Programação gráfica tridimensional - sua aplicação no desenho da superfície z=f(x, y)

Abstract

Born from the association of the computer with the technologies associated with television, the area of ​​graphic programming was until recently only explored by those who had access to large computers and high-priced display devices, necessary for the generation of graphic images. Now, due to technological developments in microelectronics, it is possible to find microcomputers, small and affordable, powerful enough to support high-end graphics programming applications. Therefore, experimentation with graphic programming is accessible to a wide audience. However, the real difficulty in learning graphic programming lies in the complex nature of the subject itself [Plastock and Gordon, 1991]. This work aims to create a computer system capable of drawing surfaces in the form Z=F(X,Y) and also to create a library of functions and procedures for Borland Pascal's graphics mode. The work is divided into three parts: □ Graphics Programming - In this part, concepts such as: three-dimensional graphic transformations and applications of graphic programming are described. □ Surface Z=F(X,Y) - This part deals with the definition of a surface, form of generation, nomenclature, classification, order, examples of surfaces given in the form Z=F(X,Y) and description of the algorithm used to sketch your graph. □ Algorithm Implementation (Floating Horizon) - It is in this part of the work where the algorithm is encoded in a concrete language (Borland Pascal 7.0). The results obtained are constituted by an application that draws the surfaces given in the form ZF(X,Y) and several units (libraries) of functions and procedures that, in a combined way, allow a better presentation of information on the screen, when in graphical mode from Borland Pascal