And Right) on the keyboard, one can make the map move towards the corresponding
direction of translation. Through dragging mouse, one can see wherever he likes. Using the
mouse wheel, you can control a map's magnitude, according to the user's needs to view
different levels of map. The lower left of the map where will display the current coordinate
of the mouse on the map. In a div layer, we depict a hotspot of new buildings, this layer
can be displayed according to the different map layers, it also can automatically scale. By
clicking on hot spots, it can show the hot spot's specific information. One can also type
into the query information based on his need, and get some relevant information. In
addition, one can choose to check the three dimensional maps and satellite maps through
clicking the mouse.
Major functions:
User information management: Check the user name and password, set level
certification depending on the permissions, allow users of different permissions to
login the system via the Internet.
The inquiry of Location information: System can provide users with fuzzy inquires
and quick location.
Map management: Implement loading maps, map inquires, layer management, and
other common operations such as distance measurement, and maps zoom, eagle
eye, labels, printing, and more.
Roam the map: Use the up and down keys to roam any area of the map, or
drag-and-drop directly.
III. THE PROCESS OF SYSTEM DEVELOPMENT
To the first, we collect the information which contains the outward appearance of
architectural buildings, the shape of the trees the design of the roads. And then, we
construct three dimensional scenes with 3DS MAX software [2]. That is to say we render
