![]() However to have an appreciation of what's really happening the mathematical understanding is a great thing to learn. ![]() I don't think you can say this is a bad thing because you don't always want or need to know the mathematics behind the process, you just want to be able to draw without thinking about this. The approach that seems to be used by Technical Drawing syllabuses in NSW to draw simple 3D objects in 2D is almost entirely graphical. In this article I examine the different methods of projection and their mathematical roots (in an applied sense). ![]() In the field of technical drawing, projection methods such as isometric, orthogonal, perspective are used to project three dimensional objects onto a two dimensional plane so that three dimensional objects can be viewed on paper or a computer screen.
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