"use default range" gray for gauge/knob

Hi there - the "use default range" checkbox is gray in the gauge/knob properties in my VI. How do I change this? I am trying to implement a compass sort of thing that displays a heading that is coming in as a value from 0-360. (0 = N, 90 = E, 180 = S, 270=W). I want to change how many ticks there are, and where numbers are displayed. My understanding was that I would need to change the data range, but I can't seem to figure out how to.
What am I doing wrong?
Thanks!

Is it possible to choose how large tick marks are? I don't think there is a good way to specify variable tick lenght. Maybe I am wrong.
how do I add text labels to specific points (ie N, NW, etc.). While you can use text labels for scales, the scale becomes noncontinuous and you cannot point to intermediary values. This might not be useful. I would simply not display the marker values, but add free labels as needed.
how do I get rid of the numbers being displayed? Choose a scale style without numbers.
I don't actually want numbers to be displayed - I only want to have text direction labels and ticks. Attached is a quick modification, implementing some of the above.
For even more control (pun!), you could use the control editor.
Message Edited by altenbach on 05-13-2007 09:20 AM
LabVIEW Champion . Do more with less code and in less time .
Attachments:
Scale360a.vi ‏14 KB
compass.png ‏21 KB

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