CYBERCITY:CONCEPTION,TECHNICAL SUPPORTS ANDTYPICAL APPLICATIONS
Li -, �. Deren, Zhu Zhu, Qing Qing, xiafei · Acta Scientiarum Naturalium Universitatis Sunyatseni · 2000
CyberSpace first appeared in the science fiction,“Neuromancer” by W.Gibson (1984),this term was applied for describing the desperate vision of the near future,urban decay,and neural implants.Recently,it is perceived as a word referring to an entirely new universe and the space virtually existing within the worldwide computer Internet. Because CyberSpace is a new word up to now,there is not a definite conception about it yet.But we can understand it as follows: CyberSpace is a virtual space whose data information is stored in the computer Internet.Creating any virtual space depends on the electronical data in the Internet.Though it is less than a couple of decades since CyberSpace was brought forward,it had grown at such a remarkable speed that it had expanded to the widest computer net in the world —— Internet.Now its increment still maintains at the double rate each year,and it is expected that the CyberSpace will bring a new paradigm of network society for the next century. CyberSpace has special spatial characteristics.The physical distance is not valid in this space,so we must use a new approach to describe the distance.There are three methods.One is valid distance that is a functional distance,as the distance are described by time or cost.The second is a psychological distance.Namely,it is a subjective measurement that people apperceive distance as they are away from the object.The third is a holistic distance where each chain has its unit.On the other hand,most CyberSpace do not take account of the gravity.In fact,the bearing,magnitude or time consequence of the gravity can be defined at random and easily modified,however,the unit length and direction of the 3D vector change with the different positions in CyberSpace.In this sense,the scale or shape of a single building and street are not restricted by the spatial condition.The only factor maintaining the spatial shape is topology replacing the origin gravity,system time,color set and spatial dimension setup with the own psychological s