Abstract: The object of the present invention is to assign line break numbers to locations where line breaks have been made in order to separate a series of figures configured by connecting a number of figures into parts in a manner which makes it easy for a user to view a drawing including the series of figures, or a series of figures. In response to a line break operation for separating a series of figures configured by connecting a plurality of figures into parts, line break numbers displayed at line break locations are sorted based on a positional relationship of the line break locations. The series of figures with the sorted line break numbers assigned to the line break locations is displayed after performing the line break operation. The line numbers are therefore assigned in a consecutive manner for each series of figures.

Abstract: An acquisition color specifying section works within a computer system to process graded color. The number of individual gradation levels which may be acquired in color gradation or density gradation is limited by the computer system. To address this limitation, the acquisition color specifying section specifies graded colors to be acquired without modification or substitution in a case where the number of available colors of the color table of a system is equal to or larger than the number of graded colors to be originally acquired. In a case where the number of available colors of the color table is less than the number of graded colors to be originally acquired, a blank is present in the color table. In this case, the acquisition color specifying section specifies graded colors of a number corresponding to the blank of the color table such that the graded colors will be uniformly distributed in a gradation range to be acquired.