Data generating apparatus, shoe last producing system and data generating method

A data generating apparatus that generates shoe last data for manufacturing a shoe from measured foot shape data, the data generating apparatus comprising:

• an input configured to receive the foot shape data and additional information;
• a computer configured to compute the shoe last data from the foot shape data received by the input, specify a portion of the shoe last data to be corrected based on the additional information, calculate an amount of correction of the specified portion based on the additional information, and correct the specified portion by the amount of correction to correct the shoe last data, the additional information including selective tightness information selected by a user;
• and
• an output configured to output the shoe last data as computed and corrected by the computer,
• wherein the selective tightness information is selective based on a region of the shoe.