Research On The Technology Of Modeling For High And Large Building's 3D Fire Control File

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. 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 system is to research and exploit 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 system uses Java language as programming tool, it makes use of Java3D graphics exploitation tool to research how to make 3D scene mutually. Author inherits the thought of the primary system and designs the system again. The following four points are the main contents of the study. Firstly, there are some shortages of software construction of the primary system in management visibility, vivid, development efficiency So author gives the new Object Oriented software construction . Secondly, based on the new software construction ,author has accomplished programming. Finally, Java3D API(Java Three-Dimension Application Programming Interface) virtue scene is a section of programming file which is organized and transferred by Java language. The object of a scene graph in Java3D API is only visited and amended during the scene graph is establishing. The former system can not save three-dimensional virtual scene after browsing and editing. Modification is very important to graphics software. The emphasis of the software is building high layer architecture, so we can build it neatly no other than integrate function of modification. By this data structure designed user can modify every layer, delete architecture unit protracted, transform coordinate of architecture unit. So saving and opening the three-dimensional virtual scene are the major problem in our system. Author considers a new method to treat with the problem of accessing data oriented Java3D three-dimensional virtual scene.This studying is a longitudinal problem by Shenyang Science and Technology Institute.