Re: Plot using surf/mesh command in GNU octave

[Sarah]

Thanks Ben!!


bpabbott wrote
> On Aug 15, 2013, at 7:16 AM, Sarah wrote:
> 
>> I want to plot a 3D plane in GNU Octave using the surf/mesh command.
>> 
>> I have following data e.g
>> 
>> a= [ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 10 11 12
>> 13
>> 14 15 16 17];
>> 
>> b= [ 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001
>> 0.001
>> 0.001 0.001 0.001 0.001 0.001 0.011 0.011 0.011 0.011 0.011 0.011 0.011
>> 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011 0.011];
>> 
>> c= [ -0.88 -8.87 -0.86 -0.82 -0.77 -0.71 -0.66 -0.62 -0.57 -0.54 -0.50
>> -0.47
>> -0.44 -0.42 -0.39 -0.377 -0.36 -0.89 -0.88 -0.85 -0.81 -0.76 -0.71 -0.66
>> -0.61 -0.57 -0.53 -0.50 -0.47 -0.44 -0.42 -0.39 -0.37 -0.36];
>> 
>> I could plot it using plot3 command..
>> 
>> But how should I plot it by using surf/mesh command in GNU Octave?
> 
> 
> 
> a= [ 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 ...
> 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17];
> 
> b= [ 0.001 0.001 0.001 0.001 0.001 0.001 ...
> 0.001 0.001 0.001 0.001 0.001 0.001 ...
> 0.001 0.001 0.001 0.001 0.001 0.011 ...
> 0.011 0.011 0.011 0.011 0.011 0.011 ...
> 0.011 0.011 0.011 0.011 0.011 0.011 ...
> 0.011 0.011 0.011 0.011];
> 
> c= [ -0.88 -8.87 -0.86 -0.82 -0.77 -0.71 ...
> -0.66 -0.62 -0.57 -0.54 -0.50 -0.47 ...
> -0.44 -0.42 -0.39 -0.377 -0.36 -0.89 ...
> -0.88 -0.85 -0.81 -0.76 -0.71 -0.66 ...
> -0.61 -0.57 -0.53 -0.50 -0.47 -0.44 ...
> -0.42 -0.39 -0.37 -0.36];
> 
> [x, y, z] = griddata (a, b, c, unique (a), unique (b)');
> 
> surf (x, y z)
> 
> 
> Ben
> 
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