三维图形的消隐算法分析（Analysis of the elimination algorithm of 3d graphics）.doc

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三维图形的消隐算法分析（Analysis of the elimination algorithm of 3d graphics）.doc

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三维图形的消隐算法分析（Analysis of the elimination algorithm of 3d graphics）

三维图形的消隐算法分析（Analysis of the elimination algorithm of 3d graphics） Analysis of the elimination algorithm of 3d graphics Abstract: the construction type is the base of the three-dimension diagram of the computer, while the blanking is the key of the three-dimension form. In this paper, we analyze the blanking calculation method and four diagrams such as the blanking calculation method of the eight objects in the CAD tridimensional diagram. - the key words are made, blanking, interspace, and image space - classification, (modeling) is the base of the three-dimension diagram of the computer, while the hidden surface is the key of the three-dimensional model. What is known as blanking is not to draw the three dimensional model surface that is invisible from the point of view. The core of the elimination method is to judge whether the three dimensional model of the surface is visible. A method of elimination can be seen as a five-tuple, that is HA = (I, O, D, P, S) In this case, I is going to go into a triple pair of the image of the vanishing point; -o is a collection of the two things that have been blanked out; -- D is the number of structures used in the elimination of the access to the bank; -- P is the integral of the operation of the operating procedure for the operation of the operation subclass Three dimensions of the table change Transparent casts change The calculation of the intersection of the basic elements The two zones are restacked The packets of the point and region are included in the test The face is facing towards the test - S for the elimination of the strategy, which is the first order of the first order in which the basic operation of the basic P is adopted. - for this reason, the five elements and the interrelations between them should be considered in the calculation of the implicit calculation. In the graph of the computer, the method of the simplified method is a simple method, which is the method of the polyhedron to force the near curved surf