A bounded face of a 3d solid or open shell.
Inheritance Hierarchy
System.ObjectAutodesk.Revit.DB.APIObject
Autodesk.Revit.DB.GeometryObject
Autodesk.Revit.DB.Face
More
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.1.0.0 (26.1.0.34)
Syntax
C#
public class Face : GeometryObject
The Face type exposes the following members.
Properties
| Name | Description | |
|---|---|---|
 | Area | The area of this face. |
| EdgeLoops | A collection of edge loops. Each edge loop represents one of the closed boundaries of the face. |
 | GraphicsStyleId | The ElementId of the GeometryObject's GraphicsStyle (Inherited from GeometryObject) |
| HasRegions | Identifies if the face contains regions (which can be created, for example, by the Split Face command). |
| Id | A unique integer identifying the GeometryObject in its associated non view-specific GeometryElement. (Inherited from GeometryObject) |
| IsCyclic | Indicates whether the underlying surface is periodic in the specified parametric direction. |
| IsElementGeometry | Indicates whether this geometry is obtained directly from an Element. (Inherited from GeometryObject) |
| IsReadOnly | Identifies if the object is read-only or modifiable. (Inherited from APIObject) |
| IsTwoSided | Determines if a face is two-sided (degenerate). |
| MaterialElementId | The element ID of the material from which this face is composed. |
| OrientationMatchesSurfaceOrientation | Returns true if this face's orientation matches the orientation of the face's surface, false if they have opposite orientations. |
| Period | The period of the underlying surface in the specified parametric direction. |
| Reference | Returns a stable reference to the face. |
| Visibility | The visibility. (Inherited from GeometryObject) |
Methods
| Name | Description | |
|---|---|---|
 | ComputeDerivatives | Returns the first partial derivatives of the underlying surface at the specified point. |
| ComputeNormal | Returns the normal vector for the face at the given point. |
| ComputeSecondDerivatives | Returns the second partial derivatives of the face at the specified point. |
| Dispose | Causes the object to release immediately any resources it may be utilizing. (Inherited from APIObject) |
| Equals | Determines whether the specified Object is equal to the current Object. (Inherited from GeometryObject) |
| Evaluate | Evaluates and returns the XYZ coordinates of a point at the indicated UV parameterization of the face. |
| GetBoundingBox | Returns the UV bounding box of the face. |
| GetEdgesAsCurveLoops | Returns a list of closed curve loops that correspond to the edge loops of the face. Curves in each curve loop correspond to individual edges. |
| GetHashCode |
Gets the integer value of the geometry object as hash code
(Inherited from GeometryObject) |
| GetRegions | Gets the face regions (created, for example, by the Split Face command) of the face. |
| GetSurface | Returns a copy of this face's surface. |
| GetType | Gets the Type of the current instance. (Inherited from Object) |
| Intersect(Curve) | Calculates the intersection of the specified curve with this face. |
| Intersect(Face) | Calculates the intersection of the specified face with this face and returns the intersection results. |
| Intersect(Curve, IntersectionResultArray%) | Calculates the intersection of the specified curve with this face and returns the intersection results. |
| Intersect(Face, Curve%) | Calculates the intersection of the specified face with this face and returns the intersection results. |
| IsInside(UV) | Indicates whether the specified point is within this face. |
| IsInside(UV, IntersectionResult%) | Indicates whether the specified point is within this face and outputs additional information about the point location. |
| Project | Projects the specified point on the face. |
| ToString | Returns a string that represents the current object. (Inherited from Object) |
| Triangulate() | Returns a triangular mesh approximation to the face. |
| Triangulate(Double) | Returns a triangular mesh approximation to the face. |
Remarks
Faces are defined by surfaces (Surface) bounded by edge loops. The surfaces provide natural UV parameterization to the faces.See Also
Reference
Inheritance Hierarchy
System.ObjectAutodesk.Revit.DB.APIObject
Autodesk.Revit.DB.GeometryObject
Autodesk.Revit.DB.Face
Autodesk.Revit.DB.ConicalFace
Autodesk.Revit.DB.CylindricalFace
Autodesk.Revit.DB.HermiteFace
Autodesk.Revit.DB.PlanarFace
Autodesk.Revit.DB.RevolvedFace
Autodesk.Revit.DB.RuledFace