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The connector pane is a very useful feature for defining what the parameters for the VI are, therefore how it interacts with its environment.

On the other hand, the development experience did not age well. The 32x32 icon that is divided into smaller areas based on the pattern selected for the VI feel small on today's screens. On top of that most of the functionality is hidden behind the context menu.

This feels like a lacking experience for a crucial feature, but we grow accustomed to it, there we do not complain. But that doesn't mean things cannot be improved.

I would personally prefer a new window being opened when I want to edit the connector pane. The pane itself could be represented with 5x magnification (or even better, user selectable): 160x160 pixels.

On the pane, we could have a dedicated drop down that facilitates the selection of the pattern.

On each connector we could have a border representing its current state: Dynamic dispatch/Required/Recommended/Optional.

Cycling trough these states would be available on left click, for example, and reversing the direction with a shortcut, like ALT + left click.

Connecting the front panel terminals to the connector pane could be done by dragging and dropping to the desired place. To make sure that mistakes do not happen, the drag operations shall not move the front panel controls on the panel itself.

To make the workflow as smooth as possible buttons could be added to Apply the new connector pane, Apply and reorganize the front panel, Reorganize the front panel or Cancel the whole operation.

To make sure that we don't lose existing functionality the CTRL + left click shortcut shall keep the swap terminals functionality (a.k.a.: switcheroo).

Removing controls from the connector pane could be done by the right click, or left click for selecting the terminal and then using the Delete button on the keyboard.

Other operations inside the context menu, like the rotate by 90 degrees, add terminal, remove terminal, etc. could be made available via the menu of the window. I personally use these less, but if there is need for them, then we can discuss how they shall be presented on the window.

 

Since this idea was formulating over a long period of time in my head, but by no means lot of tought put into it, I'm very open to discuss the details. And, by no means the only or best solution to improve the Connector Pane UX.

In a recent version of LabVIEW the height of Unbundle By Name and Bundle By Name elements, Local Variables and Global Variables was standardised to 16 pixels. This was a welcome improvement. (I'm fairly sure that the improvement was suggested by a LabVIEW Idea. I would have liked to link to that idea here but unfortunately I can't find it right now.)

 

The size of Boolean constants is currently 16 pixels (width) x 14 pixels (height). This should be standardised to 16 pixels x 16 pixels. A vertical stack of Boolean constants would better align with a stack of local variables, global variables, or UBN/BBN elements. They would also align better with the default sized LabVIEW grid (16 x 16 grid).

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Thanks!

The name of the "Get Date/Time in Seconds” function is misleading. The function should be renamed.

Combined v2.png

 

 

 

 

 

 

 

Details

  • The current name does not make it clear which Date/Time it is going to return. The words "now" or "current" are missing.
  • The "In Seconds" portion is misleading and unnecessary. The function correctly returns a timestamp data type. The timestamp represents a moment in time that is expressed not just in seconds, but also using lots of other time units such as days, hours, minutes, ms, us, ns, etc. I understand that when a timestamp is converted to a DBL, the value represents the fractional number of seconds since the beginning of the epoch, but this is an implementation detail. It should not be part of the name of the function.
  • “Get Date/Time in Seconds” would be a suitable name for a conversion function that takes in a formatted Date/Time string and outputs a DBL that represents the number of seconds since the beginning of the epoch.

Names of equivalent functions in other languages

  • .NET: System.DateTime.Now
  • C++: std::chrono::system_clock::now()
  • Python: datetime.now()

Notice that the equivalent function names contain the word "now" and omit "in seconds".

 

Perhaps the best new name for the function would be “Get Date/Time Now”. This name would be very much in line with the .NET, C++ and Python equivalent function names. This name would earn the "let's not reinvent the wheel" prize.

 

Nevertheless, I would be happy with the following names too:

  • “Get Timestamp Now”
  • “Get Current Date/Time”
  • “Get Current Timestamp”

Notes

  • Changing a primitive name may break VIs that use VI scripting to find or create this node. This is a downside. I believe that in this case the long-term benefits would outweigh the relatively minor annoyance of hopefully relatively few developers having to modify those scripting VIs to use the new primitive name.

When pressing the "Stop" button when your project is loading you get this screen

 

BasvE_0-1704359642069.png

 

It seems that pressing "No" is the fastest way to abort loading but for bigger projects it still tries to load some classes/libraries/vi's which could take a lot of time.

 

I would love to see a way to abort loading the project instantly.

Quiztus2_2-1754045229444.png

Currently, when right-clicking a Messenger channel tunnel in LabVIEW, the context menu only offers the option to create a channel reader. However, Messenger channels support multiple writers, so it would be both logical and convenient to include a "Create Channel Writer" option directly in the popup menu.

At present, users must manually insert an element of the channel wire’s type and then create a writer from its output—an unnecessarily cumbersome workaround for a simple task.

This seems like an oversight rather than a technical limitation, and adding this feature would streamline development and improve usability for anyone working with Messenger channels.

Bug replication steps:

  • Ensure that the "Connector pane terminals default to Required" option is ticked (found in Tools >> Options >> Front Panel).
  • Connect an indicator to a VI's connector pane.
  • Right-click the indicator and select "Change to Control".
  • The indicator changes to a control, but the connector pane terminal is Recommended. It should be Required (should obey the environment setting).

Notes

  • Mis-connecting an indicator to the connector pane while believing it is a control can occur moderately frequently, especially when working with front panel elements that do not look very different when they are controls vs. indicators, for example: variants, objects, typedef clusters, system-style strings or paths.

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Say you have new errors you want to merge into an existing structure. You have to expand the merge error, then bring the new error to the merge. Here is what I'm proposing.

 

Before.png

Start wiring the new error, then click on the merge error node.

During.png

LabVIEW expands and connects the error wire

After.png

This would also be nice for any expandable node like build array, concatenate strings

BA and Cat.png

 

 

Bonus points idea, but might cause more polarization so don't let the entire idea hinge on this. Clicking on an existing unbroken wire can insert the node.

Bonus.png

The existing UI behavior just wires a new source into an existing wire, which really only breaks the wire. I'm not sure the above behavior would take capabilities away from the user. For build array to work this way, it would have to detect if the singleton was the same type as the array wire you were clicking on. This is a bit more iffy in my mind.

 

We need a “modal when called” behavior where the VI is NOT modal when the VI is not currently running (being called). Otherwise, accidentally opening the VI during development while the main VI is running will make it so you can’t interact with any other front panels, block diagrams, or any other LabVIEW windows; and you’re stuck — you have to kill LabVIEW from task manager or cmd.exe (taskkill /f /im LabVIEW.exe)

 

2020-12-11_12-28-19.png

 

My work-around is to add this little snippet of code that uses a Floating behavior in development and a Modal behavior in a built application (EXE).

 

 

2020-12-11_12-34-49.png

When adding a file via the project tree to a .lvlib or .lvclass, it is highly likely that the file is located in the same folder as the corresponding .lvclass. For .lvlib, the file is either in the same folder or one level deeper.

When using the right-click menu Add File... on a .lvclass or .lvlib, the Select File to Open dialog should automatically navigate to the folder containing the .lvclass or .lvlib.

Currently, it navigates to the previously used folder instead.

 

Quiztus2_0-1746633483616.png

This should immediately navigate to the folder containing Cell.lvclass.

Quiztus2_2-1746633711942.png

 

 

 

I was almost certain this idea already existed, but I couldn't find it. If it does exist, please cross-link and disable this idea.

 

There are a coupe of functions which could really benefit from backwards propagation of data types. By this, I mean the ability to change a functions input datatypes based on a wired output.

 

Some functions already do this (like Variant to Data). However, that implementation has its flaws (as far as I can tell, the backwards propagation only works if wired to an indicator terminal).

 

Functions like Select, Obtain Queue, and Create User Event would benefit greatly from this (as well as many others).

 

Essentially, what I would like is a Type Specialization Structure that works backwards.

 

To implement this using today's technology, I guess we could create express VIs which have scripting function calls whenever the outputs are wired??? But that's janky and not practical for everyday development.

 

Simple example of SelectSimple example of Select

 

 

Here's a previous idea I posted, for this post, I'm proposing a generalized version of what I suggested there.

Sidenote: here's a plugin I created to make working with Select easier.

When typing a path in the Terminal (Linux, Windows or macOS) hitting the table key does an auto-complete, this is extremely useful.

 

I wish the Path control and - let's dream - the path constant would behave the same.

 

It's probably only applicable to absolut path values.

 

I've made a QControl that does that, it's a bit basic but it does help, I might post it GitHub if there is interest.

Hi,

 

When I use array constants on the block diagram I often expand them to show how many elements they contain - I even expand them one element further than their contents to leave no doubt that no elements are hiding below the lowest visible element:

 

Array_ordinary.png

 

Often it's not so important to know how many elements are in the arrays, nor even their values (one can always scroll through the array if one needs to know). But it can be very important to not get a false impression of a fewer number of elements than is actually present, for instance when auto-indexing a For-loop:

 

Array_loop.png

 

To be able to shrink array constants to a minimum size while still signalling that they contain more elements than currently visible, it would be nice with an indicator on the array constant when it's shrunk to hide elements (here shown with a tooltip that would appear if you hover on the "more elements" dots):

 

Array_more.png

 

The information in the tooltip would be better placed in context help, but the important aspect of this idea is the "more elements" indicator itself.

 

Cheers,

Steen

Hi all,

image processing is not anymore the "tough stuff"/"niche" of the past. Videos are everywhere now, maybe even more than sounds. So functions that handle video should be included in the cross-platform standard labview, at least for the essential functions (reading/writing files with a minimal set of codecs, acquisition of frames through ip or usb for common protocols, conversion between image format for display and processable data). This would attract a lot of young users. It would also jumpstart future developments of labview in the direction of AI.

Thx

VI Analyzer is great tool but can only perform static analysis on VI (as far as I know). It could be nice to run some tests on libraries / classes or even projects files as well to enforce good practices. 

Every now and then, I stumble upon the following error when trying to use the "Match Regular Expression" node in a inlined/malleable VI:

 

raphschru_0-1727975484834.png

 

If I understand correctly this discussion, this is because it is an XNode, which is currently (or definitively) not supported in inlined VIs.

But further in the discussion, it is said that an exception was added in the compiler to allow inlining the "Error Ring" XNode.

 

My idea is to consider adding the same exception for the "Match Regular Expression" XNode, or make any modification that would result in this node being inlinable.

 

Also, there is nothing in the generated code of the "Match Regular Expression" XNode that prevents inlining!

All it really does is using a CLFN to call function "MatchRegExpEfficient" from the LabVIEW library.

 

Regards,

Raphaël.

I often want to find any cube-dropped class constants for a particular class on block diagrams in my project.  But, to the best of my knowledge, there's no easy way to do this. It'd be great if there was an option to find these when right-clicking on a class in the project:

 

class finding option.jpg

When working in LabVIEW in low light conditions, it would be nice to be able to have a quick way to switch to a dark mode, where the default block diagram colour would be a mid-dark-grey.

Currently the quickest way to open a typedef is right-click >> Open Type Def.

 

Holding down a modifier key (Ctrl, Alt, Shift, or a combination of these) while double-clicking on an existing typedef constant or terminal (Block Diagram) or control/indicator (Front Panel) would be quicker.

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Notes

  • The gesture could open the private data definition (ctl file) of a class when double-clicking on an object constant, terminal, or control/indicator.
  • Opening the typedef for inspection/modification is one of the most common actions when working with typedef clusters and enums.

I may want to use it 0-5% of the time.

However, I want to scroll through cases in a structure 95% of the time.

 

Making the 5% use case the default (ctrl-scroll) was a bad design choice.

Reverse it before it's ingrained.

 

(ctrl-shift-scroll is frankly awkward and imagine will become painful eventually)

 

 

 When you align a control that has increment/decrement buttons to other objects on the front panel that do not have them, LabVIEW aligns the buttons with the edge of the other controls.  The align objects command should ignore the increment decrement buttons and align the border of the control with the borders of the other controls.
 
 align.jpg
 
Workaround:  Hide Inc/Dec Buttons, align objects, Show Inc/Dec buttons.  However not as convenient.