3D mesh plot

Hi there
I want to create a mesh plot using 3D co-ordinates (x,y,z) obtained from motion capture devices. Now the problem is my data output from the motion capture device gives me all three co-ordinates x,y and z as a 1D array whereas if I want to plot any 3D graph in Labview it requires x and y as 1D array and z as 2D array. I am collecting all three co-ordinates in real time as a 1D array. Is there any way to solve this?
Thanks guys
Jolanta

Hi Jolanta,
You can use the Build Array function to transform single points of data into a single element array equivalent. To transform a single element into a 2D Array, we can call the Build Array function twice.
Alex Thomas, University of Manchester School of EEE LabVIEW Ambassador (CLAD)

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Large black regions obscure CNiGraph3D plots

I am trying to plot 3D mesh data in dynamically created CNiGraph3D objects within a modal Wizard window in an MDI application. The Wizard window is a CPropertyPage object within a CPropertySheet (in Wizard mode).
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Dear David,
The same thing kind of happened in HiQ
This issue is likely related to your PC's video driver. The 3-D graph in HiQ 4.x for Windows leverages OpenGL, a 3D graphics standard that can rely either on your video hardware or software.
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Kind Regards
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3d Mesh Multiplot

Hi guys,
I'm using Labview 11 and I struggle plotting multiple (x,y,z) Signals in in ONE 3d Mesh Plot. I've found the following post: http://forums.ni.com/t5/LabVIEW/3D-multiplot-mesh/m-p/129413/highlight/true#M77824 but the VI is written for LV 5 and therefore I can't open it. Do you know any solution for that problem?
Greetings,
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This thread is an index to 3D examples.
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Hello Phil,
As you mentioned, CVI provides a control for 3D graphs in the CWGraph 3D control. This control does not allow for 3D bar type graphs.
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Dynamically build graph

hi guys ,
I am trying to update a 3d graph dynamically, now its easy to plot the 3d graph when all the values are know . In my case ,check the vi, i have three axis distance wavelength and power. The wave lenght and distance are fixed that is i am taking the wavelength from 1596,35 - 1596,95 and distance from 33572,649 - 34085,735 which in the vi are included as contants .. the power i am measuring from the txt filed which i have attached. Now i want to update the graph in the for loop when the values are being read from the txt file.
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Solved!
Go to Solution.
Attachments:
3d.vi ‏34 KB
power.txt ‏356 KB

Hi nolsqn86,
You wired an empty constant to the inner mesh plot helper.vi - so, the "3d mesh 2" didn't receive any data at all.
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Alex
♜♖ LabView 8.6 - LabView 2014 ♖♜
Attachments:
2013-05-09_3d_rev2.vi ‏127 KB

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I have 3 vectors X, Y and Z, that I can plot using 3Dsurface graph and change the property node to Plot3DMesh. I want to get all the 2D Mesh data that LabVIEW generated to plot the surface. Is it possible ?

You might try the Property node of the 3D graph. You might have to decimate the array that you get from the Data property.
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How to Plot 3-D Mesh

In attached data.xls, there are 3 layers of data
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Attachments:
XYZ_Plot.vi ‏117 KB
data.xls ‏1 KB

Hi huang256,
Here I stated something about the function "Read from spreadsheet file.vi" and .xls files. And if you would read the help for the function you can see that it really needs a text file and not some binary file as Excel produces.
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Flexisign pro won't cut/plot .eps

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Well like drop shadows, inner glows, feather any of the photoshop effects anything that has ti be screened that is reproduced in process or halftone etc. gradients, gradient mesh that kind of thing.
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Getting clean mesh overlay on 3d graph

First let me say that the new 3d stuff is much better than the old cw graph stuff.
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Attachments:
3d graph.PNG ‏152 KB
3d graph.vi ‏54 KB

Or, you could make use of the first control.
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Plot in Mathematica

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Solved!
Go to Solution.

Unless you can pass in parameters when you launch your workbook such that that they allow you to input the lines of code and run the code, you won’t be able to do what you are trying to do with System Exec.Basically, if Mathematica gives you the ability to do what you want in command prompt then chances are you will be able to do that with System Exec.
Some programs have an ActiveX server (Ex. Word and Excel). Using the properties and methods available with the server you can make changes to the document. If Mathematica has an ActiveX sever you might be able use it to accomplish what you are trying to do. However, you will have to know which methods and properties are available and how to use them.
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Arham
Arham H
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Need 2D and 3D plotting api info

Hi all,
I am looking for a plotting api to purchase to use in a java applet in a browser. I have looked for a couple of days now and can't seem to find what I need. I need it to plot 2D and 3d data sets of around 100,000 points. The comercial product we are currently using is great and easy to use, but it just can't handle large 3D data sets.
thanks in advance for any input!

Sounds like you need Java3D. But I'm not sure exactly what you're doing. There are convertors out there that will convert post data into meshes and what not. But I'm not sure if you're trying to do this in real-time or what.

Matlab plot integration and interaction on a front panel

Hello all,
I am making slow progress in the direction I have taken and was wondering if anyone had some experience/ideas with this. In my application I have the need to mesh a grid optimized to the geometry defined by several boundary points. For this purpose I found a MATLAB code developed by MIT which I would like to use. Right now I can define these boundary points in Labview, then call the matlab exe with this information and have the meshing code come up with a grid. I can get the grid point coordinates back to labview, but here is where the problems start. I am looking for a way to plot these discrete points, not as a curve but as separate dots or 'x'. Also, I would like to be able to click on a point and have Lab View read that points coordinates and store it in a variable.
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There are a number of examples that ship with LabVIEW to show you how to do plotting. Open the Example Finder (Help -> Find Examples) and in the tree select Fundamentals -> Graphs and Charts. Also take a look at using cursors for graphs, which will give you coordinate values.
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Hello, I have recently taken up JavaFX in hopes of creating a general purpose graph generator for use with large data sets. However, I have noticed that after ~30,000 or so plots, the graphs take a while to render (meaning not seemingly instantaneous). I was hoping to get at least 100,000 without experiencing this delay. Could it be that I am doing something wrong? Or are the XYCharts not made to handle such large plot counts? I have googled around and the only suggestions I have found and tried were to use the Task class or to put the code wrapped in a Platform.runLater call to put it on the JavaFX thread. Thanks in advance.

100,000 is lot of plots, so there may be an upper acceptable performance limit that the standard JavaFX charts can handle which is lower than that. The standard charts may not have been designed with that size target dataset in mind.
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https://wikis.oracle.com/display/OpenJDK/3D+Features
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https://javafx-jira.kenai.com/browse/RT-20405 "Improve Path rendering performance"
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3D Meshing with XYZ using a 3D curve graph

I am currently trying to real time plot X-Y grid co-ordinates against 'z' depth (for mapping a lake). I've got a 3D curve graph plotting XYZ points but I need it to mesh the sub-surface to create an image of the lake bed. The 3Dmesh example talks of a w-vector which is visible when you enter the 3Dcurve vi though I don't know what to do with it. Any help would be appreciated.

Nothing that advanced I'm afraid, I'm using LabView 6i for the first time so no G math code. I've simply got three strings of data latitude position, longitude position and depth for the outer perimeter of a lake. These are read into a 3D curve graph and plotted with 1)just XY and 2)XYandZ as points within the graph. I can get these joined up as shown in the attached VI and by double clicking on the 3D surface VI I can change the property node labelled Plot3D curve to Plot3D mesh. However when you do this (when it doesn't come up with an error) it plots a random mesh, not the intended squares that I am looking for. Ideally I want it eventually created a 3D image of the surface and sub-surface of the lake as the data is fed in as XYZ every second in r
eal time. I've seen what it's capable of in the graph properties; when you click add plots in the plots tab of properties it shows exactly what I'm after as some default function
I've attached what I've done so far (not very impressive I know) but hopefully it illustrates what I am trying to do. Thankyou
Attachments:
3D_Plot_test.vi ‏56 KB

How can I represent more than one plot in an only one chart?

Hello everyone,
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Since you are dealing with waveforms already, I think you actually want to have an array of waveforms to go into your chart. You also need to map the plots to the scale that you want to use. You can do that in the plot tab of the properties window.
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3D mesh plot

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