Allow user to change range of gauge with mouse

[Kenny_K]

I am trying to figure out how to let the user change the range of a gauge by using the mouse. So they could click on the scale, and drag the mouse and it would increase or decrease the range.

I am trying to allow the user to "zoom" in the range on the gauge to get a better look at the reading, without having the user to clock on a control (using a numeric control that is tied to the range property node.)

I was thinking that you could possibly use the mouse move event when in the bounds of the gauge and whether they moved the mouse up or down would increase/decrease the range, but I thought that there must be a simplier way to implement this that I am missing.

Thanks.

[altenbach]

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Kenny K wrote:
I was thinking that you could possibly use the mouse move event when in the bounds of the gauge and whether they moved the mouse up or down would increase/decrease the range, but I thought that there must be a simplier way to implement this that I am missing.

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I don't think there is a "simpler" way.

If you just want to temporarily "zoom" the scale into the region of the current value (e.g. to read the value more accurately or do a fine adjustment on the value), I sometimes use a "key down" event for the "ctrl" key on the control/indicator. When ctrl is pressed, the scale temporarily zooms e.g. to ±10% of the current value and releasing "ctrl" resets the scale to normal.

[Kenny_K]

I will have to use the key down in another program, thanks.

I wont be able to use it in this program, since it is a touchpanel pc, with no keyboard (other than the on screen keyboard, which is disabled), which is why I had to use the mouse

[yenknip]

You could add a slider control next to the gauge, which changes the scale property node of the gauge?

[Ben]

You could edit the Run time short-cut menu and add an item "range"

Then create an event for the guage "Shortcut Menu Selection (user)".

In run time the user can right-click and choose range which will fire the above mentioned event. In that event present a pop-up to the user and let them specify the range.

I hope that helps,

Ben