How can I turn on LED's from a ring, but have them be transparent,(default), when not selected?

[RLemo]

Hi all,  This is probably really simple, but I'm drawing a blank.  I need to turn on 4 LED's to 9 specific colors when these colors are selected in a ring.  When a color is not selected, I would like the LED to be transparent.  I have 1 ring per LED, and 9 colors per ring.  Any suggestions?

Thank you,

Bob

[altenbach]

What about the "visible" property?

[JeffOverton]

In the case structure where you pick the color to set the LED, just have the default case be a color block set to transparent (it's the T in the top right corner of the color picker)

Message Edited by JeffOverton on 04-29-2008 03:34 PM

[TWGomez]

In a ring something is always selected...You could add one that says "Transparent" or "None" ...

[altenbach]

Since an LED is only good for two states, I would recommend a colorbox made to look like an LED:

See e.g.: http://forums.ni.com/ni/board/message?board.id=170&view=by_date_ascending&message.id=231802#M231802

Now you can just wire the desired colors, e.g. index them out of an array constant according to the ring. (the last one is transparent).

Message Edited by altenbach on 04-29-2008 12:44 PM

[RLemo]

Your suggestion worked.  With a little modification, I got the program to do exactly what I wanted it to do.  Thank you for enlightening me.

Bob