Re: Graphical Plotting Help Needed for Windows...

[martin_helm]

Jason Martin-13 wrote:
> 
> Good afternoon list,
> 
> Please forgive me this one time error should this have been asked 
> before, or this is in the wrong list.  If it is both, then I guess I am 
> screwed. o.0
> 
> I am trying to figure out how to get clearer plots out of Octave.  I am 
> using this m-file{http://www.thumbprintpro.com/math/fib.m}, and it is 
> giving me the following output: 
> http://www.thumbprintpro.com/math/OctaveOutPut.png .  While this is 
> adequate, it is difficult to see that this is a 3d image, and compared 
> to this output from Matlab, 
> http://www.thumbprintpro.com/math/MatlabOutPut.png, it is easy to see my 
> frustration.  I am trying to relieve my stress of having to log into my 
> schools slow remote desktops and do all of my math computations through 
> Octave, but the output is of such quality that I cannot insert that into 
> a report.  Also, it took 15 minutes to generate that image where Matlab 
> took 15 seconds.  I have been looking online for a replacement plotter 
> for use with Octave, but nothing I have found yet is working with 
> Windows.  It could just be that I lack the necessary skills to compile 
> some of these packages, or the knowledge of how to insert them into 
> Octave, I am unsure.  Can someone point me in the right direction to 
> getting opengl plots for Octave under Windows?
> 
> Jason
> _______________________________________________
> Help-octave mailing list
> address@hidden
> https://www-old.cae.wisc.edu/mailman/listinfo/help-octave
> 
> 

To get a somewhat improved 3d feeling without the need to install an
additional package
you can use 
backend("fltk")
before you call your script and then substitute your simple isosurface call
to

[F, v, c] = isosurface (x, y, z, f, 1.1, x);
p = patch ("Faces", F, "Vertices", v, "FaceVertexCData", c, \
  "FaceColor", "interp", "EdgeColor", "none");
colormap(copper(256));
shading interp
view(30,30)

this adds some shading in x direction.

Btw, jhandles gives at the moment the best results, because you can set
lights but
I have problems at the moment to install it, so I cannot directly compare.

- mh
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