Information processing device, machining program generation method, and program

Provided are an information processing device, a machining program generation method, and a program suitable for inputting information for generating a machining program, which is a machining program for a grinding machine, using CAD data specifying a visual graph. The information processing device (5) generates a machining program for the grinding machine (1). In an input assistance unit (17), an analysis processing unit (29) specifies a machining trajectory pattern group from a start pattern to an end pattern continuously from among pattern groups specified by CAD data stored in a CAD data storage unit (11). The expansion processing unit (31) generates section information using an end point on the end pattern side in the machining path as section end information in each pattern included in the machining path pattern group. A machining program generation unit (43) generates a machining program using the section information generated by the expansion processing unit (31). 提供适于使用确定可视图形的CAD数据来输入用于生成加工程序的信息的信息处理