Path display apparatus considering correction data

A path display apparatus that displays a path of a tip point of a tool of a machine tool that controls the position and posture of the tool by a plurality of drive axes, the path display apparatus comprising:

• a first position command acquiring unit that acquires first position command, generated by a numerical control apparatus, for a plurality of motors that drive the plurality of drive axes, respectively;
• a first position feedback acquiring unit that acquires first position feedback of each of the plurality of motors, from a plurality of position detectors that detect the respective positions of the plurality of motors every predetermined control cycle;
• a correction data acquiring unit that acquires correction data generated for each of the plurality of motors;
• a second position command calculating unit that subtracts the correction data from the first position command to calculate a second position command;
• a second position feedback calculating unit that subtracts the correction data from the first position feedback to calculate second position feedback;
• a command path display unit that displays a command path of the tip point of the tool, based on the second position command calculated by the second position command calculating unit;
• and
• a feedback path display unit that displays a feedback path of the tip point of the tool, based on the second position feedback calculated by the second position feedback calculating unit.