Do you require the actual parameters? Would it be acceptable to generate a set of control vectors that you could reuse in an AffineWarper transformer? I think that generating the control vectors should be relatively easy; do a CoordinateFetcher on your second point dataset, FeatureMerger it to your first dataset based on the common ID, and then do a 2DPointAdder using the second dataset's coordinates to turn your first dataset's points into vectors. Note, I haven't actually tried this, so it might not work at all :) Jason
________________________________ From: [email protected] on behalf of clambert_aamh Sent: Tue 2006-09-19 4:36 PM To: [email protected] Subject: [fme] Re: Parameter Computation Hi Bryan Thanks for your reply :) Sounds a little convoluted!! We do have other customised software to calculate parameters, was just hoping FME could be a one stop shop in this case! Carly --- In [email protected], "Bryan Waller" <[EMAIL PROTECTED]> wrote: > > Hi Carly, > > I don't think FME does this 'as built', but I think if you strung some transformers like pointconnector, measure, neighborfinder together to calculate distance/angle or some other measures between points that are known to be the same you could probably figure out a transformation. If I was a Geomatics engineer like the smarter people in my office I could tell you exactly how to build the crazy matrix algebra required, but it makes my brain hurt even thinking about it. > > Bryan > > > Bryan Waller, GIS Data Coordinator > Midwest Surveys Inc. > [EMAIL PROTECTED] > ph.403.735.9344 (direct) > ph.403.244.7471 (main) > ph.403.830.6517 (cellular) > fax.403.244.2466 > www.midwestsurveys.com/ > > 50 Best Employers > -----Original Message----- > From: clambert_aamh [mailto:[EMAIL PROTECTED] > Sent: September 18, 2006 5:29 PM > To: [email protected] > Subject: [fme] Parameter Computation > > Hello All! > > Is it within FMEs capabilities to take two sets of the same points but > within different coordinate systems and compute parameters for > transformation of further features? > > Many Thanks > Carly > :) > > > > > > > > > Join us at the FME Worldwide User Conference Sept. 21-22, 2006 Vancouver BC Canada. For more information, visit www.safe.com/2006uc. > Yahoo! Groups Links > Yahoo! Groups Links Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/fme/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/fme/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
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