<p>Provided is a 2-dimensional drawing generation program which causes a computer to generate a 2-dimensional drawing. The 2-dimensional drawing generation program causes the computer to execute: a conversion step for converting a 3-dimensional model into a 2-dimensional drawing formed by a plurality of lines having predetermined attributes and converting a predetermined line in the 3-dimensional model into a line having a first attribute; a modification step for modifying the line having a specified first attribute into a line not having the first attribute in the 2-dimensional drawing obtained by the conversion step when any one of the lines having the first attribute is specified; and a deletion step for deleting the line having the first attribute from the 2-dimensional drawing obtained by the modification step.</p>
