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Mesh Methods

The Mesh type exposes the following members.

Methods
  NameDescription
Public methodCode exampleAppend
Appends a copy of another mesh to this one and updates indices of appended mesh parts.
Public methodClearTextureData
Remove all texture coordinate information from this mesh.
Public methodClosestMeshPoint
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.
Public methodClosestPoint(Point3d)
Gets the point on the mesh that is closest to a given test point.
Public methodClosestPoint(Point3d, Point3d, Double)
Gets the point on the mesh that is closest to a given test point.
Public methodClosestPoint(Point3d, Point3d, Vector3d, Double)
Gets the point on the mesh that is closest to a given test point.
Public methodCollapseFacesByArea
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
Public methodCollapseFacesByByAspectRatio
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
Public methodCollapseFacesByEdgeLength
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
Public methodColorAt(MeshPoint)
Evaluate a mesh color at a set of barycentric coordinates.
Public methodColorAt(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.
Public methodCode exampleCompact
Removes any unreferenced objects from arrays, reindexes as needed and shrinks arrays to minimum required size.
Public methodComponentIndex
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 methodConstructConstObject
Assigns a parent object and a subobject index to this.
(Inherited from CommonObject.)
Public methodCopyFrom
Copies mesh values into this mesh from another mesh.
Public methodStatic memberCreateBooleanDifference
Computes the solid difference of two sets of Meshes.
Public methodStatic memberCreateBooleanIntersection
Computes the solid intersection of two sets of meshes.
Public methodStatic memberCreateBooleanSplit
Splits a set of meshes with another set.
Public methodStatic memberCreateBooleanUnion
Computes the solid union of a set of meshes.
Public methodStatic memberCreateContourCurves(Mesh, Plane)
Constructs contour curves for a mesh, sectioned at a plane.
Public methodStatic memberCode exampleCreateContourCurves(Mesh, Point3d, Point3d, Double)
Constructs contour curves for a mesh, sectioned along a linear axis.
Public methodStatic memberCreateFromBox(BoundingBox, Int32, Int32, Int32)
Constructs new mesh that matches a bounding box.
Public methodStatic memberCreateFromBox(Box, Int32, Int32, Int32)
Constructs new mesh that matches an aligned box.
Public methodStatic memberCreateFromBox(IEnumerablePoint3d, Int32, Int32, Int32)
Constructs new mesh from 8 corner points.
Public methodStatic memberCode exampleCreateFromBrep(Brep)
Constructs a mesh from a brep.
Public methodStatic memberCode exampleCreateFromBrep(Brep, MeshingParameters)
Constructs a mesh from a brep.
Public methodStatic memberCreateFromClosedPolyline
Attempts to create a Mesh that is a triangulation of a closed polyline
Public methodStatic memberCreateFromCone
Constructs a mesh cone
Public methodStatic memberCreateFromCylinder
Constructs a mesh cylinder
Public methodStatic memberCreateFromPlanarBoundary
Attempts to construct a mesh from a closed planar curve.
Public methodStatic memberCreateFromPlane
Constructs a planar mesh grid.
Public methodStatic memberCreateFromSphere
Constructs a mesh sphere.
Public methodCreatePartitions
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.
Public methodDispose
Actively reclaims unmanaged resources that this instance uses.
(Inherited from CommonObject.)
Protected methodDispose(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 methodDuplicate (Overrides GeometryBaseDuplicate.)
Public methodDuplicateMesh
Constructs a copy of this mesh. This is the same as Duplicate.
Public methodDuplicateShallow
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 methodEnsurePrivateCopy
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 methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Public methodEvaluateMeshGeometry
If the mesh has SurfaceParameters, the surface is evaluated at these parameters and the mesh geometry is updated.
Public methodExplodeAtUnweldedEdges
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.
Protected methodFinalize
Passively reclaims unmanaged resources when the class user did not explicitly call Dispose().
(Inherited from CommonObject.)
Public methodFlip
Reverses the direction of the mesh.
Public methodCode exampleGetBoundingBox(Boolean)
Boundingbox solver. Gets the world axis aligned boundingbox for the geometry.
(Inherited from GeometryBase.)
Public methodCode exampleGetBoundingBox(Plane)
Aligned Boundingbox solver. Gets the plane aligned boundingbox.
(Inherited from GeometryBase.)
Public methodGetBoundingBox(Transform)
Aligned Boundingbox solver. Gets the world axis aligned boundingbox for the transformed geometry.
(Inherited from GeometryBase.)
Public methodGetBoundingBox(Plane, Box)
Aligned Boundingbox solver. Gets the plane aligned boundingbox.
(Inherited from GeometryBase.)
Public methodGetCachedTextureCoordinates
Call this method to get cached texture coordinates for a texture mapping with the specified Id.
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetNakedEdgePointStatus
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.
Public methodCode exampleGetNakedEdges
Returns all edges of a mesh that are considered "naked" in the sense that the edge only has one face.
Public methodGetObjectData
Populates a System.Runtime.Serialization.SerializationInfo with the data needed to serialize the target object.
(Inherited from CommonObject.)
Public methodGetOutlines(Plane)
Constructs the outlines of a mesh projected against a plane.
Public methodGetOutlines(RhinoViewport)
Constructs the outlines of a mesh. The projection information in the viewport is used to determine how the outlines are projected.
Public methodGetPartition
Retrieves a partition. See CreatePartitions(Int32, Int32) for details.
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodGetUserString
Gets user string from this geometry.
(Inherited from GeometryBase.)
Public methodGetUserStrings
Gets a copy of all (user key string, user value string) pairs attached to this geometry.
(Inherited from GeometryBase.)
Public methodIsManifold
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.
Public methodIsPointInside
Determines if a point is inside a solid mesh.
Public methodIsValidWithLog
Determines if an object is valid. Also provides a report on errors if this object happens not to be valid.
(Inherited from CommonObject.)
Public methodMakeDeformable
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 methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodMemoryEstimate
Computes an estimate of the number of bytes that this object is using in memory.
(Inherited from GeometryBase.)
Protected methodNonConstOperation
For derived classes implementers.

Defines the necessary implementation to free the instance from being const.

(Inherited from CommonObject.)
Public methodNormalAt(MeshPoint)
Evaluate a mesh normal at a set of barycentric coordinates.
Public methodNormalAt(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.
Public methodOffset(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)
Public methodOffset(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.
Protected methodOnSwitchToNonConst
Performs some memory cleanup if necessary
(Overrides GeometryBaseOnSwitchToNonConst.)
Public methodPointAt(MeshPoint)
Evaluate a mesh at a set of barycentric coordinates.
Public methodPointAt(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.
Public methodPullPointsToMesh
Pulls a collection of points to a mesh.
Public methodReduce
Reduce polygon count
Public methodRotate
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 methodScale
Scales the object by the specified factor. The scale is centered at the origin.
(Inherited from GeometryBase.)
Public methodSetCachedTextureCoordinates
Set cached texture coordinates using the specified mapping.
Public methodSetUserString
Attach a user string (key,value combination) to this geometry.
(Inherited from GeometryBase.)
Public methodSolidOrientation
Determines orientation of a "solid" mesh.
Public methodSplit(Mesh)
Split a mesh with another mesh.
Public methodSplit(IEnumerableMesh)
Split a mesh with a collection of meshes.
Public methodSplit(Plane)
Split a mesh by an infinite plane.
Public methodSplitDisjointPieces
Splits up the mesh into its unconnected pieces.
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodTransform
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 methodTranslate(Vector3d)
Translates the object along the specified vector.
(Inherited from GeometryBase.)
Public methodTranslate(Double, Double, Double)
Translates the object along the specified vector.
(Inherited from GeometryBase.)
Public methodUnifyNormals
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.
Public methodUnweld
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.
Public methodWeld
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.
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