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arclen [-constructionHistory boolean]
arclen is undoable, queryable, and editable.This command returns the arclength of a curve if the history flag is not set (the default). If the history flag is set, a node is created that can produce the arclength, and is connected and its name returned. Having the construction history option on makes this command useful for expressions.
|float||Length in non history mode|
|string||Node name, in history mode|
In query mode, return type is based on queried flag.
|Long name (short name)||Argument types||Properties|
|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.|
arclen curve1; // This command returns a float value that is the length of curve1 in // the current linear units. string $curveInfoNode = `arclen -ch on curve1`; expression -s ("surface1.sx = " + $curveInfoNode + ".arcLength"); // The first command produces a curve info node for curve1 and returns // the name of the curve info node. The second command shows how the // arc length attribute of the curve info node can be used to set up // an expression, ie. it drives one of the scale factors of surface1.