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From |
"Fiedler, James (JSC-SK)[USRA]" <james.fiedler-1@nasa.gov> |

To |
"statalist@hsphsun2.harvard.edu" <statalist@hsphsun2.harvard.edu> |

Subject |
st: RE: Some interesting 3D graphs |

Date |
Fri, 19 Mar 2010 10:18:36 -0500 |

Thanks for sending this. Many of the supplemental materials (direct url: http://pubs.amstat.org/doi/suppl/10.1198/jcgs.2010.191ed) require JavaScript, which is disabled where I am, unfortunately. A very long response follows. They mention two ways of making 3D graphs. The first requires 1. writing your object to a common 3D format like .off 2. opening the file with MeshLab (a free modeling program) and converting to .u3d 3. embedding the model in a pdf using LaTeX and the movie15 package. If you're thinking about doing this, here's my experience: The first version of MeshLab that I got didn't save to u3d correctly. I downloaded a little newer version of MeshLab a little later, reinstalled, and the problem had been fixed. Also, besides saving as a u3d I had to explicitly write in the .u3d extension or it didn't save correctly. Also, make sure all of the files they mention here http://pubs.amstat.org/doi/suppl/10.1198/jcgs.2010.191ed/suppl_file/supplement.pdf are up-to-date. The LaTeX file ifdraft.sty is found within the oberdiek package. (A simple google will tell you that, but for some reason it took me a little while to figure it out.) The second option is to use Asymptote. This is the method I am using now. Why: 1. Asymptote allows color and transparency (as they mention) 2. the u3d-through-MeshLab gives a model that hides some portions depending on angle. See http://pubs.amstat.org/doi/suppl/10.1198/jcgs.2010.191ed/suppl_file/supp_g.pdf vs http://pubs.amstat.org/doi/suppl/10.1198/jcgs.2010.191ed/suppl_file/supp_j.pdf 3. Asymptote is a general graphing language. I can add coordinate axes and labels with simple commands. Also, Asymptote uses LaTeX for labeling, so you can put rendered LaTeX directly in your graph. (Thus you should have LaTeX installed before installing Asymptote. I don't think Asymptote even works without some kind of TeX.) Asymptote has a steep learning curve (for me, at least, possibly because of not having strong programming skills). Hence, I am currently working on a Stata program for 3D graphing using Asymptote. Essentially what I am doing is translating Stata syntax into Asymptote syntax, so that you could make Asymptote graphs without having to learn any of the Asymptote language. The program will hopefully also automate part of the process of getting the 3d model into a pdf. James ________________________________________ From: owner-statalist@hsphsun2.harvard.edu [owner-statalist@hsphsun2.harvard.edu] On Behalf Of Kieran McCaul [Kieran.McCaul@uwa.edu.au] Sent: Thursday, March 18, 2010 8:33 PM To: statalist@hsphsun2.harvard.edu Subject: st: Some interesting 3D graphs ..... Some of this stuff looks interesting. The animations are in pdfs files in the supplementary materials. Levine RA, Tierney L, Wickham H, Sampson E, Cook D and van Dyk DA (2010). Editorial: Publishing Animations, 3D Visualizations, and Movies in JCGS. Journal of Computational and Graphical Statistics 19(1): 1-2. http://pubs.amstat.org/toc/jcgs/19/1 ______________________________________________ Kieran McCaul MPH PhD WA Centre for Health & Ageing (M573) University of Western Australia Level 6, Ainslie House 48 Murray St Perth 6000 Phone: (08) 9224-2701 Fax: (08) 9224 8009 email: Kieran.McCaul@uwa.edu.au http://myprofile.cos.com/mccaul http://www.researcherid.com/rid/B-8751-2008 Epidemiology is so beautiful and provides such an important perspective on human life and death, but an incredible amount of rubbish is published. Richard Peto ________________________________________________________________________ __ IMPORTANT: This email is intended for the use of the individual addressee(s) named above and may contain information that is confidential, privileged or unsuitable for overly sensitive persons with low self-esteem, no sense of humour or irrational religious beliefs. If you are not the intended recipient, any dissemination, distribution or copying of this email is not authorised (either explicitly or implicitly) and constitutes an irritating social faux pas. * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/ * * For searches and help try: * http://www.stata.com/help.cgi?search * http://www.stata.com/support/statalist/faq * http://www.ats.ucla.edu/stat/stata/

**References**:**st: Some interesting 3D graphs***From:*"Kieran McCaul" <Kieran.McCaul@uwa.edu.au>

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