From: Carl D. Sorensen <c_sorensen@by...>  20090316 03:08:12

On 3/15/09 6:27 PM, "Hendrik Boom" <hendrik@...> wrote: > On Sun, 01 Feb 2009 06:12:45 +1100, Philip Rhoades wrote: > >> Felipe, >> >> Good idea  I'll have a look at that . . >> >> Thanks to all for comments! >> >> Regards, >> >> Phil. >> >> >> Felipe Sanches wrote: >>> now it seems it is just a matter of writing an inkscape extension... >>> >>> >>> On Sat, Jan 31, 2009 at 10:05 AM, Alvin Penner >>> <penner@...> wrote: >>>> the equations that you need to use are given at : >>>> http://en.wikipedia.org/wiki/B%C3%A9zier_curve In order to implement >>>> these equations you'll need the control points. For example, in the >>>> file tst.svg, the four control points are : point 1 = >>>> (481.42857,378.07647) >>>> point 2 = (284.28571,378.07647) >>>> point 3 = (377.14286,632.36218 >>>> point 4 = (280,633.79076) > > Except neither the x nor the y points are equally spaced, so neither will > be a linear mapping of t. >From what I know, equal spacing on x is only necessary if you want to have an easy way of writing y=f(x), instead of y=f1(t), x=f2(t), with t going from 0 to 1. Carl 