Based on two-view and projection principle as well as geometrical theorem, some algorithms for recognition of lines and planes position and relationships are realized with VC++ program by using of AutoCAD and ARX.
By thoroughly analyzing the definition, label and legend of direction view listed in paragraph 6.2 in GB/T 17451 -1998 and its relative problems, this thesis expounds the problems in view of projection principle and makes some supplements to the items mentioned above.
This paper establishes a pivot element predictive r egression model between billet temperature variable and process variables with m ulti-statistic projection principle and PCR method, and parameters of the model are reckoned based on the actual data from a steel works.
This thesis focus on GPS application in magnetic suspension engineering: ① the formulation of oblique cylindrical projection is worked out according to characteristics of long distance precise engineering and map projection theory. The author has developed an application to accomplish coordinate conversion from generally used coordinate systems to oblique Maglev Coordinates System.
The basic projection theory is applied to the 2D parameterized drawing program of ship' s propellers. The method proposed is implemented for MAU type of propellers by using VBA language under the environment of AutoCAD 2000.
With this method,we built a weighed grey correlation matrix of each survivability design scheme vs different evaluation index by grey correlation theory,and calculated grey correlation projection values of the design schemes comparatively to the perfect scheme according to vector projection theory. The grey relation projection values can be used for evaluation of the schemes.
The method builds a weighted grey relation matrix of the evaluation indexes for aircraft conceptual design schemes with grey relation theory,then calculates grey relation projection values of the design schemes on the perfect scheme by vector projection theory,the design schemes can be evaluated by the grey relation projection values.
It was found that the place on two-dimensional (2D)plane could correspond to the bondary point of three-dimensional (3D) pieces of cloth basing on the projection principle. Transforming three-dimensional pieces of cloth into two-dimensional ones was realized by using the cubic uniform B-spline to fit the boundary points of two dimensions.
It was found that the place on two dimensional (2D)plane could correspond to the bondary point of three dimensional(3D) pieces of cloth basing on the projection principle. Transforming three dimensional pieces of cloth into two dimensional ones was realized by using the cubic uniform B spline to fit the boundary points of two dimensions.
Based on the projection principle of tridimensionality, the problem of how to collect and set the position of the mouse in the 3D windows′ were solved.
It focuses on the application of oversized screen(36x 18m)laser video projection technology which is different from the general projection television, It also makes a basic analysis of its projection principles, comprehensive laser effects and synchronism controlling technology.
Three methods to obtain the CAD model's boundary are summarized, a technique to generate 3D boundary from 2D drawing is given based on drawing projection principles.
The new analysis proposed here claims that it really involves movement (of an inherently Case-marked NP) to subject position, and thus poses no problem for the Projection Principle.
It also provides some evidence for a model of grammar in which thematic relations are not established before LF (contra a GB-style Projection Principle).
At the same time, the prohibition onwh-extraction from subject NPs is shown to be a purely syntacticphenomenon which arises from the particular way in which the Extended Projection Principle is satisfied in English.
From these considerations one arrives at a new perspective in which von Neumann's Projection theory and the later Effects theory of Ludwig are seen within an enlarged theory of Measurors and Preparors.
The new analysis proposed here claims that it really involves movement (of an inherently Case-marked NP) to subject position, and thus poses no problem for the Projection Principle.
Within grammatical theory, the Projection Principle holds that each level of syntactic representation is a uniform projection of the lexical properties of heads.
Pansystems analysis is concerned with a sort of transfields investigations and applications of the concepts what are called pansystem, panmorphism, pansymmetry etc.. It is a sort of disscusion of operation research concerning control, recognition, games and simulation, and is also certain extensions, complements or new generaliz-ations concerning the fundamental investigations of cybernetics, fuzzy mathematics, logic and methodology, etc.. The present paper is a continuation of the authors previous works [1...
This article introduces a new method of reading drawings——the notationprojection method,by which the students learn to read the figures of multi-view orthogonal projection more receptively than before for its visualization and simplicity.At the same time the method may be also applied easily to draw the axonometrical projection figures.The method is set up on a basis of principle of oblique projections and it requires only a sheet of tracing paper to cover the usual multi-view orthogonal projection.As a tea...
In this article, the graphic theory and method of the projection of straight line on the surface of revolution has been studied, the parameters of influence about projection and some particular conditions has been analysed, particular solution of the projection of straight line on the surface of alignment has also been discussed. According to fundemental idea of the path of contact of conjugate surface, the graphic method (the path of contact correlative projection principle) has been put forward for determ...
投影原理
projection principle
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