gnuplot-py-users Mailing List for Gnuplot.py

Hello,
I want to change the values on x and y axis to appear in a non-symmetric 
way, e.g. within a range between 0 and 50000 I want to show the 
following values: 50, 100, 500, 1000, 5000, 10000, 25000. By default the 
split will be in chunks of 5000, so am missing all the details of the 
curve between 0 and 5000.

thanks,
elias

Hello,
I want to change the values on x and y axis to appear in a non-symmetric 
way, e.g. within a range between 0 and 50000 I want to show the 
following values: 50, 100, 500, 1000, 5000, 10000, 25000. By default the 
split will be in chunks of 5000, so am missing all the details of the 
curve between 0 and 5000.

thanks,
elias

Hello,
I want to change the values on x and y axis to appear in a non-symmetric 
way, e.g. within a range between 0 and 50000 I want to show the 
following values: 50, 100, 500, 1000, 5000, 10000, 25000. By default the 
split will be in chunks of 5000, so am missing all the details of the 
curve between 0 and 5000.

thanks,
elias

-- 
The University of Edinburgh is a charitable body, registered in
Scotland, with registration number SC005336.

2009/6/7 Fernando Cladera <el....@gm...>:
> There was a bad indented line (t0 =  tinicial)... Sorry!
> This is the code. I could add the plotting, but i couldn't draw the
> surface.

Look at the examples in the demo.py file

Benny

>
> def funhomo(x,t):
>  return
> eigenvector[0,0]*cos(wfrec*t)*sin(pi*x/(2*L))+eigenvector[1,0]*cos(wfrec*t)*sin(3*pi*x/(2*L))+eigenvector[2,0]*cos(wfrec*t)*sin(5*pi*x/(2*L))
>
> it=int(raw_input("ingrese numero de puntos a obtener: "))
> xinicial=0
> tinicial=0
> hx=float(raw_input("ingrese paso de x: "))
> ht=float(raw_input("ingrese paso de t: "))
>
> funclst=[]
> x0 = xinicial
> t0 = tinicial
> for i in range(0,it+1):
>        x=x0
>        for j in range(0,it+1):
>                t=t0
>                f=funhomo(x,t)
>                t0=t+ht
>                print x,t,f
>                funclst.append([x,t,f])
>        t0 =  tinicial
>        x0=x+hx
> #print funclst
>
> gp = Gnuplot.Gnuplot(debug=1)
> gp.clear()
> plot1 = Gnuplot.PlotItems.Data(funclst, with_="points",
> title="Superficie")
> gp.splot(plot1)
>
> --
> Fernando Cladera <el....@gm...>
>
>
> ------------------------------------------------------------------------------
> OpenSolaris 2009.06 is a cutting edge operating system for enterprises
> looking to deploy the next generation of Solaris that includes the latest
> innovations from Sun and the OpenSource community. Download a copy and
> enjoy capabilities such as Networking, Storage and Virtualization.
> Go to: http://p.sf.net/sfu/opensolaris-get
> _______________________________________________
> Gnuplot-py-users mailing list
> Gnu...@li...
> https://lists.sourceforge.net/lists/listinfo/gnuplot-py-users
>

On 6/6/2009 11:55 PM Fernando Cladera apparently wrote:
> [[0, 0, 0.0], [0, 0, 0.0], [0, 0, 0.0], [1.0, 0,
> 3.1415924394448096e-05], [1.0, 0, 3.1415924394448096e-05], [1.0, 0,
> 3.1415924394448096e-05], [2.0, 0, 6.2831848757889894e-05], [2.0, 0,
> 6.2831848757889894e-05], [2.0, 0, 6.2831848757889894e-05]]

> I got a line draw and this
> Warning: empty y range [0:0], adjusting to [-1:1].


Which is a remarkably specific and accurate warning.
Look at the second element in each data point.

Cheers,
Alan Isaac

There was a bad indented line (t0 =  tinicial)... Sorry!
This is the code. I could add the plotting, but i couldn't draw the
surface.

def funhomo(x,t):
  return
eigenvector[0,0]*cos(wfrec*t)*sin(pi*x/(2*L))+eigenvector[1,0]*cos(wfrec*t)*sin(3*pi*x/(2*L))+eigenvector[2,0]*cos(wfrec*t)*sin(5*pi*x/(2*L))

it=int(raw_input("ingrese numero de puntos a obtener: "))
xinicial=0
tinicial=0
hx=float(raw_input("ingrese paso de x: "))
ht=float(raw_input("ingrese paso de t: "))

funclst=[]
x0 = xinicial
t0 = tinicial
for i in range(0,it+1):
	x=x0
	for j in range(0,it+1):
		t=t0
		f=funhomo(x,t)
		t0=t+ht
		print x,t,f
		funclst.append([x,t,f])
	t0 =  tinicial	
	x0=x+hx
#print funclst

gp = Gnuplot.Gnuplot(debug=1)
gp.clear()
plot1 = Gnuplot.PlotItems.Data(funclst, with_="points",
title="Superficie")
gp.splot(plot1)

-- 
Fernando Cladera <el....@gm...>

Hi everybody!
I'm new with gnuplot.py... I'll try not to ask a newbie question...
I'm now working on an engineering problem of differential equations. I
use numpy and I have to plot a surface, that is the solution of the
problem. A piece of code of the project:

def funhomo(x,t):
  return
eigenvector[0,0]*cos(wfrec*t)*sin(pi*x/(2*L))+eigenvector[1,0]*cos(wfrec*t)*sin(3*pi*x/(2*L))+eigenvector[2,0]*cos(wfrec*t)*sin(5*pi*x/(2*L))

it=int(raw_input("ingrese numero de puntos a obtener: "))
xinicial=0
tinicial=0
hx=float(raw_input("ingrese paso de x: "))
ht=float(raw_input("ingrese paso de t: "))

funclst=[]
x0 = xinicial
t0 = tinicial
for i in range(0,it+1):
	x=x0
	for j in range(0,it+1):
		t=t0
		f=funhomo(x,t)
		t0=t+ht
		#print x,t,f
		funclst.append([x,t,f])
		t0 = tinicial	
	x0=x+hx
print funclst

As you can see, this piece makes a arrange (funclst) with a list of
points (t and x) and the function (funhomo) evaluated in those points.
Here, you can see an output, for it=2 and hx=ht=1
[[0, 0, 0.0], [0, 0, 0.0], [0, 0, 0.0], [1.0, 0,
3.1415924394448096e-05], [1.0, 0, 3.1415924394448096e-05], [1.0, 0,
3.1415924394448096e-05], [2.0, 0, 6.2831848757889894e-05], [2.0, 0,
6.2831848757889894e-05], [2.0, 0, 6.2831848757889894e-05]]
The first element of each vector is the x. The second, the t (or y in a
plot) and the third is the z=funhomo(x,t).

I've tried to plot those points with gnuplot.py, but i can't!
If i use 

gp = Gnuplot.Gnuplot(debug=1)
gp.clear()
gp('set data style lines')
gp.splot(funclst)

I got a line draw and this
Warning: empty y range [0:0], adjusting to [-1:1].

However, i tried to export a "point list" and plot them with gnuplot.
But i got a plot of the points, and i don't know how to draw the surface
(the mesh between points). Any idea? 

Thanks! 




-- 
Fernando Cladera <el....@gm...>