The .1:1 Million To 1:5 Million Land-use Vegetation Elements Polygons Comprehensive

At present coordinated map generalization are widely adopted in map generalize productions. Coordinated system is defined that abstract thoughts such as numerical compute and logic reasoning are handled by computers which so far deal with all ripe generalize technologies, and visualize thoughts such as which objects need generalize and setting special parameters are adopted by human beings in the process of map generalization. The whole work will finished both by human and computers.There are still many problems in the process of producing land-use data in coordinated map generalization. It shows that the discordant of the basis generalize theories and the disunion of standard in producing teams is caused the differences in the quality of map results which bring about complexity of survey work. Especially in the generalization of land-use spots which distribute continually, have complex contour structure and uncertainty generalize roles, these spots are generalized in artificial process with restraint and standard but have not union regular in the computer automatic process. Besides, it cannot be resolved only by fixing arithmetic and should be getting the generalization of artificial logic thoughts systematically. By simulating it, making the logic thoughts mechanical and automatic, it can control the unity and rationality of generalization. How to control the direction and process of the generalization at some extent and to make rational targets is this thesis background in order to make the computer-generalize map accord with the real survey or artificial experts generalization. The purpose is that by researching methods of generalize theory, establishing rules and getting the process systematically and by testing quantitative and qualitative examinations and fuzzy synthesize evaluation make qualities of map generalization approach to these of artificial generalization."Scientific decision-makings include legal procedures and correct contents". Land use plan is government measures which are dispose land resources cohere with various needs. The nation draws up the overall plan of land use to stipulate the use of land, strictly restrict farmlands to construct lands, control the total amount of construct lands to perform special protects for cultivate lands. This thesis brings out favorable conditions and provides basis on dynamic monitors of land use status, continual uses of land resources, updating and maintaining enforcement of land use plan at real time and amending decision-makings.