Yes, that was the intended behavior. As mention on a prior posting, the closed curve option is only for esthetics – it displays a line to connect the first and last points but coordinates on the first point is not added to the end of the list. In GM one must avoid the chance that two points would have identical coordinates as a deformation in their positions would require an infinite amount of bending energy. However I could change the interpolation rule if users request it.
____________________________________________ F. James Rohlf, Distinguished Professor, Emeritus. Ecology & Evolution Research Professor, Anthropology Stony Brook University From: J Coelho [mailto:joaopedrocoe...@gmail.com] Sent: Sunday, February 26, 2017 3:41 AM To: MORPHMET <morphmet@morphometrics.org> Subject: [MORPHMET] tpsDig2 and closed curves Greetings morphometricians, I noticed a strange behaviour while attempting to obtain closed curves from tpsDig2. When I resample the curve, the first and last point remain fixed, and only other points get repositioned. This is the correct behaviour for open curves. However - to my understanding - in closed curves only one of these points (ex. first) should be fixed. To reproduce it, follow: 1. Options > Close Curve 2. Modes > Draw Curve 3. Now, draw anything you wish, ex. an ellipse. 4. Right click on your closed curve > Resample Curve 4.1 Input a far bigger number of points (I know, I know, but it's easier to notice this way) 4.2 Chose [By Length] > Ok. The distance between last and first landmark remains fixed. Again, a behaviour I'd only expect in open curves. Am I wrong to expect the resampling to effect all points except the first one in the specific case of closed curves?? Thanks in advance, Best Regards, -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org --- You received this message because you are subscribed to the Google Groups "MORPHMET" group. To unsubscribe from this group and stop receiving emails from it, send an email to morphmet+unsubscr...@morphometrics.org <mailto:morphmet+unsubscr...@morphometrics.org> . -- MORPHMET may be accessed via its webpage at http://www.morphometrics.org --- You received this message because you are subscribed to the Google Groups "MORPHMET" group. To unsubscribe from this group and stop receiving emails from it, send an email to morphmet+unsubscr...@morphometrics.org.