Re: [Gnuplot-info] Plotting lines represented by (r, theta)

[Thomas S. <t.s...@fz...>]

a simple example:

xoffset=1.
yoffset=3.
set zeroaxis
set parametric
set xrange [-4:6]
set yrange [-2:8]
set trange [-4:4]
set angles degree
fx(t,phi)=xoffset+t*sin(phi)
fy(t,phi)=yoffset+t*cos(phi)
plot for [i=0:359] fx(t,i) , fy(t,i) notitle


Hi Thomas,

Thanks for help again...but I`m afraid I need more of it!

I`ve had a look at parametric mode and I can plot vertical lines using this
example:
http://t16web.lanl.gov/Kawano/gnuplot/parametric-e.html

But I need to plot a nearly vertical line through a point (x,y) with a
(steep) gradient of m.
Do you have any idea how the plot command will look like now (taking into
account the point (x,y) and gradient m?)

Hope I`m not asking too much!

Thanks


Thomas Sefzick wrote:
> 
> you may use 'parametric mode'
> http://www.gnuplot.info/docs_4.2/gnuplot.html#x1-14400034.4
> 
> 
> 

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