topic Re: Block diagram messed up in LabVIEW

Block diagram messed up

truskawka — Tue, 17 Nov 2020 13:04:25 GMT

Hello, my block diagram messed up by itself. All the wires are spread all around the block diagram, there are wires everywhere and i cant even delete. Additionally, some of the elements on block diagram are not seen and loops are on other loops but Surprisingly it is working.

I tried to recover from Windows Restore previous versions, Labview temp file but it didn't work.

Are there any other idea?

Re: Block diagram messed up

crossrulz — Tue, 17 Nov 2020 13:43:22 GMT

This is common when your block diagram gets outside of a specified range (the exact values are escaping me at the moment). Simply put: your diagram got too large. Try shrinking your diagram some and hopefully it will come back. If not, I really hope you have a backup, either in Source Code Control (preferred) or a copy, that you can revert to. Use subVIs to modularize your code is probably the easiest way to avoid this ever happening. Generally, it is best to keep a diagram limited to a single monitor screen.

Re: Block diagram messed up

pincpanter — Tue, 17 Nov 2020 14:27:14 GMT

By no means clear what to do. Are they wild wires those horizontal lines in the navigation window? If yes, try to go there and Clean them up.

Re: Block diagram messed up

JÞB — Tue, 17 Nov 2020 14:49:00 GMT

Crossrulz may not have a very accurate 8-Ball.

I would look for Structures that have the auto-grow property disabled and sections that are excluded from Block diagram Cleanup.

As a fast rebuild take the following steps.

Close your offending vi
Close and reopen LabVIEW
Go to Tools>Options> and enable automatic grow on Structures

SUPERPRO TIP: to completely reset options close LabVIEW then rename LabVIEW. Ini

Open the offending block diagram
Select all <ctrl+A>
Create snippet from the selection
Close the offending vi
Create a new blank vi
Drop the snippet on the empty block Diagram
Hit Block Diagram Cleanup <Ctrl+U >

That should have solved 100% of the Structure settings and hidden code. You will need to do some work afterwards to segregate some sections of your code into appropriate subvis and learn better coding practices.

Re: Block diagram messed up

altenbach — Tue, 17 Nov 2020 18:55:53 GMT

@crossrulz wrote:

This is common when your block diagram gets outside of a specified range (the exact values are escaping me at the moment).

Start reading here.

(I agree that this is most likely the core of the problem)

@JÞB wrote:

Crossrulz may not have a very accurate 8-Ball.

I would look for Structures that have the auto-grow property disabled and sections that are excluded from Block diagram Cleanup.

.

:Autogrow disabled" does not cause wires going nowhere, whiteout sections, etc.

Re: Block diagram messed up

truskawka — Wed, 18 Nov 2020 05:41:12 GMT

I am sure that the diagram in the specified range, i have much larger diagram without any problems. unfortunately there were not any backup

Re: Block diagram messed up

truskawka — Wed, 18 Nov 2020 06:19:17 GMT

@pincpanter wrote:

it can not be deleted, probably it is belongs to some loops when i dleete some loops it is getting deleted.

Re: Block diagram messed up

altenbach — Wed, 18 Nov 2020 05:46:56 GMT

@truskawka wrote:

I am sure that the diagram in the specified range, i have much larger diagram without any problems. unfortunately there were not any backup

It's not the absolute size, but the coordinates of the items. You can have a small diagram that is positioned near the edge, exceeding the valid range and experience these issues.

Re: Block diagram messed up

truskawka — Wed, 18 Nov 2020 06:18:14 GMT

@JÞB wrote:

Autogrow is already working but i disabled and re-enabled for Fast rebuild option but didn't work.

SUPERPRO TIP also didn't work. When i tried to create snipped i am having the save screen but when i click on save button the snipped file is not creating in the specified folder.

Re: Block diagram messed up

pincpanter — Wed, 18 Nov 2020 07:33:19 GMT

@truskawka ha scritto:

@pincpanter wrote:

it can not be deleted, probably it is belongs to some loops when i dleete some loops it is getting deleted.

Actually I suggested to Clean up (right-clicking on the wire), not to delete.

But probably this will not work.

Re: Block diagram messed up

truskawka — Wed, 18 Nov 2020 07:41:52 GMT

@pincpanter wrote:

But probably this will not work.

yes also it doesnt work

Re: Block diagram messed up

johntrich1971 — Wed, 18 Nov 2020 13:03:39 GMT

Is it possible for you to attach the actual VI?

Re: Block diagram messed up

truskawka — Thu, 19 Nov 2020 11:15:28 GMT

Actually i cant share all, but i can share a part of the vi. You can find it attached.

Re: Block diagram messed up

GerdW — Thu, 19 Nov 2020 11:34:00 GMT

Hi ocan,

LabVIEW comes with several inbuilt tools to "measure" VI quality.

One of them is Tools->Profile->VI metrics…

This is its report on your VI:

Your VI clearly is too wide ("Breite" = width)!

LabVIEW only allows (max) 16383 pixels for width and height, the StyleGuide recommends to limit block diagrams to just one screen!

Get a working backup of your VI from your backup system (aka SCC tool) and your problem is gone…

Re: Block diagram messed up

truskawka — Thu, 19 Nov 2020 11:40:26 GMT

When i check it, it doesnt seen that large.

@GerdW wrote:

Get a working backup of your VI from your backup system (aka SCC tool) and your problem is gone…

Also can you please share how to do it?

Re: Block diagram messed up

GerdW — Thu, 19 Nov 2020 11:49:26 GMT

Hi ocan,

@truskawka wrote:

When i check it, it doesnt seen that large.

@GerdW wrote:

Get a working backup of your VI from your backup system (aka SCC tool) and your problem is gone…

Also can you please share how to do it?

Get the backup media, where you stored safe copies of all your work in regular intervals: choose an older revision of your VI from those backups and get it.
With SCC tools (Source Code Control) it's much easier: here you can use a menu to "checkout" an older revision of your VIs from your "repository" (terms refer to SVN).

When you don't have backups nor did use any SCC system then you learned the importance of both now the hard way!

Re: Block diagram messed up

truskawka — Thu, 19 Nov 2020 12:01:31 GMT

I dont have any backup actually. Is there any way to fix that vi?

Re: Block diagram messed up

GerdW — Thu, 19 Nov 2020 12:08:54 GMT

Hi ocan,

@truskawka wrote:

I dont have any backup actually. Is there any way to fix that vi?

No backups?

You can "fix" this VI by recreating it from scratch… (Use the documentation you wrote for your VI or whole project to remember all the functionality you put into this VI.)

Re: Block diagram messed up

truskawka — Thu, 19 Nov 2020 12:15:12 GMT

unfortunately no. I think i need to start from top

Re: Block diagram messed up

GerdW — Thu, 19 Nov 2020 12:33:05 GMT

Hi ocan,

@truskawka wrote:

I think i need to start from top

Before you start coding you should implement a SCC tool. Or atleast setup a backup strategy. Really!