GEOGRAPHIC INFORMATION REDING APPARATUS AND METHOD ENCRYPTED OF COMPRESSING VECTOR MAP DATA FOR GEOGRAPHIC INFORMATION

摘要

PURPOSE: A geographic information reading device and a vector map data encoding method of a geographic information system are provided to encode location and direction information of vector map data in a process compressing massive geographic information vector map data, thereby preventing read or storage of an unauthorized accessor for geographic information. CONSTITUTION: A map load unit(120) loads vector map data in a database of a GIS(Geographic Information System). An extraction unit(130) extracts a layer of a polyline and polygon attribute from the vector map data. A setting unit(140) sets a minimal coding attribute in the layer. A separate unit(150) comprises an integer and decimal part block and a first password setting unit. A arrangement unit(180) comprises a second password setting unit and rearranges a parameter. [Reference numerals] (120) Map load unit; (130) Extraction unit; (140) Setting unit; (150) Separate unit; (160) Integer part block; (165) First password setting unit; (170) Decimal part block; (180) Arrangement unit; (185) Second password setting unit