graph waveform xy

Similar Questions

• graph waveform of several sensors

  Hi, I receive data from 50 sensors with a microcontroller. Data from the sensors are stored in LabVIEW in an array of cluster, each cluster containing a unique sensor info. I need to display a graph of trends of the curve of value 3 of all sensors, so that each sensor should be represented by a color. The data are updated every minute. Can someone help me please?

  First of all, I'm sure you want a graphic, not a graphic.  A graph keeps a history.  A chart shows just the last thing you wrote for her.

  Secondly, to make the building of the waveforms within the loop FOR.  Makes things MUCH simpler.

  

• Graph waveform repeats with each iteration of the loop

  Hi guys,.

  I got some great responses from you many already, so I hope you can help me once more!

  I try now to simply take a voltage that is measured by a sensor, I tied to AI1, and I built a graph of very simple waveform using a DAQ assistant. I have the setup terminal to CSR, the acquisition value continuous sample mode and read samples and rate game to a control on the Panel before which I can control myself. All this is a while loop that is needed to collect data over time.

  However, the problem I have is that for each loop of the loop, it seems, to reset the graph, so my x-axis never increases over time, ideally I want it to do is to show results through from 0 to 100 on the x-axis to say, and then, when it comes to 101, he will start again on the extreme left of the graphic to the right to a crossing another 100 points given) (there's a term for this, but I forgot, sorry!). To be honest, this kind of logic like everything in the loop will be restarted, but after trying to chart the loop it does not work, so I'm fresh out of ideas.

  I think I might have to do is to manually build segments of data acquisition (DAQ mx) and have only certain parts of them in the loop, although I can't be sure. I tried various examples and online on the database of NOR (including tension-int acq & graphic clk which works well in the examples, but not at my request) but no luck for now

  If anyone can think of what could be the problem, then please let me know. FYI the sensor is optical fiber if it makes a difference. I have attached the file VI that I did does not really...

  See you soon!

  Ritchie

  Since you use a chart there is no way to fix it. If you choose to go to a XY chart you could solve this problem. See the example below.

  

• Graph waveform control - limit lower and upper limit Autoscale

  The graph is a waveform their a way to define the lower limit of the graph Y to zero and then have it autoscale the Y maximum limit as a percentage of the maximum value of the graph (150% for example)?

  Direction of examples or read about a starting point would be great!

  Thank you

  Joe

  Ireland

  Turn off autoscale and put the max with a property node based on the max of the data table.

• Type of input data for the graph waveform

  Waveform graphs do not change the type of input data according to the wire. When I create a new chart that is set to double data type and does not change what I connect to waveform, so I copy graphics to another VI for appropriate indication. But the graphics don't accept complex data. How can I change the type of input data?

  The graphics in vi you have posted behave properly on my machine.

  Change according to the type of data that connect you to them.

  Maybe something wrong with your installation?

• How can I make graph waveform or file with two different values of DBL Dynamics excel?

  As described in the question, I have two sources dbl from a load cell and linear actuator (from remote). I want to do a curve of load/displacement of the readings of the strength of the load cell and the readings of travel of the linear actuator. Load cell generates an analog signal that can be acquired by data acquisition and the actuator is delivered with a Board and a program of VI to control speed and measure the movement of the actuator at a sampling frequency of my choice. Is it possible that I can do a VI where he continues to collect data and build the chart I'm looking for?

  I think I see where the confusion is.  Looks like your trip data do not come directly from a sensor (LVDT, etc.), but from the control software.  If this is the case, you're stuck sort with a timing of software, that will not sync at all.  Still not really sure what the entire Setup is - but if you do not have access to data of travel other than VI control that drives the actuator, you have limited options.  It depends on where these data comes from and how it is treated.  My initial comment assumed medium of moving a sensor in another Board (Non-OR).

  You can absolutely use a shift register data (or the node property history given in the table of waveform - as someone else suggested) to save the data in the file.  Use the entry in the File.vi worksheet.  There are examples that show how to do this.

  I would start by trying to start the process (movement and data acquisition) as close to simultaneously as possible, let them operate independently, but at the same time, then after you have some data you can see if they are synchornized well enough for your application.  If you put them both in the same loop with while avoiding (wait ms) you will get incoherently timed data of these two sets of data.  Better to use examples of hardware when clock you can.  If your test article moves very slowly, it may not matter how you do it.  If it does not quickly move, will be discussed as your data of force tip line upward with your data points in moving closer in time.

  Good luck!

  Kurt

• Can I do a waveform graph view more samples currently read?

  I have DAQ 17 channels at a rate of 500 samples per second read and then write in a PDM file and a few gauges, a waveform graph.  I'd like to graph waveform to display more than the samples that are currently read, I want to only show the last 10 seconds worth of samples.  How can I accomplish this?

  I have attached a picture of the relevant section of my VI. If you need more information about the VI let me know.

  Thank you!

  Hello

  As mentioned by Smercurio_fc also, you can use the shift register, etc. of functional global variable or use waveform table and increase the length of the history of the chart.

  Kind regards

  Leila

• Graphic borders problem

  If the background of graph(waveform/XYgraph) including the grid (major and minor) is set to white and his image of control is used in the report print top and left borders are filled with lines, while the bottom and right are not.can it be filled on all sides or can they be dismissed on all the sides.find the image attached to the chart image. Attached the vi is it.iIm using labVIEW 8.5.1

  Simple

   

   

  While trying to change the background colors, try to use the foreground as the transparent color and the background color white. I have it attached for your reference.

  --------------------------------------------------------------------------

  Subramanian. A

  Engineer

  CAPTRONIC systems

• change scale wave numbers in letters

  Hi I'm new to this forum and I have a question, I can't fix on my own.

  For an assignment for school, I need to create a program that can tell the diffrence between English and Dutch turned out. I want to solve this problem by comparing the precise amount of letters used in the music. for example, the letter e on average fills 1891 the teksts of the duch % and 12.7% of the English teksts. I think I can make it hollow comparison system. There is something that I can't find in any walktrough tutorial. I do use the waveform graphs that I'm going to compare later. I have all the letters inscribed on the x-axis and the corresponding percentage, it lies in the text on the axis y. The problem is, right now the numbers are displayed on the x-axis... 0 to 26 to be exact. Is it possible to turn those numbers into letters? in the affirmative. How?

  I don't think that you can do.  I know that, even in some examples, the x-axis are just hidden and there are floating just text (stacked bar graph Waveform).

  I remember helping a friend out with that because there was another example that made it seem possible.  We have searched a bit and found nothing until we realized that they also simply hid the axis x-axis and written in the text at the appropriate places.

  I would be interested to know if it was possible, though.  Because the properties of the range of the x-axis for min, max, start, and increment all the double I guess that's not good.

• create the formula of the shear stress

  Hello world!

  I want to create a formula to use it later to hold full and derived from this equation. The equation has some constant D = 0.026 m; L = 3 m and some other constants that are found at the end of the race in vi. These constants are numerical values that are "delta_P_ta"; 'delta_P_os '; 'U_m_os' and ' w = 2 * pi * freq.» I want to get is;

  Shear_stress_wall (t) = (delta_P_ta * 4/D/L) + (delta_P_os * cos(w*t) * 4/D/L) + (1, 2 * w * D * U_m_os * sin(w*t)/4)

  where t is the time in seconds and the wall of the shear stress is a function of sin, cos, and t. Then I'll take derivative of this equation with respect to t.

  Please help me! Is it possible to generate a string and it is possible to use this the formula string to hold its integral?

  Is it also possible to enter this equation graph waveform based on time?

  Please help me! Thank you very much!

  
  

• Prevent editing of legend

  Okay, that's annoying me now.

  I have a graph of waveform in my current application. I use a lot of control by programming so that it can adapt and displays just the way I like it on the front panel (the application is highly customizable to the user). Graph waveform displays any number of parcels from 1 to 12 at the same time and automatically adapts to sensible things as axes labels and the size of the legend to show these plots I want to show.

  Now. I don't want the user to be able to change the name of the plots in the legend. However, if I use the legend property disable, this disables the entire legend having for result the user not being able to change the etc. style/color/symbols of conspiracy. As I need to maintain this level of customization should I so keep the legend turned on, but somehow stop them from being able to change the name of the parcel.

  I can't detect changing the name of the plot by program, so I can't restore it if the user makes changes. So I'm stuck.

  Any ideas anyone

  

  What you can do is to place a box of decoration on the part of the name of the legend.  Of course, who would hide the names.  But if you use the brush and paint color selector and select for Transparent and bet, decoration, now it will be invisible and you can see through it.  At run time, any action cursor will act on decoration rather than the names of legend preventing a person to interact with it.

  I don't know there is a way to detect changes on behalf of the plot by program.  At the beginning of your program, you can browse the plots and create an array of all the names.  During running, you could periodically to do the same and compare the new array of names to the old name.  If they are different, you know you need a change and you always stored previous name for change he restores on.

  However, I would go with the method of transparent box to prevent changes.

• How to connect a cluster of berries to a waveform graph

  I'm trying to reproduce the pattern-block which is attached to this issue, but I don't know how I connect the waveform to my clusters of berries. I get an error that "the type of the source is table 1 d of cluster of 2 elements. The sink type is 1 d doubles [64-bit real (precision ~ 15 digits)].

  You need a chart xy, not a waveform graph.

  (Remember also that this table index is resizable. You only have a single instance. Your photo code is old, ~ LabVIEW 4.0 or MORE)

• missing samples in the waveform graph

  Hello world

  When processing a file .wav into pieces, I noticed that there are missing samples on the waveform graph where two pieces must be met for the display. What could be the cause of this? Any help appreciated. Thank you!

  Milan

  Your method of reading in pieces in a for loop is create a table 1 d of waveforms with the tunnels of automatic indexation.  It is as well as what you have the data appear in different plots.  I don't know if that's what you want.

  But if this is the case, the problem is that you get to the last point of the first plot, and the first point of the next parcel is a different value.  Because they are two different plots that you do not get the line to join them, as you do between points that are part of the same plot.

• (Multi ^ n) draw graphs of waveform

  I'm using LabView 8.2 and I need a graph of waveforms non-sinusoidales twenty bunk on this one (actually two waveforms taken ten times each, so - what counts, but no, I can't just average to them).  With the help of table build to make a standard multiplot with Express waveform graph does not, however, apparently because the VI express can handle only two waveforms at the same time.

  Suggestions?

  Hi DJDDA,

  right click on "table of generation" before the chart and select "concatenate entries.

• How can I change the data used by a graph of a waveform depending on which tab is active?

  Hello

  First of all, I want to say thank you in advance!  Let me describe the situation a bit.  My front panel VI (see attachment) has a tab control and on each tab of the window, I have a graph of intensity with a free drag cursor.  On the tab control window that I try to display the row or column of data where the cursor is, I can do this for each in the intensity chart individually.  I'm trying to clean up the block diagram a bit and instead of using 4 waveform graphs, I want to use one, can the data that is displayed in the graph of the waveform are associated with which page is active in the tab control.  Is this possible?  And how can I do?

  Thank you once again,

  ~ Daniel DeWitte

  Thread just the terminal tab to a case structure, switching data going graphic terminal

  (Sorry, message by phone, can not look at your code...)