Revit 2026 API
Face Class |
A bounded face of a 3d solid or open shell.
Inheritance HierarchyNamespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 26.0.4.0 (26.0.4.0)
Syntax
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. |
RemarksFaces are defined by surfaces (Surface) bounded by edge loops. The surfaces provide
natural UV parameterization to the faces.
See Also
Reference
Inheritance Hierarchy