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copied!<p>Already mentioned in the comments, but I can't skip an opportunity to extoll the virtues of <a href="http://en.wikipedia.org/wiki/Postscript" rel="nofollow noreferrer">Postscript</a>!</p> <p>In the words of Bill Casselmann, author of <a href="http://www.math.ubc.ca/~cass/graphics/manual/" rel="nofollow noreferrer">Mathematical Illustrations</a>,</p> <blockquote> <p>Which [tool to produce sophisticated mathematical graphics] to choose apparently involves a trade-off between simplicity and quality in which most illustrators opt for whatever is perceived to be simplicity. The truth is that the trade-off is unnecessary; once you have made a small initial investment of effort, by far the best thing to do in most situations is to write a program in the graphics programming language PostScript. There is practically no limit to the quality of a PostScript program's output, and as one acquires experience the difficulties of using the language decrease rapidly. The apparent complexity involved in producing simple figures by programming in PostScript, as I hope <a href="http://www.math.ubc.ca/~cass/graphics/manual/" rel="nofollow noreferrer">this book</a> will demonstrate, is largely an illusion. And the amount of work involved in producing more complicated figures will usually be neither more nor less than is necessary.</p> </blockquote> <p>I spent the last two months working up a <a href="http://code.google.com/p/xpost/downloads/list" rel="nofollow noreferrer">postscript procset</a> to do <a href="https://stackoverflow.com/questions/12274863/how-to-trap-my-surface-patches-to-prevent-the-background-from-bleeding-through/12346667#12346667">3D drawing</a>. That's right: 3D -- from <em>scratch</em> -- in 2 months with a $10 used book, a text editor, and ghostscript.</p> <p>Postscript graphics programs convert readily to PDF and SVG to share your creations with the non-postscript-aware world.</p>

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