knob with my value only

[gigi85]

hello, i'm wondering if it's possible make a know that select only my value (that i have in an array)

i've tried to do as in image, but as you can see it return error

[GerdW · Accepted solution]

Hi gigi,

make a knob, set it to I32 datatype and set a range from 0 to (num-of-elements -1 ).

Now the knob will provide an index into your value array and you simply need to use an IndexArray function...

Or use a ring. Or use an enum. Or ...

[BillMe]

I was replying the same way as Gerd but we had a race condition...

[gigi85]

thhanks you both...it works but with an error 😞

in my knob now i see from 0 to 35 value...and not my real value 🙂

[GerdW]

Hi gigi,

that's not an error, it's a feature 🙂

Hide the scale and write your own text instead...

Or even better: look at the properties of your knob. You can define your own scale text, there's a special tab for!

[gigi85]

are you speaking about text labels?

i have tried them...but i should write all my 35 labels (i think they are too much) or i lose the possibility to select some value...

for example...i have 35 possible value...if i write only 10 text labels i'll can select only those 10 value...i can't select other value 😞

PS: in which way can i hide scale value?

[GerdW]

Hi gigi,

don't know the English name, I only have the German LV version available...

Yes, 35 labels are a lot of text.

- Make your knob bigger to allow more (visible) entries.

- Don't show all entries. You may still select steps in between...

- As mentioned before: use an enum or ring.

"Hiding scale values": it's all in the properties of your control...

[gigi85]

i can't make it bigger (i need this size)

Don't show all entries. You may still select steps in between... in which way?

use an enum or ring - what are them? 😄 sorry but i'm new in labview, and my english is so bad 🙂

"Hiding scale values"...in labview 7.1 this command is not present 🙂 or i too noob to find it 🙂

[GerdW]

Hi gigi,

even in LV7.1 you can right-click your knob and select "scale"->"representation" to hide the scale...

When you set your knob to a range as described above you can always select any number from that range, regardless if the scale is hidden or not and regardless if the scale shows all those numbers or just some of them...

Rings and Enum are found on their special palette. Did you tried Google to find some information about them? Did you search the LabVIEW help? Doh...

[gigi85]

i find the way to don't show them all 🙂

or using delete button or doing as in image 🙂 thanks