Patent ID: 6246417
Filing Date: 2001-06-12
Classification: G06T

Abstract:
A map editing apparatus operable for generating a display image of a selected map and for editing said map, having a map readout means (105) for reading out map data expressing said map from an externally provided database (102), display means (110) for displaying said map on an externally provided display apparatus (111), and input means (104) for specifying elements to be selected in said map and for specifying editing operations which are to be applied to said selected elements, in response to input data and commands supplied from an externally provided input apparatus (101);wherein said map editing apparatus comprises means (109, 107) operable for executing transformation editing operations on selected elements of said map and conformity management means (106) having map conformity means (106a) for monitoring the effects of a transformation editing operation upon existing position relationships in said map, and for automatically modifying said transformation editing operation such as to prevent occurrence of nonconformity of said position relationships due to effects of said transformation editing operation.