Research On Expressional Technology And Application Of The 3D Fire Protection Information In The 3D Fire Protection Archives Generation System

It is important to prevent fire in the fire control. The fire control in high large buildings should be emphasized because the constructions are complicated and people are difficult to leave. In our country, the fire protection archive composes in document and 2D plans mostly. However, it is more integrated and intuitional if we use the mode of 3D to represent the high building's structure, fire protection establishment's distributing and evacuated channels. The target of the project is to research and develop how to make high building's 3D computer model quickly. The system can provide the 3D instrument for fire control and improve the modernization for our city's fire prevention and fire fighting.The project uses Java language as development plat, and it uses Java 2D API to describe 2D plans, and it uses Java 3D API describe how to create 3D scene mutually. This text begins with the basis of previous' work which are that using Java3D to realize the study of the technology of the building 3D scene by mutual way , adopting Object Oriented to design the software construction of 2D and 3D objects and achievement of accessing data oriented Java3D three-dimensional virtual scene, they represent the inside structure of building with the style of 3D. The following three points are the main contents of the study. Firstly, author completed the representation technology of 3D fire protection information. In our country, the fire protection archives compose in document and 2D plans mostly, which is inconvenient for users. Secondly, author resolves the memory leak problem of this system. The reason of the memory leak is that the memory of used by 3D scene is not released. However, the memory release way falls short of the way of Java. Finally, author design and realize the browser of this system. The most important function is browsing, so this text designs two types of browses : one is mouse browse ,the other is view changing browse.This project is a longitudinal project by Shenyang Science and Technology Institute.