Using "To-upper-case" on cluster with Enum (LabVIEW 8.2)

Hi folks,
     The following example won't compile on my installation of 8.2 !
<img src="http://forums.ni.com/attachments/ni/170/225670/1/ClusterErr.jpg"> 
Cheers.Message Edited by tbd on 01-23-2007  09:21 PM


x9561 (148438)
1/24/2007 3:40:07 AM
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It fails the same way under LabVIEW 8.0. Clearly something is not handled properly.
(Of course I don't quite see the general&nbsp;usefulness to use "to uppercase" on a simple&nbsp;enum. ;))
x9561 (148438)
1/24/2007 5:40:08 AM
altenbach wrote:

(Of course I don't quite see the general&nbsp;usefulness to use "to uppercase" on a simple&nbsp;enum. ;))

(tbd momentarily ponders: "Why does it seem there's always something Altenbach doesn't quite see?") 
Oh, gee,&nbsp;do it (enum to upper-case) all the time&nbsp;when I forget and type enumerated-case-values in all upper-case. :smileywink:
x9561 (148438)
1/24/2007 7:10:07 AM
<img src="http://forums.ni.com/attachments/ni/170/225670/1/ClusterErr.jpg"> 
Indeed it doesn't compile.&nbsp; But the To Upper Case VI handles numbers as ASCII codes.&nbsp; How would converting an enum value of 97 to 65 be useful to you?&nbsp; Are you trying to capitalize the strings in the enum's typedef?&nbsp; A case structure shouldn't allow you to create a new case for an enum input if the string doesnt match exactly...&nbsp; Howabout just using an integer and an array of strings?
If you really want to get the enum strings at runtime, OpenG has a few functions to help with such silliness.
x9561 (148438)
1/24/2007 8:10:09 AM
tbd wrote:

Oh, gee,&nbsp;do it (enum to upper-case) all the time&nbsp;when I forget and type enumerated-case-values in all upper-case. :smileywink:

The way I understand "to uppercase", it will just turn the enum into an unsigned integer, then remap certain values according to their ASCII representation (See figure).&nbsp;You can do the experiment yourself.&nbsp;(From the online help: If string is a numeric value or an array of numeric values, each number is evaluated as an ASCII value. The To Upper Case function translates all values in the range of 97 to 122 into values over the range of 65 to 90. All other values remain unchanged.) Actually, the help is incorrect, it touches a few more ranges&nbsp;for 8 bit ASCII (again, see figure)
<img src="http://forums.ni.com/attachments/ni/170/225698/1/ToUpper.png"> 
Actually, the online help for "To Upper Case" does NOT mention support for enums at all (quote: string can be a string, a cluster of strings, an array of strings, or an array of clusters of strings.)
So, having an enum with only two values as in this case, will not remap anything anyway, you'll need an enum with&nbsp;97+ values to even see a difference. It definitely does not change the case-ness of the enum strings!
WIre an enum to a case structure, then insert a "to uppercase" in-between. You'll loose all the enum strings....Message Edited by altenbach on 01-23-2007  11:46 PM

x9561 (148438)
1/24/2007 8:10:09 AM
Hey! Guys!, I wasn't serious! :smileysurprised:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; I'd assembled a&nbsp;bundle&nbsp;of (mostly) strings collected from a GUI, and&nbsp;wanted all the strings&nbsp;upper-case.&nbsp; I thought it would be much cleaner to put the "to-upper-case" on the cluster-wire, this also lets the bundle-by-name be changed without managing a "to-upper-case" for each input.&nbsp;&nbsp;Tried it, and... Hey -it&nbsp;worked!&nbsp; Chalk another-one up for polymorphism!
... then, strangely, I couldn't save my VI without a series of very odd error-pop-up dialogs.
I thought Altenbach was kidding, so I kidded back.&nbsp; ...but&nbsp;if&nbsp;you were serious, then my response to:
&gt; (Of course I don't quite see the general&nbsp;usefulness to use "to uppercase" on a simple&nbsp;enum)
is: You seem to be assuming that the intention was to apply "to-upper-case" to the enum.&nbsp; It's not.&nbsp;&nbsp; The intention was to apply "to-upper-case" to the Strings in the cluster.&nbsp; I thought&nbsp;it was&nbsp;supposed to work that way, else they should just break the wire if any elements are not strings - like they do if converting cluster to array but cluster data-types are dissimilar.
... However, having just read the help for&nbsp;"to-upper-case", it looks like only clusters of strings should be legal.Message Edited by tbd on 01-24-2007  03:21 AM
x9561 (148438)
1/24/2007 9:40:08 AM
tbd wrote:

I thought Altenbach was kidding, so I kidded back.&nbsp; 

I wasn't sure if you were kidding or found some very creative way around an obscure non-problem, so I investigated. :D
Anyway, you can replace the enum with a plain integer in the cluster and LabVIEW is perfectly happy and compiles just fine, so there is no reason why LabVIEW should choke on the enum. It's a bug.
Try it with a cluster containing a mix of strings and integers, it's all fine. :)
x9561 (148438)
1/24/2007 5:10:10 PM
Hi Altenbach,
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Thanks for not reacting to my over-reacting. :smileyhappy:
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Since, as your graph illustrates, the "to upper case"&nbsp;does operate&nbsp;on&nbsp;a Cluster's numeric elements (including floats!),&nbsp;it's not safe to employ&nbsp;it (to cluster wires)&nbsp;a cavalierly as I'd imagined might be possible. :smileysad:
It's interesting that (within the cluster)&nbsp;a "VISA resource" type is tolerated, but a "path" breaks it. :smileysurprised:
I'm in agreement with Shane re:silly to apply to enums (SGLs, DBLs,... ) better to give us the choice!:
Cheers!Message Edited by tbd on 01-25-2007  12:25 AM
x9561 (148438)
1/25/2007 6:40:07 AM

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I would simply like to write data in real-time to a file without the operator being prompted by a Dialog Box. Please see attachment for the code I used. &nbsp; Thank you! LabVIEW_Write To File Code.doc: http://forums.ni.com/attachments/ni/170/243833/1/LabVIEW_Write To File Code.doc Try putting the entire path including the file name (and not just the folder) as a path constant (and not use the string to path function) to the file path input. &nbsp; <img src="http://forums.ni.com/attachments/ni/170/243916/1/Open_Create_Replace.PNG"> Message Edited by Dennis Knutson on 04-25-2007 01:37 PM Open_Create_Replace.PNG: http://forums.ni.com/attachments/ni/170/243916/1/Open_Create_Replace.PNG Dennis Knutson wrote: Try putting the entire path including the file name (and not just the folder) as a path constant (and not use the string to path function) to the file path input. Dennis, Good lesson for me ! :smileyhappy: I m also not familiar with this thing of putting the entire path of a file, even if I wire a False to the Advisory Dialog inout. I thought that it is the maximum feasibility in LV. You opened my eyes &amp; brain. :smileywink: ...

I have some question on &quot;Use LabVIEW to Control two DSP and RTDX&quot;
I have some question when writing LabVIEW. I have DSP6711 and DSP6416, I use RTDX to send data to LabVIEW. I write three programes for LabVIEW, one is RTDX for&nbsp;DSP6711, another is RTDX for DSP6416, and the final is RTDX for two DSPs. The program of LabVIEW is workable when doing DSP6711 or doing DSP6416. But there is some problem when running DSP6711 and DSP6416 on LabVIEW at the same time. How to&nbsp;tell the LabVIEW's tool of " RTDX read" to&nbsp; get the datas from different DSP ...

Memory is full during &quot;Save As&quot; of LabVIEW 8.5 project
Good Morning All, &nbsp;&nbsp;&nbsp;&nbsp; Have run into a weird issue while trying to rename a LabVIEW 8.5 project. I've got two projects that ended up having the same names (one by me, one by another engineer). I want to open both at the same time, so I figured I'd open the one and do a "save as", or a "rename". The first time it started processing, doing file loads, and then hung looking for a sub-vi, with the search address pointing to the .llb in the LV 8.5 directory where I manually located it. Once that was resolved, and the original project saved I tried again. This time it did a bunch of loading and then gave me an error box with the message:&nbsp; "LabVIEW:&nbsp; Memory is full.&nbsp; Cannot save project 'original project name.lvproj'" This isn't a big project, the machine is a new HP Compaq dual core 2.8GHz with 1.5Gb of ram, so I don't really think that it should be generating anything that big. This happens with either a "save as" or "rename". I ended up just changing the names of the .lvproj .aliases files to the one I needed and it seems to load ok, but it would be nice to understand what is happening here. &nbsp; &nbsp; This is interesting behavior, since NI actually ensured that you would now have the ability to Save As and Rename a project with the <a href="http://www.ni.com/pdf/manuals/371780c.pdf" target="_blank">release ...

&quot;filewatcher labview&quot;
Hallo &nbsp; Hat jemand von Euch bereits einen filewatcher (ein Programm das nachsieht ob ein anderes Programm Daten in ein file schreibt, und mir dann den zugriff auf diese Daten erm�glicht.) Ich ben�tige ein sollches Programm dringend Version 7.1 bis 8.2 vorhanden. &nbsp; Vielen Dank Werner Hallo Thanks for info! To you have a ready program for checking an activity on a file. How could i give a notice for a good answer! Thanks Werner &nbsp; Thanks Gerd nice day ...

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