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Method for dispatching growth models for simulation of vast forests

A growth model and scheduling method technology, applied in software simulation/interpretation/simulation, program control devices, etc., can solve the problems of poor real-time performance, unsmooth scene visualization, long calculation process, etc., and achieve fast data reading speed and scene visualization. smooth effect

Active Publication Date: 2015-03-04
ZHEJIANG UNIV OF TECH
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Problems solved by technology

[0003] In order to overcome the disadvantages of poor real-time performance, long calculation process, and unsmooth scene visualization of the existing forest scene simulation, the present invention provides a large-scale oriented simulation system with good real-time performance, reduced calculation time, and smooth scene visualization. Scheduling method of growth model for forest simulation

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  • Method for dispatching growth models for simulation of vast forests
  • Method for dispatching growth models for simulation of vast forests
  • Method for dispatching growth models for simulation of vast forests

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with the accompanying drawings.

[0031] refer to Figure 1 to Figure 5 , a large-scale forest simulation-oriented growth model scheduling method, according to the simulation target to obtain large-scale forest scene simulation data, and store in the computer memory, and then according to the large-scale forest scene data in the different scheduling methods of the simulation process Initialize the data structure (storage structure in internal and external memory), such as figure 1 shown.

[0032] In the computer memory, for the scene information data (not including tree information), we store it in the form of a quadtree according to the quadtree segmentation of the terrain.

[0033] For the tree information data, considering that the data in the memory needs to be deleted and stored more frequently during the calculation process, the memory pool technology is used for storage, such as figure 2 sho...

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Abstract

A method for dispatching growth models for simulation of vast forests. The method includes the following steps of firstly, acquiring simulation data of a field of the vast forests according to simulation target, initializing the structure of the simulation data, storing field information data excluding tree information in a quad-tree manner; storing tree information data by the memory pool technology; secondly, utilizing field blocks as units and traversing all the field blocks during computing tree growth models on the field of the vast forests, and computing tree growth in each field block; and thirdly, visualizing the field of the vast forests and storing computing results of the tree growth models in the field of the vast forest according to the computing results of the tree growth models in the field of the vast forest. The method for dispatching growth model for simulation of vast forests is excellent in instantaneity, high in speed of computing process and smooth in field visualization.

Description

technical field [0001] The invention relates to computer virtual simulation technology, in particular to a scheduling method of a growth model of large-scale forest simulation. Background technique [0002] Computer virtual simulation technology has changed the traditional forestry management model, enabling people to predict the growth of trees through computers. Dynamically simulating changes in forest scenarios according to specific conditions can enable forestry management decision makers to make more scientific management decisions. However, for the simulation of large-scale forest scenes, the amount of scene data is very huge (including tree information data, terrain data, etc.). For example, to simulate the growth of trees in an area of ​​5km*5km, the tree information required for the calculation of the plant growth model is about 1.6-2G of data, and the LOD technology is often used for scene rendering, and a fine 3D model is used for places close to the viewpoint F...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/455
Inventor 范菁苏中原董天阳范允易
Owner ZHEJIANG UNIV OF TECH