| 摘要 |
<p>PURPOSE:To beautifully express a small step section with no sag by automati cally detecting a small step when the positional relation between an offset recessed point and a protruded point is within a fixed range, giving the angle of a separately specified small step as the angle of the recessed point, and generating a curved surface corresponding to a model surface shape. CONSTITUTION:A recessed point and a protruded point are detected, and a stylus is offset downward in the normal line direction by the radius quantity on the digitized data obtained when a model 2 having a small step smaller than the radius of the stylus 8 of a digitizer 1 is digitized. When the positional relation between the offset recessed point and a protruded point is within a fixed range, the small step is automatically detected, the angle of a separately specified small step is given as the angle of the recessed point, a curved surface corresponding to a model surface shape is generated, and a machining tool is run on this curved surface. The shape of a model 2 including the small step can be correctly expressed.</p> |
