Program editing device of program path for wire electrode and wire electrical discharge machine thereof

A program editing device for editing a machining program in which a machining path along which a wire electrode of a wire electrical discharge machine machines a workpiece is defined,

• wherein the machining program includes a plurality of blocks corresponding to respective multiple partial paths into which the machining path is divided, each of the blocks including path information indicating the corresponding partial path,
• the program editing device, comprising:
• an analyzer configured to analyze the machining program and thereby identify a predetermined shape pattern formed by a series of the multiple partial paths in the machining path;
• an information generator configured to generate shape information corresponding to the identified predetermined shape pattern;
• and
• an editor configured to insert the shape information into the machining program wherein:
• the predetermined shape pattern includes a pseudo-curve shape formed of a series of straight linear paths;
• and
• the shape information corresponding to the pseudo-curve shape includes information indicating a curve shape that approximates to the pseudo-curve shape.