Numerical control information generating apparatus

A numerical control information generating apparatus comprising:

• input means for generating data denoting a before-machining shape and an after-machining shape of a workpiece and data denoting a parameter set selection command in response to input commands of an operator;
• feature extraction means for determining and generating data denoting plural predetermined features of the workpiece based on said data denoting the before-machining shape and after-machining shape of the workpiece generated by said input means;
• parameter-set storing means for storing in advance a plurality of different parameters sets each including plural parameters respectively provided in correspondence to said plural predetermined features determined by said feature extraction means;
• parameter-set selection means for selecting one of said plurality of parameter sets stored in said parameter-set storing means in accordance with the data denoting said parameter set selection command generated by said input means;
• feature discriminating means for comparing each plural predetermined feature of the workpiece determined by said feature extraction means with a corresponding one of said plural parameters of the parameter set selected by said parameter-set discriminating means and for generating corresponding comparison results data;
• machining method determining means for determining a machining method to be used to machine the workpiece in accordance with the comparison results data generated by said feature extraction means;
• and,
• numerical control information generating means for generating numerical control information in accordance with said machining method determined by said machining method determining means.