In this chapter, you will learn how to create, translate, and rotate three-dimensional objects in a three-dimensional space. You will also learn how to project and display them on the two-dimensional surface of your computer screen. In general, movement of an object implies both translation and rotation. I discussed this in two dimensions in the previous chapter. You saw that translation in two dimensions is trivial. Just add or subtract a quantity from the x coordinates to translate in the x direction, similarly for the y direction. In three dimensions, it is still trivial, although you ...
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