Skip to content

T_Rhino_Geometry_BrepFace

Will Pearson edited this page Aug 12, 2016 · 2 revisions

BrepFace Class

Provides strongly-typed access to brep faces. A Brep face is composed of one surface and trimming curves.

Inheritance Hierarchy

System.Object
  Rhino.Runtime.CommonObject
    Rhino.Geometry.GeometryBase
      Rhino.Geometry.Surface
        Rhino.Geometry.SurfaceProxy
          Rhino.Geometry.BrepFace
Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll) Version: Rhino 6.0

Syntax

C#

public class BrepFace : SurfaceProxy

VB

Public Class BrepFace
	Inherits SurfaceProxy

The BrepFace type exposes the following members.

Properties

 

Name Description
Public property FaceIndex Index of face in Brep.Faces array.
Public property HasBrepForm Returns true if the Brep.TryConvertBrep function will be successful for this object (Inherited from GeometryBase.)
Public property HasUserData Gets true if this class has any custom information attached to it through UserData. (Inherited from CommonObject.)
Public property IsDeformable true if object can be accurately modified with "squishy" transformations like projections, shears, and non-uniform scaling. (Inherited from GeometryBase.)
Public property IsDocumentControlled If true this object may not be modified. Any properties or functions that attempt to modify this object when it is set to "IsReadOnly" will throw a NotSupportedException. (Inherited from GeometryBase.)
Public property IsSolid Gets a values indicating whether a surface is solid. (Inherited from Surface.)
Public property IsSurface Gets a value indicating whether the face is synonymous with the underlying surface. If a Face has no trimming curves then it is considered a Surface.
Public property IsValid Tests an object to see if it is valid. (Inherited from CommonObject.)
Public property Loops Loops in this face.
Public property ObjectType Useful for switch statements that need to differentiate between basic object types like points, curves, surfaces, and so on. (Inherited from GeometryBase.)
Public propertyCode example OrientationIsReversed true if face orientation is opposite of natural surface orientation.
Public property OuterLoop Every face has a single outer loop.
Public property SurfaceIndex Surface index of the 3d surface geometry used by this face or -1
Public property UserData List of custom information that is attached to this class. (Inherited from CommonObject.)
Public property UserDictionary Dictionary of custom information attached to this class. The dictionary is actually user data provided as an easy to use sharable set of information. (Inherited from CommonObject.)
Public property UserStringCount Gets the amount of user strings. (Inherited from GeometryBase.)
  Back to Top

Methods

 

Name Description
Public method AdjacentEdges Gets the indices of all the BrepEdges that delineate this Face.
Public method AdjacentFaces Gets the indices of all the BrepFaces that surround (are adjacent to) this face.
Public method ChangeSurface Expert user tool that replaces the 3d surface geometry use by the face.
Public methodCode example ClosestPoint Input the parameters of the point on the surface that is closest to testPoint. (Inherited from Surface.)
Public method ClosestSide Gets the side that is closest, in terms of 3D-distance, to a U and V parameter. (Inherited from Surface.)
Public method 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.)
Protected method ConstructConstObject Assigns a parent object and a subobject index to this. (Inherited from CommonObject.)
Public method CreateExtrusion Extrude a face in a Brep.
Public methodCode example CurvatureAt Computes the curvature at the given UV coordinate. (Inherited from Surface.)
Public method Degree Returns the maximum algebraic degree of any span (or a good estimate if curve spans are not algebraic). (Inherited from Surface.)
Public method Dispose() Actively reclaims unmanaged resources that this instance uses. (Inherited from CommonObject.)
Protected method Dispose(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 method Domain Gets the domain in a direction. (Inherited from Surface.)
Public method DraftAnglePoint Returns the surface draft angle and point at a parameter.
Public method Duplicate Constructs a deep (full) copy of this object. (Inherited from GeometryBase.)
Public method DuplicateFace Duplicate a face from the brep to create new single face brep.
Public method 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.)
Public method DuplicateSurface Gets a copy to the untrimmed surface that this face is based on.
Public method 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.)
Public method Equals Determines whether the specified object is equal to the current object. (Inherited from Object.)
Public method Evaluate Evaluates a surface mathematically. (Inherited from Surface.)
Public method Extend Extends an untrimmed surface along one edge. (Inherited from Surface.)
Protected method Finalize() Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Protected method Finalize() Passively reclaims unmanaged resources when the class user did not explicitly call Dispose(). (Inherited from CommonObject.)
Public method Fit Fits a new surface through an existing surface. (Inherited from Surface.)
Public methodCode example FrameAt 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 example GetBoundingBox(Boolean) Boundingbox solver. Gets the world axis aligned boundingbox for the geometry. (Inherited from GeometryBase.)
Public methodCode example GetBoundingBox(Plane) Aligned Boundingbox solver. Gets the plane aligned boundingbox. (Inherited from GeometryBase.)
Public method GetBoundingBox(Transform) Aligned Boundingbox solver. Gets the world axis aligned boundingbox for the transformed geometry. (Inherited from GeometryBase.)
Public method GetBoundingBox(Plane, Box) Aligned Boundingbox solver. Gets the plane aligned boundingbox. (Inherited from GeometryBase.)
Public method GetHashCode Serves as the default hash function. (Inherited from Object.)
Public method GetMesh Obtains a reference to a specified type of mesh for this brep face.
Public method GetNextDiscontinuity Searches for a derivative, tangent, or curvature discontinuity. (Inherited from Surface.)
Public method GetObjectData Populates a System.Runtime.Serialization.SerializationInfo with the data needed to serialize the target object. (Inherited from CommonObject.)
Public method GetSpanVector Gets array of span "knots". (Inherited from Surface.)
Public methodCode example 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.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Public method GetUserString Gets user string from this geometry. (Inherited from GeometryBase.)
Public method GetUserStrings Gets a copy of all (user key string, user value string) pairs attached to this geometry. (Inherited from GeometryBase.)
Public method HasNurbsForm Is there a NURBS surface representation of this surface. (Inherited from Surface.)
Public method InterpolatedCurveOnSurface Constructs an interpolated curve on a surface, using 3D points. (Inherited from Surface.)
Public method InterpolatedCurveOnSurfaceUV Constructs an interpolated curve on a surface, using 2D surface points. (Inherited from Surface.)
Public method IsAtSeam Tests if a surface parameter value is at a seam. (Inherited from Surface.)
Public method IsAtSingularity Tests if a surface parameter value is at a singularity. (Inherited from Surface.)
Public method IsClosed Gets a value indicating if the surface is closed in a direction. (Inherited from Surface.)
Public method IsCone() Determines if the surface is a portion of a cone within RhinoMath.ZeroTolerance. (Inherited from Surface.)
Public method IsCone(Double) Determines if the surface is a portion of a cone within a given tolerance. (Inherited from Surface.)
Public method IsContinuous Tests continuity at a surface parameter value. (Inherited from Surface.)
Public method IsCylinder() Determines if the surface is a portion of a cylinder within RhinoMath.ZeroTolerance. (Inherited from Surface.)
Public method IsCylinder(Double) Determines if the surface is a portion of a cylinder within a given tolerance. (Inherited from Surface.)
Public method IsIsoparametric(BoundingBox) Determines if a 2d bounding box is iso-parameteric in the parameter space of this surface. (Inherited from Surface.)
Public method IsIsoparametric(Curve) Determines if a 2d curve is iso-parameteric in the parameter space of this surface. (Inherited from Surface.)
Public method IsIsoparametric(Curve, Interval) Determines if a 2D curve is iso-parameteric in the parameter space of this surface. (Inherited from Surface.)
Public methodCode example IsoCurve Gets isoparametric curve. (Inherited from Surface.)
Public method IsPeriodic Gets a value indicating if thr surface is periodic in a direction (default is false). (Inherited from Surface.)
Public methodCode example IsPlanar() Tests a surface to see if it is planar to zero tolerance. (Inherited from Surface.)
Public method IsPlanar(Double) Tests a surface to see if it is planar to a given tolerance. (Inherited from Surface.)
Public method IsPointOnFace Tests if a parameter space point is on the interior of a trimmed face.
Public method IsSingular true if surface side is collapsed to a point. (Inherited from Surface.)
Public method IsSphere() Determines if the surface is a portion of a sphere within RhinoMath.ZeroTolerance. (Inherited from Surface.)
Public method IsSphere(Double) Determines if the surface is a portion of a sphere within a given tolerance. (Inherited from Surface.)
Public method IsTorus() Determines if the surface is a portion of a torus within RhinoMath.ZeroTolerance. (Inherited from Surface.)
Public method IsTorus(Double) Determines if the surface is a portion of a torus within a given tolerance. (Inherited from Surface.)
Public method IsValidWithLog Determines if an object is valid. Also provides a report on errors if this object happens not to be valid. (Inherited from CommonObject.)
Public method 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.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Public method MemoryEstimate Computes an estimate of the number of bytes that this object is using in memory. (Inherited from GeometryBase.)
Protected method NonConstOperation For derived classes implementers. Defines the necessary implementation to free the instance from being const.

(Inherited from CommonObject.)

Public methodCode example NormalAt Computes the surface normal at a point. This is the simple evaluation call - it does not support error handling.

(Inherited from Surface.)

Public method Offset Constructs a new surface which is offset from the current surface. (Inherited from Surface.)
Protected method OnSwitchToNonConst Is called when a non-const operation occurs. (Inherited from GeometryBase.)
Public method PointAt Evaluates a point at a given parameter. (Inherited from Surface.)
Public method Pullback(Curve, Double) Pulls a 3d curve back to the surface's parameter space. (Inherited from Surface.)
Public method Pullback(Curve, Double, Interval) Pulls a 3d curve back to the surface's parameter space. (Inherited from Surface.)
Public method PullPointsToFace Pulls one or more points to a brep face.
Public method Pushup(Curve, Double) Computes a 3d curve that is the composite of a 2d curve and the surface map. (Inherited from Surface.)
Public method Pushup(Curve, Double, Interval) Computes a 3d curve that is the composite of a 2d curve and the surface map. (Inherited from Surface.)
Public method Rebuild Rebuilds an existing surface to a given degree and point count. (Inherited from Surface.)
Public method RebuildEdges Rebuild the edges used by a face so they lie on the surface.
Public method Reverse(Int32) Reverses parameterization Domain changes from [a,b] to [-b,-a] (Inherited from Surface.)
Public method 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.)
Public method 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.)
Public method Scale Scales the object by the specified factor. The scale is centered at the origin. (Inherited from GeometryBase.)
Public method SetDomain Sets the surface domain of this face. (Overrides Surface.SetDomain(Int32, Interval).)
Public method SetMesh Sets a reference to a specified type of mesh for this brep face.
Public method SetUserString Attach a user string (key,value combination) to this geometry. (Inherited from GeometryBase.)
Public method ShortPath Constructs a geodesic between 2 points, used by ShortPath command in Rhino. (Inherited from Surface.)
Public method SpanCount Gets number of smooth nonempty spans in the parameter direction. (Inherited from Surface.)
Public method Split(Int32, Double) Splits (divides) the surface into two parts at the specified parameter (Inherited from Surface.)
Public methodCode example Split(IEnumerable(Curve), Double) Split this face using 3D trimming curves.
Public method ToBrep Converts the surface into a Brep. (Inherited from Surface.)
Public method ToNurbsSurface() Gets a NURBS surface representation of this surface. Default tolerance of 0.0 is used. (Inherited from Surface.)
Public method ToNurbsSurface(Double, Int32) Gets a NURBS surface representation of this surface. (Inherited from Surface.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)
Public method 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.)
Public method Translate(Vector3d) Translates the object along the specified vector. (Inherited from GeometryBase.)
Public method Translate(Double, Double, Double) Translates the object along the specified vector. (Inherited from GeometryBase.)
Public method Transpose() Transposes surface parameterization (swap U and V) (Inherited from Surface.)
Public method Transpose(Boolean) Transposes surface parameterization (swap U and V) (Inherited from Surface.)
Public method Trim Constructs a sub-surface that covers the specified UV trimming domain. (Inherited from Surface.)
Public method TrimAwareIsoCurve Similar to IsoCurve function, except this function pays attention to trims on faces and may return multiple curves.
Public method TrimAwareIsoIntervals Gets intervals where the iso curve exists on a BrepFace (trimmed surface)
Public method 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.)
Public method TryGetCone(Cone, Double) Tests a surface to see if it is a portion of a cone and returns the cone. (Inherited from Surface.)
Public method 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.)
Public method TryGetCylinder(Cylinder, Double) Tests a surface to see if it is a portion of a cylinder and return the cylinder. (Inherited from Surface.)
Public method TryGetPlane(Plane) Tests a surface for planarity and return the plane. (Inherited from Surface.)
Public methodCode example TryGetPlane(Plane, Double) Tests a surface for planarity and return the plane. (Inherited from Surface.)
Public method TryGetSphere(Sphere) Test a surface to see if it is a portion of a sphere and return the sphere. (Inherited from Surface.)
Public method TryGetSphere(Sphere, Double) Test a surface to see if it is a portion of a sphere and return the sphere. (Inherited from Surface.)
Public method 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.)
Public method TryGetTorus(Torus, Double) Tests a surface to see if it is a portion of a torus and returns the torus. (Inherited from Surface.)
Public method UnderlyingSurface Gets the untrimmed surface that is the base of this face.
  Back to Top

Version Information

Supported in: 6.0.16224.21491, 5D58w

See Also

Reference

Rhino.Geometry Namespace

Clone this wiki locally