Gets a box that encloses the curve with additional tolerances.
Role: Returns a box (presently a rectangular parallelepiped parallel
to parameter-space axes) that completely contains the curve, with an additional
allowance of the given tolerance all around. The box will not be the smallest
possible, but will be a compromise between a tight fit and fast evaluation.
Effect: Read-only
Parameters:
cur
given curve.
fitol
given tolerance.
This object is included in the file: sp2crtn.hxx
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