With the deep research on the spatial objects model of GIS and the representation of natural geographical feature,this paper put forward the fuzzy spatial objects.

Based on the features of fuzzy objects in the image and the cloud theory,the paper studies the representation of fuzzy objects in image.

Nine fuzzy membership functions were defined to describe the direction relations between fuzzy objects and crisp objects with corresponding fuzzy sets.

The significance, knowledge representation structure and reasoning mechanism of fuzzy object model are analyzed in detail.

But,there is fuzziness in special data inevitably when abstracted and generalized into objects in GIS, thus the description of fuzzy objects spatial re.

Every element of an object does not always belong to one object, but can belong to several fuzzy objects with a fuzzy number indic.

This paper gives a new 3D spatial object model,iont which the 3D vector spatial data,digital elevation model and digital ground image data are integrated,and introduces COM to the implementation of the spatial object model.

Green Space between Houses——Construction of Fuzzy Space;

In the model, ideal condition of geological factors is taken as the fuzzy space and the closeness of ideal situation against the actual geological conditions and is taken as aythefic evaluation index to constract the mathemation model.

Based on the elaboration about the implication of Yin Yang theory and its influence on architectural space ,this essay discusses the form of fuzzy space in three aspects:the building, the group of buildings and the urban system, and points out that the fuzzy space in Yin Yang theory is a kind of space that is both in and out of a space and that can both combine and coexist with others.