Line drawing apparatus, line drawing method, and computer-readable recording medium recording line drawing program

摘要

PROBLEM TO BE SOLVED: To add a node to a continuous line through a small number of operations. ;SOLUTION: A base point node specification part 51 specifies as a base point node one of the nodes at both the ends of a connection line to which a node is to be added. Consequently, two end-point nodes which adjoin to the base point node are determined. An added node specification part 52 specifies the position of the added node. A connection node determination part 53 determines a connection node to be connected to the specified added node. In concrete, a comparison decision part 53a draws the perpendicular line passing the base point nose and selects as a connection node the end-point node included in the area containing the added node between the right and left areas divided by the perpendicular line. Lastly, a drawing execution part 54 draws a new connecting line by using the determined added node and connection node. When the added node is specified, the position of a mouse is detected and a virtual connecting line based upon the detected position of the mouse as the position of the added node is displayed.;COPYRIGHT: (C)2001,JPO