The Planning Design Of The Land Consolidation Based On 3D-visualization Virtual Geographic Environment Model

At present, the study of Land Consolidation and Virtual Geographic Environment both inside and outside the country has made considerable progress. However, the researches about how to apply the virtual geographical visualization model in the layout of land consolidation are very few. In this paper, the research of land consolidation and 3D visualization model of Virtual Geographic Environments are combined together, and achieved certain progress in the following aspects:1. The 3D-visualization virtual geographical environment model based on actuality was establishedIntegrating terrain,traffic,agriculture,irrigation works and some geographical element, the research field model and each establishment model were set up respectively, then conform those two models, the 3D-visualization virtual geographical environment model of research field was built.2,The 3D-visualization virtual geographical environment model based on actuality was layout and designed.Using the 3D-visualization virtual geographical environment model, integrating opinion and decision-making of public,different governmental department and correlative expert,the design of the 3D-visualization virtual geographical environment model was carried out. The centralized data and intuitionistic idea provided by the model, can improve the decision-making efficiency of governmental department, and harmonize the work of different involved governmental department in land consolidation, the lifelike 3D-visualization made the public participate in layout and design easily.3,after layout and design,the3D-visualization virtual geographical environment model was built againBased on actuality model, using amendatory method stage by stage, conforming the design data to the actuality flied model, the3D-visualization virtual geographical environment model was built again after layout and design. Then the 3D model base was set up by transition each geographical object shop drawing to 3D-model. Eventually, hanging 3D-model base and TIN together, the 3D-visualization virtual geographical environment model was built by symbolic tools after layout and design.4,The earthwork of study area was calculated by the fore-and-aft programming model According as actual TIN surface model, based on demarcated field, in the light of field theory, the DEM was designed by the tools of spatial statistics. in the basis of the fore-and-aft programming model, considering the planning field as the basic calculate unit, the earthwork was calculated by 3D statistical tool.In this text,The 3D-visualization virtual geographical environment model was used in Land Consolidation,which extended the technology of the Planning Design of The Land Consolidation, as the result, the significance of this study were as fellow:1,a suit of the method of the Land Consolidation was brought forwardTaking hubei province cibi town for example, The 3D-visualization virtual geographical environment model was introduced in Land Consolidation, the effect of the use of the 3D-visualization virtual geographical environment model was discussed in this text, and the resolvent scheme of the Planning Design of The Land Consolidation was put forward2,the intuitionistic design environment was offeredUsing The 3D-visualization virtual geographical environment model, the intuitionistic and multi-angle espial was came true by some browse tools, then the assistant decision-making can achieve. The use of The 3D-visualization virtual geographical environment model made most of the governmental decision-makers, local seasoned public and correlative subsidiary participate in the planning design easily.3,high-centralized data model was offeredA great deal of date, include the date of terrain, the date of geographical object, the date of traffic and irrigation works, and their attribute, was integrated in the 3D-visualization virtual geographical environment model, which made "WYSWYG" realize, the obvious distinguish and judge have no use for, the thought be more direct, the using efficiency be more high, the pace of decision-making be more speedy.4,the function of GIS was used adequatelyThe area of the Planning Design of The Land Consolidation was very widely,which need not only powerful the function of vectorgraph and mapping,but also the statistical function of diversified correlative land-using attribute-date. GIS was not only a memorizer of date processor, but also have a mass of the function of spatial analysis mathematic statistics. GIS offered abundance statistic tools, which can be used to compute the volume, area and length of the geographical objects, and the calculational amount was predigested, the calculational precision was elevated also.