LENGTH MEASURING DEVICE, LENGTH MEASURING METHOD, PROGRAM, AND BODY HEIGHT METER

摘要

A length measuring apparatus (10) for measuring length of a measuring object (2), includes a scale part (11) provided to the measuring object (2), the scale part having two-dimensional codes (50) with different patterns provided alongside at least in a longitudinal direction; a reading unit (12) configured to read the two-dimensional codes (50); an obtaining unit (21) configured to obtain coordinate information from a two-dimensional code (50) which is read; and a conversion unit (22) configured to convert the obtained coordinate information to length information based on a previously generated correspondence between the coordinate information and length information of the measuring object (2).