3D surface graph in Linux

[ratem]

HI,

I would like to know if there is a away of simulating 3D surfaces graphs on Linux.
In particular, I do simulate 3D surfaces by moving the origin and
plotting a new curve without deleting the previous ones, but I would
like to plot the 3 coordinates, not only x and y.

[andrepereira]

Hello,
As you may know, the 3D graph object in LabVIEW uses ActiveX, which is not supported in Linux but you have a option:
Have you tried using the LabVIEW 3D picture Control Toolkit. Although it's not officially supported by National Instruments, you can download and use it in any existing LabVIEW platform, using the OpenG package provided on the link below.
<a href="http://zone.ni.com/devzone/conceptd.nsf/webmain/9672f024704de89086256ed100620a56" target="_blank">http://zone.ni.com/devzone/conceptd.nsf/webmain/9672f024704de89086256ed100620a56</a>
There are also some Discussions on this as well.
Regards,
Andre Pereira
Applications Engineering
National Instruments

[ratem]

Thanks André,

I am going to install and test it.

Bye for now,

Rogério

[ratem]

I've tryed it, but felt like a dumb, since I couldn't do the simpliest thing:
-Given a 3D array, plot it!!!!
Does someone has a simple example like this?

[Ben]

Not being able to take advantage of the stuff that runs unders W.... complicates this quite a bit!
In post #38 of this thread on LAVA
<a href="http://forums.lavag.org/index.php?showtopic=3046&amp;hl=irene&amp;st=30" target="_blank">http://forums.lavag.org/index.php?showtopic=3046&amp;hl=irene&amp;st=30</a>
has some examples I managed to produce for the 3d Picture control.
You would have to start with that or something like and work your way up.
4-D graphing would be possible by defining a custom skin but it appears you loose lighting effects if you go with custom skins.
I don't even want to think about transparency......
Keep us posted on how you solve this challenge.
Ben

[ratem]

I've managed to simulate a surface, but, besides normalizing&nbsp; (I
have values like 6789.90, 0.0897, 128.07 in each of the 3 columns), and
having no scales, it became too slow.

[ratem]

Dear Ben,

thanks for your promptly reply. I am analysing your example already. I
thought of&nbsp; drawing hundreds of small cones, since my surface is
actually made of hundreds of FFT peaks alltogheter. But I have to face
another problem: how to plot the scales?
Thanks anyway, life with LV under Linux isn't easy...