Dear Caley: I suggest you to start using a CAD-based software (like AutoCAD, but others available for free), and so you will be able to measure vector information (you aren't working with images directly = raster) and make a preprocessing of your info; then you can exort as any kind of file to be opened in a statistical software package.
Hope to be helpful. Best regards, Francsico A. Ruiz-Avilés 2007/5/7, morphmet <[EMAIL PROTECTED]>: > > Hi all, > > Does anyone know of any tools (preferably free) that can extract and > measure arc and chord lengths easily from 3D surfaces? I have laser > scans (.ply, .obj or .stl files) from joint surfaces. I'd prefer > something where I could "draw" on the arc of interest if there is such a > program. > > I also need a tool to find the coordinates of a centroid that lies on > the surface if you have any suggestions for that. > > Thanks for your help. > > Caley > > -- > > Caley Michael Orr > PhD candidate > School of Human Evolution and Social Change > and Institute of Human Origins > Arizona State University > Tempe, AZ 85287-2402 > > Office: 480-727-6576 > Fax: 480-727-6570 > Web: www.public.asu.edu/~corr1 > > > -- > Replies will be sent to the list. > For more information visit http://www.morphometrics.org > > -- ******************************** Francisco A. Ruiz-Avilés C/ Dr Gregorio Marañón, 43 04005 Almería (Spain) [EMAIL PROTECTED] +34 607 511 407 ******************************** -- Replies will be sent to the list. For more information visit http://www.morphometrics.org
