Anyway do not draw data points as nodes on a line chart?

Similar Questions

• line chart with a single point of data not displaying not

  I work with the line chart and I am facing problem
  (1) if I get a data with a single point to draw, the graphic is not
  the graphic line required at least 2 data raising the graph appear
  How to make a graph to display when I get one record in my
  data provider.

  I'm housing one gettong point (x, y) in a single record.
  so this table does not appear I need two points, two points (x 1, y1) and
  (x 2, y2)
  y at - it a solutioin to draw the line chart with a point (x, y) and
  show some points in the chart?

  Looking forward to hear from you guyzz, thanks for looking into it.

  Thank you

  I tried in IE and Firefox - everything is OK.

  What version on FP for IE and Firefox are you using?

• Numbers - graphs and charts - how can I add notes to individual groups of points of data or data points in a series.

  I use a 2D line chart to show the status of my weight loss I will give my doctor.

  

  I want to select a group of data points, or individual data in the notes to table and place the points or the labels on them so I can identify things like water weight loss, the consumption of food and splurges, and so on.

  Thank you, Eric

  There is no such feature.

  You can, however, add a column to the table where you enter the data and make this new column 'Notes' or 'Description '.

  You can also use the arrows and other graphic elements in the menu "Shapes" to highlight specific items of interest.

• Graph XY lasso data points

  Hello. I am looking for a way to draw several XY cursors, then use a lasso (like paint or photoshop) tool to select a subset of the sliders.

  Lasso would allow the user to outline to draw a region with the mouse to select cursors within the lassoed area.

  Labview graphics can do this natively? Or maybe someone knows an elegant solution to achieve this?

  Hi Marksyn,

  No, that behavior is not native in LabVIEW.

  First off, the selection can be rectangular, or should it be a "freeform"? The latter will be much more difficult to write, but it could look like this.

  Build an event structure and case of mouse event down / mouse upwards (to keep track of when you press the button) and mouse move the XY graph. In the case of mouse move, LabVIEW returns the coordinates of the mouse control panel each time it moves. For the XY coordinates, use a node to invoke the graph with the method "Panel of XY coordinates." Make a list of all the XY coordinates until the mouse button is released. This table is your free form boundary. The tricky part now is to get a list of the "sliders" (or do you mean data points?) included in this limit. Let us know when you make it that far.

• Line chart of several series with staggered data points

  Hello

  App of Hillary graphic sample includes an examples of charts and how to handle null values.

  https://Apex.Oracle.com/pls/Apex/f?p=36648:55

  I came across a scenario which goes a step further. If you have a series with a set of data points and another series that overlap, where a few data points are missing, for example:

  create table graph_lines (series number, thedate date, thevalue number);
  insert into graph_lines
  select 1 series
    ,add_months(trunc(sysdate,'yy'),rownum-1) thedate
    ,log(2,rownum) thevalue
  from dual
  connect by level <= 12
  union all
  select 2
    ,add_months(trunc(sysdate,'yy'),rownum-1)
    ,case when mod(rownum,3) =0 or rownum =2 then log(3,rownum) end
  from dual
  connect by level <= 12;
  

  I get the case where he's going to draw a line between the points that are next to each other, but the gaps it will display just the point

  

  Https://apex.oracle.com/pls/apex/f?p=73000:35 image

  I have no doubt a single this is the expected behavior, but I would like to know if anyone has any ideas on how to connect the dots.

  I thought about a snazzy model clause generates middle in my data points might work, but this seems heavy handed and a little scary.

  I thought that maybe there is a graphic solution?

  APEX 4.2.x

  Scott

  The idea of 'Null' removal was not all that possible. After testing it out, I found apex will be always generated empty points. Explicitly define the XML to have only the data points with values does nothing either.

  Because I thought it was a really interesting problem, I was wasting so much time on this :-). I was side on the reference guide and the user, modify the XML again and again and again.

  I hoped that, by defining a second category axis and set regional and datetime parameters, change of the shaft in one type datetime and specifying a main grid with every month, the table would be plot my data on this axis. Unfortunately, it seems as if this is ignored - a very frustrating experience. Anychart would just keep trace points with its own calculated intervals.

  Ultimately if I stumpled on a sort of difficulty, although I'm not sure how good it would be. There is a setting that you can set by using the custom XML part that ignores the missing data and the values of interpolation. It works well, but it always displays labels.

  https://Apex.Oracle.com/pls/Apex/f?p=11031:4 apex_demo/demo

  AnyChart | [AnyChart 6.x] How to connect mind lines...

  node - reference XML - AnyChart.Com Flash Chart Component

  With all these nodes, is it easy to miss what you need... It's a bit weird, but who "ignore the missing" points, you must set the value to "false"? :-)

• Graphical waveform data points, the performance impact to no.

  Hello

  I searched the forum, but I have only partial information yet about this behavior of graphics WF.

  I have a TAB control on the façade, and a TAB page contains a WaveformChart. I traced points with speed of 0.5 Hz, and I have 8 (curves) plots on the chart.

  I would like to have a lot of history, so I put the length of the graphic history to 44000.

  Everything works as expected, but I see some sluggish behavior, when I click on another TAB page and return to the page of the TAB where the table.

  In this case, the appearance of the graph takes about 1 to 2 seconds. This isn't a big problem, since the user typically controls the last minutes of ~ 10 (X-autoscale deactivation and change left "border" time). When this small amount of data points are visible on the graph, the new TAB page is fast after the click of the mouse. When several hours of data is presented, it's slow.

  I guess the main reason for this behavior, it is that, when I switch back to the graphics TAB page, the OP system has to re - draw a large amount of data points, and it takes a lot of time?

  I'm curious what is the 'best practice' in such a scenario? Shell I store data in a shift register and use an XY graph (I actually have data points such as the double and the corresponding time stamp, there are small fluctuations in time, so I need all THE timestamps)? Would it be useful? So I could add the new XY data point in the array in the register shift, and I redraw the graph at each new stage?

  Thanks for the tips!

  I don't know if this applies to your situation, but sometimes the LV refreshes no lights front panel which are not visible on a tab page that is not in front. Table has its internal buffer, but I have no idea how them redraws is managed at many points to accrue though not.

  A graph redraws the data are written on it because you have to write all the data each time each time. With SHIFT register approach the graph would only see the most recent data when it becomes visible, so it seems that it needs to be adapted.

  Another thing: your chart or table has no 44000 pixels along the x axis. LabVIEW will reduce the number of pixels to display the data. That takes some time too. Using the registry approach change, you can manage the data introduced to the 500-1000-2000 pixels will display your chart. This eliminates the need for BT to do and you can order the method: on average, decimate, sliding window and so on.

  I'd go with the registry to offset and graph.

  Lynn

• move the data points on the waveform display

  Hello

  No idea why the waveform display to my VI has shift the data points? The third tab of the screen does not display this problem. I took a video of what happens to better illustrate what I'm talking about and attached my VI to identify the problem.

  I am currently a sample of data from a DAQmx and storing in a queue until data backup button. Everything works well, but the problem is the display of actual data, which, although sense points, it shows move in a small area around where they are drawn in the first place. It happens even when I erase the visible data and restart the collection of data, as shown in the video.

  Thanks for any help you may be able to provide.

  Guy

  The amount of data you draw? If you draw a lot more datapoints that there are pixels on the x-axis of the graph, you can get peaks that appear to move because of graphic interpolation LabVIEW has to do.

  Mike...

• Is is possible to add a data Point to 'Stand hours?

  Hello

  I tried to add a data point to my hours of support in the application of health. I discovered, that 'stand hours' is the only category where the button "Add data Point" is missing. What is a possible way to add hours on another way?

  I'm not allowed in the place where my watch at work, where I am standing approximately 11 hours. Caused by this, I am not able to reach my goals.

  Hello

  It is not currently possible to manually add the credit toward the daily goal of Stand to your Apple Watch.

  If you want to suggest that Apple considers adding this as a new feature, you can do it here:

  https://www.Apple.com/feedback/watch.html

• VI do not transfer data from the instrument.

  Hello to all who are interested.  I'm working on an instrument driver for an Agilent D3000A generator of signal (E4432A) trying to get the generator to sweep the amplitude of - 30dBm to-75dBm and then come back in a loop.  The loop is in a structure of the event and is called by a switch on the front panel.  When the switch is selected event triggers and loop information is passed to the VI.  The problem is the 'Sweeping Steps' VI does not use data from the number of points in the sweep and pause at each time and the tracks of the loop as the amplitude is just switching between the min and Max amplitude levels.  But once I have stop the generator program will continue sweeping (only in a sense) but the correct time and the number of points.  When I use the spy "measurement and Automation Explorer" program AND I do not see that the data are transferred in the instrument.  I don't know if the Subvi the execution order is correct and was amazing if someone could take a look and let me know if I have them in one order incorrectly.  Could not find an example of this type of program examples of the driver so there is little help.  I joined the program and the driver of instruments for your comment, then please take a look and send any information you think will help me to get this working properly.  I have also tried to run the single sweep mode sweep and have just the change of direction for the sweep to the other side of the ramp, but I still get the same results.

  The generator has 15th and ONU3 options.

  I, m using LabVIEW 2010 on a Dell Dimension 2400 running Windows XP and service pack Version 5.1.2600 Service Pack 3 Build 2600.
  Please let me know if you need other information.

  Thank you

  Just for the short term, right click on the structure of the event, select Configure the events managed by this case and uncheck the lock front panel.  Also, I don't know if you caught my edit.  I think your problem is your expectation (or lack of).  At your expectations to be slightly more than the number of steps to multiply by the pause time.  You must leave the instrument perform its scanning after all.

• How can, during the collection of data, start a new column in my table every 100 data points?

  Hello! I have a problem with my data - I get in a wide range of 1 x 1000, but it's the repeated measures, each taking about 500 data points. I want to break this table for this data string start a new column in my table every 500 points given. I don't know how to do it-please help!

  datacompiler100 wrote:

  Hey thanks for the sponsor and the first off I must apologize for the State, I am attaching my VI. I put the part of the VI that I am working on (my team has access, so didn't post everything here) and also attached the data file (when just written in a spreadsheet file, not through the attached VI). I want to convert the long row of data and then start a new column every 50, 100, 5 points (user-defined).

  Using the data from the file, you can reshape everything simply (as you already!), followed by transposition (since you want columns instead of rows). 2D arrays must always be rectangular, so the last column is filled with zeros if necessary. Is that what you want?

  

  Of course if you try to add a new column in a file, that will not work. You can only add lines in an existing file because of the way the data is organized. To add columns, the entire file must be read, intertwined and all re-written new data in the file.

• Sampling rate - too much data points

  Hello community,

  I use a sensor signal strength of pressure on DAQmx labview through 2014. My rate from the hardware synchronization function is 50 KHz. The samples per channel of timing and read screws are the same set to 5 Khz when the channels are a continuous sampling. The problem I'm having is that when I run labview for a few seconds, say 5 seconds, I'm half million points of data. I tried to run for 10 seconds and points were more than a million where it is difficult to analyze. I think that the vi generates too much data points and the buffer is large. Am I wrong? Can you please help me solve this problem?

  Kind regards

  Mike

  

  You are now ready to learn a little of the power of LabVIEW and data flow programming.  LabVIEW is an inherently parallel language - two loops can run independently and in parallel, allowing you to make time-sensitive (such as sampling data) and a lot of time (such as data logging and tracing) at the same time, using queues to pass data between the loops and ensure the buffering required.

  If you open LabVIEW and click on the file menu in the toolbar, and then select new... (the points are important!), you will be able to create new ones (VI) from the model.  Choose a Framework, Design Patterns, producer/consumer Design Pattern (data).  It's what you want to do.

  You basically set up a "pure DAQ Acquisition Loop" (without logging TDMS) as producer, creation of 5000-element arrays of data every tenth of a second (if you are sampling at 50 kHz).  You create a queue of data outside the loop of producer whose elements are an array of 1 D of waveforms (the output of your Read DAQmx) and instead to send the data to a waveform graph, you put it in the queue.

  You are under this loop, a parallel loop that gets the same queue and remove items.  This loop will be sitting idle (no time taking CPU) until the data is queued.  He then it takes away the poster and registers (logs) in a PDM file.  Either way, you should open the TDMS file before entering this loop (consumer), write to the file inside the loop and close the file when the loop exits.  Study the example of the VI, you create with the model and see how it works.

  The beauty of this is that you can certainly 'keep up' with the writing of the data points in a TDMS file to 50 kHz.  You might not be able to display all the points, but there is nothing to prevent you from data processing (by, say, decimating or "block average" it) to a more 'user-friendly' display (your eyes ' sees' a 50 KHz signal?) -you have a set of 100 msec prior to the next package arrives in the queue.  Also note that the loop of producer probably takes very little time CPU - most of the time the material is waiting for its clock to 'tick', collection of points in a buffer, then transferring to the loop.

  Now you can have your cake and the computer display, too.

  Bob Schor

• several data points Boolean indiacator

  I run a program (which I'm still trying to work the kinks log data on) where I need to take several different channels and give me a warning if the temperature exceeds a certain limit. I'm 7 channels linking fieldpoint in a picture and sending it to a curve of waveform. I want each of these signals during playback to trigger a Boolean indiactor (LED) if the ambient temperature is more than 83. Ideally the temperature will be much higher later so I'll use it for fire tests (e.g. 1600) and it is very important that I get this down before we use the .vi in the fires of the test.

  For some reason, when I write to spread sheet file, I get 1 column of the last data point are met. There is also no time stamp on the left most column. I need to ensure that data are collected on every second and is stored in this file.

  I was also wondering if anyone knew how to change the names to write to destination of the spreadsheet (the gall that you create) file once instead of put the path in there. Finally, we will run several tests and we do not want to replace all the tests by accident. Please if someone could help with anything that would be great. Thank you!

  Tanya

  PS works with version 8.6

  Well, we can discuss one thing at a time. First of all, it is a way, you could do the evaluation of Boolean values.

  

  I think that I would split the data collection and processing of data in two loops. Have a loop that takes just the data and another that processes the data. This will also allow a state machine architecture. That would leave you do checks if a file exists before you leave and a few other things.

• With an average of data points

  Hello

  My setup is run by labview and wishes to reduce the noise associated with my data by taking more medium.

  I would like to have the medium-sized data points and taking the average of them and save only the average at the same time the experience is

  instance. For example. My experience is voltage vs field. For each field, I want three readings of voltage and the software must calculate the average, then

  Enroll in the average in the data file. The reason why I do not repeat the measurement, it is that it would take some time to do it this way.

  Can you advise how to do this with labview.

  Thank you very much

  Hi Alain,

  Take a look at the attached vi. I think that this will solve your problem. It takes the average of the 3 simultaneous values of an array of random number and saves it in the txt file that you need.

  Kind regards

  Amine31

  (Bravo to give good answers, mark it as a solution if your problem is Sloved)

• Spread the data point for many consumers? I'm probably overload it.

  Please see the attached screencap.

  The DAQ assistant, in the first case structure takes a lot of steps from a local cDAQ chassis.  One of these points of data (#15) must be extracted (where the signal selection) and then merged with the signals of three remote (ethernet connected) chassis.

  The question that I have, it is that the point of data, due to the fact that the chassis and consumers are not running in a specific order or sync, sometimes just is not there when consumer loops run and it reads a 0 instead of the value.  This causes the test bench to think that he loss of hydraulic pressure and calling for a stop.

  I know someone will tell me over the error of each DAQ assistant to another, but that creates a second 6.5 massive loop time, which is unacceptable.  The chassis must stay independent to reduce the execution time.

  I'm looking for a way to 'catch' the #15 data point and hold down for consumers to use until the next iteration where it is replaced by the new value.  I don't know if the collector is what I'm looking for, a sort of copy of data or a registry.  If he was an automaton, I would like to know what to do with it.

  Thanks in advance.

  You need a registry change around your loop (with the right button of the border of the while loop). This provides a way to save a value to an iteration of a loop with the next iteration. When you read successfully a new value, use that; When you do not, use the value of the work to register.

• How to draw 30000 points in a 2D image quickly

  I have 30000 points, each of which has a different color. At school, he is desperately your time, but I used the property to delay the update of the panelmand before that it's a LOT better than I first fill, but it is not enough and I still can't stand it!

  No response or help will be appreciated! I'm waiting for you!

  See attachment! Thank you!

  Try the joint.

  If you can send all of your 30 k points at the same time, you can do various operations in the form of 2D paintings rather than use a loop TO draw discrete points.

  If you need to make the pieces of 300 columns at a time, I have ideas on how to do it too.  Let me know.