| 摘要 |
In an automatic curve tracing system comprising a detector for performing a round scanning operation along the periphery of an area containing a curve to be traced to provide an information regarding the presence or absence and the position of the curve, means responsive to the information to move the detector in a predetermined direction and over a predetermined distance to trace the curve and means for repeating above described tracing operation, there is provided a discontinuity processing apparatus comprising means to broaden the scanning area of the detector, means to determine the number of informations generated by the detector when it performs the round scanning operation, means responsive to the number of informations corresponding to a discontinuity of the curve and means to broaden the scanning area of the detector when it reaches the discontinuity to judge the presence or absence of another curve to be traced.
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