Hi Matthew, I am interested in this topic also. For a "closed" curve (or outline) one possible way is to adjust the outline to a elliptic fourier series and then come back to a series of n equidistamnt points points (being n a predefined number). Rolhf provides the formulae for both the elliptic and the inverse elliptic transformationm (for example in ntsys manual) and he has implemented it in TPSdig2. However, is it possible to apply the same principle to an "open" line using other type of fourier transformation? Miquel [EMAIL PROTECTED]
morphmet escribió: > Hello all, > > Does anyone know of a program/method that would allow me to place points > on a curve based on percent of the total distance from one end of the > curve to the other? The data would be in paired xy coordinates. For > example, if I have a curve made up of (x,y) points that is 10 cm in > length, I would like to determine the coordinates of positions on that > line at 10%, 20%, 30% etc. (i.e., every cm) of the total distance by > interpolating between the coordinate pairs I already have. > > Thanks for any help, > > Matt Burton-Kelly > > > > > ----------------------------- > > Matthew Burton-Kelly > > Graduate Student > > Department of Geology and Geological Engineering > > University of North Dakota > > (802) 922-3696 > > [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > > http://uweb.und.nodak.edu/~matthew.burton.kelly/ > > -------------------------------------------- > > "About thirty years ago there was much talk that geologists ought only > to observe and not theorize; and I well remember someone saying that at > this rate a man might as well go into a gravelpit and count the pebbles > and describe the colors. How odd it is that anyone should not see that > all observation must be for or against some view if it is to be of any > service!" > > -Charles Darwin, in an 1861 letter to Henry Fawcett. > > > > -- Replies will be sent to the list. For more information visit http://www.morphometrics.org
