Resources Of Yunnan Province, Tin And Tin Industry Information System Construction And Application

The tin is the important goods and materials in the national economy and national defense construction, and is the traditional foreign exchange earning superior products in Yunnan and even China. The tin industry is an important basic raw materials industry. Gejiu in Yunnan is very famous tin mine in home and abroad, not only resources are abundant but also the production history is long, the output of tin accounts for about 50% of national total output over the years in Yunnan Province, occupy first place in the whole country. Gejiu is praised as the "tin city ". Been developed for many years, the advantage mineral products that the tin has already become mining industry of Yunnan Province , the tin industry is the advantage industry of Yunnan Province, the tin trade is Yunnan one of the trades with stronger international competitiveness in all national economy trades. No matter or in quite a long time in the future, the tin industry of Yunnan will have very important positions in the tin trade in the world in the past.In China accession to the WTO and world produce country of tin adjustment reform, the tin industry of yunnan faceed greater pressure and challenge. In the face of new century domestic and international tin development and change of industry, the tin industry of yunnan need a geographical information system of resource accord with this trade norm , in order to strengthen their's management level to resources as soon as possible. Changed the coarse way in the past, could promote the international competitiveness of the tin industry of yunnan in the further. Make the tin industry of yunnan cloud establish in an unassailable position in the domestic and international competition in new century in this way only.This text has been described the meaning of the structuring of tin resource GIS of Yunnan Province and the content about the concept and research of the GIS at first; The thesis detailed composition with systematic introduction and function meaning of every part in chapter two, the composition of implementation technique and data base ;The thesis in chapter three has narrated a large number of materials of tin resource and tin industry, it is not the space data that these contents make up a systematic one; The thesis in chapter four has introduced several technology in space data input and some method of solved problem;The thesis at last showed some interfaces of the secondary development software.The system developed this time is a secondary development system based on MAPG1S, it has possessed basic function of GIS software. According to user's enquiry, develop and satisfy the doubling click and inquiring about the system of user's request , we has worked out a large number of picture and text materials, and has carried on the arrangement of all materials , has unified the standard of the map. The systematic interface is easily understood and the maintenance of the system is easy to master. This has certain popularization and practical value to personnel of every different department of application level of the computer inside enterprises.