Mesh Methods 
The Mesh type exposes the following members.
Name  Description  

Append 
Appends a copy of another mesh to this one and updates indices of appended mesh parts.
 
ClearTextureData 
Remove all texture coordinate information from this mesh.
 
ClosestMeshPoint 
Gets the point on the mesh that is closest to a given test point. Similar to the
ClosestPoint function except this returns a MeshPoint class which includes
extra information beyond just the location of the closest point.
 
ClosestPoint(Point3d) 
Gets the point on the mesh that is closest to a given test point.
 
ClosestPoint(Point3d, Point3d, Double) 
Gets the point on the mesh that is closest to a given test point.
 
ClosestPoint(Point3d, Point3d, Vector3d, Double) 
Gets the point on the mesh that is closest to a given test point.
 
CollapseFacesByArea 
Collapses multiple mesh faces, with areas less than LessThanArea and greater than GreaterThanArea,
based on the principles found in Stan Melax's mesh reduction PDF,
see http://pomax.nihongoresources.com/downloads/PolygonReduction.pdf
 
CollapseFacesByByAspectRatio 
Collapses a multiple mesh faces, determined by face aspect ratio, based on criteria found in Stan Melax's polygon reduction,
see http://pomax.nihongoresources.com/downloads/PolygonReduction.pdf
 
CollapseFacesByEdgeLength 
Collapses multiple mesh faces, with greater/less than edge length, based on the principles
found in Stan Melax's mesh reduction PDF,
see http://pomax.nihongoresources.com/downloads/PolygonReduction.pdf
 
ColorAt(MeshPoint) 
Evaluate a mesh color at a set of barycentric coordinates.
 
ColorAt(Int32, Double, Double, Double, Double) 
Evaluate a mesh normal at a set of barycentric coordinates. Barycentric coordinates must
be assigned in accordance with the rules as defined by MeshPoint.T.
 
Compact 
Removes any unreferenced objects from arrays, reindexes as needed
and shrinks arrays to minimum required size.
 
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 mesh values into this mesh from another mesh.
 
CreateBooleanDifference 
Computes the solid difference of two sets of Meshes.
 
CreateBooleanIntersection 
Computes the solid intersection of two sets of meshes.
 
CreateBooleanSplit 
Splits a set of meshes with another set.
 
CreateBooleanUnion 
Computes the solid union of a set of meshes.
 
CreateContourCurves(Mesh, Plane) 
Constructs contour curves for a mesh, sectioned at a plane.
 
CreateContourCurves(Mesh, Point3d, Point3d, Double) 
Constructs contour curves for a mesh, sectioned along a linear axis.
 
CreateFromBox(BoundingBox, Int32, Int32, Int32) 
Constructs new mesh that matches a bounding box.
 
CreateFromBox(Box, Int32, Int32, Int32) 
Constructs new mesh that matches an aligned box.
 
CreateFromBox(IEnumerablePoint3d, Int32, Int32, Int32) 
Constructs new mesh from 8 corner points.
 
CreateFromBrep(Brep) 
Constructs a mesh from a brep.
 
CreateFromBrep(Brep, MeshingParameters) 
Constructs a mesh from a brep.
 
CreateFromClosedPolyline 
Attempts to create a Mesh that is a triangulation of a closed polyline
 
CreateFromCone  Constructs a mesh cone  
CreateFromCylinder  Constructs a mesh cylinder  
CreateFromPlanarBoundary 
Attempts to construct a mesh from a closed planar curve.
 
CreateFromPlane 
Constructs a planar mesh grid.
 
CreateFromSphere 
Constructs a mesh sphere.
 
CreatePartitions 
In ancient times (or modern smartphone times), some rendering engines
were only able to process small batches of triangles and the
CreatePartitions() function was provided to partition the mesh into
subsets of vertices and faces that those rendering engines could handle.
 
Dispose 
Actively reclaims unmanaged resources that this instance uses.
(Inherited from CommonObject.)  
Dispose(Boolean) 
For derived class implementers.
(Inherited from CommonObject.)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.  
Duplicate 
Constructs a copy of this mesh.
This is the same as DuplicateMesh.
(Overrides GeometryBaseDuplicate.)  
DuplicateMesh  Constructs a copy of this mesh.
This is the same as Duplicate.
 
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.)  
Equals  Determines whether the specified object is equal to the current object. (Inherited from Object.)  
EvaluateMeshGeometry 
If the mesh has SurfaceParameters, the surface is evaluated at
these parameters and the mesh geometry is updated.
 
ExplodeAtUnweldedEdges 
Explode the mesh into submeshes where a submesh is a collection of faces that are contained
within a closed loop of "unwelded" edges. Unwelded edges are edges where the faces that share
the edge have unique mesh vertexes (not mesh topology vertexes) at both ends of the edge.
 
Finalize 
Passively reclaims unmanaged resources when the class user did not explicitly call Dispose().
(Inherited from CommonObject.)  
Flip  Reverses the direction of the mesh.  
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.)  
GetCachedTextureCoordinates 
Call this method to get cached texture coordinates for a texture
mapping with the specified Id.
 
GetHashCode  Serves as the default hash function. (Inherited from Object.)  
GetNakedEdgePointStatus 
Returns an array of bool values equal in length to the number of vertices in this
mesh. Each value corresponds to a mesh vertex and is set to true if the vertex is
not completely surrounded by faces.
 
GetNakedEdges 
Returns all edges of a mesh that are considered "naked" in the
sense that the edge only has one face.
 
GetObjectData 
Populates a System.Runtime.Serialization.SerializationInfo with the data needed to serialize the target object.
(Inherited from CommonObject.)  
GetOutlines(Plane) 
Constructs the outlines of a mesh projected against a plane.
 
GetOutlines(RhinoViewport) 
Constructs the outlines of a mesh. The projection information in the
viewport is used to determine how the outlines are projected.
 
GetPartition 
Retrieves a partition. See CreatePartitions(Int32, Int32) for details.
 
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.)  
IsManifold 
Gets a value indicating whether or not the mesh is manifold.
A manifold mesh does not have any edge that borders more than two faces.
 
IsPointInside 
Determines if a point is inside a solid mesh.
 
IsValidWithLog 
Determines if an object is valid. Also provides a report on errors if this
object happens not to be valid.
(Inherited from CommonObject.)  
MakeDeformable 
If possible, converts the object into a form that can be accurately modified
with "squishy" transformations like projections, shears, an nonuniform scaling.
(Inherited from GeometryBase.)  
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 
For derived classes implementers.
(Inherited from CommonObject.)Defines the necessary implementation to free the instance from being const.  
NormalAt(MeshPoint) 
Evaluate a mesh normal at a set of barycentric coordinates.
 
NormalAt(Int32, Double, Double, Double, Double) 
Evaluate a mesh normal at a set of barycentric coordinates. Barycentric coordinates must
be assigned in accordance with the rules as defined by MeshPoint.T.
 
Offset(Double) 
Makes a new mesh with vertices offset a distance in the opposite direction of the existing vertex normals.
Same as Mesh.Offset(distance, false)
 
Offset(Double, Boolean) 
Makes a new mesh with vertices offset a distance in the opposite direction of the existing vertex normals.
Optionally, based on the value of solidify, adds the input mesh and a ribbon of faces along any naked edges.
If solidify is false it acts exactly as the Offset(distance) function.
 
OnSwitchToNonConst 
Performs some memory cleanup if necessary
(Overrides GeometryBaseOnSwitchToNonConst.)  
PointAt(MeshPoint) 
Evaluate a mesh at a set of barycentric coordinates.
 
PointAt(Int32, Double, Double, Double, Double) 
Evaluates a mesh at a set of barycentric coordinates. Barycentric coordinates must
be assigned in accordance with the rules as defined by MeshPoint.T.
 
PullPointsToMesh 
Pulls a collection of points to a mesh.
 
Reduce 
Reduce polygon count
 
Rotate 
Rotates the object about the specified axis. A positive rotation
angle results in a counterclockwise 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.)  
SetCachedTextureCoordinates 
Set cached texture coordinates using the specified mapping.
 
SetUserString 
Attach a user string (key,value combination) to this geometry.
(Inherited from GeometryBase.)  
SolidOrientation 
Determines orientation of a "solid" mesh.
 
Split(Mesh) 
Split a mesh with another mesh.
 
Split(IEnumerableMesh) 
Split a mesh with a collection of meshes.
 
Split(Plane) 
Split a mesh by an infinite plane.
 
SplitDisjointPieces 
Splits up the mesh into its unconnected pieces.
 
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.)  
UnifyNormals 
Attempts to fix inconsistencies in the directions of meshfaces for a mesh. This function
does not modify the vertex normals, but rather rearranges the mesh face winding and face
normals to make them all consistent. You may want to call Mesh.Normals.ComputeNormals()
to recompute vertex normals after calling this functions.
 
Unweld 
Makes sure that faces sharing an edge and having a difference of normal greater
than or equal to angleToleranceRadians have unique vertexes along that edge,
adding vertices if necessary.
 
Weld 
Makes sure that faces sharing an edge and having a difference of normal greater
than or equal to angleToleranceRadians share vertexes along that edge, vertex normals
are averaged.
