Research On3D Scene Simulation Method For Ecological Rest-oration In Dump Area

Mine land reclamation is man-made ecological restoration and ecological reconstruction,After "the implementation of the Land Reclamation Regulations" promulgated by the StateCouncil in1988.Open pit, waste dump, and other types of destruction of land reclamationwork has been attached great importance to the whole society, And has made great progress.This will undoubtedly require the need for a clear understanding of the dynamic process ofecological restoration. Basic research have been done a lot of the ecological restoration of themine, However, The analysis and interpretation results of Geographic Information Systemdata has been limited to two-dimensional static expression method for a long time. Therefore,it is difficult for people to directly, completely and accurately understand and feel vegetationcondition, landform and physiognomy which reflected by the results, and limit the fullutilization of resources. The Key Problem is how to transform the existing geographicinformation system information and data into intuitive, dynamic understanding of theecological restored effect. With the rise of3D scene building technology based on virtualgeographic environments has provided a new idea for researchers.Based on quantity of document and wide spot investigation,3-dimensional scene ofdump is built firstly. Discrete algorithm is applied in L-system that can improve thesimulation effect of plant-growth model. After the optimization of L-system by discretealgorithm,The dynamic evolvement process of plant changes and the simulation of differentage plants are highlighted. Finally, This paper design and realize three-dimension scenesimulation system based on virtual geographic environment in the ecological recovery ofopen-pit coal mine dump by combining with the modeling software-Multigen Creator.The main content of this paper is as follows：The advancement of related research fields is summarized detailedly from threeaspects,i.e.,3D terrain modeling,3D Realistic Scene Rendering and establishment of treegrowth models.The drawback of above research is also pointed out．Based on the practicaldata and the theory of single tree growth, the visualization of tree growth is discussed.L-system is optimized by using the method of discrete approximation, it get a bettersimulation effect of plant growth. we take the parameter which is simulated by the tree modelinto the3-D model parameter．Then static and dynamic simulation of tree growth isresearched．Three-dimensional scene of dump based on analysis of rendering of3D terrainscenes and technique of3D Solid Body Modeling is built by Multigen Creator. On the basisof study of related theories and algorithms, MFC and Vega Prime is used to design and realize the three-dimension scene simulation system based on virtual geographic environment in theecological recovery of open-pit coal mine dump, it combined the ecological restored effect ofdump with virtual geographic environment,and provided a real human-computer interactionplatform for ecological restoration of dump.