Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > comp.graphics.apps.gnuplot > #2374

Re: Derivative of a Bezier approximating curve

Newsgroups comp.graphics.apps.gnuplot
Date 2014-03-25 08:22 -0700
References <2e4f1d8d-f982-4b46-b9e7-ac797cfe8bad@googlegroups.com>
Message-ID <1001ca90-121f-4303-ab40-21402f922f02@googlegroups.com> (permalink)
Subject Re: Derivative of a Bezier approximating curve
From tab583 <rft784@gmail.com>

Show all headers | View raw


This works perfectly apparently! I didn't understand exactly HOW though (I'm a bit in a hurry). Will take a better look in this soon. 
Thank you very much! 


Il giorno domenica 23 marzo 2014 20:23:01 UTC+1, tab583 ha scritto:
> Hi, I have a data file containing x and y values. I use the following command to approximate the data points with a Bezier curve:
> 
> 
> 
> plot 'myfile.dat' u 4:6  every 1000 smooth bezier
> 
> 
> 
> I would like to plot the derivative curve of the aforementioned Bezier curve. How can this be done? As an example, is there a simple way to create a function from the Bezier curve and perform calculations on this function? I mean something like:
> 
> 
> 
> myfunc(x) = 'modulo.dat' u 4:6  every 1000 smooth bezier
> 
> plot d/dx * myfunc(x) 
> 
> 
> 
> Thank you

Back to comp.graphics.apps.gnuplot | Previous | NextPrevious in thread | Next in thread | Find similar | Unroll thread


Thread

Derivative of a Bezier approximating curve tab583 <rft784@gmail.com> - 2014-03-23 12:23 -0700
  Re: Derivative of a Bezier approximating curve Karl <mail.kfr@gmx.net> - 2014-03-23 22:37 +0100
  Re: Derivative of a Bezier approximating curve tab583 <rft784@gmail.com> - 2014-03-25 08:22 -0700
    Re: Derivative of a Bezier approximating curve Karl <mail.kfr@gmx.net> - 2014-03-25 20:34 +0100

csiph-web