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Synopsis

alignSurface [-caching boolean] [-constructionHistory boolean] [-curvatureContinuity boolean] [-curvatureScale1 float] [-curvatureScale2 float] [-directionU boolean] [-joinParameter float] [-name string] [-nodeState int] [-object boolean] [-positionalContinuity boolean] [-positionalContinuityType int] [-replaceOriginal boolean] [-reverse1 boolean] [-reverse2 boolean] [-swap1 boolean] [-swap2 boolean] [-tangentContinuity boolean] [-tangentContinuityType int] [-tangentScale1 float] [-tangentScale2 float] [-twist boolean] [surface] [surface]

alignSurface is undoable, queryable, and editable.

The surface align command is used to align surfaces in maya. The main alignment options are positional, tangent and curvature continuity. Curvature continuity implies tangent continuity. NOTE: this tool is based on Studio's align tool. Positional continuity means the surfaces (move) or the ends of the surfaces (modify) are changed. Tangent continuity means one of the surfaces is modified to be tangent at the points where they meet. Curvature continuity means one of the surfaces is modified to be curvature continuous as well as tangent. The default behaviour, when no surfaces or flags are passed, is to only do positional and tangent continuity on the active list with the end of the first surface and the start of the other surface used for alignment.

Return value

string[] Object name and node name

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

Flags

caching, constructionHistory, curvatureContinuity, curvatureScale1, curvatureScale2, directionU, joinParameter, name, nodeState, object, positionalContinuity, positionalContinuityType, replaceOriginal, reverse1, reverse2, swap1, swap2, tangentContinuity, tangentContinuityType, tangentScale1, tangentScale2, twist
Long name (short name) Argument types Properties
-tangentScale1(-ts1) float createqueryedit
Tangent scale applied to tangent of first surface for tangent continuity.
Default: 1.0
-tangentScale2(-ts2) float createqueryedit
Tangent scale applied to tangent of second surface for tangent continuity.
Default: 1.0
-curvatureScale1(-cs1) float createqueryedit
Curvature scale applied to curvature of first surface for curvature continuity.
Default: 0.0
-curvatureScale2(-cs2) float createqueryedit
Curvature scale applied to curvature of second surface for curvature continuity.
Default: 0.0
-positionalContinuityType( -pct) int createqueryedit
Positional continuity type legal values: 1 - move first surface, 2 - move second surface, 3 - move both surfaces, 4 - modify first surface, 5 - modify second surface, 6 - modify both surfaces
Default: 1
-tangentContinuityType(-tct) int createqueryedit
Tangent continuity type legal values: 1 - do tangent continuity on first surface, 2 - do tangent continuity on second surface
Default: 1
-joinParameter(-jnp) float createqueryedit
Parameter on reference surface where modified surface is to be aligned to.
Default: 123456.0
-twist(-tw) boolean createqueryedit
If true, reverse the second surface in the opposite direction (specified by directionU) before doing align. This will avoid twists in the aligned surfaces. Otherwise, do nothing to the second input surface before aligning. NOTE: setting this attribute to random values will cause unpredictable results and is not supported.
Default: false
-reverse1(-rv1) boolean createqueryedit
If true, reverse the direction (specified by directionU) of the first input surface before doing align. Otherwise, do nothing to the first input surface before aligning. NOTE: setting this attribute to random values will cause unpredictable results and is not supported.
Default: false
-reverse2(-rv2) boolean createqueryedit
If true, reverse the direction (specified by directionU) of the second input surface before doing align. Otherwise, do nothing to the second input surface before aligning. NOTE: setting this attribute to random values will cause unpredictable results and is not supported.
Default: false
-swap1(-sw1) boolean createqueryedit
If true, swap the UV directions of the first input surface before doing align. Otherwise, do nothing to the first input surface before aligning. NOTE: setting this attribute to random values will cause unpredictable results and is not supported.
Default: false
-swap2(-sw2) boolean createqueryedit
If true, swap the UV directions of the second input surface before doing align. Otherwise, do nothing to the second input surface before aligning. NOTE: setting this attribute to random values will cause unpredictable results and is not supported.
Default: false
-positionalContinuity(-pc) boolean createqueryedit
Positional continuity is on if true and off otherwise.
Default: true
-tangentContinuity(-tc) boolean createqueryedit
Tangent continuity is on if true and off otherwise.
Default: true
-curvatureContinuity(-cc) boolean createqueryedit
Curvature continuity is on if true and off otherwise.
Default: false
-directionU(-du) boolean createqueryedit
If true use U direction of surface and V direction otherwise.
Default: true
Advanced flags
-caching(-cch) boolean createqueryedit
Modifies the node caching mode. See the node documentation for more information.
Note: For advanced users only.
-nodeState(-nds) int createqueryedit
Modifies the node state. See the node documentation for more information.
Note: For advanced users only.
Common flags
-name(-n) string create
Name the resulting object
-constructionHistory(-ch) boolean create
Turn the construction history on or off
-object(-o) boolean create
Create the result, or just the dependency node
-replaceOriginal(-rpo) boolean create
Create "in place" (i.e., replace)
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

// Do modify positional continuity on both active surfaces with no history:
 alignSurface -ch off -pc on -pct 6;

// Do positional and tangent continuity, with the second surface
// tangent modified (by default move position continuity is done
// on the first surface):
 alignSurface -tc on -tct 2;