Design And Implementation Of Thematic Mapping Module For High Resolution Remote Sensing Image

In recent years,China has made great progress in the field of space and remote sensing technology.With the continuous development of remote sensing technology,the ability to obtain remote sensing images and the quality of remote sensing images have been constantly enhanced.The number of remote sensing images has increased exponentially,and the demand for processing software and processing technology has been increasing.It is very important for remote sensing data to use the processing software to get valuable information from remote sensing data and display it.In the application of high resolution remote sensing technology to earth observation,the most important component is the processing of high resolution remote sensing images.Processing useful information extracted from remote sensing images has important guiding role in actual production and life.Thematic mapping module is based on the four level products of high resolution remote sensing satellite,and generates related thematic products by processing high resolution remote sensing images.In view of the needs of users in the marine sector,a detailed demand analysis is made for the development of thematic mapping modules,thus providing a basis for the research and development of modules.The tasks developed by the thematic mapping module are clarified:1)automatically generate thematic maps based on template maps according to the work sheet or manually selected files;2)create thematic maps by interacting with users through dialog boxes.Based on the actual requirements of the project,using the combination of Arc GIS Engine and.NET technology,the programming language of C#is used as the programming language,and the thematic mapping module is realized through the object-oriented programming method.This module can automatically generate thematic maps by analyzing operation sheets or manual selection files,or create thematic maps by interacting with users.In the process of automatically generating a thematic map,the components in the thematic map are determined according to the attributes defined in the template XML file.The components of the thematic map include the master diagram,the compass,the legend,the scale,and the ocean bureau logo.Interactive creation of a thematic map can manually add appropriate titles,description information,latitude and longitude grids,compass,scale,etc.to a thematic map by interacting with users to produce a new thematic map.The thematic mapping module developed not only meets the needs of users,but also has the characteristics of beautiful interface and easy operation.