Abstract:

When several non-standard maps are joined together and the geographic files are combined, the graph parameters will be changed to make pixel disordered. To solve the problem mentioned above, the paper seeks the characteristics of map transformation, graph parameters as well as pixel size, and analyzes their relationship to achieve the parameter's correction. Eventually, it fulfills the normalization and obtains the sheet which has uniform original parameter's including the projection, type plotting scale and map parameter. The work in this paper provides method instruction for non-standard sheet's standardization and improves the efficiency of non-standard sheet's making.

Key words: MAPGIS cartography, graphics parameter variation, map transformation, normalization