Re: [Gnuplot-py-users] more gnuplot.py and pm3d with 4d data

[Michael H. <mh...@ka...>]

Marc Hodapp wrote:

> I get a colored 3d plot with x,y,z and z as colored values on the 
> surface. Somehow the val- values are not shown on the colored surface. 
> Is this due to the implementation of Data? Or did I misunderstand 
> something?
> [...]
> g.title('test')
> g('set pm3d')
> g('set term X11')
> g.splot(Gnuplot.Data(asd, inline=1))
> raw_input()
>
> All I got on the colored surface where values ranging from 0 to 2  
> instead of values from  10 to 30 .


I guess you also need the "using" argument to tell gnuplot to use all 4 
columns:

 >>> Gnuplot.Data(asd, inline=1, using=(1,2,3,4,))

General advice for debugging problems:

To see exactly what is happening, initialize the Gnuplot object with 
debug=1; i.e.,

 >>> g = Gnuplot.Gnuplot(debug=1)

This causes the Gnuplot object to print out each of the commands that it 
is sending to gnuplot.  Also create the Data object explicitly then ask 
it to print out its content:

 >>> d = Gnuplot.Data(asd, inline=1, using=(1,2,3,4,))
 >>> print d.content
 >>> g.splot(d)

The print statement outputs the same data that will be sent to gnuplot 
via the "inline" mechanism.

Now you know everything that is being sent to gnuplot.  If what you see 
differs from what you need to have sent to gnuplot, let us know the 
difference and we'll try to get you from here to there :-)

Michael

-- 
Michael Haggerty
mh...@al...