TREE STRUCTURE DISPLAYING/EDITING DEVICE

PROBLEM TO BE SOLVED: To provide a tree structure displaying/editing device which can easily move the object of tree structure and can reduce the burden of an operator. SOLUTION: The tree structure displaying/editing device 1a has a storage means 9 for storing tree structure information, an operation means 7 for separating the object on the screen of a display means 8 and inputting operation information meaning movement and connection, a coordinate calculating means 10 for calculating a coordinate on the picture, which corresponds to operation information, a retrieving means 11 for retrieving one other object which can be the master of the object during movement, a tree structure editing means 12 for updating tree structure information stored in the storage means 9 and editing new tree structure information related to the detachment and movement of the respective objects and connection to the other object and a display driving means 13 for generating display pattern information and supplying it for display. Thus, the moving object can be connected to the target object while always viewing it with few operations.