jgcode

QUOTE (Michael_Aivaliotis @ Jun 5 2008, 04:23 AM)

I blogged recently about some great NI content. I watched some of those webinars. I also received a phone call a few days later from an NI sales person asking if I needed any help since I watched the webinar. Is it just me or is this practice down right annoying as hell. It really makes me NOT want to click on any NI content. This is not the first time this has happened. Anyone else annoyed at this?

PS. I wouldn't mind an email as much, but a phone call is over my limit.

We have to think twice about sending clients/potential clients to the website due to this!

But I have to give them a pat on the back, their internal data gathering/management system is a well oiled fighting machine.

The world is so horizontal now, and they have taken advantage of it.

Can't fight it...just have to find ways to exploit it for our business, without occuring any negative effects.

QUOTE (crelf @ Jun 5 2008, 05:37 AM)

No undo actually made me cry once...

Haha...my boos started coding in like LV 1 or 2..sucker

QUOTE (neB @ Jun 5 2008, 12:58 AM)

Hi Ben

Good call! Add 1) to the list - that annoys me so much I forgot to add it

Haven't ancountered 2) ...yet...

I would thought I would share a little insight into my head :ninja:

Unfortunately there are parts of your work day that suck. I love programming in LabVIEW. I started in LabVIEW 8 and have never looked back - until recently that is. I can understand clients that prefer not to have code regularly maintained due to cost. But working on 8 year old code is a joke. Now I don't mind using LabVIEW 7 (even though there is no project) because you can do cool stuff like this or this. But I have had to use LabVIEW 5 a bit recently and it is enough to make a grown man cry (yes I have been known to cry over this)

Here is a current list of things off the top of my head that annoy me (some might be attributed to options but I am not annoyed to look): :headbang:

No project (I cannot live without my project)

Unbundle/bundle must be statically set

Cannot use auto-select tool (I cannot live without my autoselect tool)

No autogrow on structures – code gets easily hidden

Missing latest VI and structures that I am used to

Different icons for common VIs (results in high usage of context help)

Tunnels – what's with that! Is it auto indexed? Or is it not?

No browse button on FP folder control

Cannot delete from BD

Cannot double click on BD terminal and go to FP control

Cannot right click and select Open Type Def

Its' slower

I guess design patterns were being invented around then because I am yet to see one! It seems spaghetti is in and globals rule!!

I have to work in a VM (which isn't that bad but I can't get VMWare to work with USB devices but that is another post...)

And lastly it's just plain ugly

So instead of turning this into a gripe about LabVIEW 5 I want to say thank you to everyone that has helped make LabVIEW into what it is today. People complain all the time, but right now every time I open up 8.5 I am in love again! I guess you can take stuff for granted, but even as a somewhat noob to LabVIEW coming in at LabVIEW 8, I realise I am very lucky to have all the features I have today that make me enjoy my job!

Software is about the user experience and this user is satisfied! - so thankyou LabVIEW team (NI and LabVIEW Community). :beer:

Word.

QUOTE (Pollux @ Jun 4 2008, 10:09 PM)

this means I could get all versions of 99bottles_of_bear if only I ask the respectiv programers to "Save for Previous" for me! :beer: :worship:

Sorry, yes any LAVA'ly people on this forum can do it :thumbup: assuming it contains compatiable features.

QUOTE (Pollux @ Jun 4 2008, 10:13 PM)

could you please save your program for the 8.0 version of LV and pas it to me?

I'm highly interested in beer drinking algorithms and songs as well as in led matrices control.

Hi Pollux

Give this a go... it contains the Open G VIs as well in case you don't have them - but you should get them !!

Download File:post-10325-1212591987.zip

Code is in LV8.0

QUOTE (neB @ Jun 4 2008, 07:18 PM)

http://forums.ni.com/ni/board/message?board.id=170&message.id=209743&query.id=56852#M209743' target="_blank">See here for examples that Christian and I offered (on the dark-side).

Nice post :thumbup: thanks Ben.

Thats the funky algorithm I was talking about!

Hi Pollux

It is possible for the attachee to save in a lower required format with limits.

For example in 8.5 you can save for previous versions (you can save code to 8.2 or even 8.0).

I would suggest posting back in a thread and requesting a lower version.

This should get you started..

Good luck

JG

Download File:post-10325-1212573974.vi

Code is LV8.0

QUOTE (ASTDan @ Jun 4 2008, 03:35 AM)

The course Books from NI are very good.

I would recomend Intermediate 1 and 2

http://sine.ni.com/nips/cds/view/p/lang/en/nid/10292

Dan

I am a big fan of the NI courses. However, given that information in Intermediate I touches on LabVIEW Component Oreintated Design (LCOD) - or as NI call it Multi Functional VIs (MFVIs) - it is worth a mention to include

A Software Engineering Approach to LabVIEW by Jon Conway & Steve Watts.

Even though I feel this book is now a little (only a little) out of date in terms of LV8.5, new designs and examples, a lot of the principles are concrete.

This book was a large stepping stone for me and it helped me a lot.

Still a great read and reference book too!

JG

QUOTE (Tudor @ Jun 2 2008, 04:22 PM)

Observer Pattern GOOP.zip I am trying to use formula node to solve a problem, i have to show a message on screen if a number is higher than aother

something like this :

int32 c;

if (a>40) {

c= "the value of a is ", a , "and is higher than 40" ;

}

is it possible?

thanks in advance

(i've attached a photo)

Alternative solution?

http://lavag.org/old_files/monthly_06_2008/post-10325-1212398470.png' target="_blank">

QUOTE (Jan Klasson @ Jun 2 2008, 03:37 PM)

Clarification about Endevo GOOP tools.

The GOOP Development Suite uses lvclass for its by reference architecture so it will no run on RT until lvclass does.

As Mike pointed out GOOP 2 runs on RT. GOOP 2 is our class architecture which is included in the GOOP Inheritance Toolkit. GOOP 2 runs on LV 6.1 and up and is of course not based on lvclass. It does use Sem for synch and is therefore not deterministic. It can be used to structure the part of the code which is not time critical. GOOP 2 provides inheritance and virtual methods (works similar like Dynamic Dispatch).

Jan

Thanks heaps for the reply Jan - very informative.

My questions have been answered!

Thanks everyone :beer:

QUOTE (SciWare @ Jun 1 2008, 09:15 AM)

Hi JG

I've updated my site and GOOP Developer 2.1 is now compatible with LabVIEW 8.5

To upgrade to GOOP Developer 2.1 Full simply visit the support page and enter the e-mail address you used with your order.

Damn that was quick! Thanks heaps Kurt. Will get into it on Tuesday due to the long weekend. :beer:

Use Context Help to get name of VI.

Then use the search function on the palette

QUOTE (SciWare @ May 31 2008, 07:56 AM)

Hi JG

Yes classes developed with GOOP Developer will work on RT. I have a version that works with 8.5 that can be released so I'll get moving on that and put an update out soon.

Thanks for the reply Kurt

Look forward to the 8.5 release and will let em know!

Keep me posted for the release

Cheers

QUOTE (prads @ May 31 2008, 06:14 AM)

In my implementation, the data file is a 1D array of string and the template is a 1D array of string. However when I use the build array.vi it still produces 1D array of string. Now the output of the build array does not let me connect to the Write to Spreadsheet File.vi's 2D input. So when I check the data.csv output file after running the code, it shows me my template completely first and then my input data. Somebody please help.

You should take orko's good advise and search LabVIEW Help to easily answers such questions, as it will only benefit you in your LV personal development.

However, if you are genuinely stuck below is the answer.

Enjoy!

QUOTE (Phillip Brooks @ May 29 2008, 09:27 PM)

Can you use a splitter bar? I think these were added in 8.0. You would set the lower pane to be a constant height and disable the vertical and horizontal scroll bars.

Yup, that what I use.

I use one up the top when I want to create a toolbar too....

Search LV Help for the Event Structure.

It is located: Functions Palette>>Structures>>Event Structure.

This is the best structure for handling GUI's.

On a side note, having just said that, if you use LV embedded, you will most likely now and then, revert back to the old school style/design-pattern of polling a cluster of booleans, converting the cluster to an array and searching for a TRUE and handling it with a nested case structure. This is because you cannot use the event structure under RTOS. You will use this method if you use a user interface thread to setup front panel communication with your embedded code (this is usually only done in development phase to help with debugging as it is non deterministic).

The benefit of the event cluster is that it handles an event only when an events occurs therefore, the system is not continually polling wasting resources.

QUOTE (prads @ May 29 2008, 02:33 PM)

Oh wow the above code is excellent. However is that possible with Write to Text File.vi as well or only with Write to Spreadsheet File.vi?

Thanks,

prads

No worries

Write to Spreadesheet uses the native Write to Text File VIs so yes....go for it!

QUOTE (gleichman @ May 29 2008, 11:48 AM)

I have doubts about your question. You can't insert new data into the middle of an existing text file. If you want to use a text file template, you will have to read it, insert the new data (in memory) and then write it back to disk. You could use unusual characters to mark where text is to be inserted such as ASCII(255).

Yes that would be hard, but you could treat your data as arrays to overcome this.

Try this...

Download File:post-10325-1212038756.zip

Code is in LV8.0

My first time was with a .lvlib

So much for protecting my VI names with the library namespace!

It just dumped duplicate names outside of the .exe!!

If you are only writing the value of the cluster to the .ini why not just pass by wire so you can follow you code using dataflow?

Or is there some particular reason to use references/property nodes?

QUOTE (hakannn @ May 26 2008, 10:26 PM)

firstly, thanks for your concern

i'm trying your suggestion.

i send to "calisan.VI"

thanks for everything...

hakan

hi again,

i opened your example but i don't know what can i write the "physical channells".

i writed dev1/ai0 bc i'm using "AI0". but i can't read the AI

pls help again.

thanks for everything

hakan

http://lavag.org/old_files/monthly_05_2008/post-10325-1211814136.png' target="_blank">

No worries

You need to make sure you have the FULL correct physical channel name

e.g. Dev2/ai0 (PCI, USB etc..)

e.g. cDAQ1/Mod2/ai0 (Compact DAQ chassis)

not just "ai0"

Go into MAX and make sure you are selecting the correct device.

Green is "installed and is plugged in"

Yellow is "simulated"

White with red cross is "has been installed but currently not found"

For your real device make sure has a green icon and that the device name is correct.

QUOTE (hakannn @ May 26 2008, 04:05 PM)

hi everybody,

i'm a student to istanbul. i'm not good to Labview. i wanna read the AI and write to text.

i read the AI but i can't write to text. My program's is writing to text just one time.

pls help me

i hope u can understand my problem

look forward your reply

Code is in LV8.0

Hi Hakannn

I couldn't run your download as a VI was missing (calysan.vi) however, I have had a look.

Please find a basic example attached of one way to collect software timed DAQ and stream it to file.

I have a few pointers on your code as well with the main thing being you need to continually poll the DAQ Read VI in a timed loop (whether this is hardware or software timed) and read the output [array] and write it to disk.

Please check Help>>Find Examples for more DAQ and File IO examples.

Enjoy!

Download File:post-10325-1211808458.vi

Code is in LV8.0.

QUOTE (Tomi Maila @ May 26 2008, 01:58 PM)

Can you add to the report that if you in the color dialog window press the more colors button, and press Cancel button in the more advanced color dialog window, the event gets still fired.

OK I am leaning towards bug

You're welcome.