Path: utzoo!attcan!uunet!bionet!stjude.org!eddy From: eddy@stjude.org (Pat Eddy) Newsgroups: bionet.software Subject: Re: digitising tablet software Message-ID: <1207@stjude.org> Date: 20 Jun 89 11:35:31 GMT References: <8906191649.AA07937@nimsn41.> Lines: 65 In article <8906191649.AA07937@nimsn41.>, s_pyke@national-institute-for-medical-research.mrc.ac.uk (S. Pyke) writes: > I have been asked to come up with a solution to the following problem by a > colleague. I am loathe to write something myself 1) because software > development is not relly my field and 2) because I'm sure someone must > have done this sort of thing already better than I could. If anyone knows > of commercially available software to help or of public domain algorithms > I'd be pleased to hear from you. > > In essence the problem is the sort of thing a draughtsman might want to > deal with. Data is kept in the form of closed shapes drawn in the plane > of a very large piece of paper (in the region half a metre by two > metres). The idea is to trace round these shapes on a digitising block, > label each shape with a unique tag and then calculate certain > characteristic quanties like area and geometric centre. Finally, it > ought to be possible to relate the location of all the closed shapes to > one another, say by giving relative coordinates of their centres. > > In principal it shouldn't be too difficult. On the other hand the sheer > size of these 'graphs' is a very real problem. > > If anyone has any ideas I'd be pleased to hear from you. > > Thanks, > ____________________________________________________________________________ > Stephen Pyke JANET: s_pyke@uk.ac.mrc.nimr > Lab. Mathematical Biology UUCP: > Nat. Inst. Medical Research DARPA: s_pyke%mrc.nimr@nss.cs.ucl.ac.uk > The Ridgeway > Mill Hill > LONDON NW7 1AA Tel: (+44) 01-959 3666 > U.K. ext. 2297 > ____________________________________________________________________________ A company named Jandel Scientific sells a product called SIGMASCAN which might do what you want. Here is their address and phone number: Jandel Scientific 65 Koch Road Corte Madera, California 94925 Phones: 415-924-8640 800-874-1888 We've been very pleased with their SIGMAPLOT program so I expect that the SIGMASCAN product is probably good also. > -- Sincerely, Patricia Eddy ============================================================================== Internet address: eddy@STJUDE.ORG From BITNET : eddy%stjude.org@net.bio.net Address : St. Jude Children's Research Hospital Molecular Biology Computer Facility 332 N. Lauderdale Memphis, TN 38101 USA Voice : 901-531-2385 ==============================================================================