In this paper, study on organization、storage and visualization of the massive terrain dataset.By building mass DEM terrain multi resolution model to organization the data,using data engine to store and dispatch the large-scale terrain data. Design the visualization system of the South Mountains and North Mountains in LanZhou city on these rationale.The system haves the functions
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There are some problems about the issue of digital content on mobile terminals,for example,digital content copyright protection and the speed of querying data on terminals and so on.This paper put forward a solution that developped software of digital content issue based on the smart storage card platform on mobile terminal.The technology of smart storage card
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With the development of DE (Digital Earth) and GIG (Global Information Grid), how to implement a global virtual terrain environment has caught attention of scholars, and till now there are still many challenging problems in the air. Among these, is how to balance the overload between visual fidelity and real-time rendering, which is caused by
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