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Abstract: Three measured data supplement methods are presented for
reverse engineering of sculpture surface with unknown regions (such as
trimmed region or unreachable region).They are ① mending the unknown
region of the practical part manually with some solid material before
measuring, ②mending the unknown region of the measured data-cloud by
designed surface according its surrounding data, and ③mending the gap
with triangular Bézier surface or fitting surface automatically. As well
as, a NURBS surface reconstruction method is presented based on the
initial representation of triangular Bézier surface. Finally, an example
of reversing engineering of a motorcycle part is given to verify the
efficiency of the presented methods.
Key words: Reverse engineering Data supplement Trimmed surface
Sculpture surface
CLC No: TP391
TH12
教育部博士点专项基金资助项目(98033532). Received 20010426, received in revised form
20011118
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