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smoothTangentSurface [-caching boolean] [-constructionHistory boolean]
[-direction int] [-name string] [-nodeState int] [-object boolean] [-parameter float] [-replaceOriginal boolean]
[-smoothness int]
surface
smoothTangentSurface is undoable, queryable, and editable.
The smoothTangentSurface command smooths the surface along an
isoparm at each parameter value. The name of the surface is
returned and if history is on, the name of the resulting dependency
node is also returned. This command only applies to parameter
values with a multiple knot value. (If the given parameter value
has no multiple knot associated with it, then the dependency node
is created but the surface doesn't change.)
When would you use this? If you have a surface consisting of a
number of Bezier patches or any isoparms with more than a single
knot multiplicity, you could get into a situation where a tangent
break occurs. So, it only makes sense to do this operation on the
knot isoparms, and not anywhere in between, because the surface is
already smooth everywhere in between.
If you have a cubic or higher degree surface, asking for the
maximal smoothness will give you tangent, curvature, etc. up to the
degree-1 continuity. Asking for tangent will just give you tangent
continuity.
It should be mentioned that this is "C", not "G" continuity we're
talking about, so technically, you can still see visual tangent
breaks if the surface is degenerate. Note: A single
smoothTangentSurface command cannot smooth in both directions at
once; you must use two separate commands to do this.
| string[] |
Object name and node name |
In query mode, return type is based on queried flag.
caching, constructionHistory, direction, name,
nodeState, object, parameter,
replaceOriginal, smoothness
| Long name (short name) |
Argument types |
Properties |
-parameter(-p) |
float |
    |
|
Parameter value(s) where knots are added
Default: 0.0 |
|
-direction(-d) |
int |
|
|
Direction in which to smooth knot: 0 - V direction, 1 - U
direction
Default: 1 |
|
-smoothness(-s) |
int |
|
|
Smoothness to get: 0 - Tangent, 1 - Maximum (based on the
degree)
Default: 1 |
|
| Advanced flags |
-caching(-cch) |
boolean |
|
|
Modifies the node caching mode. See the node documentation for
more information.
Note: For advanced users only. |
|
-nodeState(-nds) |
int |
|
|
Modifies the node state. See the node documentation for more
information.
Note: For advanced users only. |
|
| Common flags |
-name(-n) |
string |
|
|
Name the resulting object |
|
-constructionHistory(-ch) |
boolean |
|
|
Turn the construction history on or off |
|
-object(-o) |
boolean |
|
|
Create the result, or just the dependency node |
|
-replaceOriginal(-rpo) |
boolean |
|
|
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. |
smoothTangentSurface -ch on -p 0.3 -d 0 surface1;
smoothTangentSurface -ch on surface1.v[0.3];
// Smoothes surface1 along parameter value v = 0.3. When the
// isoparm is specified, the direction and parameter value is
// implied and the "-p" and "-d" flags can be omitted.
smoothTangentSurface -ch on -p 0.3 -p 0.5 -p 0.8 -d 0 surface1;
// Smoothes along parameter values v = 0.3, 0.5 and 0.8.