |

TryGetTorus(Torus, Double) | Tests a surface to see if it is a portion of a torus and returns the torus. (Inherited from Surface.) | |

VariableOffset(Double, Double, Double, Double, Double) |
Copies a surface so that all locations at the corners of the copied surface are specified distances from the original surface.
(Inherited from Surface.) | |

VariableOffset(Double, Double, Double, Double, IEnumerablePoint2d, IEnumerableDouble, Double) |
Copies a surface so that all locations at the corners, and from specified interior locations, of the copied surface are specified distances from the original surface.
(Inherited from Surface.) |

See Also