A data processing method includes: outputting output information, the output information including coordinate system setting information to specify a correspondence between each of one or more coordinate axes of a coordinate system and each of attributes each of which is assigned to each of the one or more coordinate axes, thereby enabling an image generation device including a control unit to acquire the output information and to generate an image including a graph drawn in a coordinate system, which is set in accordance with the correspondence specified by the coordinate system setting information of the acquired output information, based on data on the attribute.