a newbie needs help...

Hye guys,
 
I'm a newbie in LabView and i've been trying lots of exercices and read
ing help(in french, but french is not my mother tougue) but i'm st
ill having some problem (there might be a lot of 'em)
   - what's the difference between build array, bundle, build cust
le array, index & bundle cluster array?
   - in order to detect error etc, do i have to connect all the br
anch of the simple error handler? please do give some indication.i did have 
a problem using the one button dialog, when the dialog appeared and i clicke
d on ok, it wont shut the w
indow of the dialog. what's wrong with it?
   - is there any exemple or tutorial on input/output instrument, 
invoke note? a simple would be alright...at least, i could understand the fu
nction of it..
 
maybe that's all for now. but i'm still quite blur with certain of those VIs
. thanks in advanced!!!
 
Dhirah
 
 
 Message Edited by dhirah on 04-02-2008  09:52 AM

Hi Dhirah, build array and bundle are really basic functions, they are used 
to "build" arrays and clusters, respectively.BuildClusterArray and Index&
;Bundle are more compley, but easier to understand when making a small examp
le: the first one takes eac
h input array into a cluster and packs all clusters into an array, the 2nd o
ne takes the input arrays element-wise (indexing!) into clusters and all clu
sters into an array.For SimpleErrorHandler you only have to connect the erro
r-in and (only when needed)
the type of message.Give an example of your problem regarding the OneButtonD
ialog - which window doesn't close?Look for VISA examples in LabView to get 
a p at instrument in/out.InvokeNodes are completely different from instru
ment communication - and y
ou should learn at first the upper parts :smileywink:Look <a href="http://ww
w.ni.com/academic/lv_training/how_learn_lv.htm" target="_blank">here</a>!

Hye GerdW,
 
Thank you for answering my questions.
 
From your answer, i can say that buil array and bundle work the same way - g
ather the elements. How do we know which one to use everytime?  Actuall
y, right before my eyes, i have 2 exemples of bundle and build array. Bundle
 is used to get information
form 'GenerateWavefor.vi', a delta X and a Xo then those informations are th
en put into a grapht. Meanwhile, build array is used to get infromation from
 function sinus and also the 'GenerateWaveform.vi' and again put into a grap
h. That's why i said, for
me it's not celar both functon are used to gather information and put into g
raph.
 
Thanks again!
 
Dhirah
 

Hi Dhirah,in an array all elements have the same properties except their val
ue, so they are the same datatype.In a cluster you can put elements of diffe
rent datatype (like in a waveform [dbl, dbl, array of dbl] or an error clust
er [bool, int32, string]).T
hat's their main difference for general use...Now for specific use of feedin
g graphs/charts:Graph indicators are polymorph - they can take several types
 of data. Which types they take is written in the context help (ctrl-H). Tho
se different types also ser
ve some purpose like adding several points to one plot or plotting several p
lots at once - hence using BundleCluster and/or BuildArray functions.You may
 plot a simple array of values to get one plot. The same (roughly) is achiev
ed by wiring a waveform, he
re the timing (start value and distance between points) is included in the d
ata.Message Edited by GerdW on 04-03-2008  10:25 AM

hye GerdX,
 
Thanks for replying. Now i understand the difference (theorically) but i thi
nk it'll be clearer when i really get my hands on it.
 
Yeah about the simple error handle, i've got the exemple right here. When th
e dialog box pops up,meaning there's an error but then i couldnt close 
that dialog box. What seems to be the problem?
 
Dhirah


racine carree.vi:
http://forums.ni.com/attachments/ni/170/313337/1/racine carree.vi

Hi Dhirah, I don't know: when the OneButtonDialog pops up I either click "ok
" or "X" and the popup closes...

Hai dhirah,
See the modified file. Hope this is what you required.
Hope this helps....
 
Mathan

Hai dhirah,
See the modified file. Hope this is what you required.
Hope this helps....
 
Mathan


racine carree.vi:
http://forums.ni.com/attachments/ni/170/313349/1/racine carree.vi

Hey Dhirah, Maybe you press the run continuously button instead of the run b
utton, this way the program will read a negative value all the time and thus
 show the dialog.Cheers,Nuccie

Hai dhirah,
What nuccie says is absolutely right. Check with that. If problem still pers
ists post again.
Mathan