Abstract
By introducing three-dimensional graphical types into PASCAL and by providing the means of defining any drawing with them, we obtain a powerful structured graphic lanauge, called MIRA-3D.
These 3D graphical tapes, called figures, provide the following advantages to the programmer:
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1)
operations may be restricted to specific types; e.g. the angle between two planes may be defined, but not the angle between two spheres.
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2)
figures can be used as other types; e.g. we may define an array of cubes or a record with figure fields.
Because of the three-dimensional abstract graphical types, MIRA-3D is a very powerful tool for developing structured graphics programs. It also offers the advantages of PASCAL, GSPC and all the other graphical features. The system is reliable and may be easily moved to another environment. MIRA-3D has been used for a certain number of applications, including a three-dimensional computer animation film. The paper also discusses timevarying abstract graphical types, called actors and their impact in computer animation.
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© 1983 Springer-Verlag Tokyo
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Magnenat-Thalmann, N., Thalmann, D. (1983). The Use of 3D Abstract Graphical Types in Computer Graphics and Animation. In: Kunii, T.L. (eds) Computer Graphics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-85962-5_27
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DOI: https://doi.org/10.1007/978-3-642-85962-5_27
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