There are two different visualization approaches of 3d - data sets , one is surface rendering algorithm , the other is volume rendering algorithm . the latter is the emphasis of the paper . the paper describes its optical modek algorithm classification and discusses its future applications and problems to be solved
2.
The algorithms cannot meet the requirements above , for its intrinsic quality or reality difficulties . at the beginning of this paper , the structure , workflow , and development condition of global traffic flow guidance system are introduced . then the route optimization choice algorithms classification and structure are summarized
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