Create a 3D-graph line by line

[Reepicheep]

Hey there

Hope, somebody of you will be able to help me as I got the following problem:

What I`ve got is:

  - labVIEW 8.5

  - an AFM microscope. From there, the data of a force measurment is processed throug several steps (this all works fine), and as a result I get an 1D-array of 16 digits. What I`d like to do now, is that this data is insereted into 3D graph, so there is actually a map written line by line.

How can I do this best?

I already managed to create the 3D graph, but only with a newly initated array. So, it`s actually not written and stored line by line... Or said differently: how can I build this array step by step as the measurment runs?

Thanks in advance for ANY help!

Kind regards,

  Dave

Message Edited by Reepicheep on 09-23-2009 10:06 AM

Message Edited by Reepicheep on 09-23-2009 10:06 AM

Message Edited by Reepicheep on 09-23-2009 10:06 AM

[Ben]

You will want to build up your array in a shift register after each scan is acquired and then use the updated array to update the graph.

This link has an example to help with graphing.

Have fun,

Ben 

[Reepicheep]

Ok, thanks, this sounds like a good idea. But can you explain me how I`m creating this shift register?

I couldn`t find anything in your link...

Dave

[Stéphane K]

Hey,

Maybe you can just have a look to the following VI. It generates a 2D Array. Each loop iteration 16 data-points are generated, stored in the transposed array and then plotted on a 3D Waterfall chart.

Are you looking for an application like this one, or do you want to use a different kind of 3D Graph?

Best regards, Stéphane

[Reepicheep]

Well, actually it would also do it, if i would recieve a 2d-map, where the `height`of the points is shown by a farbcode. Or I use a 3D graph and display the projection only...

About the example you sent me: it sounds quite good, but I can`t open it, as I`ve got only labVIEW 8.5. Can you upload a compatible file?

greetings, dave

[Reepicheep]

ok, I created a shift register, but I got broken wires...

=> on the left side, I initialize an empty 1d-array wich is then merged with the 1d-array containing my data... so at the end I recieve an 2d-array which I can`t connect to my shift-register (not the same dimension).

How can I do this, that the array is `growing`with each scan line?

Thanks again in advance for your help.

Kind regards, dave

[Ben · Accepted solution]

1) init the array as 2d

or

2) right-click build array and select "append".

Ben

Quoting Mike's old signature

"After all he's not a tame loin." Mr. Thomlas

[Stéphane K]

Hi,

I have forgotten that you are using LabVIEW 8.5, I think this 3D Graph is not available in your version. In the attachment you will find a print screen of both the front panel as well as the Blockdiagramm. The Graph and the Array are refreshed each Loop Iteration.

Best regards, Stéphane

[Reepicheep]

Ok, everything is working now...

Thanks to both of you. At the moment, it`s Bens ìdea that is working, but maybe our boss will buy labVIEW 9 and then we`ll see if I can make some changes with Stepane`s input...

Thanks again and have a nice weekend,

     Dave