THE STUDY ON RAPID VISUALIZATION OF GLOBAL MASSIVE SPATIAL DATASET PROCESSING

摘要

Virtual Digital Earth or the system of terrain visualization belong to the system of data-intensive applications, the data which applied to the system is from hundreds of MB to TB. If the virtual systems of the network model achieves the rapid real-time visualization of the mass data, the key is the organization of data. In view of this, the paper build a multi-resolution tile pyramid as the global data to study, and it provides the block-handling algorithm. The most fundamental aim that we adopt this strategy is to reduce the amount of the data which participate in topographic drawing reasonably, thereby we can reduce the time to simplify the complexity of the algorithm.