polyMergeVertex

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Synopsis

polyMergeVertex [-alwaysMergeTwoVertices boolean] [-caching boolean] [-constructionHistory boolean] [-distance linear] [-mergeToComponents string] [-name string] [-nodeState int] [-texture boolean]

polyMergeVertex is undoable, queryable, and editable.

First, perform comparison of pairs of selected vertices. Pairs that lie within given distance of one another are merged, along with the edge between them.

Second, any selected vertices which share an edge are merged if the distance between them is within the specified distance.

Unlike Merge Edges, Merge Vertices will perform the merge even if the edges adjoining the vertices do not have matching orientation (i.e. normals of adjacent faces do not point in the same direction). As this restriction is not enforced while merging vertices, resulting geometry can be non-manifold.

If alwaysMergeTwoVertices is set and there are only two vertices, tolerance is ignored and the vertices will be merged.

Resulting mesh may have extra vertices or edges to ensure geometry is valid.

Return value

In query mode, return type is based on queried flag.

Related

Flags

Long name (short name)	Argument types	Properties
-alwaysMergeTwoVertices(-am)	boolean
This flag specifies whether to always merge if only two vertices are selected regardless of distance. C: Default is false. Q: When queried, this flag returns a boolean.
-distance(-d)	linear
This flag specifies the distance within which vertices will be merged. C: Default is 0.0 (i.e. vertices are coincident). Q: When queried, this flag returns a double.
-mergeToComponents(-mtc)	string
Optionally defines the position to merge all of the vertices to. If set, the distance flag will be ignored, and instead the center point of the set components will be calculated and all vertices will be merged to that location. C: Default is empty string. Q: When queried, this flag returns a string.
-texture(-tx)	boolean
This flag specifies whether the texture is sewn in addition to the 3d edge C: Default is true. Q: When queried, this flag returns a boolean.
Common flags
-caching(-cch)	boolean
Toggle caching for all attributes so that no recomputation is needed.
-constructionHistory(-ch)	boolean
Turn the construction history on or off (where applicable). If construction history is on then the corresponding node will be inserted into the history chain for the mesh. If construction history is off then the operation will be performed directly on the object. Note: If the object already has construction history then this flag is ignored and the node will always be inserted into the history chain.
-name(-n)	string
Give a name to the resulting node.
-nodeState(-nds)	int
Defines how to evaluate the node. 0: Normal 1: PassThrough 2: Blocking 3: Internally disabled. Will return to Normal state when enabled 4: Internally disabled. Will return to PassThrough state when enabled 5: Internally disabled. Will return to Blocking state when enabled

Flag can appear in Create mode of command	Flag can appear in Edit mode of command
Flag can appear in Query mode of command	Flag can be used more than once in a command.

MEL examples

 polyPlane -sx 5 -sy 5 -n plg1;
 polyPlane -sx 5 -sy 5 -n plg2;
 move -ws 0.55 0 -1.25 plg1; move -ws -0.55 0 -1.25 plg2;
 polyPlane -sx 5 -sy 5 -n plg3;
 polyPlane -sx 5 -sy 5 -n plg4;
 polyPlane -sx 5 -sy 5 -n plg5;
 move -ws 0.55 0 1.25 plg4; move -ws -0.55 0 1.25 plg5;

 // First method:
   polyUnite plg1Shape plg2Shape;
   select -r polySurface1.vtx[6] polySurface1.vtx[12]
       polySurface1.vtx[18] polySurface1.vtx[24]
       polySurface1.vtx[47] polySurface1.vtx[53]
       polySurface1.vtx[59] polySurface1.vtx[65];
   polyMergeVertex -d 0.15;

   // <i>Second method</i>:
   polyMergeVertex -d 0.25 plg3.vtx[24] plg3.vtx[30:31]
       plg3.vtx[8:10] plg3.vtx[14:16]
       plg3.vtx[20:22];

// To create non-manifold geometry:
   polyUnite plg4Shape plg5Shape;
   select -r polySurface2.vtx[0] polySurface2.vtx[6]
       polySurface2.vtx[12] polySurface2.vtx[18]
       polySurface2.vtx[24] polySurface2.vtx[30]
       polySurface2.vtx[41] polySurface2.vtx[47]
       polySurface2.vtx[53] polySurface2.vtx[59]
       polySurface2.vtx[65] polySurface2.vtx[71];
   polyMergeVertex -d 0.25;
 // Note that there is only one vertex at this merged point and the
 // resulting polygonal object is non-manifold;

	// Merge some verts to the center of some edges
	select -all; delete;
	polyPlane -w 10 -h 10 -sx 10 -sy 10 -ax 0 1 0 -cuv 2 -ch 1;
	select -r pPlane1.vtx[8] pPlane1.vtx[12] ;
	polyMergeVertex -mergeToComponents "pPlane1.e[183] pPlane1.e[162] pPlane1.e[166] pPlane1.e[187]" -d 0.0001 -am 0 -ch 1;