Graphs in a panel

Hi,
i am using Net beans as IDE and developing a small application.
where in that appplication gives out the defects or mismatches .
so i need to print them in a table . and i am able to print it in an table .
and even i need to display those defects graphically in another tab.
but i dont know how to display it in graphical(pie chart & bar chart) manner.
hope i am not confusing you.
thanks in advance
regards
lankss

JFreeChart from www.jfree.org.

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Chnaging input in a waveform graph from front panel in labview

Hi !
I am working with temperature sensors; I have several sensors to read simultaneously.
I want to plot information from different sensors in different plots and have the option to change/select the sensors in the a graph from front panel. For example, I have 8 sensors(please see the attachments_ front panel), A,B,C,D,E,F,G and M. Some time it could be possible that user want A,B,C in Tumor Graph or sometimes only A and B. That means the identity and the number of sensors could be changed in different times.
Now I connect only two sensors per graph (ref: block diagram) but the number and the sensors to be plotted in a certain graph can be changed, so How can I implement it ?
Any help or idea will be appreciated.
Best Regards,
Hasan Masud
CTH, Sweden.
Attachments:
random graph_front.jpg ‏260 KB
random graph_block.jpg ‏298 KB

Hi hasanma,
Well, you could expend the build array and add more inputs to it as shown below:
And individually select which sensor data the user wants to view as shown below:
Warmest regards,
Lennard.C
Learning new things everyday...

How can I set the graph on the panel as buttons?

Hi all,
I'm trying to control a camera by sending DO control signals and acquiring AI signals. After I grab a whole image, and show it on the screen, I want to set it as 2D array of bool controls. So that I can click certain pixels, to send next controlling signals which stand for the addresses. I also want to zoom in and zoom out functions, by which I can see the pixels (buttons) clearly. Can I implement that in LabVIEW? If I build a 2D array of buttons, I cannot get rid of the spaces between the buttons. I'm using LabVIEW 8.5. Any suggestion will be appreciated.
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My blog Let's LabVIEW.
Solved!
Go to Solution.

Hi Mike,
Thank you for your reply. The things I've done is using a 2D array of 64x64 booleans on the front panel to send the addresses, and display the 64x64 pixels image after acquired. What I want is simply clicking the image instead of the buttons. My image is an intensity graph, so I can have X,Y and Z values to display 2D array. I dont konw if a picture control can display a 2D array. Besides that, I also want to make the pixels different after I click them, so that I can confirm which pixels are pressed. A simpler way came to my mind is use 2D array of booleans to do that, change the color of them by the acquired value. So the array will by a picture. But the spaces between the booleans are on the way. So is there any way:
1. Use 2D booleans, and update the color of each button after required, and get rid of the spaces between the buttons. Since the buttons should be 1x1 or 2x2 pixes big, I want to find a way to zoom in them.
2. Or, monitor the coordinates of the mouse, and use a proper graph to display, which can be zoomed in and zoomed out, and become different when pressed.
Thank you very much.
Best wishes,
Bo
My blog Let's LabVIEW.

How can i edit graphs on front panel?

Hello!
My problem is the following:
I need a front panel, where i can edit the graph. It doesn't need to be very complicatted. It means, there is 5 steps. For example: It will control a thermal chamber, and it should give 25 celsius for 2 hours, then cool down until 2 hours to -40 celsius, 4 hours on -40, then back to 25 celsius until 2 hours, stay there for 2 hours, up to 105 celsius until 2 hours, 4 hours on 105 , 2 hours down to room constant, stay 2 hours there. But i need to be control the levels. The temperature levels, and the time periods. It's nessesery to control this on front panel. I've found a vi , which is reading in *.lvm files with datas x,y and then it's interpolating. But it is not setable after setting.
Please help me. Thank You very much!
Solved!
Go to Solution.

If you want to specify the profile graphically then you can use cursors to do it. An old example can be found here. You may find others by doing your own search (hint, hint).
Otherwise, you can simply use a multicolumn listbox to specify the indvidual profile segments, and a graph can be used to display the entered profile whenever the listbox changes.

Fix position of 3D graph in front panel

Hi I haev used 3D graphs in my VI but whenever I open my vi I see that the position of 3D graph has changed in my Front Panel and it takes a lot of time to rearange everything again. It also change the position of the other things like pics or Tab boxes. Is it something related to the resolution of the screen? and how can I fix it to not change because I want to use my laptop for a presentation and I would like to avoid this mess during demostrating my vi
Many thanks

Hi,
I don't know if it would help, but you can lock the psoition of front panel objects. Select the object and then select Reorder >> Lock from the toolbar:
-CC
"If anyone needs me, I'll be in the Angry Dome!"

How to data log graphs using front panel data logging?

Hello I have a VI that collects data from DAQmx thermocouple readings and graphs the temperature vs time using a while loop to collect data and graph. I have 9 control operators that define the correction factor of the thermocouples.
I want to create a datalogging using the option under Operations>Data Logging
When I retrieve the data the only information that is present are the control operators correction factors that I defined. The graphed data that was created is not retrieved.
Is there a solution to show the graphed data plots that were created on the front panel? They remain unchanged from the last run of the VI or blank if I open the VI without having ran the program.
Thank you.

This is expected for the Data Logging in LabVIEW. If you want to record the signla data, use the Write to Measurement File Express VI. Here's a link with a walk-through:
http://www.ni.com/academic/students/learn-daq/data-logging/
The Data Logging from the Operate Menu is for recording front panel control(s), as you have observed.
Mark P.
Applications Engineer
National Instruments
www.ni.com/support

Automatically turn on/off channels graph or front panel

Hello,
does anyone know if Labview is capable of selectiing what channels to view?
for instant during ablation testing. i would not like to select the last 3 channels
but during temperature response. i would like to see all channels.
is it possible or i have to manually click it on the front panel?
thank you in advance.

Use a property node to 1) set the "active plot" (the plot you want to mess with in the following properties) and then 2) set plot visibility. As long as you know which plots you want active, it is simple programming from there.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions
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How to draw graph by using the following data?

Hi,
The attachment is an icon on Diagram file the and its data on the Panel file. However, I hope get a graph on the Panel and don't want to show the data like in my attached file. From the examples provided by Labview, I know it can be completed, but I don't know how to do it. Could any one can tell me how I can do that? Thanks.
Attachments:
question_graph.bmp ‏189 KB

Hi,
Put a graph on the Front Panel : Commands -> Graphs -> Graph.
On the Diagram you can wire this graph to the waveform you want to see in your graph.
Hope this helps !
Julien

Set fixed width to legend in graph

Hello,
i have a graph on a panel that has an enabled legend.
Now o want to set the width of the legend to a fixed size.
For this there is the property Legend.Size.Width.
This property only works if Autosize is disabled.
The question is now:
It looks as if the size of the plotname-field is always the same and only the small graphic gets bigger?
But i want to increase the size of the visible plot-name.
How to do this?
Thx
Attachments:
LegendSize.vi ‏13 KB

The only thing I came up with is to leave it in Autosize, change the plot name to something that has the length you desire for the name field and then turn Autosize off and put in the name that the plot should really have. Like so. (see attached VI)
Attachments:
LegendSize.vi ‏15 KB

Print panel to selected printer

I am trying to use the NI library function "Print panel to printer.vi" sited at http://sine.ni.com/apps/we/niepd_web_display.display_epd4?p_guid=B45EACE3E9F956A4E034080020E74861&p_node=DZ52084&p_source=external.
The vi that I want to print is a graph that I must pass parameters to that contain the data that is to be graphed. I want to select the printer and printer the graph as a panel. The "print panel to printer.vi" requires that I give it the name of vi, which is fine, but it prints a blank graph because there is no way to pass the data.
How can I use this "print panel to printer.vi" yet still get the data to it? It was suggested to put the "print panel to printer.vi" inside the graph vi, but that does not work either. What
am I doing wrong?
Steve Hope

Dennis:
Here is the vi that I am trying to print. Notice that I am passing a bunch of things to it from the VISIBLE graph that is in the application. One of the things is the name of the printer that I want to graph to go to. Can you help?
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Print_Graph.vi ‏76 KB
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Programmatically changing the x scale range of xy graph

Hi,
from a subvi I need to access the x scale range of an xy-graph on the panel of the main vi. I tried the code shown in the pdf attached to my posting. How can I restrict the general property node for an unspecified control to a more specific property node that offers the property "x scale range"?
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Peter
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access_property_node.pdf ‏34 KB

You can use "To More specific Class" from the application control palette.
Of course make sure to handle errors gracefully. This is just a draft
Message Edited by altenbach on 09-18-2007 09:31 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
ToMoreSpecific.png ‏5 KB

WPF graph children z-order

I have a canvas added to a WPF graph's children in XAML to drawing various text blocks and lines. Later in code I add RangeCursors. The RangeCursors paint on top of the canvas, but I'd like the canvas on top. Is there a way to control this? I've tried both adding the RangeCursors at the end of the children collection and inserting at position 0, but the result is the same (RangeCursors on top).
Solved!
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Set the ZIndex of the canvas to a value above the default of zero:
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~ Paul H

How to set the number and width of divs of Graph?

Hi, everyone.
As the title, I want to design a virtual scope. And there is something I don't know
how to set about Graph. That is I want to set the number of divs of X-axis and Y-
axis with 10 divs of Y-axis and 8 divs ofX-axis. Additon, i also want to set the
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Thanks in advance!

There are two ways of doing it.
First, to do it offline, right click on the graph in front panel>> dropdown Menu select 'properties'>> Go to Tab 'Scales' and select relevant values for each axis
Or to do it programatically, create a property node ( as shown in attached pic)>> select property>> x scale range / y scale range>> change it to write>> create a control to it and you can set following attributes: Minimum, Maximum, Increment, Minor Increment, and Start of that particular axis
Hope this helps
Regards,
Dev
Attachments:
graph_scale.PNG ‏11 KB

How to bring the graph on front?

Dear all,
i am using 4-5 graphs on the front panel of my Vi on below the other.
On a button click, i am enlarging a particular graph by increasing its height and width. but when i enlarge it, the extended part hides behind the othere graphs on the panel.
Is there any way to bring that particualr graph to the front?
Thanks,
Ritesh

You can put the graphs on a Tab control. One tab for each graph. Programmatically switch tab is easy.
George Zou
http://www.geocities.com/gzou999
George Zou
http://webspace.webring.com/people/og/gtoolbox

[graph] not always showing data

First, I use CVI2012SP1 with the CVI2013SP2 runtime.
I´ve got the problem that the same program and version is running fine on my pc, but not on a pc of a customer.
The problem is that on my pc I can see the data, but on the pc of the customer there is no data drawn. As I use manual scaling I know that the data, which should be drawn, is right. The thing which bugs me most is that I also use a graph for other things in this program and there they always work.
I don´t know if this helps, but I also got the problem that autoscaling is not working for me on these graphs.
I can´t really make a cut down version of this, because it seems that this is only a problem for the graphs on a panel of many.
Some more information about the graphs. I got 4 panels with graphs on it. 3 panels are loaded just once and working flawlessly, but one panel I load as many times as I need and this got 2 graphs in it and these 2 graphs aren´t working as expected.
Does anyone know what this could be or could tell me what to try to find out what is goind wrong?
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Problem found and solved.
Before I used a graph to display the data, I used a stripchart and as I´ve changed the code I misplaced a parameter for the PlotXY function. So instead of putting the line style I put the line thickness as parameter and so the plots disappeared for line thickness 2.
This was a hard bug to find

Graphs in a panel

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