several data points Boolean indiacator

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• 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"? :-)

• 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.

• recording of data points over 6 million deposit

  Hello

  I try to save all my data points of tension, plus 6 million points, I've gathered using DAQmx LabView functions in a file. The code I did works very well and will be traced all points on a XY graph, but when I try to export field data in a txt or excel file LabView wants to close. I understood how to use the functions of PTM in the toolkit features LabView and it prevents the program from closing; However, it will return a set of data points, but not all the data points. I was wondering if there is a way to divide the data into small amounts and record into several files. I thought maybe I could get my data points index in different table rows and save each line in a clean file but I don't know how fast the program can create and save new files. Any suggestions? My sampling rate is ~ 412 714 per second over a period of 15 seconds and I collect samples total 6 190 708.

  Know / do you understand the concept of stream, Central of LabVIEW?  A data flow consequences, is that if you have two loops While not connected in series to each other (i.e. you do not have an output of a session at the entrance to the other), they will both run in parallel, 'sharing' of the CPU.  So if a loop is the acquisition of data from a DAQ card, which means that if card is programmed to deliver 1000 points to 1 Khz, that loop basically 'wait for' maybe 998 milliseconds, then switch 2 milliseconds delivering 1,000 points (it's probably even faster than that).  So, if a loop requires 2 milliseconds per second, which leaves 998 milliseconds per second of time CPU for the loop to do everything he needs to do.

  This is the "magic" behind the producer/consumer model.  Both loops are connected to their entries by a queue, so that they can operate in parallel.  The producer, when he gets his 1000 points, put simply all points on the line and it's done.  Points "travel" in the queue (if you want to think about it this way) on to the consumer, where they are removed ("reconstituted") and then plotted, written to the disk, FFT would or whatever during the "copious free time" remaining after the producer had its aliquot.

  Bob Schor

• 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

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

  I have no use for the each data point = function node on my chart, and I suspect that's the reason why in my application performance is very poor. I have a line chart which can be composed of several hundreds, or even thousands, individual data points----> I can not afford to draw a node for each of these points when he didn't need to do. I just need the line between the drawn points.

  A quick ogle at the JavaDoc reveals no obvious way to do it. I can remove the Visual effect in CSS - and I have - but the nodes are still created.

  How can I prevent the JavaFX creating a node for each point?

  I have the same problem: try to use

  lineChart.setCache(true);
  lineChart.setCacheHint(CacheHint.SPEED);
  

  This should speed up your data series

• Clone VM runs on several data warehouses

  Hi all

  I have a virtual machine that spans 2 data warehouses and I don't know how it happened like this:

  I cloned a VM from a template.  The model is in my store of data VOL3.

  In the summary for my VM tab, it shows that it is connected to and VOL2 VOL3 data warehouses.  When I sail both VOL2 VOL3 data warehouses, I see all the files associated with the virtual machine on VOL3, so I do not know why the VIC is reported as connected to VOL3?  It has only 1 drive, and who connects to a single vmdk on VOL2

  Some notes when I cloned the virtual machine template, I forgot that I had the CD connected to a .iso on the VOL3, maybe that's the question?  I unplugged the virtualCD, but no change?  It doesn't seem to be hurt anything at the moment, but I guess it could complicate things on the road.

  Thank you

  Chad

  I think that the reason that you see your vm split into several data stores is the .iso file, presented during the configuration of the virtual machine. Instead of unplugging the drive (which has the .iso file) change the cd configuration to use a client device.

  I hope this helps.

  Best wishes / Saludos

  Por don't favor no olvides calificar las responses that you were should o ayuda valiosos.

  Please, do not forget the points of call of the "useful" or "correct" answers

  ________________________________________

  Nicolas Solop

  VCP 410 - VCP 310 - VAC - VTSP

  My Linkedin profile

  Join the Virtualizacion en Español group in LinkedIn

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• WiFi HP ENVY 4500 with several Access Points - same SSIS Configuration

  Hello

  We just got a HP ENVY 4500.  I have a main homenetwork with a wifi Modem/Router and an old router acting as an Access Point to the floor to extend coverage.

  Both have the same SSID and password and are set to different channels.

  My HP ENVY 4500 fails to connect when the Access Point is lit.

  It will connect with it.

  Once connected, I can turn on the PA and all is well.

  The two router an AP using WPA-PSK/WPA2-PSK encriptación

  The router (that it connects to) should have a better sgnal when both are on, so I do not understand why they need the AP to be turned off to connect.

  Any thoughts people?

  Eserim

  I think he has always had problems with several access points.  Try this, what ever AP is closest to the printer, set it to channel 1.  Then try channel 11.  Try now.

• 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.

• 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

• A data point pixel position

  Hi all

  I would like to know where is the location of the mouse position to a point of data compared to the graph. basically, the opposite of this person's job action:

  The point value of graphic display WPF overview

  http://forums.NI.com/T5/Measurement-Studio-for-net/WPF-graph-display-point-value-on-hover/m-p/243395...

  Instead of getting a data point, hold the position of the mouse. I am the superposition of the shapes on the chart and would like to know for a specific point in the graph in pixel coordinates.

  Thank you.

  Of after your question, I assume you have a data value you want to translate (as opposed to an event arguments of mouse, which already has a GetPosition method).

  You can use the DataToScreen to get a position of the screen in the plot area, so use DesiredPlotAreaMargin to compensate for this position on-screen to reference external graphic control (i.e. point.X += margin.Left; point.Y += margin.Top ).

  You can also use the DataToRelative to get a relative position of a data point, then place an object in the Children collection (a bit like a PointAnnotation ):

  XAML

  
  
  xmlns: or = "http://schemas.ni.com/controls/2009/xaml/presentation."
  
  xmlns:niPrimitives = "http://schemas.ni.com/controls/2009/xaml/presentation/primitives".
  
  ...
  
  
  
      
  
          
  
                   Width = "10".
  
                   Height = "10".
  
                   STROKE = "Black".
  
                   StrokeThickness = "2".
  
                   niPrimitives:RelativePanel.RelativeHorizontalAlignment = "Center"
  
                   niPrimitives:RelativePanel.RelativeVerticalAlignment = "Center"
  
                   />
  
      
  
  
  
  

  Code

  
  
  Parent = graphic point. DataToRelative (dataValue);
  
  RelativePanel.SetRelativeHorizontalPosition (dataMarker, relative. (X);
  
  RelativePanel.SetRelativeVerticalPosition (dataMarker, relative. Y);
  
  

• 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

• Flags Data Points: copy - lack of flags?

  I use DIAdem 2012 to extract a FFT points. Whenever I use the function ' copy of flags Data Points: "created channels are missing the last point data (flag). in other words channel contains n - 1 points.

  For the moment, I add an additional indicator to make sure I have copy all the flags that I really need, but I got apprcieate all the tips, I can miss something obvious... I have attached a screenshot.

  Thanks in advance!

  Padraig

  Hello

  Thanks for posting. I confirm that you are able to put all the flags you need, but that all those flags don't get copied? If that's what you do, you then select flags more than necessary, then copying all the? You may need to browse to re - select indicators and copy them, then start again.

• 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)