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The NI Idea Exchange is a product feedback forum where NI R&D and users work together to submit ideas, collaborate on their development, and vote for the ones they like best. View all of the NI Idea Exchanges to post an idea or add your opinion on an existing one today!
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A feedback node is like a shift register.  Both elements can retain the past N values.  For a shift register you can access the entire internal memory by dragging down the left side terminals.  This is cumbersome if you just want a circular buffer. 

 

A feedback node is much more elegant for this task, however there isn't a way to access that memory.  If you could, you would make it extremely easy to make a simple circular buffer (oldest element is discarded, newest element is put onto the array).  It would be very useful, especially because the feedback node is polymorphic, and can take any data type.

 

Easy Circular buffer from feedback node.png

 

 

 

 

Expose "Call Chain" as VI Property

Status: New
by Member TurboPhil on ‎07-24-2015 10:16 AM

The only way I know of getting the call chain of a VI is with the Call Chain primitive, which only works on *this* VI (the VI calling the primitive). It would be nice to expose that as a VI server property, so we could get the call chain of any VI by reference.

 

callchain.png

 

 

Problem:

I faced to delete multiple elements form the array which is having 20 steps.

 

solution:

if able to select multiple elements by holding the shift key we can delete selected items 1 time and can insert 1 time.

 

 

Array element.png

 

 

Path Control Disable Text Entry

Status: New
by Trusted Enthusiast Trusted Enthusiast on ‎07-07-2015 12:12 PM

If I have a path control on my front panel for the user to interact with, I will always show the browse button.  This button makes selecting a path easy from a user perspective, and from a developer I know that the path they selected has some level of validity.  So for instance I know that the path they selected must exist and be a valid path otherwise Windows won't let them select it, and the value change won't be triggered for the control.

 

But the user can manually type in text into the path control, and when focus is taken off the value change event will take place.  The problem with this is the path they entered might not be valid, or may contain characters my platform doesn't support.

 

I doubt a user will manually type in text in the control often, they will use it as an indicator showing the path they selected using the browse button, but on the off chance that they type somthing and it isn't valid, my code might crap out throwing errors.

 

I can add code to check for a valid path, and I can add code to check for illegal characters in the path, but I'd have to do this for every path control on every UI the user sees.  I could also write an XControl for this with a decent amount of work and hopefully meet my needs, but it would be nice if this were a native feature.

 

So what I'm suggesting is that the path control have an option, possibly in the browse options dialog, which makes the interaction with the control, only available by using the Browse button.  This would ensure that any value change event will be from the user picking a valid path with the browse button.

Retain Default Label Position

Status: Already Implemented
by Member thilprakash on ‎07-29-2015 09:09 AM

If the Label Position is changed from default position there should be the option to retain the position, because finding the label in a very huge block diagram code is difficult as label is the only identification for the item

Status: Already Implemented

 Functionality already available with the Ctrl-T shortcut in Quick Drop

Search for Keywords is presently limited to logical "OR" search. It would highly profit from logical "AND" Search.

Improving NI Example Finder

Status: New
by Member ReimarSpohr on ‎07-24-2015 02:51 PM

LabVIEW could highly profit from improved access to examples. I suggest to outsource the NI Example Finder to an advanced web search engine.

NI send us the NI Developer Suite each year on DVDs all packed in a nice little NI branded dvd carry case. We are on the SSP suscription and we receive 3/years, which means I have a whole stack of them.

 

I suggest that NI start shipping USB keys instead. USB has several advantages:

 

  • USBs are smaller
  • USBs are more usable on devices without DVD player
  • Installing with one large USB means no more DVD swapping. I can go to lunch while NI installs/updates without having to change the DVD every couple of minutes.
  • USBs are reusable: when you get a new version on LabVIEW on a new USB, you can use the old one for regular usage. This also means less waste, since the USB keys are still in use after a new version ships, but the DVDs are useless.

 

Ship developer suite on NI USB keys

Status: In Development

Allow project explorer window to be pinned

Status: New
by Active Participant ToeCutter on ‎06-29-2015 05:58 AM

I have a large library of general purpose functions and I do a lot of OOP in LabVIEW, and as a result my preferred workflow involves dragging a lot of functions from the project explorer window onto the block diagram. This workflow is slowed down, however by the fact that the project explorer window is regularly hidden by other windows when I click on them.

 

What I would like to see is something like most development IDEs have, e.g. Visual Studio, where I can have the project explorer always visible in a fixed position on the screen. I suggest this would be an option, so would not affect those who like things the way they currently are.

Picture says it all.

 

Concatenate with an option of 'concatenate to new line'

 

 


I am not allergic to Kudos, in fact I love Kudos.

 Make your LabVIEW experience more CONVENIENT.


LabVIEW Version conversion tool

Status: New
by Member patibandla on ‎07-20-2015 12:07 AM

Hi All,

 

I saw in the Forums,Developer are spending more time on the convertion of the programs from UP to Down or Down to UP due to their requirment.

if NI provides the add on tool for Converting Up/Down,Down/Up.

 

it is easy to use and they can spend more time on other part of Developmnet.

 

Version tool.png

View and modify splitter hierarchy

Status: New
by Active Participant dsavir on ‎06-17-2015 03:01 AM

I use Splitter extensively to create resizable GUIs. However, if I create my resizable GUI and then my customer asks me to add parameters in a new pane on the left, I can't add to an existing GUI a splitter in the top of the hierarchy, i.e. a new vertical splitter that all the existing splitters will be on the right of the splitter and a new empty pane on the left. Any splitter I add will be added to the bottom of the existing hierarchy, and there is no way to change this. So to do this I basically need to rebuild the GUI again from scratch.

 

Another example, if this is my GUI:

scope.PNG

I can't add a status bar now, as any horizontal splitter I add will be inside an existing pane, and this can't be modified. However, if this idea were implemented, I could View splitter hierarchy and create a new horizontal splitter at the top of the hierarchy so that I would have my status bar without rewriting the whole thing.

 

 

Thanks,

Danielle

 

Close Project

Status: New
by Trusted Enthusiast on ‎03-21-2015 02:03 PM

 

 

  It would be very usefull to know which VIs are still running.

   aaaa.png

List out number of coersion dots in the vi

Status: New
by Member thilprakash on ‎07-27-2015 08:05 AM

List out number of coersion dots in the vi like a break point manager window.

 

for connecting the Controls & Indicator very diffcult for more connector in the pane . 

 

if automatically zooms the pane while placed the wiring tool on the connector pane the programmer can easily wire the pane with the controls and Indicators.

 

Connector Pane Zoom.png

Project Explorer: Hovering over a Virtual Folder during Drag & Drop should open that folder

Status: New
by Trusted Enthusiast ‎06-05-2015 12:50 PM - edited ‎06-05-2015 12:54 PM

In the project explorer, dragging an item into a folder opens that folder AFTER the drop. This is annoying. But I digress...

In fact, what would be useful is to have the behavior of the two file explorers I am familiar with (Windows and Mac OS), that is:

 

- if an object is drop onto a folder icon, the folder does not open (see link above)

- if the object is held for a while over the folder icon, the folder opens

 

This is particularly helpful if the project explorer has a hierarchical structure of Virtual Folders:

 

Screen Shot 2015-06-05 at 10.44.15.png

If I drag Untitled 1.vi over the Action folder and hold it here for ever, nothing happens, and in particular, I can't access any of the the subfolders.

After dropping it, I get this:

 

Screen Shot 2015-06-05 at 10.44.40.png

 

Now the top folder is open, but the VI is nowhere where I want it to be and I need to repeat the drag & drop action.

 

This example doesn't do justice to the real issue which is that for large lists of VIs and folders in a project, this becomes a real problem, as VI and target folders (after everything is opened to provide a clear path from original to target destination) may end up separated by large amount of space in the project explorer and you now have to use the temperamental "Drag the object over the 1-pixel wide location at the top of the project explorer to trigger scrolling" feature in order to slowly bring the object to its remote destination.

Should be able to specify tolerance instead of just upper and lower limits. This de clutters the application block diagram when you are checking for a value within certain limits.

 

 . Upper limit becomes : x+ tolerance, Lower Limite becomes : x - tolerance when using tolerance instance of the polymorphic vi.

 

For even higher level functionality , specify units of tolerance : absolute, percent(1e-2), parts per million (1e-6), parts per billion (1e-9)

Sandboxed execution

Status: New
by Member spatry on ‎07-10-2015 11:00 AM

It would be really nice is the IDE, and my program were not the same process.

 

Especially when dealing with 3rd party DLL's, it would really be nice if a bad pointer or misallocated buffer in a DLL didn't crash my whole development environment, but instead just took out the running program.

Clear Errors Polymorphic Inputs

Status: New
by Trusted Enthusiast Trusted Enthusiast on ‎05-04-2015 07:51 AM

In 2014 the Clear errors VI now accepts a single error which can be cleared.  This is nice but when I heard NI was implementing their own filter errors, I assumed they would do it in a similar way to the OpenG Filter Errors VI, which accepts a scalar, or an array of error codes to filter.

 

In addition to this I think it would be helpful if this Clear Errors also accepts the error data type for errors to filter, or an array of errors to filter.  That way the Error Ring can be used to help readability of the block diagram showing the error that is being cleared.

 

Improve Clear Errors Filter.png

Let the user choose the probe location on a wire

Status: New
by Trusted Enthusiast on ‎04-24-2015 08:13 PM

Ther are 10 pages of suggestions coming up when typing "probe location on wire".

AFAIK, none of them addresses this irritating behavior of probes:

 

Screen Shot 2015-04-24 at 18.07.18.png

 

The probe icon will snap to some algorithmically determined location which might result in illegible data flow during debugging, or might end up in a region of the diagram far from where the critical action takes place.

I know that what matters should be the VALUE of the probe, but WHEN to check the probe value is also critical, and in a visual development environment, this time is determined by monitoring the data flow (among other methods). This is where this uncontrollable probe location can be annoying at times.

 

My suggestion: just as for labels, let the user choose the location of a probe anchor point on a wire (especially when it branches off).

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