Based on this model,feature based fixture automotive variant design was realized based on geometry reasoning.

This paper introduces a method which uses geometry reasoning & degrees of freedom calculating based on constraint driven to solve the problem of checking over constraint & under constraint.

In order to increase the efficiency of traditional construction process planning,this paper presents an approach to automatic construction planning based on artificial intelligent and geometric reasoning.

In this paper, a geometric reasoning algorithm for grasping planning of intelligent robot is introduced.

The artificial intelligence techniques in-cluded in the approach, such as constraint manipulation and geometric reasoning, can deduce and predicateimage models when only the partial 3-D information of object are known.

On Kant,Husserl and Wittgenstein s Approaches to the Philosophical Thought of Geometric Figure;

Finally the paper shows the realization of algorithm by vc++ language,which can recognise the regular geometric figure in the computer using this program.

This paper defines fuzzy sets, researches some problems of fuzzy mathematic and discusses the subjects of geometric figure with the concept of convex sets.

The problems of optimization and optimal geometrical figure of the resection are discussed in the paper, moreover, a practical and simple method for determining the reliable point position is given.

The E_R Model of Characteristic Parameter Library for One Class of Part was given and general methods for programming searching system and parametric geometry graphics were analyzed.