抄録
One of the most important and novel issues of users' generating interactive maps from geographic databases is the adaptive control of the amount of visual components comprising the maps with compromises between users' requirements and limitations of display devices. If users adjust the amount by hand through database query languages, the processes must be very tedious.
This paper proposes an environment of supporting users' generating maps from the point of view of new style methods of generalization for raw objects (data) retrieved from geographic databases. The environment provides automatic functions of releasing users' requirements according to limitations of display devices. Also, it aids users to decide characteristic parameters of the maps with some new concepts of measuring states of a map, such as the saturation of it, the inconsistent context of it, and ranks of visualization methods for retrieved raw objects.
